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By: David Brewster (1781-1868)

Book cover Martyrs of Science, or, the Lives of Galileo, Tycho Brahe, and Kepler

“The martyrs of Science” gives a brief biography of Galileo, Brahe and Kepler. These three men played a pivotal role in the scientific revolution during the early modern period. This book throws light upon their lives, their scientific achievements, adversities which they faced for their work and how they transformed the lives of the future generations forever. It also provides evidence which establishes that the work carried out by them are original irrespective of the claims by other men who tried in vain to rob them of their honor. The author highlights some of their fallacies which hindered their progress.

By: David Carpenter Knight

Book cover The Love of Frank Nineteen

By: David Eugene Smith (1860-1944)

Book cover The Hindu-Arabic Numerals

By: David Hilbert (1862-1943)

Mathematical Problems by David Hilbert Mathematical Problems

Lecture delivered before the International Congress of Mathematicians at Paris in 1900 and subsequently published in the Bulletin of the American Mathematical Society Vol. 8 (1902), 479-481.

By: David Lester Richardson (1801-1865)

Book cover Flowers and Flower-Gardens With an Appendix of Practical Instructions and Useful Information Respecting the Anglo-Indian Flower-Garden

By: David Lindsay (1876-1945)

A Voyage to Arcturus by David Lindsay A Voyage to Arcturus

A Voyage to Arcturus is a novel by Scottish writer David Lindsay, first published in 1920. It combines fantasy, philosophy, and science fiction in an exploration of the nature of good and evil and their relationship with existence. It has been described by critic and philosopher Colin Wilson as the "greatest novel of the twentieth century" and was a central influence on C. S. Lewis's Space Trilogy.

By: David Marshall Brooks (1902-1994)

The Necessity of Atheism by David Marshall Brooks The Necessity of Atheism

Plain speaking is necessary in any discussion of religion, for if the freethinker attacks the religious dogmas with hesitation, the orthodox believer assumes that it is with regret that the freethinker would remove the crutch that supports the orthodox. And all religious beliefs are "crutches" hindering the free locomotive efforts of an advancing humanity. There are no problems related to human progress and happiness in this age which any theology can solve, and which the teachings of freethought cannot do better and without the aid of encumbrances.

By: David R. Sparks

Book cover The Winged Men of Orcon A Complete Novelette

By: David Slowinski

Book cover The 32nd Mersenne Prime Predicted by Mersenne

By: David Todd (1855-1939)

Book cover Astronomy: The Science of the Heavenly Bodies

The progress of astronomy from age to age has been far from uniform—rather by leaps and bounds: from the earliest epoch when man's planet earth was the center about which the stupendous cosmos wheeled, for whom it was created, and for whose edification it was maintained—down to the modern age whose discoveries have ascertained that even our stellar universe, the vast region of the solar domain, is but one of the thousands of island universes that tenant the inconceivable immensities of space...

By: David Wendel Yandell (1826-1898)

Book cover Pioneer Surgery in Kentucky A Sketch

By: Dean Charles Ing

Book cover Tight Squeeze

By: Derek J. de Solla (Derek John de Solla) Price (1922-1983)

On the Origin of Clockwork, Perpetual Motion Devices, and the Compass by Derek J. de Solla (Derek John de Solla) Price On the Origin of Clockwork, Perpetual Motion Devices, and the Compass

By: Derrick Norman Lehmer (1868-1938)

Book cover An Elementary Course in Synthetic Projective Geometry

By: Desmond Winter Hall (1909-1992)

Book cover A Scientist Rises
Book cover Raiders Invisible

By: Dhan Gopal Mukerji (1890-1936)

Book cover Kari the Elephant

The adventures of an Indian boy and his beloved elephant. Born near Calcutta, Mukerji won the Newbury Medal for children's fiction.

By: Dick Purcell

Book cover Mr. Chipfellow's Jackpot

By: Don Berry

Book cover Sound of Terror

By: Don Thompson (1935-1994)

Book cover High Dragon Bump

By: Donald E. Westlake (1933-)

Book cover The Risk Profession
Book cover They Also Serve

By: Donald H. Berkebile

Book cover The 1893 Duryea Automobile In the Museum of History and Technology
Book cover Conestoga Wagons in Braddock's Campaign, 1755

By: Donald Keyhoe (1897-1988)

Book cover Flying Saucers are Real

The Flying Saucers are Real is a book that investigates numerous encounters between USAF fighters, personnel, and other aircraft, and UFOs between 1947 and 1950. Keyhoe contended that the Air Force was actively investigating these cases of close encounter, with a policy of concealing their existence from the public until 1949. He stated that this policy was then replaced by one of cautious, progressive revelation. Keyhoe further stated that Earth had been visited by extraterrestrials for two centuries, with the frequency of these visits increasing sharply after the first atomic weapon test in 1945...

By: Donald W. Janes

Book cover Home Range and Movements of the Eastern Cottontail in Kansas

By: Donald Wandrei (1908-1987)

Book cover Raiders of the Universes

It was the 34th century and all five of the Federation of Planets around Sol were buzzing with their usual activity when the Raiders appeared. They were indeed Raiders of Universes because they had ravaged many systems before reaching Earth and showed no signs of slowing down in the least. Their weapons were invincible, their greed merciless and their natures completely alien. Indeed 'they' were from another dimension entirely. Eating up entire solar systems and planets, they slowed down just a bit when intelligent life was found on Earth...

By: Dorothy Mills

Book cover Book of the Ancient Greeks

An Introduction to the History and Civilization of Greece from the Coming of the Greeks to the Conquest of Corinth by Rome in 146 B.C. The spirit of a nation is expressed and its history is recorded in three ways: in its political history, in its literature and in its art. The aim of this book has been to use such parts of the political history of the Greeks, of their literature and of their art as seem to have been the outward and visible signs of the spirit that inspired them. - Summary from...

By: Douglas Blackburn (1857-1929)

Book cover The Detection of Forgery A Practical Handbook for the Use of Bankers, Solicitors, Magistrates' Clerks, and All Handling Suspected Documents

By: Douglas Dewar (1875-1957)

Book cover Birds of the Indian Hills
Book cover A Bird Calendar for Northern India

By: Douglas English (1870-1939)

Book cover "Wee Tim'rous Beasties" Studies of Animal life and Character

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