Einstein Got It Wrong About Brownian Motion, Physicists Claim

Albert Einstein said scientists would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, but physicist at the University of Texas say they have done so. In 1907, Einstein likely did not foresee a time when dust-sized particles of glass could be trapped and suspended in air by dual laser beam "optical tweezers." Nor would he have known that ultrasonic vibrations from a plate-like transducer would shake those glass beads into the air to be tweezed and measured as they moved in suspension. read more

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