Last week our
English 105 class took a trip around campus. As a class we visited P211.T45,
the Friday Flyers, and the Foucault pendulum. This was a great experience. We
learned many things about each one of these important aspects of Clemson. My
favorite was probably the Foucault pendulum. This was my group's task to
research. Researching the pendulum was interesting to me because I have not
heard of anything like this before. I really did not even know this was on
campus even though I passed it many times. This shows just how little attention
we, college students, pay as we are walking around and getting to our classes.
The Foucault pendulum was created by Dr. Albert R. Reed who was a physics and
anatomy professor at Clemson University. The pendulum bob is balanced by turning
down a lead cylinder cast around a steel rod to a 9.5-inch diameter sphere.
This is capped with two brass hemispheres, the lower of which held a permanent
magnet. The magnet is a component of the kicker system designed to overcome the
damping of the swing. We also learned, on our field trip, that the pendulum
uses Faraday's Law. The precession rate can be calculated from apparent forces
in the rotating frame on the surface of the Earth. The swing plane should make
a complete rotation in 23.9/sin(latitude) hours. For Clemson’s latitude of 34.7
degrees, this is 42 hours. Typically, the precision rate for our pendulum is
about 36 hours. We all learned a great amount on this field trip and had fun
tricking people with our facts.
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