From the 20th – 21st October, Giuseppe Cocchiararo and his team from Geo2x were on site. Geo2x are specialized in geophysics, particularly seismology, and were at EHL to provide an understanding of the physical properties of the subsurface earth. The team conducted geophysical experiments in order to measure the travel times of compressional waves generated by an impulsive energy source (either a hammer hitting the ground or a large weight being dropped mechanically). The difference in the time that it takes for the waves to be picked up by the geophones, which are dotted along the surface, allows us to infer the composition of the geological structures underground.

Ideally, when performing the experiments, all noise must be limited. This was particularly challenging with the considerable noise from the Route de Berne and the sound of students walking in high heels near the geophones.

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