Nintendo Plans Summer 09 Launch of Wii MotionPlus Wii Sports Resort wVideo

first_img Wii video game carries doctor’s warning Nintendo will launch the Wii MotionPlus accessory on June 8 in the United States and set the stage for the July 26 introduction of Nintendo’s summer sizzler, Wii Sports Resort game The Wii MotionPlus will retail for less than $20 and transform Wii Sports games to a whole new level according to a Nintendo spokesperson. A packaged price for the Wii MotionPlus and Wii Sports Resort will sell for less than $50. The Wii MotionPlus accessory is designed to enhance game play for specially designed games and builds on the unique wireless function of the motion-sensing Wii Remote. The ultra-sensitive sensors of the Wii MotionPlus will track the player’s movements with greater precision and accuracy creating a life-like immersion in game play. The newly created Wii Sports Resort game when combined with the Wii MotionPlus displays deep vibrant color images on the TV screen which tracks even the slightest twist of the wrist or body movement. Wii Sports Resort offers a beach theme background for a wide range of game activities which includes a water scooter exercise, Frisbee throw and a swashbuckling sword dueling activity. The game activity is geared toward maximum participation by players and the Wii MotionPlus accessory promises to add pin-point accuracy to the game. Wii Sports Resort TrailerAccording to Cammie Dunaway, Nintendo of America’s Executive V.P. Sales & Marketing, “Developers around the world are busy working on new ways to incorporate Wii MotionPlus controls into inventive experiences for consumers. According to some veteran Nintendo Sports players, the new graphics and ultra-sensitive sensors of the Wii MotionPlus and Sports Resort game may clear up some disappointing vague graphics display. Veteran players are looking forward to more precision in body motion and wrist movement tracking and more realistic color display as advertised by Nintendo. Preliminary reviews look promising, but the true tests and results will come in late Summer 09 when the veteran consumers have their say.© 2009 PhysOrg.com Explore furthercenter_img Wii MotionPlus Citation: Nintendo Plans Summer 09 Launch of Wii MotionPlus, Wii Sports Resort (w/Video) (2009, April 15) retrieved 18 August 2019 from https://phys.org/news/2009-04-nintendo-summer-wii-motionplus-sports.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

Apple patents an inexpensive 3D projection system

first_img Explore further (PhysOrg.com) — The U.S. patent office has granted Apple a patent for a 3-D projection system that doesn’t require the use of bulky 3-D glasses. This gives the viewer more freedom of movement and viewing angles. Apple is not the only company that’s involved in auto-stereoscopic R&D; however Apple’s patent has picked apart the limitations of three categories of auto-stereoscopic system:1. Ghost like or transparent images in volumetric displays. 2. The viewer required to remain stationary using the parallax barrier method.3. The use of holographic images requires greater computer power and larger bandwidth, keeping the commercial cost higher that is required for other auto-stereoscopic systems. Apple patent application for 3D viewing glasses The name Apple has given to this simple 3-D system is called, “Three Dimensional Display System.” This auto-stereoscopic system works by projecting each pixel onto a reflective, textured surface, which is then bounced into a viewer’s left and right eye separately; this produces the 3D or stereoscopic effect. By sensing the locations of both eyes of each viewer, multiple viewers could observe the 3-D effect from a variety of angles. Each pixel is aimed at a curved surface, where it reflects onto the correct eye. Citation: Apple patents an inexpensive 3-D projection system (2010, December 3) retrieved 18 August 2019 from https://phys.org/news/2010-12-apple-patents-inexpensive-d.html © 2010 PhysOrg.com Apple’s auto-stereoscopic system tracks where the viewer is located and tailors its display to your position. Apple’s main objective is to develop a 3-D glass-free auto-stereoscopic system that would give viewers the freedom to move around without being tied down to bulky 3-D glasses. Apple’s patent also promises to keep costs low and simplifying the system while maintaining performance. 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

