Posted by wunhuanglo [ 65.6.121.123 ] on April 26, 2005 at 04:50:49:

In Reply to: Re:Smoky the Bear, says posted by GarMan on April 25, 2005 at 13:09:17:

I had a job in a US Gov't metallurgical laboratory when I was in school. They had a bench-mounted belt sander - very old and beautiful cast iron machine. The sander was vented into a 4" galvanized smokepipe vacuum line that ran up the wall about 10 feet then overhead about 40 feet until you lost sight of it.

One day I decided to put an edge on a knife using the belt sander. What I didn't know is that the guy who generally worked in that lab used the belt sander exclusively for magnesium.

All across the ceiling the bottom of the tin pipe glowed a brilliant orange - very impressive. Zinc dripped like condensation onto the floor. Ooops.

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