Guillaume Amontons
Guillaume Amontons
1663-1705
French physicist who conducted the first serious research on air thermometers, showing experimentally that the pressure of a constant mass of air is directly proportional to temperature increases, and deducing from Mariotte's law that any volume of air expands by the same fraction for given temperature changes (1699). Deaf from an early age, Amontons established that friction is proportional to load, designed many instruments including a hygrometer (1687) and conical barometer (1695), and proposed water's boiling point as a thermometric fixed-point (1702).
More From encyclopedia.com
Dew Point , The dew point is that temperature below which the water vapor in a body of air cannot all remain vapor. When a body of air is cooled to its dew point… Air Mass , air mass(airmass) A large body of air (sometimes of oceanic or continental proportions) that is identified primarily by an approximately constant wet… Supersaturation , supersaturation The condition of air in which the humidity is above the level required for saturation at a given temperature (i.e. the relative humid… Humidity , Humidity is a measure of the quantity of water vapor in the air. There are different methods for determining this quantity and those methods are refl… Relative Humidity , rel·a·tive hu·mid·i·ty • n. the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temper… Isotherm , Isotherm
Isotherms are lines that connect points of equal temperature on weather maps, so at every point along a given isotherm the temperature value…
You Might Also Like
NEARBY TERMS
Guillaume Amontons