Scientists show how to erase information without using energy

first_img In the study, physicists Joan Vaccaro from Griffith University in Queensland, Australia, and Stephen Barnett from the University of Strathclyde in Glasgow, UK, have quantitatively described how information can be erased without any energy, and they also explain why the result is not as contentious as it first appears. Their paper is published in a recent issue of the Proceedings of the Royal Society A.Traditionally, the process of erasing information requires a cost that is calculated in terms of energy – more specifically, heat dissipation. In 1961, Rolf Landauer argued that there was a minimum amount of energy required to erase one bit of information, i.e. to put a bit in the logical zero state. The energy required is positively related to the temperature of the system’s thermal reservoir, and can be thought of as the system’s thermodynamic entropy. As such, this entropy is considered to be a fundamental cost of erasing a bit of information.However, Vaccaro and Barnett have shown that an energy cost can be fully avoided by using a reservoir based on something other than energy, such as spin angular momentum. Subatomic particles have spin angular momentum, a quantity that, like energy, must be conserved. Basically, instead of heat being exchanged between a qubit and thermal reservoir, discrete quanta of angular momentum are exchanged between a qubit and spin reservoir. The scientists described how repeated logic operations between the qubit’s spin and a secondary spin in the zero state eventually result in both spins reaching the logical zero state. Most importantly, the scientists showed that the cost of erasing the qubit’s memory is given in terms of the quantity defining the logic states, which in this case is spin angular momentum and not energy.The scientists explained that experimentally realizing this scheme would be very difficult. Nevertheless, their results show that physical laws do not forbid information erasure with a zero energy cost, which is contrary to previous studies. The researchers noted that, in practice, it will be especially difficult to ensure the system’s energy degeneracy (that different spin states of the qubit and reservoir have the exact same energy level). But even if imperfect conditions cause some energy loss, there is no fundamental reason to assume that the cost will be as large as that predicted by Landauer’s formula. Explore further 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. More information: Joan A. Vaccaro and Stephen M. Barnett. “Information erasure without an energy cost.” Proceedings of the Royal Society A. DOI:10.1098/rspa.2010.0577 The possibility of erasing information without using energy has implications for a variety of areas. One example is the paradox of Maxwell’s demon, which appears to offer a way of violating the second law of thermodynamics. By opening and closing a door to separate hot and cold molecules, the demon supposedly extracts work from the reservoir, converting all heat into useful mechanical energy. Bennett’s resolution of the paradox in 1982 argues that the demon’s memory has to be erased to complete the cycle, and the cost of erasure is at least as much as the liberated energy. However, Vaccaro and Barnett’s results suggest that the demon’s memory can be erased at no energy cost by using a different kind of reservoir, where the cost would be in terms of spin angular momentum. In this scheme, the demon can extract all the energy from a heat reservoir as useful energy at a cost of another resource.As the scientists explained, this result doesn’t contradict historical statements of the second law of thermodynamics, which are exclusively within the context of heat and thermal reservoirs and do not allow for a broader class of reservoirs. Moreover, even though the example with Maxwell’s demon suggests that mechanical work can be extracted at zero energy cost, this extraction is associated with an increase in the information-theoretic entropy of the overall system.“The maximization of entropy subject to a constraint need apply not only to heat reservoirs and the conservation of energy,” Vaccaro explained to PhysOrg.com.The results could also apply to hypothetical Carnot heat engines, which operate at maximum efficiency. If these engines use angular momentum reservoirs instead of thermal reservoirs, they could generate angular momentum effort instead of mechanical work. As for demonstrating the concept of erasing information at zero energy cost, the scientists said that it would take more research and time.“We are currently looking at an idea to perform information erasure in atomic and optical systems, but it needs much more development to see if it would actually work in practice,” Vaccaro said.She added that the result is of fundamental significance, and it’s not likely to have practical applications for memory devices.“We don’t see this as having a direct impact in terms of practical applications, because the current energy cost of information erasure is nowhere near Landauer’s theoretical bound,” she said. “It’s more a case of what it says about fundamental concepts. For example, Landauer said that information is physical because it takes energy to erase it. We are saying that the reason it is physical has a broader context than that.” 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.center_img Citation: Scientists show how to erase information without using energy (2011, January 25) retrieved 18 August 2019 from https://phys.org/news/2011-01-scientists-erase-energy.html Could Maxwell’s Demon Exist in Nanoscale Systems? Maxwell’s demon can extract work from a single heat reservoir at a cost of spin angular momentum. In step (a), the demon has no memory and the gas in the heat reservoir is in thermal equilibrium. In step (b), the demon divides the reservoir in two, trapping the fastest moving molecules on the right side, and uses a heat engine operating between the two partitions to extract work. In step (c), the demon’s memory is erased using a spin reservoir and the two partitions are allowed to return to equilibrium. Image credit: Joan A. Vaccaro, et al. Fig. 1. ©2011 Royal Society. (PhysOrg.com) — Until now, scientists have thought that the process of erasing information requires energy. But a new study shows that, theoretically, information can be erased without using any energy at all. Instead, the cost of erasure can be paid in terms of another conserved quantity, such as spin angular momentum.last_img read more

dAlH2Orean An RC car that runs on aluminum soda can tabs w

first_img(PhysOrg.com) — Aleix Lovet and Xavier Saluena, two researchers at the Polytechnic Institute of Catalonia, have made the world first RC car that runs entirely on soda cans. Well, to be more accurate, it runs on a combination of recycled aluminum soda can tabs and sodium hydroxide. This creates a vehicle that is completely carbon emission free and creates no planet harming waste. Citation: dAlH2Orean: An RC car that runs on aluminum soda can tabs (w/ video) (2011, April 19) retrieved 18 August 2019 from https://phys.org/news/2011-04-dalh2orean-rc-car-aluminum-soda.html Cars that Run on Cow Power? The car, which have been dubbed the DAlH2Orean remote-controlled car, is a worlds first. The car uses the hydrogen power generated by a chemical reaction, when the aluminum tabs are brought together with a mixed solution of sodium hydroxide and water. After being run through a few filters, such as a silica gel to remove the moisture, and a vinegar filter to remove any lingering hydroxides, the fuel is complete. This generates hydrogen, which in turn can be used to power a hydrogen fuel cell and run the small car. Explore further 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: www.dalh2orean.com/dAlH2Orean/ … ress_Conference.html The car can run at a top speed of about 20 miles per hour. Its top range is roughly 40 minutes, and then it will need a refill. While this is, at this stage of research, an interesting curiosity, this research has the potential to grow into a very real world application. The research team behind the zero-emissions remote controlled car hopes to one day transition the technology to cars in the real world. The cars, which the team sees as being microcars, would also be zero-emissions and could take a small number of people where they need to go. Hopefully, they will not be RC. © 2010 PhysOrg.comlast_img read more

