22/09/2008

Robot wheelchair finds its own way

(PhysOrg.com) -- MIT researchers are developing a new kind of autonomous wheelchair that can learn all about the locations in a given building, and then take its occupant to a given place in response to a verbal command.

Disposable 'lab-on-a-chip' may save costs and lives

(PhysOrg.com) -- Low-cost, disposable cartridges that would let doctors perform diagnostic tests at the point-of-care could speed up diagnosis and treatment while lowering costs. European researchers are rapidly closing in ...

Mars polar cap mystery solved

(PhysOrg.com) -- Scientists are now able to better explain why Mars’s residual southern ice cap is misplaced, thanks to data from ESA’s Mars Express spacecraft - the martian weather system is to blame. And so is the largest ...

Modest CO2 cutbacks may be too little, too late for coral reefs

How much carbon dioxide is too much? According to United Nations Framework Convention on Climate Change (UNFCCC) greenhouse gases in the atmosphere need to be stabilized at levels low enough to "prevent dangerous anthropogenic ...

Ocean floor geysers warm flowing sea water

An international team of earth scientists report movement of warmed sea water through the flat, Pacific Ocean floor off Costa Rica. The movement is greater than that off midocean volcanic ridges. The finding suggests possible ...

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