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Razers new Mamba mouse has most accurate laser ever and rainbow lighting

first_imgRazer has announced the latest device in its colorful line of Chroma accessories, the updated Mamba gaming mouse. It will come in standard and tournament editions, both with the most accurate laser tracking ever packed into a mouse. It has all the bells and whistles, but it won’t come cheap.The new Mamba has a 5G laser sensor with a 16,000 DPI resolution and optimization for multiple displays or high-resolution monitors. The sensor can track in increments as small as one DPI for ultra-precise movements. Most gaming mice can only track down to 50 DPI. The Mamba also has a configurable lift-off distance (the amount you can lift the mouse off the mat before it stops tracking) as low as 0.1mm.Being part of Razer’s Chroma lineup means you’ll get customizable lighting on the mouse. There are two bands of LEDs down the sides of the mouse that can be lit with 16.8 million different colors. If you have another Chroma product like the Firefly mousepad — which goes great with this mouse — the lighting will synchronize to display the same colors even if you have them set to change automatically. Developers can use the Chroma SDK to display lighting effects in games as well.Razer is also implementing a feature in the Mamba called Click Force. It allows you to actually set the actuation force required for the left and right mouse buttons. Maybe you want a very light press on the left button for firing a weapon, but a more normal amount of force is appropriate for the right click. There are nine buttons total on the mouse.The standard Mamba is a wireless mouse with 20 hours of gaming battery life and a little charging stand. That version will run you $149.99. The Tournament Edition is thus named because it’s wired to avoid any possible lag, but it’s cheaper at just $89.99. Both mice will be available in Q3 this year — so in the next few months.last_img read more

Pokemon Go Evolves This Summer With New Gyms Raid Battles

first_img Truly, we all live in a Pokemon world. Two new Pokemon games are coming to the 3DS this fall along with the fighting game spin-off Pokken Tournament on Nintendo Switch. A true Pokemon RPG for Switch is on the horizon, and mobile game Magikarp Jump is the Game of the Year. But in terms of sheer impact and financial success, the modern Pokemon game to beat is probably still the augmented-reality phenomenon Pokemon Go.While the game will most likely never be as ubiquitous as it was during its debut last summer, the developers at Niantic are certainly trying to give players good reasons to return. This summer Pokemon Go evolves with new gyms and raid battle systems.I’d argue that Pokemon Go’s initial shallowness (along with its focus on first generation Pokemon) is actually what allowed it to be such a mainstream hit. However, Pokemon fans have been asking for deeper gameplay mechanics from the game for a while now, and this upcoming update should push the game in that direction.Soon, you will only be able to put six Pokemon in a real-world gym, and each must be a different species of Pokemon. But you can determine the order in which challengers battle your monsters. Like PokeStops, gyms will also now provide items as well as unique badges. As Pokemon in a gym lose battles their Combat Points (CP) decrease due to the new “motivation” stat. Teammates can feed friendly monsters berries to raise motivation but once the meter runs out the Pokemon abandons the gym and returns to its trainer.Raid battles, meanwhile, are limited-time co-op events. Once triggered, players can team up with up to 19 other friends or strangers nearby to battle one powerful Pokemon before time runs out, like the fight against Mewtwo in Times Square(?) in the original Pokemon Go trailer. Win and you can use special Premiere Balls to try and catch the raid boss. Sounds like a great way to introduce more legendary Pokemon into the game (as well as make more real-world deals by turning the local Applebee’s or whatever into a “sponsored gym”). Other prizes include special berries and candies and TMs for easier catching and nurturing and teaching Pokemon better moves.To prepare for the update, Niantic is shutting down existing gyms. But they’ll soon return in the all-new, all-different Pokemon Go. In the meantime, improve your trainer skills with our Pokemon Go strategy guide.Let us know how we’re doing Battle Team Rocket in New ‘Pokemon Go’ Update‘Pokemon Sleep’ Puts Pocket Monsters in Your Dreams Stay on targetlast_img read more

