Optical tweezers: Avinash Kumar, who built the Mpemba effect apparatus and carried out the experiments under the guidance of John Bechhoefer, at work in the lab. (Courtesy: Prithviraj Basak) In 1963, ...
Scientists have announced the results of a decade-long quest to measure Newton’s gravitational constant, the force that keeps our feet on the ground and holds planets in orbit. The pursuit was more or ...
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