- Physicists succeeded in freezing nanoparticles, 100 to 140 nanometers across, almost entirely into their lowest-energy quantum state, giving them effectively a temperature just a few millionths of a degree above absolute zero -- & fixing them in place with unearthly precision. https://www.quantamagazine.org/how-big-can-the-quantum-world-be-physicists-probe-the-limits-20210818/ 28 comments science
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