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Dialogue Concerning The Two Chief World Systems
The ''Dialogue Concerning the Two Chief World Systems'' (''Dialogo sopra i due massimi sistemi del mondo'') is a 1632 Italian-language book by Galileo Galilei comparing the Copernican system with the traditional Ptolemaic system. It was translated into Latin as ''Systema cosmicum'' ( en, Cosmic System) in 1635 by Matthias Bernegger. The book was dedicated to Galileo's patron, Ferdinando II de' Medici, Grand Duke of Tuscany, who received the first printed copy on February 22, 1632. In the Copernican system, the Earth and other planets orbit the Sun, while in the Ptolemaic system, everything in the Universe circles around the Earth. The ''Dialogue'' was published in Florence under a formal license from the Inquisition. In 1633, Galileo was found to be "vehemently suspect of heresy" based on the book, which was then placed on the ''Index of Forbidden Books'', from which it was not removed until 1835 (after the theories it discussed had been permitted in print in 1822). In an acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accademia Dei Lincei
The Accademia dei Lincei (; literally the "Academy of the Lynx-Eyed", but anglicised as the Lincean Academy) is one of the oldest and most prestigious European scientific institutions, located at the Palazzo Corsini on the Via della Lungara in Rome, Italy. Founded in the Papal States in 1603 by Federico Cesi, the academy was named after the lynx, an animal whose sharp vision symbolizes the observational prowess that science requires. Galileo Galilei was the intellectual centre of the academy and adopted "Galileo Galilei Linceo" as his signature. "The Lincei did not long survive the death in 1630 of Cesi, its founder and patron", and "disappeared in 1651". During the nineteenth century, it was revived, first in the Vatican and later in the nation of Italy. Thus the Pontifical Academy of Science, founded in 1847, claims this heritage as the ''Accademia Pontificia dei Nuovi Lincei ("Pontifical Academy of the New Lynxes")'', descending from the first two incarnations of the Academy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phases Of Venus
The phases of Venus are the variations of lighting seen on the planet's surface, similar to lunar phases. The first recorded observations of them are thought to have been telescopic observations by Galileo Galilei in 1610. Although the extreme crescent phase of Venus has since been observed with the naked eye, there are no indisputable historical pre-telescopic records of it being described or known. Observation The orbit of Venus is 224.7 Earth days (7.4 avg. Earth months 0.4 days. The phases of Venus result from the planet's orbit around the Sun inside the Earth's orbit giving the telescopic observer a sequence of progressive lighting similar in appearance to the Moon's phases. It presents a ''full'' image when it is on the opposite side of the Sun. It is a ''gibbous'' phase when it approaches or leaves the opposite side of the Sun. It shows a ''quarter phase'' when it is at its maximum elongation from the Sun. Venus presents a ''thin crescent'' in telescopic views as it co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Frame Of Reference
In classical physics and special relativity, an inertial frame of reference (also called inertial reference frame, inertial frame, inertial space, or Galilean reference frame) is a frame of reference that is not undergoing any acceleration. It is a frame in which an isolated physical object — an object with zero net force acting on it — is perceived to move with a constant velocity (it might be a zero velocity) or, equivalently, it is a frame of reference in which Newton's laws of motion#Newton's first law, Newton's first law of motion holds. All inertial frames are in a state of constant, rectilinear motion with respect to one another; in other words, an accelerometer moving with any of them would detect zero acceleration. It has been observed that celestial objects which are far away from other objects and which are in uniform motion with respect to the Cosmic microwave background#Features, cosmic microwave background radiation maintain such uniform motion. Measureme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galileo's Ship
Galileo's ship refers to two physics experiments, a thought experiment and an actual experiment, by Galileo Galilei, the 16th and 17th century physicist and astronomer. The experiments were created to argue the idea of a rotating Earth as opposed to a stationary Earth around which rotated the Sun and planets and stars. An argument that was used at the time was that if the Earth were rotating, there would be detectable effects on the trajectories of projectiles or falling bodies. Ship's mast experiment In 1616, after Galileo had already become concerned that he was a target of suspicion by the Inquisition, he received a letter from Monsignor Francesco Ingoli listing both scientific and theological arguments against Copernicanism. As part of a lengthy 1624 reply, Galileo described the experiment of dropping a rock from the mast of a smoothly moving ship and observing whether the rock hit at the base of the mast or behind it. Various people had discussed the experiment in theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thought Experiment
