Francesco Maria Grimaldi

Francesco Maria Grimaldi

Infobox Scientist
name = Francesco Maria Grimaldi
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caption = Francesco Maria Grimaldi
birth_date = April 2, 1618
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death_date = December 28, 1663
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nationality = Italian
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field = mathematics
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known_for = free fall
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Francesco Maria Grimaldi (April 2, 1618 - December 28, 1663) was an Italian mathematician and physicist who taught at the Jesuit college in Bologna.

Between 1640 and 1650, working with Riccioli, he investigated the free fall of objects, confirming that the distance of fall was proportional to the square of the time taken.

In astronomy, he built and used instruments to measure geological features on the Moon, and drew an accurate map or "selenograph" which was published by Riccioli.

He was the first to make accurate observations on the diffraction of light (although by some accounts Leonardo da Vinci had earlier noted it [Guglielmo Libri, "Histoire des sciences mathematiques en Italie" (1840) [http://www.mmi.unimaas.nl/people/Veltman/books/contin/title.html] ] ), and coined the word 'diffraction'. Later physicists used his work as evidence that light was a wave, and Isaac Newton used it to arrive at his more comprehensive theory of light.

Grimaldi crater on the Moon was named after him.

Publications

*"Physicomathesis de lumine, coloribus, et iride, aliisque annexis" (published 1665)

References

External links

* [http://www.newadvent.org/cathen/07034a.htm Catholic Enyclopedia] article for Francesco Maria Grimaldi.


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  • Francesco Maria Grimaldi —     Francesco Maria Grimaldi     † Catholic Encyclopedia ► Francesco Maria Grimaldi     Italian physicist, b. at Bologna, 2 April, 1618; d. in the same city, 28 Dec., 1663. He entered the Society of Jesus, 18 March, 1632; and, after the usual… …   Catholic encyclopedia

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  • Grimaldi , Francesco Maria — (1618–1663) Italian physicist Grimaldi was born at Bologna, Italy, and became a Jesuit. In 1648 he became professor of mathematics at his order s college in his native city, where he acted as assistant to Giovanni Riccioli. His discovery of the… …   Scientists

  • Francesco — may refer to:* Francesco Sforza, (1401 1466), Italian condottiero and Duke of Milan * Francesco Berni, (1497 1536), Italian writer; * Antonio Francesco Grazzini, (1503 1584) Italian writer; * Francesco Primaticcio, 1504 1570) Italian painter,… …   Wikipedia

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  • Grimaldi — House of Grimaldi, Genoese family and rulers of Monaco.Grimaldi may also refer to: * Grimaldi, Calabria, town in Province of Cosenza, Calabria, Italy * Grimaldi (crater), a crater on the Moon * Grimaldi Industri AB, a Swedish holding company *… …   Wikipedia

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