Fast photon control brings quantum photonic technologies closer

first_img(PhysOrg.com) — Using photons instead of electrons to transmit information could lead to faster and more secure ways to communicate, among other advantages. Now a team of physicists has taken another step toward realizing quantum photonic technologies by demonstrating how to quickly manipulate single photons at the same wavelengths used in existing optical telecommunications networks. The ability to control a photon’s path and polarization in the time of a few nanoseconds could allow photonic circuits to be integrated with existing optical telecom networks, leading to significant improvements. Copyright 2012 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. Explore further Researchers demonstrate electo-optic modulation of single photons from a quantum dot 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.center_img More information: Damien Bonneau, et al. “Fast Path and Polarization Manipulation of Telecom Wavelength Single Photons in Lithium Niobate Waveguide Devices.” PRL 108, 053601 (2012). DOI: 10.1103/PhysRevLett.108.053601 Citation: Fast photon control brings quantum photonic technologies closer (2012, February 13) retrieved 18 August 2019 from https://phys.org/news/2012-02-fast-photon-quantum-photonic-technologies.html The physicists, from the University of Bristol in Bristol, UK, Heriot-Watt University in Edinburgh, UK, and the Kavli Institute of Nanoscience in Delft, The Netherlands, have published their study on the fast control of the path and polarization of single photons in a recent issue of Physical Review Letters.The physicists worked on a quantum photonic device consisting of circuits through which single photons move, where the circuits can be reconfigured to change the path and polarization of a photon. One of the challenges for these quantum photonics circuits is to manipulate single-photon and multi-photon states at a fast rate.To address this challenge, the researchers used lithium niobate waveguides, which have proven to be capable of fast manipulation in current telecom modulators. By taking advantage of the electro-optic effect, the researchers demonstrated that applying a voltage to electrodes near the waveguide can rapidly manipulate quantum states of light made of one or two photons. They demonstrated this fast path and polarization control of photon pairs generated at the 1550-nm wavelength, which is used in telecom networks.“In this experiment, we demonstrate switching between two configurations of the circuit, each one leading to a different quantum state,” lead author Damien Bonneau of the University of Bristol told PhysOrg.com. “The reconfiguration rate was set at 4 MHz while previous experiments were performed with circuits reconfigured every several seconds. Switches using essentially the same technology are used every day in telecommunication networks to switch bits of information encoded in light pulses at 40 GHz. Such switches could in principle be used at a single-photon level too.”As Bonneau explained, the lithium niobate waveguide’s ability to manipulate quantum states of light provides a distinctly different approach compared with previous methods that worked much slower.“Until now, on-chip manipulation of quantum states of light had relied on heaters acting as slow phase shifters,” Bonneau said. “We demonstrate here that, by using one of the technologies on which the internet is built, one can not only switch light packets for routing classical information, but also rapidly engineer and manipulate quantum states of light.”As the scientists explained, the ability to rapidly control the polarization and path of single photons on a single platform will be useful for both fundamental quantum science and quantum technologies. They plan to expand their research to work toward several of these applications in the future.“Lithium niobate, the material which these devices are made of, can be used to probabilistically generate photons as well,” Bonneau said. “Superconducting single photon detectors could also be integrated onto such a chip. A technological platform combining probabilistic sources of single photons, circuits and detectors can open the way to several applications including reliable single-photon sources (by multiplexing several sources), quantum relays (required for long distance quantum communication), or quantum key distribution (which is required for quantum cryptography).”last_img read more

Comcast may raise Mbps to grab takers in FiOS markets

first_img(Phys.org) — In the Mbps competitive race, Comcast is reportedly set to five-up Verizon with an Mbps Internet offer that delivers 305 Mbps against Verizon’s residential broadband top-shelf 300 Mbps, says Broadband Reports. The two would in turn be in closer competition since Verizon’s introduction of a Quantum FiOS offer of 300 Mbps downstream, and 65 Mbps upstream tier for $205 a month, Verizon made the announcement of raising its fastest offering from 150/35 Mbps to 300/65 Mbps for FiOS subscribers, saying the move was all because of what customers wanted. Now Comcast is said to be preparing to offer 305 mbps downstream in FiOS markets, and before the end of the year. Explore further “It will be interesting to see just how close to 65 Mbps Comcast can get on the upstream side of the bar,” commented Karl Bode in DSLReports.com. Comcast’s upstream speed for the new tier is as yet unknown. Comcast conducted some upstream testing last year that reached speeds of 75 to 100 Mbps.Roots of the rumor can be traced to all Comcast employees treated to a live event stream discussing future Xfinity service plans recently. Amidst talk about the Olympics and expansions in Spanish-language programming, Comcast’s President, Neil Smit, made some references to this faster tier, to be deployed in Verizon FiOS territories soon.Comcast’s broadband Internet speed weapon in markets shared by rival service Verizon FiOS would amount to only 5 Mbps more than Verizon’s fastest FiOS offering and some market watchers take that as an indication that the battle, at only a difference of 5 Mbps more, may be more of a dance than a war. The numbers, they say, may just be a measure to get the government to stop worrying about choked-off competition and high fees to consumers, if Verizon and Comcast were to look to a future of cross-selling each others’ services. Earlier this month, anonymous sources told Reuters that the FCC is likely to approve Verizon’s $3.8 billion spectrum and co-marketing arrangement with the cable industry, but the Justice Department is concerned about such co-marketing arrangements in Verizon’s bid to buy wireless spectrum from cable operators. Regulators might look at the Comcast introduction of 305 Mbps as a reassuring sign that at least some type of competition is in view. Cablevision has fastest Internet speeds for cable Citation: Comcast may raise Mbps to grab takers in FiOS markets (2012, July 21) retrieved 18 August 2019 from https://phys.org/news/2012-07-comcast-mbps-takers-fios.htmlcenter_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: www.dslreports.com/shownews/Ex … 305-Mbps-Tier-120450 © 2012 Phys.orglast_img read more

Physicists propose a way to make atomic clocks more accurate

first_img(Phys.org)—Physicists Andrei Derevianko of the University of Nevada and Victor Flambaum and Vladimir Dzuba of the University of New South Wales have proposed in a paper published in Physical Review Letters a way to improve on the accuracy of atomic clocks. They suggest stripping away electrons from ions to reduce the negative effects of stray fields that reduce the performance of current atomic clocks. Journal information: Physical Review Letters Explore further Proposed nuclear clock may keep time with the Universe More information: Highly Charged Ions as a Basis of Optical Atomic Clockwork of Exceptional Accuracy, Phys. Rev. Lett. 109, 180801 (2012) DOI: 10.1103/PhysRevLett.109.180801AbstractWe propose a novel class of atomic clocks based on highly charged ions. We consider highly forbidden laser-accessible transitions within the 4f12 ground-state configurations of highly charged ions. Our evaluation of systematic effects demonstrates that these transitions may be used for building exceptionally accurate atomic clocks which may compete in accuracy with recently proposed nuclear clocks.via PhysicsWorld Researchers continue to look for ways to increase the accuracy of atomic clocks because higher accuracy would allow for finer measurements of very small changes in the values of the physical constants that underlie some of the most basic principles of physics. One example is the fine structure constant – a more accurate measurement of its changes might lead the way to the development of a unified theory.Recent research has focused on switching to a nuclear clock as theories have indicated they might be more accurate than atomic clocks. Practical limitations, such as the high degree of difficulty in calculating frequency transitions and the danger of working with radioactive materials have prevented the development of such clocks however, which is what led this new effort to see if the model for an atomic clock could be improved.Atomic clocks are based on using atomic transitions as a means of defining a time standard and are accurate to one part in 1017. The goal is to improve that to 1019. To achieve such accuracy, the researchers propose stripping away some of the electrons of a particular ion to cause the remaining electrons to bind tighter to the nucleus. Doing so, they reason would reduce the stray fields that can creep into the electromagnetic trap used to measure the electronic transition, which skew the results. Based on that assumption, they’ve calculated that the observation of the electron transmission of a bismuth-209 ion would produce the desired accuracy.The researchers acknowledge that building such a clock would be difficult, but suggest it should be possible and argue that it would be much more practical than trying to build and work with a nuclear clock. They conclude by suggesting that the time has come to put more effort into improving the atomic clock and less into nuclear clock research. © 2012 Phys.org Citation: Physicists propose a way to make atomic clocks more accurate (2012, November 7) retrieved 18 August 2019 from https://phys.org/news/2012-11-physicists-atomic-clocks-accurate.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