A thought experiment is a hypothetical situation in which a hypothesis, theory, or principle is laid out for the purpose of thinking through its consequences. History The ancient Greek ''deiknymi'' (), or thought experiment, "was the most ancient pattern of mathematical proof", and existed before Euclidean mathematics, where the emphasis was on the conceptual, rather than on the experimental part of a thought-experiment. Johann Witt-Hansen established that Hans Christian Ørsted was the first to use the German term ' (lit. thought experiment) circa 1812. Ørsted was also the first to use the equivalent term ' in 1820. By 1883 Ernst Mach used the term ' in a different way, to denote exclusively the conduct of a experiment that would be subsequently performed as a by his students. Physical and mental experimentation could then be contrasted: Mach asked his students to provide him with explanations whenever the results from their subsequent, real, physical experiment differed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Gilbert (astronomer)
William Gilbert (; 24 May 1544? – 30 November 1603), also known as Gilberd, was an English physician, physicist and natural philosopher. He passionately rejected both the prevailing Aristotelian philosophy and the Scholastic method of university teaching. He is remembered today largely for his book ''De Magnete'' (1600). A unit of magnetomotive force, also known as magnetic potential, was named the ''Gilbert'' in his honour. Life and work Gilbert was born in Colchester to Jerome Gilberd, a borough recorder. He was educated at St John's College, Cambridge. After gaining his MD from Cambridge in 1569, and a short spell as bursar of St John's College, he left to practice medicine in London and travelled on the continent. In 1573, he was elected a Fellow of the Royal College of Physicians. In 1600 he was elected President of the college.Mottelay, P. Fleury (1893). "Biographical memoir". In He was Elizabeth I's own physician from 1601 until her death in 1603, and James ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benedetto Castelli
Benedetto Castelli (1578 – 9 April 1643), born Antonio Castelli, was an Italian mathematician. Benedetto was his name in religion on entering the Benedictine Order in 1595. Life Born in Brescia, Castelli studied at the University of Padua and later became an abbot at the Benedictine monastery in Monte Cassino. He was a long-time friend and supporter of his teacher, Galileo Galilei, and in turn teacher to Galileo's son. He assisted Galileo's study of sunspots and participated in the examination of the theories of Nicolaus Copernicus. Castelli was interested in mathematics and hydraulics. He was appointed as a mathematician to the University of Pisa, replacing Galileo, and later at the University of Rome La Sapienza. Castelli introduced Bonaventura Cavalieri to Galileo, leading to an extensive correspondence between the latter; Galileo was instrumental in procuring a position for Cavalieri at the University of Bologna in 1629. Castelli was involved in the discovery of the phase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cesare Cremonini (philosopher)
Cesare Cremonini (; 22 December 1550 – 19 July 1631), sometimes Cesare Cremonino, was an Italian professor of natural philosophy, working rationalism (against revelation) and Aristotelian materialism (against the dualist immortality of the soul) inside scholasticism. His Latinized name was Cæsar Cremoninus. or Cæsar Cremonius. Considered one of the greatest philosophers in his time, patronized by Alfonso II d'Este, Duke of Ferrara, corresponding with kings and princes who had his portrait, paid twice the salary of Galileo Galilei, he is now more remembered as an infamous side actor of the Galileo affair, being one of the two scholars who refused to look through Galileo's telescope. What is often not remembered is that "Cremonini’s reason for not trusting the telescope was that he had looked through one. The image confused and dizzied him. He inferred that only people with quirky eyesight and unrestrained imagination could see what Galileo had claimed to see." Biography ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lodovico Delle Colombe
Lodovico delle Colombe (1565(?) – after 1623) was an Italian Aristotelian scholar, famous for his battles with Galileo Galilei in a series of controversies in physics and astronomy. Early life Delle Colombe was born in Florence in the second half of the 16th century. A date of January 20, 1565 has been suggested, but the source for this is unknown. Likewise nothing is known of his family, except that he was of noble origin, or of his education. He became a member of the Accademia Fiorentina when Francesco Nori was its consul and was also a member of the Consiglio dei Dugento, the advisory body to the Grand Duchy of Tuscany. He was said to be tall and very thin with a long white beard, a little bald head and sunken eyes. He wore a fleece jacket and a large collar. Because of his appearance and his lonely and melancholy character he was nicknamed 'the Superintendent of Limbo' by the satirical poet Francesco Ruspoli. One of his brothers, Raffaello delle Colombe (1557–1627), w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simplicius Of Cilicia
Simplicius of Cilicia (; el, Σιμπλίκιος ὁ Κίλιξ; c. 490 – c. 560 AD) was a disciple of Ammonius Hermiae and Damascius, and was one of the last of the Neoplatonists. He was among the pagan philosophers persecuted by Justinian in the early 6th century, and was forced for a time to seek refuge in the Persian court, before being allowed back into the empire. He wrote extensively on the works of Aristotle. Although his writings are all commentaries on Aristotle and other authors, rather than original compositions, his intelligent and prodigious learning makes him the last great philosopher of pagan antiquity. His works have preserved much information about earlier philosophers which would have otherwise been lost. Life Simplicius was a disciple of Ammonius Hermiae, and Damascius, and was consequently one of the last members of the Neoplatonist school. The school had its headquarters in Athens. It became the centre of the last efforts to maintain Hellenistic religi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
