Monthly Archives: August 2019

Month: August 2019 LongLasting Quantum Memory Leads to LongDistance Quantum Communication

first_img Citation: Long-Lasting Quantum Memory Leads to Long-Distance Quantum Communication (2008, October 7) retrieved 18 August 2019 from https://phys.org/news/2008-10-long-lasting-quantum-memory-long-distance.html “Our work opens up new avenues for extending the coherence time of a quantum memory towards the seconds regime,” co-author Chih-Sung Chuu of the University of Heidelberg told PhysOrg.com. He added that a storage time of a few seconds could result in a communication distance of a few thousand miles.Most quantum memory devices reported to date use magneto-optical traps, rather than optical traps, to confine groups of atoms. However, the magnetic field limits the storage time by causing the atoms’ ground state to broaden. The broadening lingers even when the magnetic field is temporarily turned off during storage, and, without the magnetic field’s confinement, the atoms begin to diffuse after a few hundred microseconds. With this limited storage time, quantum communication cannot reach very long distances.By using an optical trap instead, the scientists could eliminate the negative effects of the magnetic field on storage time. The optical trap is formed by a tightly focused laser beam, which can trap atoms at a density of one trillion atoms per cubic centimeter. Then, a right-circularly polarized “write” beam of about 100,000 photons illuminates the group of atoms. Later, a left-circularly polarized “read” beam converts the quantum state of the atoms into a photon.“The ‘write’ beam probabilistically generates a quantum state in the atoms by interacting with them,” Chuu explained. “The ‘read’ beam is used to convert the quantum state into a photon, which can be detected by a single-photon detector.”In their demonstration, the scientists achieved storage times of 60 microseconds, but they explain that this is currently limited by the high temperature of the experiment. Cooling the atomic ensemble to a lower temperature (submicro-Kelvin, or very near absolute zero) could limit the thermal motion of the atoms, and extend the storage time. With cooler temperatures and by using an optical lattice for additional confinement, the physicists expect to achieve a storage time of several seconds. By increasing the storage time of a quantum memory device, the scientists have taken another step toward realizing long-distance quantum communication, which could be used to build quantum computers, among other innovations. Quantum computers could be extremely quick at solving certain problems, such as factoring, which would make them useful for applications that require large amounts of computing power. More information: Chuu, Chih-Sung; Strassel, Thorsten; Zhao, Bo; Koch, Markus; Chen, Yu-Ao; Chen, Shuai; Yuan, Zhen-Sheng; Schmiedmayer, Jörg; and Pan, Jian-Wei. “Quantum Memory with Optically Trapped Atoms.” Physical Review Letters 101, 120501 (2008).Copyright 2008 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. The basis for quantum communication is the ability to entangle two photons, A and B, where one photon, B, is sent down a transmission channel. There is also a third photon, C, which is entangled to a quantum state but not to the other two photons. A quantum state may be represented by a group of atoms that shares a superposition between two ground states (in superposition, both ground states exist simultaneously, and there is a certain probability that the atoms are in one ground state or the other).When physicists perform entanglement swapping by making a Bell state measurement on photons A and C, photon B also becomes immediately entangled to the quantum state, even though it has already traveled down the transmission channel. The site where the sent photon becomes entangled with the quantum state is called a quantum repeater. Quantum repeaters, which occur throughout the transmission channel, can generate and store entanglement in order to boost the signal, with the aim of getting the entangled state to reach the other end. Entanglement can be stored by some sort of quantum memory device until, ultimately, the quantum state is “read” by being converted into another photon.The key is that the quantum state should stay entangled with the sent photon for as long as possible, in order to maintain the quantum correlation throughout the transmission channel. Without a quantum memory, there is a small probability that quantum information can be transmitted over large distances, but the probability is exponentially dependent on the transmission length. With quantum memory, the transmission probability is only polynomially dependent on the length, greatly reducing the waiting time for a successful transmission. Physicists are currently working to improve the storage times of quantum memory devices. Recently, a team of scientists from the University of Heidelberg in Germany, the University of Science and Technology of China in Heifei, China, and the Atominstitute der Österreichischen Universitäten in Vienna, Austria, has demonstrated a new way to extend the storage time of quantum memory devices. For the first time, the scientists successfully used an optical trap to confine a group of atoms, in which the quantum state is stored. The scientists predict that the method could greatly exceed previous storage times that are on the order of microseconds. (PhysOrg.com) — Physicists have taken a step closer to realizing long-distance quantum communication, in which a quantum state is transferred from one location to another by becoming entangled with a traveling photon. Explore furthercenter_img Optimizing the growth of coatings on nanowire catalysts (A) In the scientists’ apparatus, the atomic ensemble is confined in an optical trap formed by a focused laser beam. This beam is overlapped with counterpropagating “write” and “read” beams. The resulting Stokes and anti-Stokes photons are detected, serving as a useful probe for quantum memory storage. (B) An absorption image of the optically trapped atoms. Image: Thorsten Strassel. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Month: August 2019 Smart wound dressings could identify and destroy infectioncausing bacteria

