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From: hardie@sask.UUCP (Peter Hardie )
Newsgroups: net.physics
Subject: Re: Re: Weird Gravitational effects at Lake Delton Wisconsin
Message-ID: <272@sask.UUCP>
Date: Fri, 30-Aug-85 18:18:29 EDT
Article-I.D.: sask.272
Posted: Fri Aug 30 18:18:29 1985
Date-Received: Sat, 31-Aug-85 01:42:17 EDT
References: <974@sphinx.UChicago.UUCP> <203@tekig5.UUCP> <155@rtp47.UUCP>
Organization: University of Saskatchewan, CANADA
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There is a similar weird "gravitational" effect somewhere in Scotland (it's
been years and years and I can't remember where) that is called a magnetic
hill. If you drive 'downhill', turn around and put the car in neutral,
it will then roll back 'uphill'.
As with all the other gravitational or magnetic effects mentioned it is 
actually a visual effect that makes the hill *look* as if it is sloping 'up'
when in fact it slopes 'down'.
I am sure that the same kind of illusion is at work at the one in Wisconsin.
I agree with Wayne Throop that if you were permitted to measure the platform
properly you'd soon find some anomolies in it. Perhaps next time you are
there you should try accidently dropping a marble or two on the floor
to see which way they roll.
It isn't so easy to confuse a marble as to what constitutes 'downhill'.
Marbles are also not impressed with the fact scientists have not bothered
themselves with the place. Some people would prefer to believe that there
is some gravitational or magnetic anomoly rather than accept that their
eyes are being fooled by a cleverly constructed illusion.
Pete
ihnp4!sask!hardie