History of Astronomy |
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Page 14
... studied astronomy in Egypt . He explained the return of the sun to the east each morning by its going under the flat earth in the night . He held that in a solar eclipse the moon hides the sun , and in a lunar eclipse the moon enters ...
... studied astronomy in Egypt . He explained the return of the sun to the east each morning by its going under the flat earth in the night . He held that in a solar eclipse the moon hides the sun , and in a lunar eclipse the moon enters ...
Page 17
... studied science in his travels in Egypt and elsewhere . He was held in so great reverence by all learned men that a problem which he set to the astronomers was the keynote to all astronomical investigation from this date . till the time ...
... studied science in his travels in Egypt and elsewhere . He was held in so great reverence by all learned men that a problem which he set to the astronomers was the keynote to all astronomical investigation from this date . till the time ...
Page 20
... studying astronomy . ( 3 ) In the Odyssey , Calypso directs Odysseus , in accordance with Phoenician rules for navigating the Mediterranean , to keep the Great Bear " ever on the left as he traversed the deep " when sailing from the ...
... studying astronomy . ( 3 ) In the Odyssey , Calypso directs Odysseus , in accordance with Phoenician rules for navigating the Mediterranean , to keep the Great Bear " ever on the left as he traversed the deep " when sailing from the ...
Page 24
... carried out in Germany by Müller , known as Regiomontanus , and Waltherus . Nicolai Copernicus , a Sclav , was born in 1473 at For definition see p . 18 . Thorn , in Polish Prussia . He studied at Cracow 24 THE GEOMETRICAL PERIOD.
... carried out in Germany by Müller , known as Regiomontanus , and Waltherus . Nicolai Copernicus , a Sclav , was born in 1473 at For definition see p . 18 . Thorn , in Polish Prussia . He studied at Cracow 24 THE GEOMETRICAL PERIOD.
Page 25
George Forbes. Thorn , in Polish Prussia . He studied at Cracow and in Italy . He was a priest , and settled at Frauenberg . ' He did not undertake continuous observations , but devoted himself to simplifying the planetary systems and ...
George Forbes. Thorn , in Polish Prussia . He studied at Cracow and in Italy . He was a priest , and settled at Frauenberg . ' He did not undertake continuous observations , but devoted himself to simplifying the planetary systems and ...
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accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulæ Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith