| First is the seismoscope, which will merely detect and record the fact that there has been such a tremor. |
| The word seismoscope is a compound word from Greek consisting of the two words, seism and scope. |
| They would have been taught, and proudly, that almost 2,000 years ago an astronomer named Chang Heng invented the world's first seismoscope. |
| His seismoscope for registering earthquakes was apparently cylindrical in shape, with eight dragons' heads arranged around its upper circumference, each with a ball in its mouth. |
| In other words, a seismoscope is any instrument capable of calling attention only to an earth-shake. |
| An early seismic instrument called the seismoscope made no time record of ground oscillations but simply indicated that shaking had occurred. |
