منابع مشابه
Cosmology and Physical Astronomy in Newton’s General Scholium
e General Scholium opens with Newton’s trenchant criticism of the idea that the planets are carried in a vortex of subtle maer, like leaves swirling in the eddies of a stream. With the demise of Ptolemaic astronomy, natural philosophers in the seventeenth century faced the challenge of developing an entirely new understanding of the nature and causes of celestial motions. Vortex theories held...
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The Springer-Praxis Popular Astronomy programme covers the latest observations, techniques and discoveries in astronomy, astrophysics and cosmology, selecting key topics designed to fire the imagination of keen astronomers everywhere. Many of the topics selected for titles in this programme are refreshingly new, and away from the accepted mainstream of titles published in this area. Topics inc...
متن کاملPopular astronomy.
The Springer-Praxis Popular Astronomy programme covers the latest observations, techniques and discoveries in astronomy, astrophysics and cosmology, selecting key topics designed to fire the imagination of keen astronomers everywhere. Many of the topics selected for titles in this programme are refreshingly new, and away from the accepted mainstream of titles published in this area. Topics inc...
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Pr in te d in th e U SA $4 .9 5 $7 .9 5 C A N LIGHT Wave description: The periodic oscillation of electric and magnetic fields in space. Characterized by the following: 1. Frequency of the oscillation, ν , measured in cycles per second (hertz). 2. Wavelength of the oscillation, λ, measured in meters. This is the distance from one peak to the next. • Wave equation: All light travels at a finite ...
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An enigmatic prediction of Einstein’s general theory of relativity are gravitational waves. With the observed decay in the orbit of the Hulse-Taylor binary pulsar agreeing within a fraction of a percent with the theoretically computed decay from Einstein’s theory the existence of gravitational waves was firmly established. Currently there is a worldwide effort to detect gravitational waves with...
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ژورنال
عنوان ژورنال: Nature
سال: 1889
ISSN: 0028-0836,1476-4687
DOI: 10.1038/039386a0