Researchers find signs of western Eurasian genes in southern African Khoisan tribes

first_img Scientists believe humans evolved from ancestral primates in Africa several hundred thousand years ago, but it wasn’t until approximately 65,000 years ago that they made their way out of Africa and into the Middle East and eventually the rest of the world. Until recently, that migration has been viewed by most scientists as a one-way trip. Gene studies over the past several years has turned that thinking around, however, as its been found that many people in several parts of Africa have European or Asian gene segments in their DNA. In this latest study, the researchers have found evidence of Eurasian genes in tribespeople who were thought to have a purely African ancestry.The Khoisan tribespeople of today still live much as their ancestors did—they are hunter-gathers who are also pastoralists—they are most familiar to westerners as the people who speak with distinctive clicking noises. Until now, they were believed to have the purest African gene pool due to their thousands of years of isolationist practices. The team acquired DNA samples from 32 people living in Khoisan tribes in southern Africa—an analysis revealed Eurasian gene segments in all of them. But that wasn’t the end of the story. To understand how the gene fragments got into the Khoisan tribespeople, the researchers turned to archeological and linguistic evidence to build a possible time-line of events. In so doing, they’ve found what they believe to have been a migration back into Africa by people of the Middle East (ancestors of the people that migrated to Europe and Asia) approximately 3000 years ago. Those people made their way to various parts of the continent, including a part of eastern Africa from which the Khoisan tribespeople had migrated south approximately 900 and 1800 years ago.The researchers found something else—the Khoisan tribespeople also had snippets of Neanderthal DNA in their genes as well—courtesy of their Eurasian heritage. 33-year-old San tribesman from Namibia. Image: Wikipedia. Genetic admixture in southern Africa: Ancient Khoisan lineages survive in contemporary Bantu groups (Phys.org) —A team of researchers with representatives from the U.S., Germany and France has found evidence of western Eurasian genes in Khoisan tribes living in southern Africa. This suggests, the researchers conclude in a paper they’ve had published in Proceedings of the National Academy of Sciences, that a migration from the Middle East back to Africa occurred approximately 3000 years ago. Journal information: Proceedings of the National Academy of Sciences More information: Ancient west Eurasian ancestry in southern and eastern Africa, Joseph K. Pickrell, PNAS, DOI: 10.1073/pnas.1313787111AbstractThe history of southern Africa involved interactions between indigenous hunter–gatherers and a range of populations that moved into the region. Here we use genome-wide genetic data to show that there are at least two admixture events in the history of Khoisan populations (southern African hunter–gatherers and pastoralists who speak non-Bantu languages with click consonants). One involved populations related to Niger–Congo-speaking African populations, and the other introduced ancestry most closely related to west Eurasian (European or Middle Eastern) populations. We date this latter admixture event to ∼900–1,800 y ago and show that it had the largest demographic impact in Khoisan populations that speak Khoe–Kwadi languages. A similar signal of west Eurasian ancestry is present throughout eastern Africa. In particular, we also find evidence for two admixture events in the history of Kenyan, Tanzanian, and Ethiopian populations, the earlier of which involved populations related to west Eurasians and which we date to ∼2,700–3,300 y ago. We reconstruct the allele frequencies of the putative west Eurasian population in eastern Africa and show that this population is a good proxy for the west Eurasian ancestry in southern Africa. The most parsimonious explanation for these findings is that west Eurasian ancestry entered southern Africa indirectly through eastern Africa.center_img Explore further Citation: Researchers find signs of western Eurasian genes in southern African Khoisan tribes (2014, February 4) retrieved 18 August 2019 from https://phys.org/news/2014-02-western-eurasian-genes-southern-african.html © 2014 Phys.org 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

