An anonymous reader writes The spacecraft it is hoped will take man to Mars has passed its first parachute tests. Nasa's Orion spacecraft landed gently using its parachutes after being shoved out of a military jet at 35,000 feet. "We've put the parachutes through their paces in ground and airdrop testing in just about every conceivable way before we begin sending them into space on Exploration Flight Test (EFT)-1 before the year's done," Orion program manager Mark Geyer said in a NASA statement. "The series of tests has proven the system and will help ensure crew and mission safety for our astronauts in the future."

sciencehabit (1205606) writes For the first time, scientists have taught computers to figure out the direction of time in videos, a result that could help researchers better understand our own perception of time. Regardless of any possible applications, "we just thought it was a great problem," says one of the study's authors. Teaching computers to see the arrow of time combines computer science, physics, and human perception to get at the heart of the question, "How do we understand the visual world?" The researchers "broke down 180 YouTube videos into square patches of a few hundred pixels, which they further divided into four-by-four grids. Combining standard techniques for discovering objects in still photographs with motion detection algorithms, the researchers identified 4000 typical patterns of motion, or 'flow words,' across a grid’s 16 cells. ... When they tested their program on the remaining 60 videos, the trained computers could correctly determine whether a video ran forward or backward 80% of the time."

A phys.org article says UK researchers have made a breakthrough that could make ammonia a practical source of hydrogen for fueling cars. From the article: "Many catalysts can effectively crack ammonia to release the hydrogen, but the best ones are very expensive precious metals. This new method is different and involves two simultaneous chemical processes rather than using a catalyst, and can achieve the same result at a fraction of the cost. ... Professor Bill David, who led the STFC research team at the ISIS Neutron Source, said 'Our approach is as effective as the best current catalysts but the active material, sodium amide, costs pennies to produce. We can produce hydrogen from ammonia "on demand" effectively and affordably.'" The full paper. The researchers claim that a two-liter reaction chamber could produce enough hydrogen to power a typical sedan.

schwit1 (797399) sends word of a new and exciting use for all of the data various entities are collecting about you. From the article: You may soon get a call from your doctor if you've let your gym membership lapse, made a habit of ordering out for pizza or begin shopping at plus-sized stores. That's because some hospitals are starting to use detailed consumer data to create profiles on current and potential patients to identify those most likely to get sick, so the hospitals can intervene before they do. Acxiom Corp. (ACXM) and LexisNexis are two of the largest data brokers who collect such information on individuals. They say their data are supposed to be used only for marketing, not for medical purposes or to be included in medical records. While both sell to health insurers, they said it's to help those companies offer better services to members.

sciencehabit (1205606) writes Scientists excavating an archaeological site in southern Spain have finally gotten the real poop on Neanderthals, finding that the Caveman Diet for these quintessential carnivores included substantial helpings of vegetables. Using the oldest published samples of human fecal matter, archaeologists have found the first direct evidence that Neanderthals in Europe cooked and ate plants about 50,000 years ago.

mpicpp writes in with news about a new dating opportunity for Mensa members. It takes a special person to join Mensa. For one, the elite society only takes individuals with IQ scores in the 98th percentile, meaning just 1 in 50 Americans is eligible. This exclusivity — some might say snobbery — is part of Mensa's lore. Early Mensans in Britain walked around with yellow buttons, organizational publications once referred to non-Mensa members as "Densans," and last year, a top Mensa member and tester called anyone with an IQ of 60 a "carrot." In short, you don't always join Mensa because you think you're smart. You join to be set apart from most people, who are, as one member put it: "mundane." But a new partnership between American Mensa and online dating giant Match.com offers a new, enticing reason to join the society of geniuses: true love. Beginning this week, members of the brainiac group can connect through a separate, exclusive dating service called Mensa Match. In addition, Match.com members can add a special Mensa badge to their profiles, signaling a specific interest in connecting with a single person with a confirmed genius-level IQ score.