Researchers find number of cracks in struck glass related to speed of projectile

(Phys.org) —A team of researchers from Aix-Marseille University in France has found that the number of cracks that appear in a pane of glass or other brittle material resulting from a projectile strike is related to the speed of the striking object. The team describes test trials, observations and results in their paper published in the journal Physical Review Letters.

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