An old seismological station in Germany holds the history of the modern geophysics field.
He also argued that the Earth has a heavy iron core. Weichert invited many leading scientists in the field of geophysics to join him at the station. One of particular note was the German physicist namedMintrop was a dedicated student of Wiechert, he would also go on to be known as one of the founding figures of modern geophysics. He is most famous for his 1908 invention that can artificially produce earthquakes.
The collected data can then be used to determine the geological structure underneath the surface. His invention consists of a 14-meter tall steel scaffolding rig, from which a 4-ton steel ball was dropped into the bedrock of shell limestone below. Portable seismographs on site were then used to measure the seismic reactions of the ball dropping at various distances away from the fall site.
The data also allowed him to make a hypothesis about the exact nature of geological structures near the surface. Mintrop developed this technology and used it to form the geological exploration companyThe iron ball was later replaced by dynamite. This method of geological exploration is still used today by large oil companies to search for deposits of crude oil, natural gas, and other minerals. Mintrop’s original experiment site is still present at Hainberg, albeit with a few modern upgrades.
The ball is now raised up with an electric motor and has a remote release mechanism. But visitors to the seismic research center can still watch the experiment be carried out.
France Dernières Nouvelles, France Actualités
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