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Scientists Discover How to Make Robots Bounce on Water

Category: Robots
Posted on: December 11, 2007 4:56 PM, by Greg Laden

This makes a lot of sense to me. Since it is probably pretty easy to adapt any robot to live on water (a little duct tape, some rubber bands, and a bunch of plastic bags should do it), then we can let them live there ... on the sea ... where they will stop bothering us.

The way water striders walk on water was discovered years ago. The insect uses its long legs to help evenly distribute its tiny body weight. The weight is distributed over a large area so that the fragile skin formed by surface tension supports the bug on the water. However, the ability of water striders to jump onto water without sinking has baffled scientists, until now.

A team of researchers at Seoul National University, led by Ho-Young Kim and Duck-Gyu Lee, has finally answered that question. By using a highly water-repellent sphere, which mimicked the actions of the water strider's highly water-repellent legs, they were able to determine a small range of speeds at which the sphere or insect could hit the water and not sink.

[Source]

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