necro81 writes "The US National Renewable Energy Laboratory has announced that it has developed a new method for air conditioning that reduces energy use by 50-90%. The DEVap system (Desiccant-Enhanced eVaporative air conditioner) cools air using evaporative cooling, which is not new, but combines the process with a liquid dessicant for pulling the water vapor out of the cooled air stream. The liquid dessicant, a very strong aqueous solution of lithium chloride or sodium chloride, is separated from the air stream by a permeable hydrophobic membrane. Heat is later used to evaporate water vapor back out — heat that can come from a variety of sources such as solar or natural gas. The dessicants are, compared to typical refrigerants like HCFCs, relatively benign on the environment."

theodp writes "Among the tips Derek Sivers offers for how to hire a programmer to make your ideas happen is an intriguing one: hire more than one person to complete your first programming milestone, with the expectation that one will go bad, one will be so-so, and one will be great. 'Yes it means you're paying multiple times for this first milestone,' says Sivers, 'but it's worth it to find a good one.' It's not a new idea — the practice of pitting two different programmers against each other on the same task was noted three decades ago in Tracy Kidder's Soul of a New Machine — but one that never gained widespread acceptance. Should the programming code-off be adopted as a software development best practice?"

Hugh Pickens writes "The New York Times has an interesting article about the thousands of analysts based in the United States for the Central Intelligence Agency and the US military who are showing how the Facebook generation's skills are being exploited — and paying dividends — in America's wars. Analysts monitor enemy communications and scan still images from drones in Afghanistan, then log the information into chatrooms, carrying on a running dialogue with drone crews and commanders and intelligence specialists in the field, who receive the information on computers and then radio the most urgent bits to troops on patrol. Marine intelligence officers say that during an offensive in February, the analysts managed to stay a step ahead of the advance, sending alerts about 300 or so possible roadside bombs, paving the way for soldiers to roll into Marja in southern Afghanistan with minimal casualties. 'To be that tapped into the tactical fight from 7,000 to 8,000 miles away was pretty much unheard of before,' said Gunnery Sgt. Sean N. Smothers, a Marine who stationed as a liaison to the analysts. New analysts, who were practically weaned on computers and interactive video games, have been crucial to hunting insurgents and saving American lives in Afghanistan. The Air Force, which has 4,000 analysts, is hiring 2,100 more. For the most part, the networking has been so productive that senior commanders are sidestepping some of the traditional military hierarchy and giving the analysts leeway in deciding how to use some spy planes."

metasonix writes "While the rest of the industry has been babbling on about the iPad and imitations thereof, Qi Hardware is actually shipping a product that is completely open source and copyleft. Linux News reviews the Ben NanoNote (product page), a handheld computer apparently containing no proprietary technology. It uses a 366 MHz MIPS processor, 32MB RAM, 2 GB flash, a 320x240-pixel color display, and a Qwerty keyboard. No network is built in, though it is said to accept SD-card Wi-Fi or USB Ethernet adapters. Included is a very simple Linux OS based on the OpenWrt distro installed in Linksys routers, with Busybox GUI. It's apparently intended primarily for hardware and software hackers, not as a general-audience handheld. The price is right, though: $99."

ElectricSteve writes "At Computex 2010 AMD gave the first public demonstration of its Fusion processor, which combines the Central Processing Unit (CPU) and Graphics Processing Unit (GPU) on a single chip. The AMD Fusion family of Accelerated Processing Units not only adds another acronym to the computer lexicon, but ushers is what AMD says is a significant shift in processor architecture and capabilities. Many of the improvements stem from eliminating the chip-to-chip linkage that adds latency to memory operations and consumes power — moving electrons across a chip takes less energy than moving these same electrons between two chips. The co-location of all key elements on one chip also allows a holistic approach to power management of the APU. Various parts of the chip can be powered up or down depending on workloads."

Thanks to researchers at Cranfield University, you don't have to feel bad when you plow into a group of pedestrians who are crossing the street too slowly. They have designed an external airbag that mounts to your hood at the base of the windshield. Research shows that this is the area where a pedestrian's head is most likely to hit in an accident. "Test results indicate that the system works extremely well. When fitted to a demonstrator vehicle not originally designed with pedestrian protection in mind, the results were well inside all current legal criteria for pedestrian protection currently in force in Europe," Roger Hardy of the university's Cranfield Impact Centre said.

jd writes "In a follow-up study to the one on proteins found in a T. Rex bone, the team responsible for the T. Rex study sequenced proteins found in an 80-million year old Hadrosaur fossil. According to the article, the proteins found confirm the results of the T. Rex study, proving that what was found in T. Rex was not a result of modern contamination, as had been claimed by skeptics, but was indeed the genuine thing: real dinosaur protein. Furthermore, despite the new fossil being 12 million years older, they claim they got more out — eight collagen peptides and 149 amino acids from four different samples. This, they say, places the Hadrosaur in the same family as T. Rex and Ostriches, but that not enough was recovered to say just how close or distant the relationship was."