Astronomy
The General Principle of Relativity
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Herbert Wildon Carr
The main purpose of this book is to show the historical relations of the new principle to the old philosophical problems and to the classica…
The Stratagems and The Aqueducts of Rome
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Sextus Julius Frontinus
Frontinus' Stratagems is a collection of examples of military stratagems from Greek and Roman history, which the author comments based on h…
Astronomy
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David Todd
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 ea…
Miscellanea Curiosa
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Edmond Halley
"The Royal Society is a Fellowship of many of the world's most eminent scientists and is the oldest scientific academy in continuous ex…
Our Atomic World
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C. Jackson Craven
This booklet is part of the "Understanding the Atom Series" published by the Division of Technical Information of the U.S. Atomic …