Monday, September 19, 2005

Physics





This from Reuters:

Power-dressing Aussie leaves trail of destruction
Fri Sep 16, 2005 8:37 AM BST

SYDNEY (Reuters) - An Australian man built up a 40,000-volt charge of static electricity in his clothes as he walked, leaving a trail of scorched carpet and molten plastic and forcing firefighters to evacuate a building.

Frank Clewer, who was wearing a woollen shirt and a synthetic nylon jacket, was oblivious to the growing electrical current that was building up as his clothes rubbed together.

When he walked into a building in the country town of Warrnambool in the southern state of Victoria on Thursday, the electrical charge ignited the carpet.

"It sounded almost like a firecracker", Clewer told Australian radio on Friday.

"Within about five minutes, the carpet started to erupt."

Employees, unsure of the cause of the mysterious burning smell, telephoned firefighters who evacuated the building.

"There were several scorch marks in the carpet, and we could hear a cracking noise -- a bit like a whip -- both inside and outside the building", said fire official Henry Barton.

"We tested his clothes with a static electricity field metre and measured a current of 40,000 volts, which is one step shy of spontaneous combustion, where his clothes would have self-ignited," Barton said.