Light-powered gyroscope is world's smallest: Promises a powerful spin on navigation

A new detection scheme that may lead to the world's smallest gyroscope has been uncovered by scientists. More than creative learning toys, gyroscopes are indispensable components in a number of technologies, including inertial guidance systems, which monitor an object's motion and orientation. Space probes, satellites, and rockets continuously rely on these systems for accurate flight control. But like so many other essential pieces of aerospace technology, weight is a perennial problem.



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