Re: Unknown Apparatus (mercury)

[Matt Jusinski <mjusinski@YAHOO.COM>]

The binding post, block, and pins all ohm out as
common.  It certainly could be from a counter.  In any
event I'm not going to fill it with mercury to count a
pendulum swings.  I have optical gates for that.

We have been making and effort to get Hg out of our
classrooms.  This past year I've collected
mercury-containing devices from our HS science rooms.
About 100 thermometers, a dozen hygrometers, two nice
barometers. The chem storage will keep some as an
exhibit.

http://www.geocities.com/mjusinski/unknown.jpg

> > The grooved block is conductive???
> >
> > The two stubs on the backside are perhaps for
> physical mounting?
> > My guess would be that it's a mercury reservoir for
> a 'homeopolar generator'.
> > A conductive disk on a horizontal axis. The axle is
> one terminal and
> > the mercury pool is the other terminal. Put a
> magnetic field across

> > > http://www.geocities.com/mjusinski/unknown.jpg


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