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Home > Jean Baptiste Biot


 

Jean-Baptiste Biot ( April 21 1774, ParisFebruary 3 1862, Paris) was a French physicist and mathematician who in the early 1800s studied the relationship between electrical current and magnetism (see Biot-Savart Law), as well as the polarisation of light passing through chemical solutions.

He was the first person to discover the unique optical properties of mica, and therefore the mica-based mineral biotite was named after him.

In 1804 he made a hot-air balloon ascent with Joseph Gay-Lussac to a height of five kilometres in an early investigation of the Earth's atmosphereEarth's atmosphere is the layer of gases surrounding the planet Earth and retained by the Earth's gravity. It consists of nitrogen (78. 1% by volume) and oxygen (20. 9%), with small amounts of argon (0. 9%), carbon dioxide (variable, but around 0. 035%),.

There is a small craterBiot is a small, bowl-shaped lunar crater located in the southern reaches of the Mare Fecunditatis. To the southeast is Wrottesley crater. Satellite craters By convention these features are identified on Lunar maps by placing the letter on the side of the on the MoonFor other moons in the solar system see natural satellite. For other uses see Moon (disambiguation). The Moon is the only natural satellite of Earth. It has no formal name other than "The Moon" although it is occasionally called Luna ( Latin for moon to d that is named for him.

See also:

Early flying machinesA listing of primarily pre Wright brothers flying machines and work, and a analysis of debates over early flying machines . Heavier than air flying machines included, as lighter than air machines are subject to much less controversy. The goal is to examin

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