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Raffaello Magiotti (1597–1656) was an Italian astronomer, mathematician and physicist. Born at Montevarchi, he studied at Florence, and, having taken his vows, moved to Rome, following Cardinal Sacchetti. In 1636, he began to work at the Vatican Library.A pupil of Castelli in Rome, in 1638 he was Castelli's tip to Galileo as the candidate for the chair of Mathematics at Pisa. Well at home in the scientific community in the Papal city, Magiotti actively participated in Roman scientific debates, on which he provided detailed information to Galileo, with whom he was often in touch. During his life, Magiotti published only one work, entitled Renitenza dell’acqua alla compressione (Water's Resistance to Compression), which came out in 1648.

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  • Raffaello Magiotti (de)
  • Raffaello Magiotti (fr)
  • Raffaello Magiotti (it)
  • Raffaello Magiotti (en)
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  • Raffaello Magiotti (Montevarchi, province d'Arezzo, 5 septembre 1597 - Rome, 1656) est un physicien, un mathématicien et un astronome italien du XVIIe siècle, principalement connu pour ses travaux sur la non-compressibilité de l'eau. (fr)
  • Raffaello Magiotti (Montevarchi, settembre 1597 – Roma, 1656) è stato uno scienziato italiano. Questa Terra [Montevarchi] è stata culla di molti chiari uomini, tra i quali citerò il sacerdote Raffaello Magiotti, e il di lui fratello Lattanzio dottore in medicina che studiarono Geometria presso Galileo. Il primo di essi inoltre fu scolaro del padre Castelli e autore di una Lettera al Principe D. Lorenzo de' Medici stampata in Roma nel 1648 col titolo di: Renitenza certissima dell'acqua alla compressione. Raffaello Magiotti fu impiegato in qualità di scrittore nella Biblioteca Vaticana, dove lungo tempo dimorò consigliando Galileo a stampare specialmente i suoi Dialoghi. (it)
  • Raffaello Magiotti (* 5. September 1597 in Montevarchi (Provinz Arezzo, Toskana); † 1656 in Rom) war ein italienischer Physiker, Mathematiker und Astronom, der vor allem dafür bekannt ist, dass er die Inkompressibilität von Wasser beschrieben hat. 1656 starb Magiotti an der Pest. Zwei Jahre später versuchte Giovanni Alfonso Borelli im Auftrag Leopoldo de Medicis, Magiottis unveröffentlichte Manuskripte sicherzustellen, stellte aber fest, dass dessen Haus geplündert und die Schriften verloren waren. (de)
  • Raffaello Magiotti (1597–1656) was an Italian astronomer, mathematician and physicist. Born at Montevarchi, he studied at Florence, and, having taken his vows, moved to Rome, following Cardinal Sacchetti. In 1636, he began to work at the Vatican Library.A pupil of Castelli in Rome, in 1638 he was Castelli's tip to Galileo as the candidate for the chair of Mathematics at Pisa. Well at home in the scientific community in the Papal city, Magiotti actively participated in Roman scientific debates, on which he provided detailed information to Galileo, with whom he was often in touch. During his life, Magiotti published only one work, entitled Renitenza dell’acqua alla compressione (Water's Resistance to Compression), which came out in 1648. (en)
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  • Raffaello Magiotti (* 5. September 1597 in Montevarchi (Provinz Arezzo, Toskana); † 1656 in Rom) war ein italienischer Physiker, Mathematiker und Astronom, der vor allem dafür bekannt ist, dass er die Inkompressibilität von Wasser beschrieben hat. Er studierte in Florenz und trat in den Orden Santa Lucia della Chiavica ein. Um 1630 zog er auf Einladung des Kardinals Sacchetti nach Rom, wo er bald als Gelehrter in Mathematik, Medizin, Theologie und Literatur bekannt wurde. 1636 erhielt er eine angesehene Stelle als scrittore in der Vatikanischen Bibliothek.Dem Vorschlag Galileo Galileis und Benedetto Castellis, sich auf den Lehrstuhl für Mathematik an der Universität Pisa zu bewerben, folgte er nicht, um die intellektuell anregende römische Gesellschaft nicht zu verlassen. Magiotti beteiligte sich aktiv an den wissenschaftlichen Debatten in Rom, über die er detailliert an Galilei berichtete, mit dem er oft in Kontakt war. Magiotti spielte insbesondere eine wichtige Rolle bei den Forschungen, die den Barometerexperimenten Torricellis vorausgingen und ihnen zu einem großen Teil den Weg bereiteten. Er unterstützte die Heber-Experimente von (* um 1600; † 1643) um 