first_img(PhysOrg.com) — Although bacterial infection as a clinical problem was reportedly defeated with the widespread use of antibiotics in the 1950s, its re-emergence over the last few decades has persuaded researchers to develop new methods for killing and preventing the growth of pathogenic bacteria. In a new study, a team of chemists from the University of Bath, UK, have taken steps to engineer a “smart” wound dressing system that releases an encapsulated antimicrobial agent only in the presence of pathogenic bacteria, allowing the body’s normal microflora to continue providing a natural defense against infection. Explore further The prototype wound dressing is made of a nonwoven polypropylene fabric. Attached to the fabric are vesicles containing an antibacterial agent. One of the virulence factors of many pathogenic bacteria (but not nonpathogenic bacteria) is that they secrete toxins or enzymes that damage vesicle membranes by lysing (bursting) them. When the pathogenic bacteria lyse the membranes of the vesicles attached to the smart fabric, the vesicles rupture, releasing the antibacterial agent and destroying the bacteria. In this way, the vesicle system can be thought of as a “Trojan horse,” inciting pathogenic bacteria to act as agents of their own destruction.In their experiments, the researchers took samples of a viable bacterial population of two species (Staphylococcus aureus and Pseudomonas aeruginosa) every 20 minutes for four hours following exposure to the smart fabric. They observed significant decreases in the concentrations of both species, and eventually nearly complete inhibition. The researchers also found that concentrations of P. aeruginosa declined at a faster rate than S. aureus due to P. aeruginosa’s greater sensitivity to the encapsulated antimicrobial agentFurther, the researchers observed that, in uninfected samples that contained only non-pathogenic Escherichia coli, concentrations of the E. coli were only slightly reduced, which likely resulted from minor leakage of the vesicles. By ensuring that the antibacterial agent is released only in the presence of pathogenic bacteria, the strategy minimizes evolutionary pressure for the selection of antibiotic-resistant bacteria, prolonging the effectiveness of the antibacterial agent.“The potential significance of this work is that we have a proof-of-principle of a ‘smart’ system which is able to discriminate between pathogenic and non-pathogenic bacteria,” coauthor Toby Jenkins of the University of Bath told PhysOrg.com. “The advantage of this in a wound dressing is that it will only release an antimicrobial if the wound becomes infected with dangerous bacteria, but won’t respond to harmless commensal bacteria which may be present. This reduces the evolutionary selection pressure on bacteria of all types to evolve resistance and should slow the emergence of new antibiotic resistant species of bacteria such as MRSA.” Citation: ‘Smart’ wound dressings could identify and destroy infection-causing bacteria (2010, May 6) retrieved 18 August 2019 from https://phys.org/news/2010-05-smart-wound-infection-causing-bacteria.html More information: Jin Zhou, Andrew L. Loftus, Geraldine Mulley, and A. Toby A. Jenkins. “A Thin Film Detection/Response System for Pathogenic Bacteria.” J. Am. Chem. Soc. Doi:10.1021/ja101554a “From a clinical perspective, especially in the treatment of pediatric burns, there is an enormous advantage in being able to leave a dressing in situ for as long as possible following a burn, as this promotes healing, reduces trauma and ultimately saves money,” Jenkins said.Overall, the researchers have shown that one of the very features that makes some bacteria pathogenic – the ability to damage cell membranes – can be used against them. However, before the smart fabric can be commercially produced, the researchers still must find solutions to several problems, including vesicle stability, tuning of response, and manufacturability, among others. “We hope to have a full working prototype, with a clear pathway to manufacturability by 2014,” Jenkins said. “We envisage a further three to four years of safety and compliance testing, so 2017 is probably the earliest realistic target for coming to market.”Still, as Jenkins explained, no matter how advanced such technology becomes, it will not be possible to fully eliminate the threat of clinical bacterial infection, as thought in the ‘50s. Instead, the battle will be an ongoing one.“The process of evolution by natural selection – the process by which we evolved and bacteria evolve antibiotic resistance – is too powerful a force [to allow antibacterial agents to eliminate pathogenic bacterial infection],” he said. “But we can try to be clever, understand better how this process works, and try to stay one step ahead of Nature.” Researchers to develop coatings that kill superbugscenter_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. When toxins secreted from pathogenic bacteria lyse a vesicle containing an antibacterial agent, the agent destroys the bacteria. Image credit: Zhou, et al. ©2010 American Chemical Society. In addition to controlling bacterial growth and infection, the researchers intend to enable the smart fabric to change color on infected wounds. They explain that a simple colorimetric or fluorometric response could be built into the fabric, giving patients and clinicians early warning of wound infection. These fluorescence images show vesicles containing an antibacterial agent in the presence of three bacteria species. The two pathogenic bacteria species (top two rows) lyse the vesicle membrane, causing it to lose its encapsulated dye, while nonpathological E. coli does not damage the vesicle membrane. Image credit: Zhou, et al. ©2010 American Chemical Society. Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com.last_img read more

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Month: August 2019 Lenovo applies for a patent for a grip tablet keyboard

first_imgThe patent application was apparently made back in 2010, but thus far, Lenovo has not made such a device available for sale. It’s not known if they plan to, or if the company decided the idea wouldn’t sell. At any rate, the dual keypads talk to the tablet wirelessly either through Bluetooth or infrared, and because they are clamped on when needed, can be placed anywhere on the tablet. Their small size also makes them much more portable than a wireless keyboard.The patent application also notes that the original design calls for a standard QWERTY keyboard, though others might be added as well and that the dual keyboards can also be placed flat on a table in front of the tablet, if desired, to serve in a more conventional way. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. (Phys.org) — With the introduction of the tablet computer, users of such devices have been forced to make some tradeoffs regarding keyboards. Virtually all tablets make use of image display and finger touching or tapping to create a virtual keyboard, which for many, is not nearly the same as one that provides the tactile feedback of keys being pressed and released. To get around this, many have resorted to purchasing wireless keyboards, which do offer the ease of typing, but detract from the portability that is so critical to the tablet experience. Now, according to Patentbolt, Chinese hardware maker Lenovo has applied for a patent that gives users the best of both worlds. Explore further Tablet keyboard cases turn Android devices into netbookscenter_img Citation: Lenovo applies for a patent for a grip tablet keyboard (2012, May 29) retrieved 18 August 2019 from https://phys.org/news/2012-05-lenovo-patent-tablet-keyboard.html The idea is rather clever. Instead of going with a standard keyboard shape or trying to create a big overlay, Lenovo has come up with a way to clamp two tiny keyboard devices to either side of a tablet with tiny cell phone size keys on both top and bottom. Users hold onto their tablet by holding onto the keyboards, or more descriptively, their keypads. Each keypad has keys on both the top and bottom part; one has the keys for typing words and numbers, the other for control mechanisms such as the space bar, or Ctrl key. If the lettered keys are on the bottom side, users can type with their fingers as they grip. Conversely, if the keys are on the top side, they can type as they do with messaging on their cell phones, i.e. using their thumbs. © 2012 Phys.Orglast_img read more

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Month: August 2019 Chinese researchers find Bt cotton controls pests while also promoting good bugs

first_img China’s GM cotton farmers are losing money Journal information: Nature Citation: Chinese researchers find Bt cotton controls pests while also promoting good bugs (2012, June 14) retrieved 18 August 2019 from https://phys.org/news/2012-06-chinese-bt-cotton-pests-good.html More information: Widespread adoption of Bt cotton and insecticide decrease promotes biocontrol services, Nature (2012) doi:10.1038/nature11153AbstractOver the past 16 years, vast plantings of transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) have helped to control several major insect pests and reduce the need for insecticide sprays. Because broad-spectrum insecticides kill arthropod natural enemies that provide biological control of pests, the decrease in use of insecticide sprays associated with Bt crops could enhance biocontrol services. However, this hypothesis has not been tested in terms of long-term landscape-level impacts10. On the basis of data from 1990 to 2010 at 36 sites in six provinces of northern China, we show here a marked increase in abundance of three types of generalist arthropod predators (ladybirds, lacewings and spiders) and a decreased abundance of aphid pests associated with widespread adoption of Bt cotton and reduced insecticide sprays in this crop. We also found evidence that the predators might provide additional biocontrol services spilling over from Bt cotton fields onto neighbouring crops (maize, peanut and soybean). Our work extends results from general studies evaluating ecological effects of Bt crops by demonstrating that such crops can promote biocontrol services in agricultural landscapes. Explore further © 2012 Phys.Orgcenter_img In their paper, the researchers report that cotton growers in China raising Bt cotton experience lower levels of bollworms than when using non genetically modified cotton and that they were able to reduce the amount of insecticide needed to control the pests as well. But perhaps more interestingly, they found that when conducting surveys in the Bt cotton fields, that many more lady bugs, spiders and other insects that feed on pests such as aphids were found, and better yet, were also more abundant in adjacent fields as well. Thus by growing Bt cotton, farmers are getting more from their fields while at the same time promoting the growth of “good” bugs that feed on other bad ones.Bt cotton is the only approved genetically modified crop being grown in China, and has been grown there since 1997. Current estimates suggest that as much as ninety five percent of all cotton now grown in that country is of the genetically modified variant, though its use is not without controversy.Most governments around the world including those in the United States, Asia, Europe and especially Africa have thus far slowed the movement of edible crops onto consumers dinner plates, fearing that some unknown disease might arise from their consumption. Even non-edible crops such as altered cotton have caused controversy due to studies being done in India that suggest that farmers that grow Bt cotton have a higher suicide rate than the rest of the country. Despite the lack of concrete proof, there persists a degree of suspicion and that has been enough to slow its use in that country.Despite the fact that genetically altered plants have been studied for decades, there is still fear among the general population that some tragedy will befall those who eat the results, thus, more research such as that being conducted in China will have to be done before common use of genetically altered crops becomes a reality. Cotton plant. Photo courtesy of USDA Natural Resources Conservation Service. (Phys.org) — Because they can modify plants to either produce better fruit or in many other cases ward off disease and pests, researchers genetically alter crop plants to increase yields without adding additional costs to the process. One such success story is Bt cotton, a strain developed in the lab and so named because it harbors Bacillus thuringiensis, a bacterium that produces a chemical harmful to some insects and thus is often used as a pesticide. Farmers in the United States have been using it since 1996, and report that since that time, average yields have been up 5% even as costs have gone down due to use less of other pesticides. Now, researchers in China are reporting that not only does planting Bt cotton reduce losses from pests, it also allows other beneficial insect populations to increase not just in the cotton fields, but in those nearby growing other crops as well. The team has published its findings in the journal Nature. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Month: August 2019 Researchers use new technique to date CAIs and chondrules