Supraballs offer a new way to color materials

first_img Play A video shows supraball painted flowers do not change color when the sample is rotated at different angles. Credit: Xiao et al., Sci. Adv. 2017;3: e1701151 Prior research has shown that there are two basic ways to produce color in a material. One is to use materials that have molecules capable of absorbing light, the other is to use materials that cause light to scatter in desired ways using nanostructures. Material scientists have found that using structures to create color has many advantages over those that require absorption, but making them that way has proven to be challenging. In this new effort, the researchers report that they have developed a technique that overcomes those challenges, allowing for the production of colored materials in a way that is fast, simple and scalable.The new technique was inspired by duck and turkey feathers. The team created tiny balls of melanin and then coated them with silica to create structures similar to those found in the bird feathers. Prior research has shown that the spacing between balls of melanin produces different colors. The clear silica coating serves that purpose by forcing the balls farther apart or closer together. The distance is determined by the thickness of the coating—a thick one forces the balls farther apart, while the opposite brings them closer together. Interestingly, observed under a microscope, they are all black. It is only when they are seen from a normal distance that the color emerges. The team notes that changing the size of the balls has no impact on the color produced.The team calls the result of their effort “supraballs.” After creating them and seeing how they worked, they studied them further to understand what was happening. They found that the cores were highly refractive while the shells had a low refractive index, which served to increase reflectance, resulting in colors that were brighter. They note that supraballs could be added directly to paint or plastic base materials to create desired colors and suggest they might also be useful for inks and cosmetic products. Citation: Supraballs offer a new way to color materials (2017, September 18) retrieved 18 August 2019 from https://phys.org/news/2017-09-supraballs-materials.html Play Journal information: Science Advances A way to laser print colors that will not fade using tiny columns Each column represents supraballs made of different sizes of core-shell synthetic melanin nanoparticles. (A) Scanning electron microscope (SEM) images of whole supraball morphologies. (B) High resolution SEM images of top surfaces of supraballs. (C) Cross-sectional transmission electron microscope images of the inner structure of supraballs. Scale bars, (A) 2 micrometers, (B) 500 nanometers and (C) 500 nanometers. Credit: Xiao et al., Sci. Adv. 2017;3: e1701151 An international team of researchers has created a new way to color manufactured materials. In their paper published in the journal Science Advances, the group describes how they created the new coloring technique and why they believe it provides benefits over conventional methods. More information: Ming Xiao et al. Bioinspired bright noniridescent photonic melanin supraballs, Science Advances (2017). DOI: 10.1126/sciadv.1701151AbstractStructural colors enable the creation of a spectrum of nonfading colors without pigments, potentially replacing toxic metal oxides and conjugated organic pigments. However, significant challenges remain to achieve the contrast needed for a complete gamut of colors and a scalable process for industrial application. We demonstrate a feasible solution for producing structural colors inspired by bird feathers. We have designed core-shell nanoparticles using high–refractive index (RI) (~1.74) melanin cores and low-RI (~1.45) silica shells. The design of these nanoparticles was guided by finite-difference time-domain simulations. These nanoparticles were self-assembled using a one-pot reverse emulsion process, which resulted in bright and noniridescent supraballs. With the combination of only two ingredients, synthetic melanin and silica, we can generate a full spectrum of colors. These supraballs could be directly added to paints, plastics, and coatings and also used as ultraviolet-resistant inks or cosmetics. PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen Explore further 2017 Phys.org A photo of a rainbow-like flowers, painted with supraball inks made of five different sizes of core-shell synthetic melanin nanoparticles. Credit: Ming Xiao, University of Akron PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen 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

21 more die of swine flu toll reaches 833

first_imgSwine flu claimed the lives of 21 more people as the toll reached 833 across the country while the number of persons affected by H1N1 virus breached the 14,000 mark.According to Health Ministry figures, the total number of persons who have died of the disease till February 22 is 833 while a total of 14,484 persons has been affected by it across the nation.Health Ministry data on Sunday had showed that 812 people had died due to the disease while 13,688 people had been affected with the H1N1 virus. The maximum toll was reported from Rajasthan with 214 deaths till February 22 out of 4,549 people who were affected by it while 207 people have perished in Gujarat where the number of affected persons stood at 3,107. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJIIn a stormy start to the Gujarat Assembly budget session on Monday, State Governor O P Kohli had to cut short his address to the House owing to continuous protest and slogan shouting by Opposition Congress members demanding discussion on the swine flu outbreak. Data available with the Health Ministry showed that in Madhya Pradesh 112 people have died due to the disease while 99 have perished in Maharashtra where 1,013 people were affected. In Telangana, 51 people have died while the number of affected persons was 1,316. Health Ministry data showed that eight persons have died in Delhi while 2,241 people are affected by the disease.last_img read more

Govt aiming to eradicate child labour says Moloy Ghatak

first_imgKolkata: State Labour minister Moloy Ghatak on Tuesday said the state government is gradually moving towards eradicating child labour in the state.”Chief Minister Mamata Banerjee, right from the day she took guard of the state in 2011, has brought in a number of people friendly schemes that cover a child’s right from his/her birth to death. Almost the entire population of the state is reaping benefits of these schemes initiated by the Chief Minister in some way or the other. Education is free in the state schools. Also Read – Heavy rain hits traffic, flightsBooks, exercise books, dress and even shoes are being provided at free of cost.The number of drop outs have come down drastically. This has contributed in bringing down child labour and the way we are progressing, it will come down to zero in the next few years,” Ghatak said at a programme to mark the occasion of World ChildLabour Day.It may be mentioned that the Centre has acknowledged the role played by Bengal in eradicating the instances of child labour. A report presented by the concerned Union Minister in Parliament on March 27 states that over the last three years there has been an appreciative decrease in crimes related to child labour only in Bengal. The State-wise list of the number of crimes concerned with child labour from 2014 to 2016 was presented, according to which, during this period, the law has been moved against only 42 people Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedin Bengal. Significantly, during the above-mentioned period, there have been 1,131 operations in the state to rescue children illegally engaged in labour. “The emphasis of the government has been to render all possible assistance to those who hail from the economically weaker section. The Samajik Suraksha Yojana (SSY) scheme is a major stride in this matter,” the minister said.The department has set a target to include 1.2 crore beneficiaries within the schemes, aiming to provide income security and various social benefits to the people engaged in unorganised sectors.last_img read more

SC wonders how transparency cant be taken beyond a point

first_imgDuring the hearing on the new law to replace the collegium system of appointments, a bench of the court headed by Justice J S Khehar noted that transparency could be there only to a “certain degree”.The bench put a query as to how it can be proved even when it is known that a person under consideration for appointment for judgeship is casteist, communal, dishonest and misleads. “How are you going to prove that a person is casteist? He is a communal? He misleads or is dishonest,” asked the constitution bench. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJI“Can you put an opinion in public when it opens up a candidate (for judgeship) to public ridicule? Hundreds of litigations will then start. We can be transparent to certain degree but not to the world at large” the bench said.“The wisdom of people who watch over needs to be preserved. Transparency is good but you should give views above it. It may be transparent to a degree but not at large. We want to devise something that wrong is not perpetuated.,” the bench observed. Also Read – Health remains key challenge in India’s development: KovindThe bench intervened when senior lawyer Ram Jethmalani said the collegium system needs to be “opened up” and more transparency must be brought in appointments. Resuming his arguments he asked the court step in to stop the NDA government from “tinkering” with the independence of judiciary with new law on appointment of judges which takes the country to the days of “notorious emergency”.“India would do what Dr Ambedkar, Nehru and other galaxy of patriots and constitutional experts wanted to be done in India. It is a matter of shame that what is sought to be done is what the late Indira Gandhi did with our judiciary during the notorious emergency by her diabolical advisors,” he submitted before the five-judge Constitution Bench. He attacked the National Judicial Appointments Commission (NJAC) Act and asked the apex court to assert itself and not leave it to executive to tinker the independence of judiciary.“I feel insulted that I have to deal with this kind of junk. I request the bench to assert itself and not leave the issue of appointment of judges to the executive,” Jethmalani told the bench, also comprising Justices J Chelameswar, M B Lokur, Kurian Joseph and A K Goel. “The Attorney General seems to tell us that in 15 countries the Executive is the final authority. This is what he wants India to do. This is disgraceful. I suggest that this court should express its anger and contempt for such a submission,” Jethmalani submitted.last_img read more

