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Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
The Royal Observatory, Greenwich (formerly the Royal Greenwich Observatory or RGO), in London played a major role in the history of astronomy and navigation, and is best known as the location of the prime meridian. It is situated on a hill in Greenwich Park, overlooking the River Thames.<br/><br/> The observatory was commissioned in 1675 by King Charles II, with the foundation stone being laid on 10 August.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
Ole Christensen Rømer (25 September 1644 – 19 September 1710) was a Danish astronomer who in 1676 made the first quantitative measurements of the speed of light.
Christiaan Huygens (14 April 1629 – 8 July 1695) was a prominent Dutch mathematician and scientist. He is known particularly as an astronomer, physicist, probabilist and horologist.<br/><br/> Huygens was a leading scientist of his time. His work included early telescopic studies of the rings of Saturn and the discovery of its moon Titan, the invention of the pendulum clock and other investigations in timekeeping. He published major studies of mechanics and optics, and a pioneer work on games of chance.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
Taqi al-Din Muhammad ibn Ma'ruf al-Shami al-Asadi (Arabic: تقي الدين محمد بن معروف الشامي, Modern Turkish: Takiyuddin) (1526–1585) was an Ottoman Turkish Muslim polymath. He was the author of more than 90 books on a wide variety of subjects, including astronomy, clocks, engineering, mathematics, mechanics, optics and natural philosophy.<br/><br/> Taqi al-Din's method of finding coordinates of stars was reportedly more precise from his contemporary Tycho Brahe and Nicolas Copernicus. Brahe is thought to be aware of Taqi al-Din's work.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
This illustration by Louis Delaporte is one of dozens he produced during his two-year venture (1866-68) with the Mekong Exploration Commission sponsored by the French Ministry of the Navy, the intention of which was to lay the groundwork for the expansion of French colonies in Indochina. Traveling the Mekong by boat, the small French delegation voyaged from Saigon to Phnom Penh to Luang Prabang, then farther north into the uncharted waters of Upper Laos and China's Yunnan province, before returning to Hanoi in 1868 by foot, accompanied by porters and elephants.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.
World War One was to have a devastating impact on Russia. When World War One started in August 1914, Russia responded by patriotically rallying around Nicholas II.<br/><br/> Military disasters at the Masurian Lakes and Tannenburg greatly weakened the Russian Army in the initial phases of the war. The growing influence of Gregory Rasputin over the Romanov’s did a great deal to damage the royal family and by the end of the spring of 1917, the Romanovs, who had ruled Russia for just over 300 years, were no longer in charge of a Russia that had been taken over by Kerensky and the Provisional Government.<br/><br/> By the end of 1917, the Bolsheviks led by Lenin had taken power in the major cities of Russia and introduced communist rule in those areas it controlled. The transition in Russia over the space of four years was remarkable – the fall of an autocracy and the establishment of the world’s first communist government.
Galileo Galilei (15 Feb. 1564—8 Jan. 1642) was an Italian physicist, mathematician, philosopher and astronomer who played a pivotal role in establishing modern science at a time when contradiction of religion was considered heresy. It was as an astronomer that he was most controversial. Galileo developed telescopes that confirmed the phases of Venus, and the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), as well as sunspots.<br/><br/> In 1610, while a majority of philosophers and astronomers still subscribed to the geocentric opinion that the Earth was the centre of the universe, Galileo came out in support of Copernicus' heliocentric view that the Sun was at the center of the solar system.<br/><br/> Galileo's opinions were met with outrage and bitter opposition, and he was denounced to the Roman Inquisition. In February 1616, although he had been cleared of any offence, the Catholic Church nevertheless condemned heliocentrism as 'false and contrary to [Christian] Scripture' and forced Galileo to renounce his scientific conclusions.<br/><br/> However, in 1632, Galileo published 'Dialogue Concerning the Two Chief World Systems', in which he again defended heliocentrism. He was tried by the Inquisition, found 'vehemently suspect of heresy', forced to recant, and spent the rest of his life under house arrest.