André-Marie Ampère
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André-Marie Ampère was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as electrodynamics. He made also important co
Engraving of Ampère by Ambroise Tardieu, 1825
Portrait of Ampère by an unknown artist
Essai sur la philosophie des sciences
Fluorine
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Fluorine is a chemical element; it has the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it
André-Marie Ampère
…of Ampère by Ambroise Tardieu, 1825 Born 20 January 1775 Lyon, Kingdom of France Died 10 June 1836 (aged 61) Marseille, Kingdom of France Known for Discovering fluorine Ampère's circuital law Ampère's force law Ampère's right hand grip rule Ampèrian loop model Monge–Ampère equation Avogadro–Ampère hypothesis Needle…
Liquid fluorine (F2 at extremely low temperature)
Fluorite: Pink globular mass with crystal facets
Fluorapatite: Long, prismatic crystal, dull in lustre, protruding, at an angle, from matrix of aggregate-like rock
Cryolite: A parallelogram-shaped outline with diatomic molecules arranged in two layers