Wheel Made of 'Odd Matter' Spontaneously Rolls Uphill - Quanta Magazine

Physicists have solved a key problem of robotic locomotion by revising the usual rules of interaction between simple component parts.

The physicists also created an odd ball that always bounces to one side and an odd wall that controls where it absorbs energy from an impact.  The objects all stem from the same equation describing a… [+2900 chars]

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