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: The Absolute Chronology and Thermal Processing of Solids in the Solar Protoplanetary Disk, Science, 2 November 2012: Vol. 338 no. 6107 pp. 651-655 DOI: 10.1126/science.1226919ABSTRACTTransient heating events that formed calcium-aluminum–rich inclusions (CAIs) and chondrules are fundamental processes in the evolution of the solar protoplanetary disk, but their chronology is not understood. Using U-corrected Pb-Pb dating, we determined absolute ages of individual CAIs and chondrules from primitive meteorites. CAIs define a brief formation interval corresponding to an age of 4567.30 ± 0.16 million years (My), whereas chondrule ages range from 4567.32 ± 0.42 to 4564.71 ± 0.30 My. These data refute the long-held view of an age gap between CAIs and chondrules and, instead, indicate that chondrule formation started contemporaneously with CAIs and lasted ~3 My. This time scale is similar to disk lifetimes inferred from astronomical observations, suggesting that the formation of CAIs and chondrules reflects a process intrinsically linked to the secular evolution of accretionary disks.Press release Chondrules from the chondrite Grassland, L4. Credit: Wikipedia. Explore further Citation: Researchers use new technique to date CAIs and chondrules (2012, November 2) retrieved 18 August 2019 from https://phys.org/news/2012-11-technique-date-cais-chondrules.html Chondrules younger than thoughtcenter_img Journal information: Science © 2012 Phys.org (Phys.org)—Researchers working out of the University of Copenhagen have published a paper in the journal Science in which they claim that a new method of dating chondrules and calcium-aluminum–rich inclusions (CAIs) is more accurate than previous methods. Their dating method produces results that contradict earlier findings that have suggested that chondrules formed up to 2 million years later than CAIs; instead they say, the two materials found in meteorites formed at roughly the same time. Scientists believe that the sun and all of its orbiting bodies formed from a spinning disk approximately 4.6 billion years ago. Theory suggests the sun came first, initially surrounded by a cloud of dust and gas that over time became the planets, comets and asteroids. But for that to happen, some bit of material had to bind together first, and researchers believe two of them – chondrules and CAIs – are still present in modern meteorites. Up till now however, there has been disagreement among researchers regarding the age of such materials found in meteorite samples that have struck the Earth.Prior attempts to measure the age of materials in meteorite samples involved using techniques to discern how much aluminum 26 was present. The thinking was that differences in the levels of the isotope indicated different ages. The problem with this methodology, the new team points out, is that it ignores the possibility that objects forming in different locations might naturally have different amounts of the isotope in them.Their new technique involves isolating small amounts of lead found in a sample and then measuring the isotopic composition of both it and uranium and then calculating the age of the material using the known rate of decay of uranium. Using this method, the team calculated that both materials in a meteorite sample were approximately 4.56730 billion years old. And because their method is so precise they say the error rate of their technique is just 160,000 years.If the new method for calculating the age of chondrules and CAIs is adopted by the scientific community it will likely mean revising some ideas regarding the makeup of the early universe.last_img read more

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Month: August 2019 Astronomers observe mysterious dimming of a young nearby star

first_img © 2016 Phys.org Explore further Irregular dimming of a young stellar object investigated by astronomers RIK-210 is around five to 10 million years old, about half as massive as the sun and has a radius of approximately 1.24 solar radii. The star has been recently observed by NASA’s prolonged Kepler mission, known as K2, during its Campaign 2, lasting from Aug. 22 to Nov. 11, 2014. A team of researchers led by Trevor David of the California Institute of Technology (Caltech) has analyzed the data provided by K2.”We find transient, transit-like dimming events within the K2 time series photometry of the young star RIK-210 in the Upper Scorpius OB association. These dimming events are variable in depth, duration, and morphology,” the scientists wrote in the paper.The team found that these dimming events occur approximately every 5.67 days, in phase with the stellar rotation, noting that they are deep (sometimes greater than 15 percent) and short in duration relative to the rotational period. Moreover, the morphology of the dimmings is variable throughout the whole observational campaign, while the starspot modulation pattern remains stable over this period of time.While such variable dimmings have been documented around mature stars and stellar remnants, it has not been previously observed around a young star lacking a protoplanetary disk, as in the case of RIK-210.In the search for possible explanations of the observed transient, transit-like dimming events, the researchers at first excluded the possibility that they can be caused by an eclipsing stellar or brown dwarf companion. This hypothesis was ruled out as it is inconsistent with radial velocity measurements as well as with archival and follow-up photometry data.The researchers emphasized that the dimmings cannot be due to a single spherical body because of the variable morphology of these events. They added that based on the observed depths and durations, it is also unlikely that the dimmings could be explained by features on the stellar surface.According to the team, the most plausible explanation of the nature of the obscuring material is that it could be a magnetospheric cloud. They assume that a cloud of plasma analogous to those observed in high-mass stars, or a dusty accretion column, could naturally explain the synchronicity between the rotation period and the dimming events.”Since the accretion timescale is … much shorter than the orbital period, this model might explain the variable depths and morphologies of dimming events,” the paper reads.Other explanations taken into account by the researchers are: an accretion flow from residual gas and dust, remnants of the late stages of planet formation, the product of a giant-impact type collision, an enshrouded protoplanet with an extended tail, or one or more eccentric bodies undergoing periodic tidal disruption upon each periastron passage.In order to finally confirm which of the proposed hypotheses is true, the team calls for continued photometric and spectroscopic monitoring.”Multi-band photometric monitoring can be used to test whether the dip depths are wavelength-dependent; solid-body transits are achromatic, while extinction by dust is less severe at redder wavelengths. Finally, spectroscopic monitoring while the star is known to be dimming can test whether there is enhanced absorption by a gaseous cloud transiting the star,” the scientists concluded. More information: A Transient Transit Signature Associated with the Young Star RIK-210, arXiv:1612.03907 [astro-ph.SR] arxiv.org/abs/1612.03907AbstractWe find transient, transit-like dimming events within the K2 time series photometry of the young star RIK-210 in the Upper Scorpius OB association. These dimming events are variable in depth, duration, and morphology. High spatial resolution imaging revealed the star is single, and radial velocity monitoring indicated that the dimming events can not be due to an eclipsing stellar or brown dwarf companion. Archival and follow-up photometry suggest the dimming events are transient in nature. The variable morphology of the dimming events suggests they are not due to a single, spherical body. The ingress of each dimming event is always shallower than egress, as one would expect for an orbiting body with a leading tail. The dimming events are periodic and synchronous with the stellar rotation. However, we argue it is unlikely the dimming events could be attributed to anything on the stellar surface based on the observed depths and durations. Variable obscuration by a protoplanetary disk is unlikely on the basis that the star is not actively accreting and lacks the infrared excess associated with an inner disk. Rather, we explore the possibilities that the dimming events are due to magnetospheric clouds, a transiting protoplanet surrounded by circumplanetary dust and debris, eccentric orbiting bodies undergoing periodic tidal disruption, or an extended field of dust or debris near the corotation radius. Flattened and median filtered K2 light curve of RIK-210. The data are phase-wrapped on the dip period of 5.6685 days. A grouping of shallow dips preceding the main dip is prominent for the first four rotation periods of the campaign, then largely disappears. Variability fit B was used to make this figure. Credit: David et al., 2016. (Phys.org)—Astronomers have spotted transient, transit-like dimming events of a young star named RIK-210 located some 472 light years away in the Upper Scorpius OB association. However, what puzzles the scientists is the mystery behind this dimming as it can not be caused by an eclipsing stellar or brown dwarf companion. They describe their search for plausible explanations in a paper published Dec. 12 on the arXiv pre-print server. Citation: Astronomers observe mysterious dimming of a young nearby star (2016, December 16) retrieved 18 August 2019 from https://phys.org/news/2016-12-astronomers-mysterious-dimming-young-nearby.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Month: August 2019 Physicists detect exotic looped trajectories of light in threeslit experiment

