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Étienne-Louis Malus
Étienne-Louis Malus (; ; 23 July 1775 – 23 February 1812) was a French officer, engineer, physicist, and mathematician. Malus was born in Paris, France and studied at the military engineering school at Mezires where he was taught by Gaspard Monge. He participated in Napoleon's expedition into Egypt (1798 to 1801). He was also a member of the mathematics section of the Institut d'Égypte. Malus became a member of the Académie des Sciences in 1810. In 1810 the Royal Society of London awarded him the Rumford Medal. His mathematical work was almost entirely concerned with the study of light. He studied geometric systems called ''ray systems'', closely connected to Julius Plücker's '' line geometry''. He conducted experiments to verify Christiaan Huygens's theories of light and rewrote the theory in analytical form. His discovery of the polarization of light by reflection was published in 1809 and his theory of double refraction of light in crystals, in 1810. Malus at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis-Léopold Boilly
Louis-Léopold Boilly (; 5 July 1761 – 4 January 1845) was a French painter and draftsman. A creator of popular portrait paintings, he also produced a vast number of genre paintings documenting French middle-class social life. His life and work spanned the eras of Ancien Régime, monarchical France, the French Revolution, the First French Empire, Napoleonic Empire, the Bourbon Restoration in France, Bourbon Restoration and the July Monarchy. His 1800 painting ''Un Trompe-l'œil'' introduced the term ''trompe-l'œil'' ("trick the eye"), applied to the technique that uses realistic imagery to create the optical illusion that the depicted objects exist in three dimensions, though the "unnamed" technique itself had existed in Greek and Roman times. Life and career Boilly was born in La Bassée in northern France, the son of a local wood sculptor. A self-taught painter, Boilly began his career at a very young age, producing his first works at the age of twelve or thirteen. In 1774 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
