Pierre de Rivaz
Encyclopedia
Pierre de Rivaz was a French clockmaker of the 18th century, from Saint-Gingolph
. He built a clock in 1740 that was powered by variations in air temperature and pressure, a type of Atmos clock
.
Saint-Gingolph
Saint-Gingolph is a small town situated on the south bank of Lake Geneva . It sits at the Franco-Swiss frontier, and is administratively divided into Saint-Gingolph, Switzerland and Saint-Gingolph, Haute-Savoie . Its name is derived from the eighth century saint Gangulphus, who is said to have...
. He built a clock in 1740 that was powered by variations in air temperature and pressure, a type of Atmos clock
Atmos clock
Atmos is the brand name of a mechanical clock manufactured by Jaeger-LeCoultre in Switzerland which does not need to be wound manually. It gets the energy it needs to run from temperature and atmospheric pressure changes in the environment, and can run for years without human intervention.Its...
.