Robots That Walk on Water

As if signing books and performing surgery on patients were not enough, robots can now walk on water, too, thanks to engineers at Carnegie Mellon University (CMU). What started as a class project three years ago ended up as insectlike mechanical robots with four to sixteen legs. The “bugs,” two to six inches long and weighing a few grams, can scoot over water, reports IEEE Transactions on Robotics. Called STRIDE, for surface tension based robotic insect dynamic explorer, the robots use water’s surface tension to amble on their spindly legs exactly like water striders, the insects that motivated the challenge.

Source: Scientific American.