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Geminiano Montanari.
Geminiano Montanari.

Geminiano Montanari (June 1, 1633-October 13, 1687) was an Italian astronomer, lens-maker, and proponent of the experimental approach to science. Events 193 - Roman Emperor Didius Julianus is Assassinated 987 - Hugh Capet is elected Events 54 - Nero ascends to the Roman throne 409 - Vandals and Alans crossed the Pyrenees Italy (Italia officially the Italian Republic, (Repubblica Italiana is located on the Italian Peninsula in Southern Europe, and on the two largest Astronomy (from the Greek words astron (ἄστρον "star" and nomos (νόμος "law" is the scientific study A lens is an optical device with perfect or approximate Axial symmetry which transmits and refracts Light, converging or diverging

He is best known for his observation, made around 1667, that the second brightest star (called Algol in Arabic) in the constellation of Perseus varied in brightness. Algol (β Per / Beta Persei known colloquially as the Demon Star, is a bright Star in the Constellation Perseus. Arabic (ar الْعَرَبيّة (informally ar عَرَبيْ) in terms of the number of speakers is the largest living member of the Semitic language For other meanings see Perseus (disambiguation Perseus (ˈpɝsiːəs or /-sjuːs/ is a northern Constellation, named after the Greek It is likely that others had observed this effect before, but Montanari was the first named astronomer to record it. The star's names in Arabic, Hebrew and other languages, all of which have a meaning of "ghoul" or "demon", simply that its unusual behaviour had long been recognised. A ghoul is a Monster from ancient Arabian folklore that dwells in burial grounds and other uninhabited places In the Western world, earlier observers may have been inhibited from publishing by the insistence of the Christian church that the universe was immutable. Christianity ( Greek Χριστιανισμός from the word Xριστός ( Christ)is a monotheistic Religion centered on the life and teachings The Universe is defined as everything that Physically Exists: the entirety of Space and Time, all forms of Matter, Energy

Montanari was born in Modena, studied law in Florence, and graduated from the University of Salzburg. Modena (ˈmɔːdena Mòdna in Modenese dialect is a city and a Comune ( Municipality) on the south side of the Po valley, in the Law is a system of rules enforced through a set of Institutions used as an instrument to underpin civil obedience politics economics and society Florence ( Italian: Firenze Florentia and Fiorenza) is the Capital City of the Italian region of Tuscany The University of Salzburg, or Paris Lodron University ( German Universität Salzburg) after its founder the Prince Archbishop Paris Lodron is located In 1662 or 1663 he moved to Bologna, where he drew an accurate map of the Moon using an ocular micrometer of his own making. Bologna (boloɲa from Latin Bononia, Bulåggna in Bolognese dialect is the capital city of Emilia-Romagna in northern Italy An ocular micrometer is a glass disk that fits in a Microscope Eyepiece that has a ruled scale which is used to measure the size of magnified objects He also made observations on capillarity and other problems in statics, and suggested that the viscosity of a liquid depended on the shape of its molecules. Capillary action, capillarity, capillary motion, or wicking is the ability of a substance to draw another substance into it Statics is the branch of Mechanics concerned with the analysis of loads ( Force, torque/moment) on Physical systems in Static equilibrium Viscosity is a measure of the resistance of a Fluid which is being deformed by either Shear stress or Extensional stress. In Chemistry, a molecule is defined as a sufficiently stable electrically neutral group of at least two Atoms in a definite arrangement held together by In 1669 he succeeded Giovanni Cassini as astronomy teacher at the observatory of Panzano, near Modena, where one of his duties was to compile an astrological almanac. Giovanni Domenico Cassini ( June 8, 1625 &ndash September 14, 1712) was an Italian Mathematician, Astronomer An observatory is a location used for observing terrestrial and/or celestial events Campogalliano is a Comune (municipality in the Province of Modena in the Italian region Emilia-Romagna, located about 45 km northwest ALMANAC is the name of a major Breast cancer trial The Acronym stands for "Axillary Lymphatic Mapping Against Nodal Axillary Clearance He did so in 1665, but perpetrated a deliberate hoax by writing the almanac entirely at random, to show that predictions made by chance were as likely to be fulfilled as those made by astrology. In the period shortly after Galileo Galilei, experimentalists like Montanari were engaged in a battle against the more mystical views of scientists such as Donato Rossetti. Galileo Galilei (15 February 1564 &ndash 8 January 1642 was a Tuscan ( Italian) Physicist, Mathematician, Astronomer, and Philosopher A scientist, in the broadest sense refers to any person that engages in a systematic activity to acquire Knowledge or an individual that engages in such practices

On 21 March 1676 Montanari reported a sighting of a comet to Edmund Halley. Events 630 - Byzantine emperor Heraclius restores the True Cross to Jerusalem. A comet is a small Solar System body that orbits the Sun and when close enough to the Sun exhibits a visible coma (atmosphere or a tail — Edmond Halley FRS (ˈɛdmənd ˈhɔːlɪ ( November 8, 1656 &ndash January 14, 1742) was an English Astronomer

In 1679 Montanari moved to a teaching post in Padua, but almost all records of this period of his life have been lost. Padua ( Padova 'padova Latin: Patavium, Padoa) is a city in the Veneto, northern Italy. A letter survives from 1682 recording a sighting of Halley's Comet. Halley's Comet, officially designated 1P/Halley and also referred to as Comet Halley after Edmond Halley, is a Comet that can be seen every He also wrote on economics, observing that demand for a particular commodity was fixed, and making comments on coinage and the value of money (1683). Economics is the social science that studies the production distribution, and consumption of goods and services.

A crater on the Moon, at 45. Montanari is a lunar crater. It is located to the west-southwest of the prominent Tycho crater, and is attached to the southern rim of the Wilhelm 8S, 20. 6W, is named after him.

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