The simplest form of a seismograph is a simple pendulum.When the ground shakes,the base and the frame of the seismometer move with it,but the pendulum bob remains in place.thus,there is a relative motion between the bob and the sharing ground.A pen pen below the bob records this motion on a paper that is moved by a rotating Drum.The recording is the seismogram.The science that deals with the seismic waves is called seismology and earthquake scientists are called seismologists.Saturday 29 June 2013
how a Seismograph is work.
The simplest form of a seismograph is a simple pendulum.When the ground shakes,the base and the frame of the seismometer move with it,but the pendulum bob remains in place.thus,there is a relative motion between the bob and the sharing ground.A pen pen below the bob records this motion on a paper that is moved by a rotating Drum.The recording is the seismogram.The science that deals with the seismic waves is called seismology and earthquake scientists are called seismologists.
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