A seismometer is an instrument that records the shaking of the Earth's surface caused by seismic waves. The term seismograph usually refers to the combined seismometer and recording device. The first ...

The seismograph, Model EQ-1 (Next Generation Science), is located in a second floor classroom of the Julian Science and Mathematics Center. The unit is a horizontal beam seismograph that is designed ...

It was while he was working on the University observatory grounds at Oak Ridge that Leet first conceived of a new application of the delicate seismograph. Noticing extraordinary vibrations ...