18th-century Swiss physicists

The 18th century was a significant period for the development of physics in Switzerland, where several notable physicists made contributions to the field. Here are some key figures from that time: 1. **Albrecht von Haller (1708-1777)**: While primarily known as a physician and botanist, Haller's work also touched on aspects of physiology and mechanics, influencing both biology and physics.

Johannes Gessner is not widely known in contemporary contexts, and there might be some confusion regarding the name. One possibility is that you are referring to a historical figure, such as the Swiss mathematician and naturalist Johannes Gessner (1709–1790), who made contributions in the fields of mathematics, natural history, and geography.