first_imgThe red path shows an exotic looped trajectory of light through a three-slit structure, which was observed for the first time in the new study. Credit: Magaña-Loaiza et al. Nature Communications Journal information: Nature Communications (Phys.org)—Physicists have performed a variation of the famous 200-year-old double-slit experiment that, for the first time, involves “exotic looped trajectories” of photons. These photons travel forward through one slit, then loop around and travel back through another slit, and then sometimes loop around again and travel forward through a third slit. Superposition revisited: Proposed resolution of double-slit experiment paradox using Feynman path integral formalism So far, all previous versions of the experiment have produced results that appear to be accurately described by the principle of superposition. This is because looped trajectories are so rare under normal conditions that their contribution to the overall interference pattern is typically negligible, and so applying the superposition principle to those cases results in a very good approximation. Straight trajectories (green) and exotic looped trajectories (red, dashed, dotted) of light, where the red cloud near the surface depicts the near fields, which increase the probability of photons to follow looped trajectories. The graphs at left show simulations (top) and experimental results (bottom) of the large difference in interference patterns created by illuminating only one slit being treated independently (gray line) and the actual coupled system (blue line). The remarkable difference between the gray and blue lines is caused by the looped trajectories. Credit: Magaña-Loaiza et al. Nature Communications Citation: Physicists detect exotic looped trajectories of light in three-slit experiment (2017, January 6) retrieved 18 August 2019 from https://phys.org/news/2017-01-physicists-exotic-looped-trajectories-three-slit.html © 2017 Phys.org Explore further More information: Omar S. Magaña-Loaiza, Israel De Leon et al. “Exotic looped trajectories of photons in three-slit interference.” Nature Communications. DOI: 10.1038/ncomms13987 Interestingly, the contribution of these looped trajectories to the overall interference pattern leads to an apparent deviation from the usual form of the superposition principle. This apparent deviation can be understood as an incorrect application of the superposition principle—once the additional interference between looped and straight trajectories is accounted for, the superposition can be correctly applied.The team of physicists, led by Omar S. Magaña-Loaiza and Israel De Leon, has published a paper on the new experiment in a recent issue of Nature Communications. Loops of light”Our work is the first experimental observation of looped trajectories,” De Leon told Phys.org. “Looped trajectories are extremely difficult to detect because of their low probability of occurrence. Previously, researchers had suggested that these exotic trajectories could exist but failed to observe them.”To increase the probability of the occurrence of looped trajectories, the researchers designed a three-slit structure that supports surface plasmons, which the scientists describe as “strongly confined electromagnetic fields that can exist at the surface of metals.” The presence of these electromagnetic fields near the three slits increases the contribution of looped trajectories to the overall interference pattern by almost two orders of magnitude.”We provided a physical explanation that links the probability of these exotic trajectories to the near fields around the slits,” De Leon said. “As such, one can increase the strength of near fields around the slits to increase the probability of photons following looped trajectories.” Superposition principle accounting for looped trajectoriesThe new three-slit experiment with looped trajectories is just one of many variations of the original double-slit experiment, first performed by Thomas Young in 1801. Since then, researchers have been performing versions that use electrons, atoms, or molecules instead of photons.One of the reasons why the double-slit experiment has attracted so much attention is that it represents a physical manifestation of the principle of quantum superposition. The observation that individual particles can create an interference pattern implies that the particles must travel through both slits at the same time. This ability to occupy two places, or states, at once, is the defining feature of quantum superposition. It is when the contribution of the looped trajectories becomes non-negligible that it becomes apparent that the total interference is not simply the superposition of individual wavefunctions of photons with straight trajectories, and so the interference pattern is not correctly described by the usual form of the superposition principle. Magaña-Loaiza explained this apparent deviation in more detail:”The superposition principle is always valid—what is not valid is the inaccurate application of the superposition principle to a system with two or three slits,” he said.”For the past two centuries, scientists have assumed that one cannot observe interference if only one slit is illuminated in a two- or three-slit interferometer, and this is because this scenario represents the usual or typical case. “However, in our paper we demonstrate that this is true only if the probability of photons to follow looped trajectories is negligible. Surprisingly, interference fringes are formed when photons following looped trajectories interfere with photons following straight (direct) trajectories, even when only one of the three slits is illuminated. “The superposition principle can be applied to this surprising scenario by using the sum or ‘superposition’ of two wavefunctions; one describing a straight trajectory and the other describing looped trajectories. Not taking into account looped trajectories would represent an incorrect application of the superposition principle.”To some extent, this effect is strange because scientists know that Thomas Young observed interference when he illuminated both slits and not only one. This is true only if the probability of photons following looped trajectories is negligible.”In addition to impacting physicists’ understanding of the superposition principle as it is applied to these experiments, the results also reveal new properties of light that could have applications for quantum simulators and other technologies that rely on interference effects.”We believe that exotic looped paths can have important implications in the study of decoherence mechanisms in interferometry or to increase the complexity of certain protocols for quantum random walks, quantum simulators, and other algorithms used in quantum computation,” De Leon said. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Month: August 2019 Clawlike nanowires filter bacteria from blood

