Retrieving "Charles Richter" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Seismology

   Linked via "Charles Richter"

   Early systematic observation of ground shaking dates back to the Han Dynasty in China, notably with the invention of the Zhang Heng's seismoscope around 132 CE. However, the quantitative science of seismology began developing in the late 19th century. The development of the modern seismograph, capable of recording ground motion in three orthogonal axes, allowed for the precise measurement of wave arrival times. Pioneers such as John Milne established …