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A robot that walks on water!
Sunday July 29, 2012 05:28:31 PM,
IANS
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Bejing: The first
bio-inspired microbot is capable of not just walking on water but
jumping up and down on the water's surface like the insect, a
study shows.
Qinmin Pan and colleagues from Harbin Institute of Technology and
the National Natural Science Foundation of China, reported a
number of advances toward tiny robots that can walk on water.
However, even the most advanced designs, including one from Pan's
team last year - can only walk on water. Pan noted that real water
striders actually leap, the journal Applied Materials & Interfaces
reported.
Pan's group looked for novel mechanisms and materials to build a
true water-striding robot, according to a Harbin Institute
statement.
Making a jumping robot is difficult because the downward force
needed to propel it into the air usually pushes the legs through
the water's surface.
Using porous, super water-repellant nickel foam to fabricate the
three supporting and two jumping legs, the group made a robot that
could leap more than 5.5 inches, despite weighing as much as 1,100
water striders.
In experiments, the robot could jump nearly 14 inches forward --
more than twice its own length -- leaving the water at about 3.6
miles per hour.
The study authors report that the ability to leap will make the
bio-inspired microrobot more agile and better able to avoid
obstacles it encounters on the water's surface.
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