1640, indem er in verschiedenen Briefen ausführliche Beschreibungen verfasste. In einem Brief an Mersenne von 1648 beschrieb er diese Zeit der Experimente und deckte auf, dass er Torricelli über die Versuche von Berti informiert hatte. Er schlug auch die Nutzung von Meerwasser vor, welches dichter als Süßwasser ist, und wies so den Weg zur wichtigen Verwendung von Quecksilber in Torricellis späteren barometrischen Versuchen. Magiotti veröffentlichte nur ein einziges Buch, das den Titel Renitenza certissima dell’acqua alla compressione (Der Widerstand des Wassers gegen Komprimierung) hatte und 1648 herauskam.Es war der erste Bericht über die Inkompressibilität des Wassers, die Magiotti fälschlich als absolut ansah, ebenso über die Ausdehnung und Zusammenziehung von Flüssigkeiten und Gasen (Wasser und Luft), die Temperaturänderungen unterworfen sind.Neben der Beschreibung verschiedener Thermometer enthält das Buch auch eine Illustration des Cartesischen Tauchers (Flaschentaucher, Kartesischer Teufel), dessen Entdeckung deswegen dem toskanischen Wissenschaftler zugeschrieben wird und nicht Descartes, nach dem er benannt ist. 1656 starb Magiotti an der Pest. Zwei Jahre später versuchte Giovanni Alfonso Borelli im Auftrag Leopoldo de Medicis, Magiottis unveröffentlichte Manuskripte sicherzustellen, stellte aber fest, dass dessen Haus geplündert und die Schriften verloren waren. Francesco Redi, den er 1650 kennenlernte, sagte über ihn: „Magiotti ist ein großer Weiser, und ich versuche mit ihm zusammen zu sein wann immer ich kann, weil ich jedes Mal etwas Schönes von ihm lerne.“ (de)
  • Raffaello Magiotti (1597–1656) was an Italian astronomer, mathematician and physicist. Born at Montevarchi, he studied at Florence, and, having taken his vows, moved to Rome, following Cardinal Sacchetti. In 1636, he began to work at the Vatican Library.A pupil of Castelli in Rome, in 1638 he was Castelli's tip to Galileo as the candidate for the chair of Mathematics at Pisa. Well at home in the scientific community in the Papal city, Magiotti actively participated in Roman scientific debates, on which he provided detailed information to Galileo, with whom he was often in touch. During his life, Magiotti published only one work, entitled Renitenza dell’acqua alla compressione (Water's Resistance to Compression), which came out in 1648. The text was the first report of the practical resistance to compression - which Magiotti mistakenly claimed to be absolute - of water at constant temperature, as well as the expansion and contraction of fluid media (water and air) subjected to changes in temperature. In addition to descriptions of various thermometers, the work also presents an illustration of the bell-jar divers, or "Cartesian devils", the discovery of which would then be attributed to the Tuscan scientist. Magiotti played a role in the context of experimentation which preceded, and to a large extent, prepared the way, for the torricellian barometric experiments. He assisted - giving full descriptions in various letters - in the syphon experiments performed by Gasparo Berti around 1640. In a letter to Mersenne from 1648, he recalled that happy experimental period, and revealed that he had told Torricelli about the tests performed by Berti. He also suggested the use of sea-water, which is more dense than fresh water, thus making possible the decisive choice of mercury in barometric experiments. He died of the plague in 1656. (en)
  • Raffaello Magiotti (Montevarchi, province d'Arezzo, 5 septembre 1597 - Rome, 1656) est un physicien, un mathématicien et un astronome italien du XVIIe siècle, principalement connu pour ses travaux sur la non-compressibilité de l'eau. (fr)
  • Raffaello Magiotti (Montevarchi, settembre 1597 – Roma, 1656) è stato uno scienziato italiano. Questa Terra [Montevarchi] è stata culla di molti chiari uomini, tra i quali citerò il sacerdote Raffaello Magiotti, e il di lui fratello Lattanzio dottore in medicina che studiarono Geometria presso Galileo. Il primo di essi inoltre fu scolaro del padre Castelli e autore di una Lettera al Principe D. Lorenzo de' Medici stampata in Roma nel 1648 col titolo di: Renitenza certissima dell'acqua alla compressione. Raffaello Magiotti fu impiegato in qualità di scrittore nella Biblioteca Vaticana, dove lungo tempo dimorò consigliando Galileo a stampare specialmente i suoi Dialoghi. (it)
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