These Robots Crawl With the Power of Snakes

first_img Robots have known how to walk and run for years now. Just play a Metal Gear game or check out what Boston Dynamics is up to. So it’s about time they learn how to crawl. Sound backwards? It won’t after you check out this new robotics breakthrough. As published in a paper by Science Robotics, researchers can now make robots that crawl just like (solid) snakes.If you’ve been too repulsed to look up how snakes move with just their bellies, I’m sorry that I’m about to make you think about that. Snake skin is covered with tons of interlocking scales, and the special scales beneath them cling to the ground and push the animal forwards or backwards through friction as muscles expand and contract. Play the game Snake Pass for a more interactive lesson.This new research paper “Kirigami Skins Make a Simple Soft Actuator Crawl,” authored by Harvard mechanical engineer Ahmad Rafsanjani, argues and demonstrates with diagrams that the same principles can be cleverly applied to air-powered soft robotics. Using a 3D printer, the researchers created their own snake skin and wrapped it around a tube. As the tube inflated and deflated itself it then moved just like its scaly inspiration.AdChoices广告Reaching this point took more experimentation than just looking at a snake and saying “That but a robot.” Researchers had to determine which scale shapes would be more efficient, with trapezoids ultimately winning. They also looked at Japanese kirigami paper-cutting for tips on creating the skin itself. And while snakes may have been a starting point, ideally these robots would be able to move in ways snakes cannot in order to perform tasks like invasive surgery or tight construction work.So if you’re keeping a list of what cool new robots you can expect to see in the future, it’s time to add robot snakes. And if you’re keeping a list of what terrifying new robots you can expect to see in your nightmares, it’s time to add robot snakes.Let us know what you like about Geek by taking our survey. Get Used to ‘Fortnite’s’ Powerful Mech SuitsRobots to Compete in Underground Challenge in Mining Tunnels Stay on targetlast_img read more

New Evidence for the Solar Oxygen Crisis

first_img Citation: New Evidence for the ‘Solar Oxygen Crisis’ (2007, May 2) retrieved 18 August 2019 from Scientists have published new evidence supporting the recent discovery that the Sun contains about half as much oxygen as previously thought, an issue some scientists have dubbed the solar oxygen crisis. This is a potentially huge scientific problem because scientists have used the particular prior measurement as a platform for understanding the inner workings of other stars. Oxygen is the third most abundant atom in the universe and the element most frequently produced in the “nuclear furnaces” of stars. In many astrophysical situations, oxygen is linked to the abundances carbon, nitrogen, and neon. If the oxygen abundance in the Sun is half as much as scientists thought, these other elemental abundances may also be off by a factor of two.“The abundance of solar oxygen serves as a key reference for the chemical composition of other stars,” lead scientist Hector Socas-Navarro, of the National Center for Atmospheric Research, explained to “We thought we had very solid measurements of this abundance since the 1980s, but recent evidence indicates that we’ve been overestimating it by almost a factor of two. The implications of this are incredibly important.”In the April 19, 2007, online edition of The Astrophysical Journal, Socas-Navarro and colleague Aimee Norton, a solar physicist at the National Solar Observatory, discuss how they obtained new evidence for the solar oxygen crisis by using a type of light-analysis device to take measurements of infrared and visible light radiating from a patch of the Sun.The device, known as the Spectro-Polarimeter for Infrared and Optical Regions (SPINOR), attaches to a telescope; in this case, the Richard Dunn Solar Telescope located in Sunspot, New Mexico. The telescope collects the light and sends it to SPINOR, which analyzes its properties. Because atoms in the Sun emit light at very specific wavelengths, the researchers can calculate the abundances of various elements by measuring the wavelengths of light rays coming in.Analysis of the SPINOR data produced a value of the oxygen abundance that agrees with calculations by other research groups studying the solar oxygen crisis. The measurement contained larger-than-expected uncertainty.“This measurement is more uncertain than we thought it would be, which is one of the interesting conclusions of our particular work,” said Socas-Navarro.He added that there is another major downside of a lower oxygen abundance. Models of the solar interior once predicted that sound waves in the Sun traveled at certain speed, a value that agreed well with the measured speed. Because the speed depends on composition, this is another way that scientists learn about the processes that take place in the Sun, what elements it is made of, and in what quantities. Now, with the Sun having half as much oxygen, carbon, nitrogen, and neon, the sound speed derived from the models doesn’t match the measured speed well.“Exactly what this means is not very clear, but it casts doubt on the correctness or at least the accuracy of models of stellar interiors, which are a cornerstone of modern astrophysics,” he said.Citation: H. Socas-Navarro and A.A. Norton, “The solar oxygen crisis: Probably not the last word” The Astrophysical Journal, 660:L153-L156, 2007 May 10Copyright 2007 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of 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 Scientists find sun’s history buried in moon’s crust Explore furtherlast_img read more

