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It's pretty easy to cool down an overheating desktop computer with an extra fan, but what do you do if there's no air? That's the hurdle NASA's engineers are hoping to clear with a new prototype pump that the agency unveiled last week. The pinkie-sized instrument relies upon a technology known as electrohydrodynamic (EHD)-based thermal control, which uses electric fields to inject coolant through small vents on a thermal cold plate, before moving the extra heat to a radiator and spreading it far away from any temperature-sensitive areas. With no moving parts, the lightweight cooler uses only about half a watt of power and can be sized to work with small electric components or lab-on-a-chip devices. The challenge is to make sure that the pump can survive the vibrations of a rocket launch, though NASA will put it to the test during a rocket mission on June 9 and in 2013, when an EHD thermal cold plate will be placed on the  International Space Station . 

What's better than billions of transistors? Billions of miniature two-nanometer ones, leaving room for billions more. A team of researchers accomplished just that, using the quantum effect to shrink these semiconductors -- and set a new size record in the process -- while also managing to keep them operating at room temperature (note: that photo above is from a different team's study). The team of South Korean, Japanese, and British researchers at Chungbuk National University expect them to "enhance the capabilities of mobile electronic devices" -- a mighty vague claim if ever there was one. Not one for modesty, lead researcher Choi Jung-bum proclaims that it "effectively changes the paradigm of such devices." With no word on mass production, though, we'll just have to wait and see for ourselves how big of an impact these lilliputian circuits will have.  Yonhap News ,  Tech-Freak Stuff

It may not look like it, but that sleek black thing pictured above is actually a microscope. Designed by engineers at Germany's Fraunhofer Institute for Applied Optics and Precision Engineering IOF, this little guy boasts a 5.3mm optical length, rendering it slim enough to fit in the palm of your hand, yet powerful enough to deliver images at a scanner-like resolution of five micrometers, over a wide surface area. Fraunhofer's researchers achieved this balance by essentially tossing out the manual on traditional microscope design. Whereas most devices slowly scan areas and construct images on a piecemeal basis, this handheld uses several small imaging channels and a collection of tiny lenses to record equal sized fragments of a given surface. Unlike conventional scanner microscopes, all of these 300 x 300 square micrometer imaging channels are captured at the same time. With a single swipe, then, users can record 36 x 24 square mm shots of matchbox-sized objects, without even ...