Lee,
No I don't, I'll ask a building inspector friend when I next
see him.
Tom
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Hi All
How is a ball bearing made?
Background
Ever since man began to need to move things, he has used round rollers to make
the job easier. Probably the first rollers were sticks or logs, which were
a big improvement over dragging things across the ground, but still pretty hard
work.
Another interesting thing i happen to know about bearings:
Huge ball bearings are used under buildings to allow them to move, or actually
stay still, during earth quakes. A large cup, bigger than the ball by
quite a bit, is mounted on the foundation, and another inverted similar cup
on the
Tom, do you know if those buildings are on like a floating slab of
concrete? Lee
--
Beware of computerized fortune-tellers!
To listen to the show archives go to link
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or
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The Pod Cast address for the