Building a more versatile laser

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. ( — One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. There have been efforts to tune lasers so that different wavelengths can be achieved, but these lasers still emit light only in one direction, and one wavelength at a given time. All that could change, though. Harvard University scientists Federico Capasso and Nanfang Yu , in Cambridge, Massachusetts, have been working with an international team to develop a laser that offers multibeam emission. Citation: Building a more versatile laser (2009, November 16) retrieved 18 August 2019 from Scientists demonstrate highly directional semiconductor lasers The special grating directs laser beams. Illustration by Nanfang Yu, simulation results from the computer modeling and 3D illustration software. Explore further “Usually semiconductor lasers can only emit a single wavelength. Our design, though, allows us to emit beams in different directions, as well as beams of different wavelengths,” Capasso tells Capasso believes that this work with fellow scientists at Harvard, and from the Institute of Quantum Electronics in Zurich, Switzerland, as well as Hamamatsu Photonics K.K. in Hamamatsu, Japan, will lead to a number of uses in a variety of applications in the future. He refers to the group’s efforts as “beam engineering.” The results of the latest simulations and experiments the group has done with multibeam lasers can be seen in Applied Physics Letters: “Multi-beam multi-wavelength semiconductor lasers.”The secret to the success of these lasers, Capasso explains, is the specially designed collimator used to direct the beams. “We realized that by designing a special collimator with two different gratings, we could create a beam that comes out to you at a certain angle, and another beam that comes out at a different angle. This essential allows us to use diffraction and interference to design beams to our specifications.”Previously, Capasso and his peers had shown how a plasmonic structure with aperture grating on a laser facet could collimate the beam that emerged. Taking this principle, the international team decided to split the beam of a quantum cascade laser into two different beams by using successive plasmonic gratings to define different lengths and periods on the laser’s facet. The result was that it was possible to create two different beams – of different wavelengths and heading in different directions – with the same laser.“We have created a multi-functional laser,” Capasso insists, “that has a lot of potential. Not only can this add to the functionality of lasers as we have them already, but there is also the possibility of new applications in the future. This beam engineering will make lasers more efficient, since it requires more focus on designing the facet, rather than having to build an entire laser for each application.” Some of the possible applications include fiber optic communications, interferometry, spectroscopy, holography, and LiDAR (light detection and ranging).Capasso hopes that this work can be continued in the future. “We want to be able to steer the beam in real time, rather than having to set it ahead of time. Real time beam steering has been done by using multiple lasers in complicated maneuvers, but we hope to be able to use beam engineering to do it with a single laser.”More information: Nanfang Yu, et. al., “Multi-beam multi-wavelength semiconductor lasers,” Applied Physics Letters (2009). Available online: Copyright 2009 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of read more

