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Physics: Record
JAY GORY, MANAGING EDITOR, science
Physicists have adapted a nanoelectric chip to drop to a temperature lower than three millikelvin—the closest anything’s ever gotten to absolute zero, believed by many experts to be the coldest temperature that can physically exist. Absolute zero refers to zero degrees Kelvin, which corresponds to -459.67 degrees Fahrenheit. At that threshold, particles—which vibrate with greater kinetic energy the hotter they become—come to a standstill, which is why scientists think nothing could ever become colder. read more


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