منابع مشابه
Was There a Big Bang ?
CIENCE IS a congeries of great quests, and cosmology is the grandest of the great quests. Taking as its province the universe as a whole, cosmology addresses the old, the ineradicable questions about space and time, nature and destiny. It is not a subject for the tame or the timid. For the first half of the 20th century, cosmology remained a discipline apart, as a clutch of talented but otherwo...
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The tight correlation of galactic velocity distribution to both luminosity and black hole mass, the relation of halo parameters to luminous mass distribution can not be due to collapse dynamics. A baryonic big bang shell can solve galaxy formation problems by forming the supermassive black holes necessary to capture the initial blast wave in a coordinated pattern.
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The big bang-big crunch (BB-BC) algorithm is a popular metaheuristic optimization technique proposed based on one of the theories for the evolution of the universe. The algorithm utilizes a two-phase search mechanism: big-bang phase and big-crunch phase. In the big-bang phase the concept of energy dissipation is considered to produce disorder and randomness in the candidate population while in ...
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When considering possible time variations of fundamental physical constants one has to keep firm well established principles. Following this approach we keep firm the Action Principle, General Relativity (the Equivalence Principle), and Mach’s Principle. Also we introduce a new principle under the name of “TOTAL INTERACTION” and reconsider Weinberg’s relation with a new approach. Consistent wit...
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The light-like linear dilaton background represents a particularly simple timedependent 1/2 BPS solution of critical type IIA superstring theory in ten dimensions. Its lift to M-theory, as well as its Einstein frame metric, are singular in the sense that the geometry is geodesically incomplete and the Riemann tensor diverges along a light-like subspace of codimension one. We study this backgrou...
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ژورنال
عنوان ژورنال: Journal of Big History
سال: 2019
ISSN: 2475-3610
DOI: 10.22339/jbh.v3i1.3130