Scientists find first evidence that many universes exist

first_img Citation: Scientists find first evidence that many universes exist (2010, December 17) retrieved 18 August 2019 from ( — By looking far out into space and observing what’s going on there, scientists have been led to theorize that it all started with a Big Bang, immediately followed by a brief period of super-accelerated expansion called inflation. Perhaps this was the beginning of everything, but lately a few scientists have been wondering if something could have come before that, setting up the initial conditions for the birth of our universe. More information: Stephen M. Feeney, Matthew C. Johnson, Daniel J. Mortlock, and Hiranya V. Peiris. “First Observational Tests of Eternal Inflation.” arXiv:1012.1995v1 [astro-ph.CO]via: The Physics arXiv Blog Scientists glimpse universe before the Big Bang The signatures of a bubble collision: A collision (top left) induces a temperature modulation in the CMB temperature map (top right). The “blob” associated with the collision is identified by a large needlet response (bottom left), and the presence of an edge is determined by a large response from the edge detection algorithm (bottom right). Image credit: Feeney, et al. Explore further © 2010 In the most recent study on pre-Big Bang science posted at, a team of researchers from the UK, Canada, and the US, Stephen M. Feeney, et al, have revealed that they have discovered four statistically unlikely circular patterns in the cosmic microwave background (CMB). The researchers think that these marks could be “bruises” that our universe has incurred from being bumped four times by other universes. If they turn out to be correct, it would be the first evidence that universes other than ours do exist.The idea that there are many other universes out there is not new, as scientists have previously suggested that we live in a “multiverse” consisting of an infinite number of universes. The multiverse concept stems from the idea of eternal inflation, in which the inflationary period that our universe went through right after the Big Bang was just one of many inflationary periods that different parts of space were and are still undergoing. When one part of space undergoes one of these dramatic growth spurts, it balloons into its own universe with its own physical properties. As its name suggests, eternal inflation occurs an infinite number of times, creating an infinite number of universes, resulting in the multiverse.These infinite universes are sometimes called bubble universes even though they are irregular-shaped, not round. The bubble universes can move around and occasionally collide with other bubble universes. As Feeney, et al., explain in their paper, these collisions produce inhomogeneities in the inner-bubble cosmology, which could appear in the CMB. The scientists developed an algorithm to search for bubble collisions in the CMB with specific properties, which led them to find the four circular patterns.Still, the scientists acknowledge that it is rather easy to find a variety of statistically unlikely properties in a large dataset like the CMB. The researchers emphasize that more work is needed to confirm this claim, which could come in short time from the Planck satellite, which has a resolution three times better than that of WMAP (where the current data comes from), as well as an order of magnitude greater sensitivity. Nevertheless, they hope that the search for bubble collisions could provide some insight into the history of our universe, whether or not the collisions turn out to be real. “The conclusive non-detection of a bubble collision can be used to place stringent limits on theories giving rise to eternal inflation; however, if a bubble collision is verified by future data, then we will gain an insight not only into our own universe but a multiverse beyond,” the researchers write in their study.This is the second study in the past month that has used CMB data to search for what could have occurred before the Big Bang. In the first study, Roger Penrose and Vahe Gurzadyan found concentric circles with lower-than-average temperature variation in the CMB, which could be evidence for a cyclic cosmology in which Big Bangs occur over and over. 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

