Greatest Astronomers

Greatest Astronomers PDF

Author: R.S. Ball

Publisher: Prabhat Prakashan

Published: 2021-01-01

Total Pages: 212

ISBN-13:

DOWNLOAD EBOOK →

Since the very dawn of humankind, our species has looked out upon the cosmos in awe of the glory of the heavens above. While the spectacular views offered by our night sky haven’t changed a great deal over the eons, our understanding of them has. Knowledge of our universe has gradually expanded over the last few thousand years thanks to the efforts of astronomers through the ages. We know what we do about the universe today thanks to the discoveries of all of these astronomers whom are listed in this compilation.

Great Astronomers

Great Astronomers PDF

Author: Robert S. Ball

Publisher: BEYOND BOOKS HUB

Published: 2021-01-01

Total Pages: 274

ISBN-13:

DOWNLOAD EBOOK →

Great Astronomers is a book by Irish astronomer Robert Stawell Ball. Chapters include: Ptolemy; Copernicus; Tycho Brahe; Galileo; Kepler; Isaac Newton; Flamsteed; Halley; Bradley; William Herschel; Laplace; Brinkley; John Herschel; The Earl Of Rosse; Airy; Hamilton; Le Verrier; and, Adams.

The Hundred Greatest Stars

The Hundred Greatest Stars PDF

Author: James B. Kaler

Publisher: Springer Science & Business Media

Published: 2006-05-07

Total Pages: 239

ISBN-13: 0387216251

DOWNLOAD EBOOK →

While there are guides to the visible sky, this is the first book to encompass the most important stars known in the universe at a level accessible to the layperson. The noted astronomer James Kaler takes us on a tour of the 100 most interesting stars, describing their characteristics and importance in words and vivid pictures. James B. Kaler is an internationally recognized expert on stars and their formation. A professor of astronomy at the University of Illinois, he is the author of "Stars and Their Spectra" (Cambridge), "Stars" (Freeman/Scientific American Library), "Cosmic Clouds" (Freeman/Scientific American Library), and numerous articles for popular and professional astronomy magazines.

Astronomers

Astronomers PDF

Author: Connie Jankowski

Publisher: Capstone

Published: 2008-07

Total Pages: 22

ISBN-13: 075653965X

DOWNLOAD EBOOK →

Explores the lives and discoveries of noted astronomers from the fifteenth to the twenty-first century.

Great Astronomers

Great Astronomers PDF

Author: R S Ball

Publisher: CreateSpace

Published: 2015-03-16

Total Pages: 214

ISBN-13: 9781508885566

DOWNLOAD EBOOK →

It has been my object in these pages to present the life of each astronomer in such detail as to enable the reader to realise in some degree the man's character and surroundings; and I have endeavoured to indicate as clearly as circumstances would permit the main features of the discoveries by which he has become known.

Great Astronomers (Nicolaus Copernicus)

Great Astronomers (Nicolaus Copernicus) PDF

Author: Robert Ball

Publisher: CreateSpace

Published: 2015-04-30

Total Pages: 26

ISBN-13: 9781511971539

DOWNLOAD EBOOK →

Copernicus, the astronomer, whose discoveries make him the great predecessor of Kepler and Newton, did not come from a noble family, as certain other early astronomers have done, for his father was a tradesman. Chroniclers are, however, careful to tell us that one of his uncles was a bishop. We are not acquainted with any of those details of his childhood or youth which are often of such interest in other cases where men have risen to exalted fame. It would appear that the young Nicolaus, for such was his Christian name, received his education at home until such time as he was deemed sufficiently advanced to be sent to the University at Cracow. The education that he there obtained must have been in those days of a very primitive description, but Copernicus seems to have availed himself of it to the utmost. He devoted himself more particularly to the study of medicine, with the view of adopting its practice as the profession of his life. The tendencies of the future astronomer were, however, revealed in the fact that he worked hard at mathematics, and, like one of his illustrious successors, Galileo, the practice of the art of painting had for him a very great interest, and in it he obtained some measure of success. By the time he was twenty-seven years old, it would seem that Copernicus had given up the notion of becoming a medical practitioner, and had resolved to devote himself to science. He was engaged in teaching mathematics, and appears to have acquired some reputation. His growing fame attracted the notice of his uncle the bishop, at whose suggestion Copernicus took holy orders, and he was presently appointed to a canonry in the cathedral of Frauenhurg, near the mouth of the Vistula. To Frauenburg, accordingly, this man of varied gifts retired. Possessing somewhat of the ascetic spirit, he resolved to devote his life to work of the most serious description. He eschewed all ordinary society, restricting his intimacies to very grave and learned companions, and refusing to engage in conversation of any useless kind. It would seem as if his gifts for painting were condemned as frivolous; at all events, we do not learn that he continued to practise them. In addition to the discharge of his theological duties, his life was occupied partly in ministering medically to the wants of the poor, and partly with his researches in astronomy and mathematics. His equipment in the matter of instruments for the study of the heavens seems to have been of a very meagre description. He arranged apertures in the walls of his house at Allenstein, so that he could observe in some fashion the passage of the stars across the meridian. That he possessed some talent for practical mechanics is proved by his construction of a contrivance for raising water from a stream, for the use of the inhabitants of Frauenburg. Relics of this machine are still to be Been. The intellectual slumber of the Middle Ages was destined to be awakened by the revolutionary doctrines of Copernicus. It may be noted, as an interesting circumstance, that the time at which he discovered the scheme of the solar system has coincided with a remarkable epoch in the world's history. The great astronomer had just reached manhood at the time when Columbus discovered the new world. Before the publication of the researches of Copernicus, the orthodox scientific creed averred that the earth was stationary, and that the apparent movements of the heavenly bodies were indeed real movements. Ptolemy had laid down this doctrine 1,400 years before. In his theory this huge error was associated with so much important truth, and the whole presented such a coherent scheme for the explanation of the heavenly movements, that the Ptolemaic theory was not seriously questioned until the great work of Copernicus appeared. No doubt others, before Copernicus, had from time to time in some vague fashion surmised, with more or less plausibility, that the sun..