This is what happens when firefox doesn’t crash often enough.
IEEE Spectrum: Robots With Knives: A Study of Soft-Tissue Injury in Robotics
The researchers acknowledge that there are huge reservations about equipping robots with sharp tools in human environments.
‘Underwater kite’ aims to turn energy tide – CNN.com
The technology comprises of a turbine attached to a wing and rudder which is tethered to the ocean floor by 100 meters of cable.
Anchoring “Deep Green” and steering the tethered “kite” enables the turbine to capture energy from the tidal currents at ten times the speed of the actual stream velocity, say Minesto.
But now Gijs Kuenen at Delft University of Technology in the Netherlands and colleagues are developing a technique that cuts out the energy-consuming processes. The key is a recently discovered type of bacteria that can munch ammonia without oxygen. So-called anammox bacteria short-cut the nitrogen cycle by converting ammonium directly into nitrogen gas.
One by-product of this process is methane, which Kuenen proposes to harvest and use as fuel. The team calculates that, far from consuming energy, the process could generate 24 watt-hours per person per day. “This is about trying to make waste water treatment plants completely sustainable, in the sense that they could even produce energy, which is not the case in present treatment facilities,” says Kuenen.
Technology Review: Blogs: arXiv blog: Microbial Life Found in Hydrocarbon Lake
Pitch lake, they say, is teaming with microbial life. They say that, on average, each gram of goo in the lake contains some 10^7 living cells.
These bugs are unlike anything we normally see on Earth. Analysis of gene sequences from these creatures show that they are single celled organisms such as archea and bacteria. They thrive in an oxygen-free environment with very little water, eating hydrocarbons and respiring with metals.
This may be the first time life has cropped up in hydrocarbon lakes on Earth’s surface but these kinds of creepy crawlies have previously reared their heads in hydrocarbon samples from subsea oil wells. Which is another reason they are of interest. Just how microbial organisms can degrade and process of oil reservoirs is poorly understood. A better understanding could lead to a number of advances in techniques for things like microbial remediation.
But the most exciting implication of this discovery is for the possibility of life on Titan. There is a growing sense that Titan may have all the ingredients for life: thermodynamic disequilibrium, abundant carbon-containing molecules and a fluid environment.
Wi-Fi key-cracking kits sold in China mean free Internet
The main piece of the kits, an adapter with a six-inch antenna that plugs into a USB port, comes with a CD-ROM to install its driver and a separate live CD-ROM that boots up an operating system called BackTrack. In BackTrack, the user can run applications that try to obtain keys for two protocols used to secure Wi-Fi networks, WEP (Wired Equivalent Privacy) and WPA (Wi-Fi Protected Access). After a successful attack by the applications, called Spoonwep and Spoonwpa, a user can restart Windows and use the revealed key to access its Wi-Fi network.