Barometer experiment at Saint-Jacques-de-la-Boucherie
· Saint-Jacques-de-la-Boucherie, Paris, France
Wikimedia Commons · Public domain · file Pascal repeated the altitude-pressure experiment in Paris by carrying a barometer to the bell tower of Saint-Jacques-de-la-Boucherie, finding a measurable fall in the mercury column. The source places this replication in the 1648 sequence but does not provide a day or month. Coordinates mark the surviving Tour Saint-Jacques, the church's remaining tower.
