30 place 0 fresh

208 Scientists Crack the Case of 'Screeching' Scotch Tape

Slashdot
msmash @ Slashdot 3 place · today 12:00 EDT

Scientists Crack the Case of 'Screeching' Scotch Tape

The screeching sound that Scotch tape makes when you rip it off a surface -- that fingernails-on-a-chalkboard noise most people try not to think about -- is produced by shock waves from micro-cracks that travel across the peeling tape at supersonic speeds, according to a new paper published in Physical Review E.

Researchers led by Sigurdur Thoroddsen of King Abdullah University in Saudi Arabia used simultaneous high-speed imaging and synchronized microphones to capture both the propagating fractures and t

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