2. The tiniest remote-controlled robot

In September 2005, researchers at the University of California in Berkeley created the tiniest mobile robot ever – narrower than a human hair. It is simply a sliver of silicon one hundredth of a millimetre thick. This can be precisely steered – like a remote controlled car – to move in any direction across the surface of a special plate. Powered by a grid of electrodes underneath a surface layer, the bot crawls around at a speed of about 200 micrometers per second and can push specks of dust, or other “dead” robots.

1. EcoBot II The fly-eating robot

Last, but not least, is the unlikely-sounding, fly-eating robot. EcoBot II, designed at the University of West England in Bristol, is part of a drive to make “release and forget” robots that can be sent into dangerous or inhospitable areas to carry out remote industrial or military monitoring.

To survive without human help, a robot needs to be able to generate its own energy. EcoBot ii can do just that, by catching flies and digesting them in a special reactor cell that generates electricity. The downside is that the robot will has to attract the hapless flies using a stinking lure concocted from human excrement.

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