Lamont Doherty Observatory
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Lamont Doherty Observatory
Every year the Lamont – Doherty Earth Observatory holds an open house in which
scientists share their studies and really let the public see what and how they
do what they do. Scientists at this research center are working together
studying different fields of the Geologic sciences ranging from Oceanography,
Geochemistry, Seismology, and even Marine Biology share their findings with the
public. This year like every other year, they set up deferent exhibits and share
the current research, studies and illustrations of the different Geologic
processes along with their findings with anybody who is interested. For this
assignment, we were asked to describe five of the exhibits from the LDEO open
house. The five exhibits that called my attention the most were the Seismology,
Geochemistry, Oceanography, Demonstration of Hard and Soft behavior of the
surface of our, and the “Water Current Exhibit”. 1- Seismology in simple
terms is the study of earthquakes; it involves observations of natural ground
vibrations and artificial vibrations. In this exhibit, the scientists were
explaining how and earthquake forms and how it can be detected even hundreds of
miles away via a Seismograph. Someone asked the question what is an earthquake.
And the response was “well, it’s a trembling or shaking of the ground causes
by a sudden release of energy, energy that is stored in the rocks beneath the
surface”. I thought that was great so then, I asked how is this energy stored?
And his explanation was very well illustrated by a simple demonstration. There
sere two bricks joined together by a rubber band, at the end of the first brick
there was a nylon thread which was being pulled slowly. He said imagine these
two bricks are two plates floating on the mantle, as one moves slowly, it is
“pulling” the rubber band that is attached to the other brick and tension is
building over time then very sudden and quickly the rubber band pulls the brick
behind it, and this is how the energy builds up and then it is released quickly.
(Drawing of bricks) Then he had a Seismograph, a device that measures seismic
waves on a table and he was explaining how to read the intensity of the
vibrations. He had first one kid jumping in front of he seismograph, then two,
then three, then four and so one and one could see the intensity of the
vibrations being recorded by the seismograph. He also talked about the use of
seismic stations all over to monitors earthquakes and artificial vi...
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