The other side of Ghalib

first_img‘Mirza Ghalib portrayed on the stage a number of times but never in a negative avatar. And that is the basic premise of my play, said Aziz Qurashi. Generally, people tend to go gaga at the mere mention of the Urdu poet. But few are aware that he had a negative side to him as well.  Qurashi, in his play Aitraaf-e-ghalib (which means confessions of Ghalib),  explores facets of him which are either unknown to many or simply kept under wraps for fear of disgrace. Also Read – ‘Playing Jojo was emotionally exhausting’‘The plot of the play revolves around Ghalib in the last stages of his life and as he lay on his death bed, how the poet ruminated about his past deeds and mistakes which he now knows can never be reversed’ said Qurashi.Ghalib is portrayed as a split personality on the stage whereby there are three Ghalibs. One portrays the role a nawab, the second a poet and the third old Ghalib.The highlight of the play is a dialogue between the two Ghalibs (Nawab and poet) and how each one questions the other’s existence and tries to explore who is more imperative for survival and fame. Also Read – Leslie doing new comedy special with Netflix‘Like the Nawab Ghalib points out that if he was not born in a aristocratic family, then the poet Ghalib would have never been honed. Similarly, the poet Ghalib says that if he never tried his hand at poetry, then no one would have cared for Nawab’s aristocracy,’ added Qurashi.Aitraaf-e-Ghalib is a musical based on flashbacks. ‘Ghalib indulged in all sorts of vices. He used to go to prostitutes, was an alcoholic but at the same time was a genius,’ said Qurashi. One of the most striking facts about Ghalib’s life was that he never mentioned his wife or children. Nor was there any narration about his family life. But he used to visit a brothel where his mistress used to sing his couplets as songs and entertain people during those days.With a cast and crew of over 35 people, the play has been recreated using 80 per cent of Ghalib’s original letters. ‘With a view to get as real as possible, the same atmosphere in terms of costumes, props and lighting has been recreated on the stage,’ said Qurashi.DETAILAt: Stein Auditorium, India Habitat Centre, Lodi Road When: 30 December Timings: 7 pm onwardslast_img read more

BJP spending money to publish fake news Mamata

first_imgKolkata: Coming down heavily on the opposition, Chief Minister Mamata Banerjee on Wednesday said that an unholy nexus has been formed that is misinforming people in connivance with a vernacular daily.Elaborating on the ongoing trouble and violence before the forthcoming Panchayat polls, she said problems have arisen in namely seven districts. In Mohammadbazar, the BJP had brought in people from Jharkhand. In Bankura, veteran CPI(M) leader Basudeb Acharya was injured. In Sandeshkhali, a Trinamool Congress worker was killed while in Sashan in North 24-Parganas, a party leader was murdered on Wednesday evening. In Murshidabad, there were incidents of violence and in Birbhum’s Nalhati, a vernacular daily had created a hype, trying to influence people. In South Dinajpur, veteran party leader Asim Ghosh’s house was ransacked by unidentified miscreants. Also Read – Heavy rain hits traffic, flights”I generally do not take the name of the newspaper but it is Anandabazar that is circulating false stories. If we recall, before 2016 Assembly polls, the newspaper had written against the TMC and projected an alliance. Now, it is writing stories in such a manner as if there is violence throughout the state and such stories are being circulated to mislead the masses.”The Chief Minister said no incidents of violence were reported from East and West Burdwan, North Dinajpur, Cooch Behar, Malda and Nadia. She alleged that the BJP was trying to mislead people and are “spending money to publish false news just to create hype. I do not know whether it is BJP’s paid news or not.” Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedShe further added: “If any incident takes place, one vernacular television channel circulates the news throughout the day just to influence the commoners.”She also wondered that if violence had erupted in the whole of Bengal, then how could the opposition file nearly 70,000 candidates and “if you take the number of Independent candidates, it amounts to somewhere around 90,000.”Banerjee stated: “How could we forget those days when our supporters were killed by the CPI(M) cadres in Netai, Singur and Nandigram. They chopped off the hands of our supporters in Howrah. Our candidates were prevented from filing nominations in the Panchayat elections. In 2003, we had filed 30,000 candidates followed by 35,000 candidates in 2008.” Banerjee maintained that the opposition does not have the strength to file candidates in all the seats. “They fail to get candidates. It is not our fault. I cannot go to their houses to cook food,” she said.She alleged that the BJP, CPI(M) and Congress are working hand-in-glove in the Panchayat elections. She also said many CPI(M) backed goons have become candidates for the BJP. “It’s a real shame. The party has failed to strengthen its organisation and now the goons are working for a communal party like the BJP.” She said in Delhi, the Congress is against the saffron party and here in Bengal, they are working with it. We don’t believe in such a principle. We are against the communal BJP in Bengal and in Delhi as well.”Banerjee added that there will not be any bandh called by the Left Front on April 13. “It’s another gimmick. It is a six-hour bandh from 6 am to 12 noon. Most of the shops are opened after 10 am. People come to the office around 11 am.” She said the buses and vehicles will ply as usual and the offices will remain open too.Speaking on the assault of a journalist, she said no police complaint was made. “It is a tragedy that before going to the administration to register a complaint, they have lodged one with a local vernacular daily and made a huge noise to attract the attention of the people.”last_img read more