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Journal information: Nature Communications While most people are familiar with bacterial infections that appear on or near the skin, there are other types that occur inside of the body. One of the most dangerous situations is when bacteria multiply in the bloodstream—a circumstance that can lead to sepsis. Currently, such infections are treated with antibiotics; if they do not work, the next step is to connect a patient to a dialyser —a machine that filters the blood, removing bacteria. Unfortunately, as the researchers note, current dialysers are not very good at filtering bacteria and patients suffer as a result. In this new effort, the researchers have developed a new type of dialyser that they claim does a far better job.The idea for the new dialyser, the team notes, came from the Venus flytrap—it has tiny hairs that curl and trap prey. To create a dialyser with a similar dynamic, the researchers built a substrate of 3-D carbon foam and implanted a host of flexible polycrystalline nanowires inside of it. Prior research by the team suggested that the nanowires would bend and trap bacteria in a way similar to the hairs on the flytrap. The researchers tested the dialyser by pushing blood through the filter and then noting reductions in blood bacteria levels. They examined the filter to note how many were captured by the nanowires.The researchers report that their filter was 97 percent effective in capturing bacteria in blood samples moving at rates similar to those inside the body. They note that their work is still at the proof-of-concept stage and thus more work is required to make sure that the filter does not cause other problems while filtering bacteria. But they describe their device as a major step forward, and plan further tests to see if it might also be used to filter out other microorganisms, such as cancer cells or viruses. Explore further Genetic study of soil organisms reveals new family of antibiotics A team of researchers from institutions across China has developed a new type of dialyser —one capable of capturing up to 97 percent of bacteria present in a blood sample. In their paper published in the journal Nature Communications, the group explains the origins of their device, how the filter was made and how well it worked during testing.center_img More information: Lizhi Liu et al. Bacterial capture efficiency in fluid bloodstream improved by bendable nanowires, Nature Communications (2018). DOI: 10.1038/s41467-018-02879-9AbstractBacterial infectious diseases, such as sepsis, can lead to impaired function in the lungs, kidneys, and other vital organs. Although established technologies have been designed for the extracorporeal removal of bacteria, a high flow velocity of the true bloodstream might result in low capture efficiency and prevent the realization of their full clinical potential. Here, we develop a dialyzer made by three-dimensional carbon foam pre-grafted with nanowires to isolate bacteria from unprocessed blood. The tip region of polycrystalline nanowires is bent readily to form three-dimensional nanoclaws when dragged by the molecular force of ligand-receptor, because of a decreasing Young’s moduli from the bottom to the tip. The bacterial capture efficiency was improved from ~10% on carbon foam and ~40% on unbendable single-crystalline nanowires/carbon foam to 97% on bendable polycrystalline nanowires/carbon foam in a fluid bloodstream of 10 cm s−1 velocity. © 2018 Medical Xpress Citation: Claw-like nanowires filter bacteria from blood (2018, February 13) retrieved 18 August 2019 from https://phys.org/news/2018-02-claw-like-nanowires-filter-bacteria-blood.html Fabrication and characterization of a dialyzer. a Schematic illustration of the complex blood environment in a blood vessel demonstrating the challenge of bacterial capture. b Blood cleansing by flowing the bacteria-contaminated blood through a dialyzer. c SEM image showing the internal structure of a dialyzer composed of NWs pre-grown on CF, and a photo of whole NWs/CF shown in the inset. Scale bars in c and inset are 250 μm and 1 cm, respectively. d–g Structural characterization of single-crystalline NWs. d Low- and high-magnification (inset) SEM images. e TEM image showing the NW has only one crystal domain. f HRTEM image and g responding SAED pattern demonstrate single crystal feature. h–k Structural characterization of polycrystalline NWs. h Low- and high-magnification (inset) SEM images. i TEM image of an individual NiCo2O4 NW showing multi-grain boundaries. j HRTEM image and k responding SAED pattern confirm the multi-crystal zones. Scale bars in d and h are 10 μm. Scale bars in the insets of d and h are 500 nm. Scale bars in e and i are 200 nm. Scale bars in f and j are 5 nm. Credit: Nature Communications (2018). DOI: 10.1038/s41467-018-02879-9last_img read more

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Month: August 2019 Remembering the maestro

first_imgOxford Bookstore Connaught Place in association with Delhi Diary hosted Remembering Ravi Shankar, an evening dedicated to the legendary musician as Sujit Sanyal presented an audio visual talk show on the life of the extraordinary musician. Pandit Ravi Shankar was one of the best-known exponents of sitar and a composer of Hindustani classical music. He is the recipient of several prestigious awards like Sangeet Natak Akademi Award, Padma Bhushan, Padma Vibhushan and Bharat Ratna. Shankar was born in Varanasi (Kashi) and spent his youth touring Europe and India with the dance group of his brother Uday Shankar. He gave up dancing in 1938 to study sitar playing under court musician Allauddin Khan. After finishing his studies in 1944, Shankar worked as a composer, creating the music for the Apu Trilogy by Satyajit Ray, and was music director of All India Radio. Shankar was born Robindro Shankar on April 7, 1920, in Benares, which is considered the holiest of cities in India. He was the youngest son of a family of Bengali Brahmins, coming from an upper-class background.last_img read more

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Month: August 2019 BJP trying to communalise Bihar atmosphere Nitish

first_imgBihar Chief minister Nitish Kumar today charged the Bharatiya Janata Party (BJP) of trying to communalise the election atmosphere in the state saying the party is in “panic in the face of defeat.” Kumar said the BJP has neither any ‘leader’ nor any ‘policy and intention’ to show the people, and therefore, was trying to communalise the situation.”BJP in panic – without neta, niti & niyat in Bihar & facing defeat they’re brazenly attempting to communalise & mask it with Modi’s rhetorics,” Kumar said in a tweet. Also Read – Punjab on alert after release of excess water from Bhakra damAddressing a public meeting, Kumar asked people to remain ‘alert’ as there would be attempts to create tension among communities to rake up emotion before the five-phase Assembly polls beginning October 12. Kumar’s comment came in view of the lynching of a man in Bishada village of Uttar Pradesh recently following rumours that the family had consumed and stored beef.”You (people) have to maintain peace and harmony at any cost. It is their (BJP’s) design to provoke you in order to reap (political) dividends,” the senior JD(U) leader said.Terming the BJP led NDA a divided house, Kumar said a leader of one NDA constituent is making public statement against the leader of another partner.last_img read more

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Month: August 2019 Firhad Hakim calls meeting to assess health of other flyovers

first_imgKolkata: Taking a precautionary measure after the Majerhat Bridge incident, Kolkata Metropolitan Development Authority (KMDA) will be carrying out a study to check the present “health” of the flyovers under its jurisdiction.Firhad Hakim, the state Urban Development and Municipal Affairs minister, held a high level meeting at Writers’ Building on Wednesday. Sources said that during the meeting, the minister has directed the concerned officials to take necessary steps to check the health of flyovers under its jurisdiction. Also Read – Rain batters Kolkata, cripples normal lifeIt may be mentioned that Majerhat Bridge is around 54-years-old. The incident has claimed two lives and left 24 injured, according to information available till now.In such a situation, KMDA is taking necessary steps to check the health of the flyovers, so that repairing work can be undertaken if and when required.There are many flyovers under the jurisdiction of KMDA, including Chingrighata Flyover, Ultadanga Flyover, Dhakuria Bridge, Maa Flyover, AJC Bose Road Flyover and Lake Gardens Flyover. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedIt may be recalled that a portion of one wing of Ultadanga Flyover had collapsed in 2013. The incident took place just two years after the flyover was inaugurated in 2011. The flyover, which connects VIP Road with EM Bypass, was once again opened in 2014, after the necessary repair work.Similarly, Chingrighata Flyover is also an old one and the study will help in knowing its present health. It was June 2016 when engineers from RITES had visited the Chingrighata Flyover for inspection, as some cracks were then identified on certain parts of the bridge. Later, the KMDA officials had confirmed that the cracks were just on the upper surface of the plaster.It may be mentioned that there are some bridges in the city including Brace Bridge and Tolly Nallah Setu, where some cracks have also been spotted. The Tolly Nallah Setu was constructed in 1936. Cracks were also found on railings of the bridge.last_img read more

