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1 day ago · The primary difference between Ellis’ EBU and evolving models proposed by some other physicists (e.g. Muller 2016) is the role of quantum mechanical indeterminacy in defining the present moment (see Sect. 3). Problems with Muller’s theory are detailed elsewhere (e.g. Riggs 2019). However, it is philosophers who effectively began the ...
5 days ago · He proposed that invisible matter was lending its gravity to the situation. The evidence has grown and grown, and researchers now believe that 85 percent of the universe’s matter is hidden.
4 days ago · Is gravity weaker over distances of billions of light-years? Researchers try to find out the reason behind this possible glitch in the cosmos.
4 days ago · The term energy only came in general use at about 1860 and it took a decade or so before it replaced force. The entry on energy in the Encyclopaedia Britannica illustrates the changed popularity of the word. All that the 1842 edition had to say was this: ‘ energy, a term of Greek origin, signifying the power, virtue, or efficacy of a thing ...
4 days ago · (Dated: June 3, 2024) Christodoulou and Rovelli (CR) [1] have argued that a Bose et al.-Marletto-Vedral (BMV) exper-iment that confirmed the quantum nature of gravity would give laboratory evidence for a quantum superposition of spacetime geometries created in the course of the experiment.
2 days ago · A decade before Hubble made his observations, a number of physicists and mathematicians had established a consistent theory of an expanding universe by using Einstein field equations of general relativity.
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2 days ago · In 1905, Henri Poincaré proposed gravitational waves, emanating from a body and propagating at the speed of light, as being required by the Lorentz transformations and suggested that, in analogy to an accelerating electrical charge producing electromagnetic waves, accelerated masses in a relativistic field theory of gravity should produce ...
