A cloth-backed metallic gray adhesive that fixes anything worth saving. Oddly, it was not invented to seal ducts; developed the tape during World War II to keep moisture out of ammunition cases.
Silver Mettle
Three historical highlights that demonstrate duct tape鈥檚 universal impact.
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1940s:听USC students begin wrapping the campus鈥檚 Tommy Trojan statue to prevent UCLA vandals from trashing it before the rivals鈥 football games.
1970:听During a mission, the crew of Apollo 13 fashion two makeshift CO2 filters from duct tape to keep from asphyxiating. Two years later, Apollo 17 astronauts use it to repair the fender of a damaged lunar rover.
2003:听A 鈥渄uct-tape alert,鈥 issued by the Department of Homeland Security, advises citizens to seal windows in the event of a chemical or biological attack.听