Science
A crack in tempered glass can travel at 3,000 mph
HERE’S THE INTERESTING PART
Dropping a wine glass feels like it happens in slow motion, but the physics of the break are violently fast. Once a crack begins in a piece of tempered glass, the fracture propagates through the material at over three thousand miles per hour. That is roughly mach four, meaning your drinking glass essentially went hypersonic just to inconvenience your evening.
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