Soon 20 more CNG buses in South Bengal districts

first_imgKolkata: Soon, twenty more CNG buses will be introduced in South Bengal districts to reduce pollution. The state Environment department will be funding the project.The state Environment minister, Suvendu Adhikari, who is also the state’s Transport minister, said steps have been taken to introduce more number of CNG buses. Around 20 more such buses will be operating in different parts of the South Bengal districts.The CNG buses are environment friendly and help to curb the level of pollution in the state. It may be mentioned that the state Transport department has a plan to operate CNG buses all over the state and will be done in phases. Each bus costs around Rs 1 crore. But the maintenance cost of the CNG buses is considerably much less than those of the diesel run ones. At the same time, the cost of fuel will be much cheaper as gas costs lesser than diesel. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe state government had earlier introduced CNG buses in Asansol and Durgapur. At present, 30 CNG buses ply in Asansol and Durgapur. The project has become immensely successful and now the state government has taken steps to introduce more number of CNG buses.Several steps were taken in the past seven years to increase the number of buses so that people do not have to wait for a long time to get a bus to reach their destinations. Initiatives for introducing environment friendly vehicles were also taken. The state Transport department is giving all support for the promotion of electric vehicles and decision has been taken to allow owners of the electric vehicles to recharge their vehicles at the charging points, where the electric buses of the West Bengal Transport Corporationwill be recharged.They will be charged for the electricity cost under the “no gain no loss” policy as it has been done for promotion of e-vehicles. The state government will also introduce 80 electric buses by August.last_img read more

Govt looks at taxes dividends to meet deficit target

first_imgGovernment is likely to step up efforts to mop up additional resources by hiking duties and seeking higher dividends from PSUs to make up for the anticipated shortfall in disinvestment and direct tax proceeds in its bid to meet the fiscal deficit target.The Finance Ministry had last week raised excise duty on petrol by Rs 1.60 per litre and the same on diesel by 40 paise, which is expected to fetch the exchequer an additional revenue of about Rs 3,200 crore during the rest of the fiscal. This will help the government in partly meeting the shortfall in disinvestment and direct tax realisation. Also Read – Punjab & Sind Bank cuts MCLR by up to 20 basis pointsDue to volatile market conditions, the disinvestment department could garner Rs 12,600 crore so far this fiscal. It has a target of Rs 69,500 crore to be garnered from minority stake sale in PSUs as well as strategic stake sale. With seven months of the current fiscal already over, the Department of Disinvestment has already indicated to the Finance Ministry that it would not be possible to meet the ambitious target.As regards dividend, the government is pushing blue-chip PSUs to either step up their capex or pay higher dividends and not sit on cash pile. Also Read – ‘The great gold bull market has begun’The government had budgeted to collect Rs 36,174 crore by way of dividend from the public sector enterprises, higher than last year’s realisation of Rs 28,423 crore. It has already received a dividend of Rs 65,896 crore from RBI, which is higher than this year’s budget projection of Rs 64,477 crore.Making up for the shortfall in disinvestment through other sources is essential for meeting the fiscal deficit target of 3.9 per cent of GDP.last_img read more

JU to study chances of volcanotriggered tsunami

first_imgKolkata: The Centre for Disaster Preparedness and Management of Jadavpur University is planning to take up awareness measures on the possibility of a tsunami wreck following a volcanic eruption.The move comes after the death of more than 350 people in a tsunami caused after an earthquake in Indonesia, a volcanically active country, in December 2018. There were no warning signs of such a disaster. “We have no knowledge about the quantum of a volcanic eruption, which can bring about a tsunami. We will collect information in this regard through internet or by coordinating with the national and international universities with whom we have collaborations. This will enable us to make our students and the common people more aware and prepare in the face of such a disaster,” said Gupinath Bhandari of civil engineering department of JU, who is in charge of the Centre for Disaster Preparedness and Management college wing. Also Read – 3 injured, flight, train services hit as rains lash BengalAfter the devastating tsunami at the Andaman & Nicobar Islands following an earthquake, we started delving deeper into the quantum of a submarine tremor whose after-effect could be a tsunami. A detailed study in this regard made us aware that if the intensity of an earthquake is over 6.3 on the Richter scale, there are chances of a tsunami and if the intensity is over 7.5 on the Richter scale, then the damage of the disaster becomes much greater. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed”Following this gain of knowledge we have been conducting projects and awareness campaigns and even done some in coordination with Bangladesh. We want to do the same regarding the possibility of a tsunami occurrence after a volcanic eruption. For this, we have to gain knowledge on whether there is any quantum calculation of an eruption that can bring a tsunami as an aftermath,” Bhandari said. The deadly tsunami in Indonesia had killed 373 people and left several trapped in the rubble after strings of buildings collapsed as the tsunami struck almost without any warning. The Ring of Fire where such phenomena occur stretches from Sunda Strait to North America. “It is true that volcano-triggered tsunamis can take place only around the Ring of Fire but as we are working in the area of disaster preparedness, early warning dissemination of knowledge is essential,” Bhandari added.last_img read more

