Cosmic Vistas: A Popular History of Astronomy - download pdf or read online

By Biman Basu

ISBN-10: 8123739427

ISBN-13: 9788123739427

This publication is on celestial items and the way with advances in expertise, the telescope and different commentary instruments can exhibit the true nature of celestial our bodies just like the Moon, the planets and Milky approach and the way the options of remark have been sophisticated that can exhibit fuel clouds, quasars, pulsars and radiation.

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Sample text

So, except for the conception that the Earth is a sphere, the work of these early Greeks did not do much to change the then prevailing ideas about the universe. The idea of the Earth being at the centre also did not conflict with the daily observation of the motion of the celestial bodies across the sky. So, at least for the time being, the Earth continued to reign supreme as being the centre of the universe! C. His was also essentially an Earth-centred or 'geocentric' universe. He argued that humans could not inhabit a moving and rotating Earth without violating commonsense perceptions.

Between 1565 and 1572, he travelled viii COSMIC VISTAS Fig. 14: Tycho Brahe's famous quadrant, which he used for measuring the coordinates of the stars and planets. widely throughout Europe, studying and acquiring mathematical and astronomical instruments, including a huge quadrant, for making accurate astronomical observations. Tycho's scientific approach to astronomy was relatively new, PLANETARY PATHS 39 because the earlier studies of celestial bodies had been haphazard, mixed up with magic, superstition and mythology.

When observed over a period of several nights, the tiny moons of Jupiter appeared to change position in a manner that could be explained only by taking them to be satellites orbiting the mother planet, which appeared through the telescope as a disc. Galileo's analytical mind could immediately see a similarity between the moons of Jupiter and the planets orbiting the Sun in the solar system, as set out in the Copernican model. The second convincing proof of a Sun-centred system came from the observation that Venus showed phases like our Moon.

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Cosmic Vistas: A Popular History of Astronomy by Biman Basu


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