C. de Jager & M.G.J. Minnaert 
Solar Spectrum [PDF ebook] 
Proceedings of the Symposium held at the University of Utrecht 26-31 August 1963

Did the Universe have a beginning? Will it have an end? Or has it always been the same, never changing? This is the subject of cosmology; the study of the Universe, and this book provides a perfect i …

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General relativity and quantum mechanics have become the two central pillars of theoretical physics. Moreover, general relativity has important applications in astrophysics and high-energy particle p …

Olbers“ paradox states that given the Universe is unbounded, governed by the standard laws of physics, and populated by light sources, the night sky should be ablaze with light. Obviously this is no …