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Re: Electrical Pendulum Drive (was Re: moon's synchronism)

At 00:32 3/21/98 -0500, you wrote:

... A change in inductance causes a marked change in current, so the
current rises with the approach of the bob. The current peaks however,
after the bob has passed the center of the solenoid. It is this
unbalanced force which maintains the pendulum in a strikingly simple way.

Whatcott


So the pendulum gets an effective "kick" only once during each period of
ITS oscillation (like manually pushing a swing);
... N'est-ce pas?

Bob Sciamanda

Non, ce n'est-pas le cas. Il y'en a deux pousses per foix,
et chacun contient plusiers de petits coups, il me semble.

(Not quite - there are two pulses per period, each consisting of
multiple taps at 120 Hz, I believe....)

Whatcott Altus