Did You Know?
Duct tape actually emerged from the trenches of World War II. GI's used the government issue sticky stuff to keep boots and ammo boxes dry, calling it "duck" tape for its ability to repel moisture. When soldiers brought the tape home after the war, the housing boom provided them with many uses for it, including holding together heating and cooling ducts. Thats when it became "duct" tape, though Duck Tape survives as a trademarked brand.
This Old House, January/February, 2003, page 20.