Truls Hellevik was forced through a 24-inch hole in 0.04 seconds
On November 5, 1983, Norwegian diver Truls Hellevik and four others died in an explosive decompression accident on the Byford Dolphin oil rig in the North Sea. When dive tender William Crammond prematurely opened the diving bell clamp by just 3 inches, the 9-atmosphere pressure differential created a catastrophic explosive event. Hellevik's ...