Reliving college memories

first_imgSneaking out of the classrooms, bunking the afternoon lectures and gathering around at the college canteen to treat your taste buds, naturally brings back the smile of nostalgia. Recently, Café Knosh of The Leela Ambience Convention Hotel took me to a trip down the memory lane. The ongoing festival serves the signature dishes from some popular Delhi colleges.Though located in an obscure zone, the appetizing aroma of the food and the beautiful ambience makes Café Knosh an enticing place to reminisce the good old college days over a cutting chai. Also Read – Add new books to your shelfSituated on the third floor of the hotel, the very first moment of stepping into the café gave me the feel of those typical college canteens (but of course the cafe is cleaner and classy). I would love to give a 10 on 10 to the vibrant interiors. The colourful cold drink bottles, books stalked in the shelves, a replica of the basketball court adjacent to the canteen and a bus stop dummy beautifully justifies and enhances the overall theme of the festival. Also Read – Over 2 hours screen time daily will make your kids impulsiveWhile I absorbed the artistic and aesthetic ambience of the café, I was served with a glass of refreshing orange juice. While I was still struggling with the thought of what to start with (which I always do), I was enlightened by one of the hotel staff (who joined me at the lunch table) that a delhite would anytime grab the bite of chole-bhature over everything else, and so I did the same. The fluffy bhaturas, which did not have even a trace of excess oil, perfectly complimented the spicy yet a bit tangy taste of chole. It was followed by the Pav-Bhaji. Since Pav-Bhaji is something that stimulates my cravings, I couldn’t resist but dig my spoon in the bowl to taste it. Against my expectations, it couldn’t excite my taste buds. But I won’t mind neglecting such a minor disappointment as Rajma Chawal, served afterwards, compensated for the Pav-bhaji. Balanced taste and well-cooked beans actually melt in the mouth. But what won my heart was kadhi-chawal. Though I am not a crazy avid kadhi lover as most of the north Indians are, the quirky taste of the soft pakodas drenched in the yummy curry, fascinated me to bits. With this, I progressed towards the south Indian platter that had masala dosa, Idli and Vada served with three different kinds of chutneys including that of coconut, tomato, and mint. The colorful and fragrant salver took my sense of smell to new heights.So, if the talks are revolving around the canteen food, how can you miss out Maggie, an all time favorite snack? I would delightfully call Café Knosh the mecca of the Maggie lovers. You will find plenty of options, from all veggie Maggie to the chicken masala Maggie, which will explore your taste buds to an explosion of zesty flavor that you have loved all your life.Here I reached the end of a wholesome meal without a dessert but a sizzling cutting chai which indeed preserved the feel of chatting-eating in the college canteen on a rainy day. After such a hearty meal I carried the memories of good food and hospitality that surely will keep prompting me to revisit a place like Café Knosh.last_img read more

South Dinajpur to conduct twoday drive on voting rights

first_imgBalurghat: South Dinajpur district administration will conduct a special awareness drive for two days to encourage people to cast votes during the upcoming Parliamentary elections slated for the region on April 23.Addressing mediapersons the district magistrate Deepap Priya P said on Monday: “The district administration will organise an awareness drive for two days starting Tuesday to encourage the voters, especially the new ones, to cast votes,” she said. Priya P said the district administration was on alert to ensure free and fair polls in the region. Also Read – Bose & Gandhi: More similar than apart, says Sugata Bose”The Election Commission of India has directed us to ensure voters’ participants in large numbers in the upcoming poll. We have introduced a special mask mascot to attract young generations to enlist their names in the electoral roll. We are happy to announce that our initiative has received good response from people,” she said. Answering a question about the deputation of Central forces in South Dinajpur, she said the district administration is yet to receive any information on the issue. In a significant announcement, the district magistrate said mediapersons on the basis of their applications may be able to cast Election Duty votes. “We know that the district correspondents remain busy covering the reports on poll. If they want, they can cast ED votes. This is happening for the first time in the district,” she said. She also sought cooperation from the media to ensure hassle-free polls. She said the district has 1305 polling booths and 144 sectors. Later, during the press conference she unveiled a huge election mascot.last_img read more

BJP needs communal riots fake patriotism lies to survive

first_imgBatanagar: Coming down heavily on BJP, Trinamool Youth Congress president Abhishek Banerjee said the party needs communal riots, fake patriotism and constant lies for survival. He was addressing a rally here on Sunday afternoon.Banerjee said the saffron party has tried to create confusion throughout the country by circulating lies. “BJP gives false data and figures to create confusion among people. But their leaders have understood that they cannot confuse people in Bengal by spreading lies. They are scared of Mamata Banerjee because she raises her voice against the BJP for telling lies constantly,” he said. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataHe said that after failing to counter him politically, BJP has tried to harass him on one pretext or the other. “But they have failed because I have protested against their attempts to malign me,” he said. In the history of India, no political party has spread hate politics more violently than the BJP, Banerjee said. “They try to weaken the society by dividing people and by spreading hate politics. They incite one group against the other for their gain. We should work together to oust them in the ensuing election,” he added. Addressing party workers, he said: “We are grateful to Mamata Banerjee for she has given us the opportunity to work for the people. We can express our gratitude by working for the people tirelessly.” Also Read – Lightning kills 8, injures 16 in stateHe said more development will be carried out in Diamond Harbour and it will be upgraded into an important tourist centre. “In terms of expenditure of MPLAD funds, Diamond Harbour constituency stands first and it will maintain this trend in future also,” he added. Banerjee said he will stay in Diamond Harbour from May 11 to 17 and will visit every booth in the area. “We will have to work in a united way to oust BJP from power,” he told party workers and leaders.last_img read more

Leo Messi Sentenced to 21 months in prison for tax evasion

first_imgWe’ve all been there. You miss a huge penalty kick in the final of a major soccer championship to lose the title for your country, retire from international soccer, and the next week you get sentenced to prison for tax evasion.That’s exactly what just happened to world football superhero Lionel Messi, who was sentenced to 21 months in prison and assessed a €2 million fine by a Spanish court for tax evasion, following his hugely disappointing Copa America choke job.Messi, who was accused of stashing money in “Panama Files” hideouts in Uruguay and Belize, can appeal the conviction. Most think it’s unlikely that Messi will seve any actual jail time, but it remains to be seen.Regardless of the outcome, it’s been a rough month for La Pulga.BREAKING: Lionel Messi given 21-month prison sentence for tax fraud. #SSNHQ https://t.co/b8zdhTrO09— Sky Sports News HQ (@SkySportsNewsHQ) July 6, 2016last_img read more

