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Puy de Dôme

Puy de Dôme, extinct volcano of the Massif Central and the second highest peak (4,806 ft/1,465 m) of the Auvergne Mts., central France, W of Clermont-Ferrand. Crops are raised on the lower slopes; the highlands are used as pasturage. On its level summit (it has no crater) are a meteorological observatory and the ruins of a temple of Mercury. There Florence Périer conducted (1648), upon instructions of his brother-in-law, Blaise Pascal, the famous experiment that confirmed Torricelli's theory on air pressure (see Pascal's law).

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: French and Benelux Physical Geography

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