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Microrobot Developed at Dartmouth

Posted by samzenpus on from the everyone-likes-a-little-robot dept.

TheSync writes "Dartmouth researchers have developed the world's smallest untethered, controllable microrobot. The microrobot is much smaller and less massive than previous controllable microrobots. It measures only 60 by 250 micrometers. It receives power and control signals from the grid of electrodes it walks on, and moves by bending its body like a caterpillar. Not quite nanomachines, but we are getting closer!"

2 of 141 comments (clear)

  1. That's no robot. by mooncaine · · Score: 5, Informative

    It's a waldo. A robot is independent; a robot makes its own decisions, whether based on the environment or anything the programmers dreamed up. This device is "teleoperated", as the builders say. The word for such a thing is waldo, not robot.

  2. A football field by ran-o-matic · · Score: 4, Informative

    OK - They are 60 x 250 micrometers or .000060 x .000250 meters, so you get 66,666,666.66 of them per m^2. If you include the entire playing field (w/ end zones) an NFL football field is 360 ft. x 160 ft. or 57,600 ft^2 or ~5,351.215 m^2. So there are (if I haven't messed anything up!) ~356,747,673,600 (I carried the calculations at full precision and rounded the result, so your results might not be exactly the same as mine). I leave it as an exercise for the reader to calculate the number required for other sizes of fields.