Computational scholars at Scientific Reports have completed the digital reconstruction of the 11th-century Siddhanta-Rahasya, a rare manuscript focused on natural phenomena. The analysis revealed that the text contains a series of sophisticated algorithms used to calculate the propagation velocity of seismic surface waves, predating similar concepts in Western geophysics by centuries.
The manuscript describes the use of stone resonators to detect ground vibrations and provides mathematical ratios for estimating the distance to an earthquake's epicenter based on wave arrival times. This research highlights the depth of ancient Indian physical sciences, specifically in the realm of acoustics and earth sciences applied to tectonic monitoring.