Meaning of MONTGOLFIER, JOSEPH-MICHEL; AND MONTGOLFIER, JACQUES-ÉTIENNE in English

MONTGOLFIER, JOSEPH-MICHEL; AND MONTGOLFIER, JACQUES-ÉTIENNE

born Aug. 26, 1740, Annonay, France

died June 26, 1810, Balaruc-les-Bains

born Jan. 6, 1745, Annonay, France

died Aug. 2, 1799, enroute from Lyon to Annonay

French designers of the hot-air balloon .

The brothers discovered that heated air collected in a lightweight bag would cause the bag to rise. In 1783 they demonstrated their discovery with a balloon that rose 3,000 ft (1,000 m) and remained aloft 10 minutes. Later that year they sent a sheep, a duck, and a rooster up as passengers, and they followed that experiment with the first manned untethered balloon flight.

Britannica English dictionary.      Английский словарь Британика.