Fri, 2018-12-14 06:56 — Raining Blood How fast does glass crack? - The Slow Mo Guys Video of How fast does glass crack? - The Slow Mo Guys I forgot to add a description! 5 Average: 5 (4 votes)
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(Short Spike)
I thort glass.
(Short Spike)
Glass breaks at the velocity of sound through glass.
Most typical glass materials end up with sound velocity of 2000 meters per second to 6000 meters per second.