brooke isabelle
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How long is a Planck length?
🕑 Added 2023-03-15 03:00:01 +0000 UTCThe Planck length is the scale at which classical ideas about gravity and space-time cease to be valid, and quantum effects dominate. This is the 'quantum of length', the smallest measurement of length with any meaning. And roughly equal to 1.6 x 10-35 m or about 10-20 times the size of a proton.