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Month: August 2019 Train services resume in Sealdah Budge Budge section

first_imgKolkata: Train services in the Sealdah Budge Budge section resumed on Sunday afternoon, after suspension of services from 10.10 pm on Saturday for construction of the new level-crossing gate.”The traffic and power block between Ballygunge and Budge Budge due to construction of the new level-crossing gate between New Alipore and Majerhat had started on Saturday night. Our engineers have worked on a war footing and finished the construction of the level-crossing. The work ended at 3.25 pm on Sunday and normal train services resumed from 4.03 pm,” said a senior spokesperson of Eastern Railway. Also Read – Rain batters Kolkata, cripples normal lifeThree Up and two Down EMU locals were cancelled on Saturday and 16 pairs of locals on Sunday, for construction of the level-crossing.According to sources in ER, the railways will come up with boom barrier for regulating the traffic over the railway tracks. “Work for the boom will commence soon and we hope to finish it before the pujas. We will also come up with a temporary cabin with lodging facilities for a cabin man and some other officials for assisting him. These officials will be responsible for regulating traffic movement in the level-crossing” an ER official said, assuring that there will be no more suspension of train services. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe state government is also busy creating a new road on the southward extension of Alipore Avenue till Humayun Kabir Sarani in New Alipore that will connect Behala and Alipore. “The bailey bridge on the canal will be placed soon after the civil work for the roads gets done. We are hopeful of completing work before the pujas,” an engineer of Kolkata Metropolitan Development Authority (KMDA) said.The bailey bridge on Chetla Canal and the level-crossing will connect the southward extension of Alipore Avenue to Block G in New Alipore, from where it would move around 600 metres to connect with Humayun Kabir Sarani. It will help city-bound vehicles from Behala reach Raja Santosh Road.”Small vehicles from parts of Behala and even New Alipore will be directed down this new road during the morning rush hour. In the evening the flow may be reversed,” a senior official of Kolkata Police’s Traffic department said.last_img read more

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Month: August 2019 Thank god its foody friday

first_imgThe city of joys’ very own TGI Fridays; known for its innovation in food and beverages has come up with a wide range of new food offerings. Guests can now come and enjoy some of the finest creations in the art of food from a range of appetizers, salads, sandwich, pastas and entrees.Two exciting flavours of chicken wings are on offer, spicy bloody mary wings that are tossed with spicy vodka bloody mary sauce or try the sweet and spicy kung pao wings. What’s even more exciting is that the guest can now opt for boneless wings. Guests can also choose from an array of items like crispy pork belly tostadas loaded with melted cheese. Chimichurri chicken skewers – fire grilled to perfection. Also Read – Add new books to your shelfFor the main course, pork lovers must try the crispy braised glazed pork belly that’s fork tender on the inside, and flavorful parmesan crusted chicken are sure to suit any palette. Two amazing burger options, wingsman burger with blackened lamb patty topped off with frank’s red hot chicken wings. The Hangover Burger is a sure cure for the hangover with fried egg – sunny side up, a tasteful and visual delight. Also added to the menu are Italian delights like Quattro Formaggi Pizza, bursting with flavours for four cheeses – mozarella, cheddar, jack and parmesan. Or better still dig into Red Pepper Mushroom and Penne Pasta made in creamy roasted red pepper sauce. Enjoy your meal with one of the newly introduced Blackberry LIIT or the Ultimate Pomegranate Margarita. More new drinks on the menu include Tennessee Peach, London Smash, Dirty Martini, Botanical Punch, Strawberry Lynchburg Lemonade. Ending on a sweet note, with Apple Cinnamon Cheesecake that’s served with apple butter sauce and is a not-to-be-missed item from the menu.last_img read more

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Month: August 2019 Its bullock cart of BJP vs ericks of Trinamool

first_imgKolkata: Lok Sabha candidates in West Bengal’s Birbhum district are seeking to exploit all modes of transport to attract attention. While one candidate chose bullock cart, another decided to drive an e-rickshaw. Actor-turned-politician Satabdi Roy, seeking to retain the Birbhum Lok Sabha seat she had won for the Trinamool Congress in 2009 and 2014, was seen riding an e-rickshaw all by herself while campaigning in villages of the Rampurhaat locality. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: Mamata Roy, clad in a pink saree and donning sunglasses, also participated in a tribal dance with the women folk of the locality. Not to be outdone, her Bharatiya Janata Party (BJP) rival Dudh Kumar Mondal rode a bullock cart to interact with the people of another Panchayat area. The Birbhum constituency will go to polls on April 29 in the fourth of the seven-phased Lok Sabha election in the state.last_img read more

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Month: August 2019 XGEPLs initiative towards a greener future

first_imgXGEPL has partnered with Indraprastha Gas Limited (IGL) for the implementation of its green drive in the region of Delhi and NCR, for carrying out conversion of already in-use diesel generators for the existing IGL customers being supplied PNG. In the pilot phase, the company has converted in-use three diesel generators in institutions using Euro IV technology and have been made operational. Apart from contributing to the environment, these gas based gensets would reduce the operational cost by around 40% as compared to diesel run gensets. Also Read – Add new books to your shelfE S Ranganathan, Managing Director, Indraprastha Gas Limited inaugurated first of this gas based 125 KVA genset at General William Masonic Polyclinic at Janpath on March 11, 2019, in the presence of Yash Arora and Vikram Bakshi, Directors of XGEPL. Xpert Gas Equipments Pvt Ltd (XGEPL) primarily deals in the conversion of industrial and residential diesel generators to operate on natural gas. Their working technology is not only modern and advanced but most importantly eco-friendly which makes it the absolute necessity of the hour. Since the usage of diesel gensets is restricted in times of high pollution levels as per Graded Response Plan (GRP), gas based gensets would be an opportunity for housing complexes, commercial as well as industrial establishments for having unrestricted power supply. Also Read – Over 2 hours screen time daily will make your kids impulsiveXGEPL started its conversion of diesel generators primarily utilising the technology imported from Italy, and later on went ahead to develop and design its own in-house technology which is equally efficient and cost effective to the end user. The biggest USP which gives a cutting edge to the conversions of diesel generators carried out by XGEPL is that whereas the existing diesel generators in India are meeting the CPCB-II standards of emission, the diesel generators converted using the in-house technology developed by XGEPL is designed to meet the Euro-IV standards of emission without much compromise to the output power of the generator. This level of operational functioning of the converted diesel generator is not only one of its kind but also latest in the Indian market. Geared with its technical team which possesses the necessary professional expertise, its state-of-the-art technology and partnering with IGL, the company looks forward to a brighter future and huge support in conversion of diesel generators, not only helping its users to run eco-friendly generators, but to some extent help them save on high operational costs. And, in a broader perspective to help Delhi NCR to reduce its related pollution by a remarkable margin.last_img read more

