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The Military

Sound Generator Lethal From 10 Meters 314

penguinrecorder writes "The Thunder Generator uses a mixture of liquefied petroleum, cooking gas, and air to create explosions, which in turn generate shock waves capable of stunning people from 30 to 100 meters away. At that range, the weapon is relatively harmless, making people run in panic when they feel the sonic blast hitting their bodies. However, at less than ten meters, the Thunder Generator is capable of causing permanent damage or killing people."
Social Networks

Facebook To Preserve Accounts of the Dead 292

Barence writes "Social-networking site Facebook is planning to preserve the accounts of dead members. The new 'memorialized' accounts will continue to display photos and wall posts, but remove 'sensitive information' such as status updates and contact information. Friends or family who want to report the death of a Facebook member are encouraged to fill out the site's Deceased form. The form asks for proof of death, such as an obituary or news article, although it's not clear how Facebook can validate the death of a member if neither of those pieces of information is published on the internet. How long before someone snuffs it on Facebook before their time?"
Power

Blueprint For a Quantum Electric Motor 97

TechReviewAl writes "Alexey Ponomarev from the University of Augsburg in Germany and colleagues have revealed the blueprints for an electric motor built with just two atoms. The motor would have one neutral atom and one charged atom trapped in a ring-shaped optical lattice. The atoms jump from one site in the lattice to the next as they travel around the ring and placing this ring in an alternating magnetic field creates the conditions necessary to keep the charged atom moving round the the ring. A team from the University of Glasgow in the UK in fact built one of these quantum motors back in 2007, which they called an optical ferris wheel for ultracold atoms. 'The next step, say Ponomarev and co, is to attach the motor to a nanoscopic resonator, such as a spring board or nanomushroom, and make it vibrate. If you can do that, they say, you'd be powering a classical object using a quantum motor.'"
Science

Vertical Farming 503

SolFire writes "The BBC is running a look at the potential for Vertical Farming in the Big Apple, a concept that promises to reduce the environmental impact of farming and increase the efficiency of food production by building multi-story farm complexes in urban areas. The vertical farm is envisioned as a self sustaining complex of greenhouses stacked on top of each other. More details can be found on the project web site."

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