Seismometer
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Seismometers are instruments that measure and record motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources. The word derives from the Greek , seismós, a shaking or quake, from the verb , seí , to shake; and , métron, measure. Seismograph is another Greek t...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Seismometers are instruments that measure and record motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources. The word derives from the Greek , seismós, a shaking or quake, from the verb , seí , to shake; and , métron, measure. Seismograph is another Greek term from seismós and , gráph , to draw. It is often used to mean seismometer, though it is more applicable to the older instruments in which the measuring and recording of ground motion were combined than to modern systems, in which these functions are separated. Both types provide a continuous record of ground motion; this distinguishes them from seismoscopes, which merely indicate that motion has occurred, perhaps with some simple measure of how large it was.
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