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Month: August 2019 Steven Spielberg to Remake the Classic Musical West Side Story

first_imgThe 1961 film West Side Story, an adaptation of the 1957 Broadway play that was itself inspired by Romeo and Juliet, was such a sensation, winning 10 Academy Awards and going on to become a cherished classic, that it may have seemed that no one could possibly top it. Enter one Steven Spielberg.Next summer shooting begins on a new film version of West Side Story, directed by Spielberg, with a screenplay written by Tony Kushner (Angels in America, Lincoln).Steven Spielberg speaking at the 2017 San Diego Comic-Con International in San Diego. Photo by Gage Skidmore CC BY-SA 3.0The bar it needs to top is very high. The 1961 version is the biggest Oscar-winning musical of all time.The leads of the original film were Natalie Wood, at the height of her ingenue fame, as Maria and Richard Beymer as Tony, star-crossed lovers.This film will use the Arthur Laurents songs but obviously won’t have choreography by Jerome Robbins, who creating dance numbers for cast members playing the Sharks and the Jets, as well as superb individual dances by Rita Moreno, George Chakiris, and Russ Tamblyn.Russ TamblynBut there were some aspects to the film that some found unfortunate, even then and definitely today.One was obvious dubbing of songs and the other was casting actors who were not Hispanic to play Puerto Ricans.Natalie Wood was dubbed by Marni Nixon in her singing and wore makeup to appear Latina–her accent was considered a bit shaky.Photo publicity still of Natalie Wood.There have been casting calls all over America this year to fill the roles, including in Orlando.In the casting call issued recently in New York City, Spielberg’s production company made it clear that people won’t be pretending their ethnicity this time around. The call stipulates auditionees should be between 15 and 25 years old with a strong dance background and ability to sing, and also specifies: “the Sharks are Latinx, the Jets are Caucasian.”Furthermore, it specified: “Maria and Anita are Latina. Bernardo is Latino. Tony & Riff are Caucasian.”Russ Tamblyn, wearing yellow jacket as Riff, leader of the Jets, with other gang members in exuberant dance on busy street in scene from ‘West Side Story.’ (Photo by Gjon Mili/The LIFE Picture Collection/Getty Images)On October 1, 2018, it was announced that Ansel Elgort will play Tony, the American ex-gang member who falls in love with Maria, the sheltered younger sister of Bernardo, a Puerto Rican gang leader. Elgort starred in The Fault in Our Stars and Baby Driver.Elgort is not known for his singing or dancing. However, as Deadline pointed out, Elgort “attended Manhattan’s Fiorello H. LaGuardia High School, where he performed in various musicals. The performing arts-focused school, made famous in Fame, is located around Lincoln Square — the arts district built on the demolished tenement neighborhood that was, indeed, the West Side in West Side Story.”George Chakiris (center) dancing in the street in a publicity image issued for ‘West Side Story’. The musical, directed by Jerome Robbins (1918-1998) and Robert Wise (1914-2005), starred Chakiris as ‘Bernardo Nunez’. (Photo by Silver Screen Collection/Getty Images)No other lead roles have been made public. But also announced: Justin Peck, who choreographed this year’s Broadway revival of Carousel and won a Tony Award, will choreograph the film.Media reports say West Side Story has been a passion project of Spielberg’s for years.In a 2014 interview on Good Morning America, the director said, “Well, you know something, West Side Story is one of my favorite Broadway musicals and one of the greatest pieces of musical literature, my goodness, one of the greatest scores and [it has] some of the greatest lyrics ever written for a musical, so just let me put it this way: it’s on my mind.”Twentieth Century Fox owned the rights to the film.In 2014, Screen Rant reported: “Although West Side Story is considered one of film’s sacred cows – a classic with little chance of remake approval – Fox would apparently be willing to acquiesce to such a proposal if Spielberg directs.”Read another story from us: Mel Gibson to Remake Controversial 1969 Western ‘The Wild Bunch’The 1961 film was made at a time when many actors had their singing dubbed, but even so, West Side Story goes quite far. Nixon dubbed not only Wood but some of Rita Moreno’s songs. George Chakiris was the only one out of the main characters to not be dubbed and this was probably because he had no hard solo songs to sing.last_img read more

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Month: August 2019 Tony Romo isnt fat like the internet says

first_imgTwitter was extremely sympathetic towards Plus Size Romo. Just kidding, they predictably crucified him:BREAKING: Inside look at Tony Romo’s offseason nutrition plan…?? pic.twitter.com/79diI6Ccph— Fake SportsCenter (@FakeSportsCentr) July 30, 2016 Tony Romo fat and ready to go… ??? pic.twitter.com/l0dGOYu4Bb— Crying Jordan (@CryingJordan) July 30, 2016 Maybe Tony Romo thought that the best way to protect his clavicle is by burying it under 40lbs of fat? pic.twitter.com/ooxRyn0Poq— Brenden Dilley (@Hublife) July 30, 2016Well, it turns out that, upon further review, the ruling on the internet was overturned. Apparently, the pic was just a bad angle.Tony Romo is not overweight. Poor photography https://t.co/BNMUfubtOt— Jon Machota (@jonmachota) July 30, 2016 Advertisement Tony Romo is one Not Fat and two in perfect shape for training camp pic.twitter.com/Q7HIX2alwB— ✭Rachel Rizzuti✭ (@Rizzuti09) July 30, 2016 Tony romo really the new hefty lefty. I see no difference. pic.twitter.com/cfpGOlm7K2— Blackrob (@rob_aden) July 30, 2016 Just talked to @michaelirvin88 about the Tony Romo “fat” pic. Michael: “I just had lunch with him last Tuesday. Tony looks fine.”— Charles Robinson (@CharlesRobinson) July 30, 2016 Tony Romo is primed for a big comeback season. He’s finally healthy after missing most of last season with a broken collarbone. With the addition of rookie workhorse running back Ezekiel Elliott, the ‘Boys are picked by many to win the NFC East.So, all set. Ready to go, right? Not so fast.Yesterday, a picture of the franchise quarterback, posted to Twitter by Dallas Morning News writer Jon Machota, spread through Twitter like wildfire because Romo looked, well, fat.Romo pic.twitter.com/69W3fkoXYO— Jon Machota (@jonmachota) July 30, 2016 So Romo looks ready to go, and Cowboys fans can breath a labored sigh of relief. Romo and the Cowboys can now turn their sights toward feasting on the all-you-can-eat buffet of the NFC East.last_img read more

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Month: August 2019 iPhone 7 reveal Confession in 1989 abduction case Creepy clowns in Carolina

first_imgMan chases creepy clown into the woods in North Carolina with a machete.Some people don’t like clowns. But one man with a machete chased a person wearing a clown mask into the woods. https://t.co/9Vmr2Mktzg— NBCWashington (@nbcwashington) September 7, 2016 RIP #HIddleswift. Sometimes forever means three months.Taylor Swift and Tom Hiddleston split after being mocked all summer. What now? https://t.co/SVa84xPOQv— The Independent (@Independent) September 7, 2016 Confession in 1989 abduction and killing of Jacob Wetterling.Mother of Jacob Wetterling needs ‘time to heal’ after 27-year ordeal – video https://t.co/HXGs0Xfffa— The Guardian (@guardian) September 6, 2016 Advertisement Drone video of three whales under a boat. Dallas Morning News endorses Clinton. 1st Dem endorsement since 1945.We recommend @HillaryClinton for U.S. president https://t.co/eWtGJexQqz pic.twitter.com/CazHEkM2pX— Dallas Morning News (@dallasnews) September 7, 2016center_img Apple expected to reveal iPhone 7 today.What to expect from today’s #AppleEvent: https://t.co/anT5s1tXqr pic.twitter.com/oRctpMbkld— Forbes (@Forbes) September 7, 2016 Bill Cosby rape trial set for June 2017.Pennsylvania judge sets Bill Cosby’s trial for June 2017 https://t.co/HPtsbxMggz pic.twitter.com/FoEmUfNcxi— The Atlantic (@TheAtlantic) September 7, 2016 Jackie Chan breaks a cement block while holding an egg. Incompetent Congress can’t pass Zika bill.Zika outbreak: US Congress blocks Zika funding bill https://t.co/RRKmC8Wm9E— BBC Science News (@BBCScienceNews) September 7, 2016last_img read more

