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Popular Mechanics explores the increasing level of reliance the US military has when it comes to robotic assistance. In the last few years, robot drones have reached an all-new level of sophistication, with several models already deployed in the field. Now, the next generation of robot helpers is nearing the end of its test phase. PM offers up a preview of what we could expect to see in the field within the next five years. "The MULE (Multifunction Utility/Logistics and Equipment) is roughly the size of a Humvee, but it has a trick worthy of monster truck rallies. Each of its six wheels is mounted on an articulated leg, allowing the robot to clamber up obstacles that other cars would simply bump against ... Barely a year old, the prototype is a product of the Army's Unmanned Ground Vehicle program, which began in 2001. It has yet to fire a single bullet or missile, or even be fitted with a weapon. Here at the test track it's loaded down with rucksacks and boxes, two squads' worth of equipment."
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esocid tips us to news out of Duke University Medical Center, where researchers have discovered a type of microRNA that is related to the ability of zebrafish to regenerate lost or damaged organs. This is the result of a study initiated after it was discovered that zebrafish were able to recover from "massive injury" to the heart through their own regenerative biology. The scientists hope to be able to use this information to bring about similar healing in humans. Zebrafish have also been helpful in cancer research. "In zebrafish, one or more microRNAs appear to be important to keep regeneration on hold until the fish needs new tissue, the Duke researchers say. In response to an injury, the fish then damp down levels of these microRNAs to aid regrowth. Poss and many other cell biologists believe that mammals may have the same tissue regeneration capability as zebrafish, salamanders and newts, but that it is locked away somewhere in our genome, silenced in the course of evolution."
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Ars Technica brings word that Google Sky, formerly only available as an extension of the Google Earth software, is now accessible through your web browser. The interface of Google Sky is quite similar to that of Google Maps, complete with search and alternate views by spectrum. The story also mentions (and more importantly, links) ten of the more interesting sights. We discussed Google Sky's initial release last year. Quoting: "Visible light only shows us a small picture of the entire universe; non-visible spectra such as ultraviolet (UV), infrared and X-ray hold a whole other world of information. Here is where Google Sky becomes very cool. There are three more sections that highlight fantastic images from the Chandra X-Ray Observatory, the GALEX Evolution Explorer (UV), and the Spitzer Space Telescope (IR). What makes these very cool is that under each selected body there is a slider that will change the displayed image back and forth between the visible and invisible spectrum."
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Boiled Frog from a Nation of Suspects writes "The Oyster card, an RFID single-swipe card (which was recently cracked), was introduced to London's public transport users purportedly to make their lives easier. Now, British Intelligence services want some of the benefits by trawling through the travel data amassed by the card to spy on the 17 million Britons who use it. The article notes, "Currently the security services can demand the Oyster records of specific individuals under investigation to establish where they have been, but cannot trawl the whole database. But supporters of calls for more sharing of data argue that apparently trivial snippets — like the journeys an individual makes around the capital — could become important pieces of the jigsaw when fitted into a pattern of other publicly held information on an individual's movements, habits, education and other personal details. That could lead, they argue, to the unmasking of otherwise undetected suspects."
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An anonymous reader writes "Wikileaks has released a diagram of the first atomic weapon, as used in the Trinity test and subsequently exploded over the Japanese city of Nagasaki, together with an extremely interesting scientific analysis. Wikileaks has not been able to fault the document or find reference to it elsewhere. Given the high quality of other Wikileaks submissions, the document may be what it purports to be, or it may be a sophisticated intelligence agency fraud, designed to mislead the atomic weapons development programs of countries like Iran. The neutron initiator is particularly novel. 'When polonium is crushed onto beryllium by explosion, reaction occurs between polonium alpha emissions and beryllium leading to Carbon-12 & 1 neutron. This, in practice, would lead to a predictable neutron flux, sufficient to set off device.'"
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Analysts observing the videogame industry forsee 2008 being another blockbuster year in sales. Sales during the month of February were considerably up, according to the NPD group. Early in the year is historically a very slow time in the game sales calendar, making the 34% jump for the month highly significant. Grand Theft Auto IV is likely to be an engine for sales throughout the year: "The game, which will be available on the Xbox 360 and Sony Corp.'s PlayStation 3, is expected to boost sales of both consoles. Pre-orders have been better than expected, according to its publisher, Take-Two Interactive Software Inc. Michael Pachter, an analyst with Wedbush Morgan, expects the game to sell about 9 million units during the company's fiscal year, which ends in October. Roughly 6 million of this, he added, will be to Xbox 360 owners."
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Shuntros writes "BBC News is reporting progress from scientists at Harvard Medical School towards strangling the growth of cancer cells. By starving cells of a certain type of enzyme, growth essentially ceases. 'The fact that proliferating cancer are able to consume glucose at a much higher rate than normal cells was first discovered by the German Nobel prize-winning chemist Otto Warburg more than 75 years ago. He also showed that the amount of glucose the cells needed to keep their vital signs ticking over was minimal, allowing them grow and divide at the prodigious rate usually associated with foetal cells.' Certainly not a cure by any stretch of the imagination, but putting the brakes on cancer growth in this way is very much akin to the revolution that was AZT."
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Screaming Cactus writes "Internet users in China were blocked from seeing YouTube.com on Sunday after dozens of videos about protests in Tibet appeared on the site. 'Chinese leaders encourage Internet use for education and business but use online filters to block access to material considered subversive or pornographic. Foreign Web sites run by news organizations and human rights groups are regularly blocked if they carry sensitive information. Operators of China-based online bulletin boards are required to monitor their content and enforce censorship.' The blocking added to the communist government's efforts to control what the public saw and heard about protests that erupted Friday in the Tibetan capital, Lhasa, against Chinese rule."
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