IAS cadre sees reshuffle

first_imgKolkata: In a reshuffle in the IAS cadre in Bengal, Dr Preeti Goyal has become the Additional District Magistrate (ADM) of North 24-Parganas.An IAS of 2013 batch, Dr Goyal, who is a medical practitioner, was earlier posted as Sub-Divisional Officer (SDO) Arambagh. She had fought against illegal sand mining as SDO Arambagh and brought an end to the menace in the area. Dr Goyal had also united a 65-year-old woman with her near and dear ones after five decades, after finding out her native place in Nagaland. Also Read – Heavy rain hits traffic, flightsNitin Singhania of the same batch has become the Joint Secretary in Chief Minister’s Office (CMO). He was earlier posted as SDO Kalna. Abhishek Kumar Tiwary, who was Joint Secretary in CMO, has been made ADM Howrah. Dr Rajat Nanda, who was SDO Serampore, has become ADM Hooghly and Nidhi, who is also of the 2013 batch, has become ADM Nadia. Anshul Gupta has become ADM Murshidabad. He was earlier posted as SDO Uluberia.Tshering Y Bhutia, who was SDO Islampur, has become ADM Jalpaiguri. Manish Mihra is the new SDO Islampur. Raju Mishra, who was Officer on Special Duty (OSD) in Higher Education department, has become SDO Khatra. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedDr Akanksha Bhaskar, OSD of Health and Family Welfare, has become ADO Raghunathpur. Tushar Singhla, OSD of Power department, has become SDO Uluberia.Smrutiranjan Mohanty of 2015 batch has become SDO Rampurhat. He was earlier posted as OSD School Education. Lakshmi B Tanneeru, OSD of the Women and Child Development and Social Welfare department, has become SDO Arambagh.Shevale Abhijit Tukaram has become SDO Kalimpong. Kuhuk Bhushan, who was OSD Finance, has become SDO Haldia. Dhivya L, who was an OSD in Personnel and Administrative Reforms and e-governance department, has become SDO Domkal. Srikanth Palli has been posted as SDO Durgapur.last_img read more

Blend your summer clothes with winter

first_imgFalling short of winter wear and have an office party to attend? A great mix of summer and winter wear can ease your dressing woes in the winter season.Here are five ways to glamourise your summer outfit for the winter season:Floral summer dress: A cute floral summer dress can go great lengths when paired with the right accessories. Heels can glamorise any outfit, so team your favourite pair of black pumps with your summer dress. Another way of turning a summer dress into a party outfit is by slapping on a black blazer and head to your office party in style. Also Read – Add new books to your shelfPlain sheath dress: Do you have any plain dress in your wardrobe? It could be a plain black shirt dress or a plain dress in any colour. You can add glamour to this by either sporting a sequined clutch and high gladiator heels or mules. This look is sporty, chic yet glamorous.A logo shirt: Who would’ve thought wearing a simple logo shirt can make a fun party outfit? Pair the logo t-shirt with a high waist leather skirt. This look is grungey and can make a perfect festive outfit when completed with a pair of black pumps. A pair of studded earrings adds that extra bit of oomph.Playsuits: Playsuits are another great option to turn into party wear. Pull out any solid colored playsuit as they’re flirty and fun, just about perfect for any night out. They’re comfortable yet glamorous and look great the way they are. Pair heels along chunky bracelets and earrings to go with them.last_img read more