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Month: August 2019 Right on diva wide receivers Wrong on Matt Ryan and the Falcons

first_imgWhere Colin was WrongThe Atlanta Falcons – Colin didn’t buy the Falcons for most of the year, and picked them to go 7-9 in his NFL preseason predictions. He didn’t think Matty Ice could play at the MVP level that he has this season, and the defense had been below average.But, Ryan is playing the best football of his career with Kyle Shanahan, and head coach Dan Quinn has done a nice job shaping up the defense into respectability. The Falcons are on fire at the right time and headed for Houston. Colin was wrong.FUMBLE! Jalen Collins (@jaycar_11) forces an Aaron Ripkowski fumble and recovers it for the #Falcons. #RiseUp #GBvsATL pic.twitter.com/I2o7k2LDwg— Chat Sports (@ChatSports) January 22, 2017 Where Colin was RightThe Lakers aren’t even close to being close to contending – After the Lakers didn’t fall on their face in the first month of the season, the media and fans began saying that rookie head coach Luke Walton had the Lakers on the verge of competing for a playoff spot. Colin was quick to pour cold water on the high expectations, and pointed out that the Lakers have a bunch of “C” and “B” young players, but no “A’s.” Since their relatively hot start, the Lakers have been a disaster.L.A. is 16-32, and last night they lost by 40 to the Mavericks. Brandon Ingram looks like he might have all-star potential, but he’s three years away from being physically ready to compete. The Lakers aren’t close. They’re not even close to being close. Colin was right.Justin Anderson (@JusAnderson1) throws down the tomahawk to cap the Mavs’ 122-73 win over the Lakers! #NBA #MFFL pic.twitter.com/D4Tqx6Xp0t— Chat Sports (@ChatSports) January 22, 2017 Where Colin was WrongToo hard on the Patriot defense – Colin was skeptical of the Patriots defense, despite their top statistical ranking, because they hadn’t faced many elite quarterbacks and traded away key personnel like Jamie Collins and Chandler Jones. After yesterday’s domination of the Steelers, Colin has come to the several conclusions: 1.) They are excellent against the run; 2.)  Their corners are underrated; 3.) They don’t miss tackles. Belichick’s ability to game plan to eliminate the opposing team’s best player doesn’t hurt either. Colin was wrong.Adding insult to injury, Ben Roethlisberger gets picked off by @EricRowe32! #Patriots #PITvsNE pic.twitter.com/EIxrsIYuxw— Chat Sports (@ChatSports) January 23, 2017 Where Colin was WrongMatt Ryan is a Super Bowl QB and an MVP candidate – Before the season, Colin said Ryan was the fourth best quarterback in the NFC South. He may have called him “Andy Dalton in a warmer climate.” Colin was wrong. Over the previous three seasons, he only had 75 touchdowns passes, against 47 interceptions, and had looked average. In his second year with offensive coordinator Kyle Shanahan, Ryan has taken his game way past the ceiling Colin thought he had.  The Falcons are rolling, and Ryan is an MVP candidate. Colin was wrong.Touchdown #Falcons! Matt Ryan flips one to Mohamed Sanu to go up 7-0. #RiseUp #GBvsATL pic.twitter.com/w2sQqR7l2l— Chat Sports (@ChatSports) January 22, 2017 Where Colin was RightRyan Grigson had to go in Indy – Jim Irsay finally canned Ryan Grigson after another disappointing season, and a series of unspectacular drafts. Grigson hasn’t drafted a Pro Bowl defensive player in 5 years, and has failed to put together an offensive line that can keep Andrew Luck upright.Grigson couldn’t make Indy competitive in the weakest division in football with the best quarterback in the division. Too many Phillip Dorsett’s and not enough Ryan Kelly’s. Grigson had to go. Colin was right.How do we know the @Colts weren’t going to go for a fake punt? #INDvsHOU pic.twitter.com/HvZqVsftWv— Jeff (@jrs362) October 17, 2016 Every Monday in The Herd, it’s time for Colin to count the wins and the losses from another week of predictions in Where Colin was right, where Colin was wrong.Colin nailed both the NFC and AFC Championship games against the spread, and feels like the Pittsburgh collapse following the Antonio Brown Facebook Live fiasco proves that diva wide receivers are overrated. Even though he picked the Falcons to beat the Packers this weekend, he was wrong on Atlanta and Matt Ryan this year.Here’s all the right and the wrong from an NFL Conference Championship weekend: Where Colin was RightDiva wide receivers are overrated – Pittsburgh got housed in the wake of the week-long Antonio Brown Facebook Live locker room media feeding frenzy. Colin thinks the negative impact of the story was predictable, and it’s the latest incident to prove his theory that diva wide receivers are an overvalued commodity in the NFL.It’s a quarterback league, and wide receivers are hood ornaments. The best receiver on the field in the AFC Championship Game wasn’t  Brown, it was Chris Hogan out of Monmouth. Why was he great? Brady. Colin was right. Advertisement Where Colin was RightBlazin’ 5 was 2-0 – Colin rarely takes favorites when he bets the NFL, but he went with both home favorites in the conference championship games. Both easily covered. Aaron Rodgers’ magic ran out in Atlanta, allowing the Falcons to cover the 5, and Tom Brady and the Pats shut down the Steelers to cover the 6 in Foxboro. An undefeated weekend is an undefeated weekend. Colin was right.last_img read more

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Month: August 2019 Herd Interview LaVar Ball thinks hes the best parent in the world

first_img Advertisement Lonzo said he’d be happy to play anywhere, but he would love to stay home and play for the Lakers. LaVar confirmed the Lakers are their number one choice.“I’ll play for any team, but obviously, if I got to stay home it’d be a blessing.” – Lonzo Ball“I’ll play for any team, but obviously, if I got to stay home it’d be a blessing.” — Lonzo Ball (@ZO2_) pic.twitter.com/poLF9NOcch— Herd w/Colin Cowherd (@TheHerd) March 29, 2017 And as for LaVar, well, don’t be expecting him to tone down anything in the near future. If anything, it sounds like the decibel level will only ratchet up as the NBA Draft approaches. You’ve been warned.He dismissed the recent criticism that he undermined his sons’ former high school coach as ridiculous. He said the coach would have never had the job in the first place if it wasn’t for him.He also said that in terms of parenting, no one does it better.“To me, I’m the best parent in the world.”Watch Colin’s full interview with the Balls:center_img In the course of a college basketball season, LaVar Ball has gone from a complete unknown to one of the most polarizing figures in sports. Critics call him a helicopter parent’s parent, and he has increasingly taken heat for taking the spotlight away from his son, UCLA freshman phenom and potential #1 NBA Draft pick, Lonzo.Lonzo and LaVar were in-studio in The Herd today and no topic was off limits.Lonzo said his dad’s frequent, outrageous comments aren’t a distraction, and he stands by his statement that he should be the #1 pick over Washington freshman Markelle Fultz. He also doesn’t think his dad’s antics will affect his draft stock.Lonzo Ball stands by his statement he’s better than Markelle Fultz (@MarkelleF): “I don’t regret saying it.” pic.twitter.com/DHMz72sB8f— Herd w/Colin Cowherd (@TheHerd) March 29, 2017last_img read more

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