"Phil Kangas" wrote in message
...
Here's an interesting site concerning the experiments
done with plumb lines in the Tamarack Mine near
Calumet Michigan in 1901. This has been recognized
by the Guiness Book of world records just lately.
Metal content : this is a copper mine...............
Phil Kangas

http://www.lhup.edu/~dsimanek/hollow/tamarack.htm



I find it strange that the Chef Ingeneer (and owners) allowed a 4000' long
pipeline to be supendend only at the top ! ( it should snap !? )
They would make supension at every 30' ! The pipes are made to cary
something, maby liquid , that will make the pipe X times heavier !

.... but sometimes i like to be entertained by ufo's readings + + +

A.P.