Date: Sun, 17 Oct 1999 20:33:28 -0400

Author: Dick Heckathorn

Subject: RE: Air-bearing Gyroscopes

Post:


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Greetings,

With the nylon bolt in the ball, the ball was no longer symmetrical. =
Thus there was this unbalanced mass around which the ball would rotate. =
As I write this, I think the plans were taken from the Physics Teacher =
Magazine. Will check and get back. Dick
Helping teachers who teach, motivating students who learn.
"Science is nothing more than learning how to communicate with nature =
in such a manner that it will talk back."

-----Original Message-----
From: brian whatcott [SMTP:inet@intellisys.net]
Sent: Saturday, October 16, 1999 12:50 PM
To: tap-l@listproc.appstate.edu
Subject: RE: Air-bearing Gyroscopes

At 23:16 10/15/99 -0400, Dick Heckathorn wrote:
>Greetings,
>About 10 years ago, we bought some funnels and some pool balls that =
fit. I
have both. We drilled a hole in the pool ball, tapped it and screwed in =
a
nylon bolt. We attached a hose to an air source and the funnel. The
spinning pool ball would spin for 5 minutes. The funnel and pool ball =
are
at school. Will see if I can remember to measure the funnel and identify
its source. I will then send the info to you. Dick

I am eager to hear more too.
I had thoughts of a metal ball in a cup provided with an air supply.
If the cup was provided with three pairs of coils for induction drive,
and optical stripes for sensing its motions, it could be a poor man's=20
inertial nav that I had in mind.

Not quite sure of the purpose of the nylon bolt in your design?

Sincerely

Brian Whatcott
brian whatcott
Altus OK


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