Tiny Robotic Crab Is So Small It Can Stand on the Edge of a Penny

Developed by researchers at Northwestern University, this tiny robotic crab is so small it can stand on the edge of a penny. Not the side of a penny, the EDGE. Now that’s small. So small there could be a whole army of them in your bed right now, and you wouldn’t even know it. Sweet dreams!

The robocrab is covered in a fine glass coating, which, thanks to the crab’s incredibly small size (it’s only half a millimeter wide), is able to be quickly heated using a laser, which then rapidly cools. When this is done in rapid succession, scanning the laser either left to right or right to left, the crab will walk in that direction at a rate of about half a body length per second. No word if it’s capable of pinching yet.

It’s only a matter of time until we’re all filled with tiny robotic crabs scuttling around inside us, monitoring our vitals and performing other medical tasks to make us live longer. And I’ll laugh and briefly ponder just how primitive technology was in the early 2020s while I blow out the candles on my 190th birthday cake.

[via TechCrunch]

Georgia Tech models swimming, cargo-carrying nanobots

Georgia Tech models swimming, cargocarrying nanobots

The nanobot war is escalating. Not content to let Penn State's nanospiders win the day, Georgia Tech has answered back with a noticeably less creepy blood-swimming robot model of its own, whose look is more that of a fish than any arachnid this time around. It still uses material changes to exert movement -- here exposing hydrogels to electricity, heat, light or magnetism -- but Georgia Tech's method steers the 10-micron trooper to its destination through far more innocuous-sounding flaps. Researchers' goals are still as benign as ever, with the goal either to deliver drugs or to build minuscule structures piece-by-piece. The catch is that rather important mention of a "model" from earlier: Georgia Tech only has a scientifically viable design to work from and needs someone to build it. Should someone step up, there's a world of potential from schools of tiny swimmers targeting exactly what ails us.

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Georgia Tech models swimming, cargo-carrying nanobots originally appeared on Engadget on Tue, 07 Aug 2012 02:44:00 EDT. Please see our terms for use of feeds.

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