from the power-of-the-fold dept.
rtoz writes Researchers from Seoul National University have designed a robotic wheel based on the origami "magic ball pattern," which is a traditional technique used to create folded paper spheres. This robotic wheel can change its radius to create larger wheels to climb over things, and shrink back to a smaller size to squeeze under obstacles. The diameter of the wheels changes automatically to enable the robot to either be strong or speedy. The scientists think their innovation could one day be used for interplanetary rovers as the wheel can be folded up and "inflate" itself.
Today's scientific question is: What in the world is electricity?
And where does it go after it leaves the toaster?
-- Dave Barry, "What is Electricity?"