This patterning interacts with light in such a way that the object can right itself when perturbed, creating a restoring torque to keep it in the light beam.from Top Buzz News- News18.com https://ift.tt/2U3f1Fg
This patterning interacts with light in such a way that the object can right itself when perturbed, creating a restoring torque to keep it in the light beam.
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