Reader schwit1 writes about MicroTug, a team of six microrobots that weigh just 3.5 ounces (99 grams), and can move a car: Researchers at Standford University's Biomimetics and Dexterous Manipulation Lab have developed six miniature robots that have the pulling-power to move objects 2,000 times of their own body weight. The tiny robots and their inter-coordination are based on that of ants. The microrobot uses a special kind of glue on its feet that make them serve as sticky gecko toes. "Their new demonstration is the functional equivalent of a team of six humans moving a weight equivalent to that of an Eiffel Tower and three Statues of Liberty," said David Christensen, a graduate student who is one of the authors of "Let's All Pull Together: Principles for Sharing Large Loads in Microrobot Teams paper. Researchers' fascination with gecko adhesive is nothing new. In 2010, Stanford mechanical engineer Mark Cutkosky developed a Stickybot that could climb walls. A similar robot that could roll up on smooth as well rough surfaces was demonstrated by a group of researchers in Canada in 2011.
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