Scientists crack the case of "screeching" Scotch tape
5 hours ago
- #Scotch tape
- #Physics
- #Triboluminescence
- Scotch tape produces screeching sounds due to micro-cracks propagating at supersonic speeds.
- Invented in 1930 by Richard Drew, Scotch tape was initially used in car manufacturing to prevent paint damage.
- Scotch tape gained popularity during the Great Depression for repairing items instead of replacing them.
- Peeling Scotch tape can produce light, a phenomenon known as triboluminescence, observed since the 17th century.
- Triboluminescence occurs in materials like diamonds and ceramics when crushed or scratched.
- Wint-O-Green Life Savers demonstrate triboluminescence, with sugar crystals and wintergreen oil producing visible sparks.