2016 Fantasy Football Preview Top 10 Tight Ends

first_imgJason Witten – Dallas2015 statsReceptions –         75Yards –                   850TD –                        3What you need to know: Witten caught 77 passes last year with the vomit inducing QB trio of Matt Cassel, Brandon Weeden and Kellen Moore throwing to him most of the year. With Tony Romo out for at least the first half of the year, he’ll be catching passes from preseason all-world rookie quarterback Dak Prescott. Still, don’t count him out for 70+ catches.Zac Ertz – Philadelphia2015 statsReceptions –          72Yards –                    800TD –                         2What you need to know: Ertz put up nice PPR stats with Sam Bradford in Chip Kelly’s no huddle system last year. Typically, changing coaches and offensive philosophy is always a risky proposition, but Bradford is still the starter (at least to until he’s not), and the Eagles project to be terrible, which only means they’ll be passing from behind in the second half of games. Targets, targets, targets. There are worse situations.Coby Fleener – New Orleans2015 statsReceptions –         69Yards –                   795TD –                        4What you need to know: Fleener was serviceable in his last year in Indianapolis without Andrew Luck for the majority of the season. His slotting here is mostly based on the projection that he’ll be catching passes from Drew Brees, who has missed a go to tight end since the departure of Jimmy Graham to his Seattle purgatory.  Usually new team and new offense = bad news, but Fleener should thrive with plenty of targets in the Saint volume passing offense.Tyler Eifert – Cincinnati2015 statsReceptions –         52Yards –                   615TD –                        7What you need to know: Eifert led all tight ends with 13 TD’s last year and looked like a lock to be Top 5 tight end this season. A seemingly minor ankle injury in the Pro Bowl ended up requiring surgery and Eifert looks like he’ll miss the first month of the season. Also, the departure of offensive coordinator Hue Jackson raises more questions. Love the talent, just some bad vibes around the situation. Huge upside in a best case scenario. Who knows when he’ll be back. Worth a stash-and-hope for a late season surge. Jordan Reed – Washington2016 projectionsReceptions –          85Yards –                   1,100TD –                        10What you need to know: Reed had a breakout 2015 campaign, proving to be a nightmare matchup for opposing defenses and a lethal red zone threat. Strong finish to the year. Another year with Kirk Cousins in the pass Jay Gruden’s pass heavy offense will only help. Reed’s biggest question mark has always been durability, specifically concussions. If he’s healthy, he could catch 100 balls. If. He’s. Healthy.Delanie Walker – Tennessee2016 ProjectionsReceptions –          90Yards –                   1,000TD –                        7What you need to know: Walker established himself as rookie Marcus Mariota’s go-to target and led all tight ends with 94 catches in 2015. Mariota/Walker chemistry should continue to improve, but it has yet to be determined how the addition of Demarco Murray will impact Walker. Murray will help the Titans rushing attack which could lead to fewer targets and a slight down tick in stats for Walker. I hear soundbites from Ken Wisenhunt referring to how much they’re gonna run the ball and I’m not crazy about that. He’s still a legit #1.Greg Olsen – Carolina2016 ProjectionsReceptions –           81Yards –                    1,050TD –                         9What you need to know: Olsen is Cam Newton’s go-to, and that shouldn’t change. Look for Olsen to stay among the league leaders for tight ends in most major offensive categories. More of the same is great for fantasy owners. Not too much analysis needed here. Also, friend of The Herd..@gregolsen88 on his @Panthers teammate Cam Newton: He’s transcending the quarterback position. #TheHerdhttps://t.co/NkH7cMHLsk— Herd w/Colin Cowherd (@TheHerd) June 30, 2016 What you need to know: If Gronk is healthy, he’s #1. He’s healthy. Last year, he led all tight ends in yards, yards per game, yards per catch, catches over 20 and 40 yards, and killer party cruises. Even though he’ll be catching passes from “not Tom Brady” for the first four games, Gronk should be targeted more than a drunk American swimmer in Rio. That actually never happened. When Brady returns from suspension, they might leave the league resembling a post-nuclear Chernobyl.The Gronk Party Cruise will be permanently docking. Sorry #Patriots fans #NFL #RobGronkowski pic.twitter.com/2BQ69smgMv— Chat Sports (@ChatSports) May 7, 2016 No position in fantasy football has increased in value over the last 5 years more than tight end. The days of the 50 catch, in-line blocker have been replaced by the era of high volume pass catching hybrids. In 2015, 7 tight ends caught over 70 passes, and four surpassed 1,000 yards.Make sure you target a productive tight end in your draft so you don’t get stuck with a platoon of hot, run blocking garbage where fantasy points go to die. Here are the Top 10 Fantasy Tight Ends for 2016:Rob Gronkowski – New England2016 projectionsReceptions –          83Yards –                   1,220TD –                        14center_img Travis Kelce – Kansas City2016 ProjectionsReceptions –          80Yards –                   1,050TD –                        6What you need to know: Kelce continued to establish himself as an elite, physically dominant tight end last year. Andy Reid’s short passing game is basically tight end porn. More continuity with efficient Alex Smith projects Kelce to have career highs and ascent into elite tight end status.Gary Barnidge – Cleveland2015 statsReceptions –         85Yards –                   990TD –                        7What you need to know: Arguably the first legitimate offensive threat for the Browns since pre-Y2K, Barnidge looks to build on an impressive 2015. In most cases, changing quarterbacks and head coaches can be a bad sign, but new Browns Head Coach Hue Jackson is a huge offensive upgrade. “Football Jim Thome” has shown good early chemistry with RGIII, who should be an improvement over the tandem of Josh McCown and Johnny Coachella.Preseason? Doesn’t matter.@Browns QB @RGIII is out here putting on a SHOW.?????? #ATLvsCLE https://t.co/vELrR9ZADw— NFL (@NFL) August 19, 2016 Advertisementlast_img read more