A seismoscope is an ancient instrument designed to detect and record earthquakes. The first known seismoscope was invented in 132 AD by the Chinese polymath Zhang Heng. It used a pendulum mechanism to sense ground movements and indicated the direction of an earthquake's epicenter through a series of bronze dragons. Modern seismoscopes have evolved significantly, utilizing advanced technology to measure vibrations in the Earth. These devices are crucial for studying seismic activity and help scientists understand the behavior of earthquakes, contributing to safety measures and preparedness in earthquake-prone regions.