Can't push down the box-no push not to fall the sister, but there are not pushed down the box

When creating an object that can be moved without external force, the cube shape is usually not the shape people consider, but the circle. But some Swiss researchers do the opposite, creating a cube cubli that has no wheels on the surface but can move with its own power. Not only does it move, it can also keep balance or do other things ...

Cubli each side is almost 6 inches long and can be moved by its own continuous flip. If all facets can maintain their balance, it is not uncommon for it to "stand up" and maintain balance by using any of its own horns. The research team at the Institute of Dynamic Systems and controls at the Federal Institute of Technology in Zurich (ETH Zurich ' s Cato for Dynamic Bae and control) demonstrated its various actions in a video. And it even keeps its balance when the bottom side of the desktop is turned up and raised.

Although it is a moving cube, Cubli still needs to rely on a series of internally rotated wheels to generate driving forces. The three inner wheels that form a certain angle along different axes, each of which will rotate more quickly or more slowly in order to maintain sufficient power to keep the cube balanced. When a spinning wheel is quickly stopped, the cube can flip over as the force acts, so it can move around effectively. The Cubli rotating wheel system resembles a stable satellite in space, researchers say. And the research team has considered using the technology to develop robots to explore other planets.

The following video shows how it "stands up". It can also move from one side of the desktop to the other without external forces.