Search PDFBooksWorld

PDF Books in Astronomy Science


Modern cosmogonies

Modern cosmogonies

by Agnes M. Clerke

Of the sixteen chapters constituting this little work, thirteen have been published as a series, begun in Knowledge and continued in Knowledge and Illustrated Scientific News, and to the proprietors of those journals, for their courteous permission to reprint them, I offer my sincere thanks. Three additional chapters, equivalent to, though not iden..

Dante and the early astronomers

Dante and the early astronomers

by Mary Acworth Orr

Dante’s astronomy, therefore, is of wide and deep significance. To study its history is to learn a chapter in the development of the human intellect; to see the universe with his eyes is to know how it appeared, not only to his contemporaries but to men in many lands and many centuries. The system of Ptolemy was already a thousand years old when Da..

Astronomy and General Physics Considered with Reference to Natural Theology

Astronomy and General Physics Considered with Reference to Natural Theology

by William Whewell

The examination of the material world brings before us a number of things and relations of things which suggest to most minds the belief of a creating and presiding Intelligence. And this impression, which arises with the most vague and superficial consideration of the objects by which we are surrounded, is, we conceive, confirmed and expanded by a..

The Moon -  A Popular Treatise

The Moon - A Popular Treatise

by Garrett Putman Serviss

The reader familiar with astronomical literature will doubtless remark a certain resemblance between the plan on which this book is written and that of Fontenelle’s “Conversations on the Plurality of Worlds,” a French classic of the eighteenth century. The author freely acknowledges that it was the recollection of the pleasure which the reading of ..

Conversations on the Plurality of Worlds

Conversations on the Plurality of Worlds

by Bernard de Fontenelle

Whenever I have entered into conversation with any sensible woman on astronomy, I have always found that she had read Fontenelle's Plurality of Worlds; and that his book had excited her curiosity on the subject. As it has been so much read already, it must continue to engage attention: I therefore thought it would be useful to point out its faults;..

The World of Flying Saucers

The World of Flying Saucers

by Donald H. Menzel

Both as scientists and as devotees of science fiction, we have long been interested in space travel. When reports of unidentified flying objects began to increase in the years between 1947 and 1952, one of us (D.H.M.) collected and studied the limited information available about the sightings. He soon concluded (with a slight feeling of disappointm..

Comet Lore -  Halley's Comet in History and Astronomy

Comet Lore - Halley's Comet in History and Astronomy

by Edwin Emerson

Constantinople, the great capital of the Orient, which owes its name to this same Emperor Constantine, was lost to Christendom in the year 1453, when the Turks overran the great city with fire and sword. This event, it is recorded, was heralded by another appearance of a Comet. Three years later, when the Turks were about to descend upon Belgrade, ..

The Book of Stars

The Book of Stars

by Archie Frederick Collins

The stars are the friends of everyone who knows them. If you have never stood out in the open and watched the stars on a clear night, you have missed the most wonderful sight to be seen from this little old mud ball of ours, and my advice to you is not to let another night go by without making friends with the stars.By the stars I mean everything i..