theory

Merging Neutron Stars and Emerging Particle Tracks

New insights into neutron star matter: combining heavy ion experiments and nuclear theory

Artist’s rendering showing the simulation of the merger of two neutron stars (left) and the traces of emerging particles visible during a collision of heavy ions (right) which creates matter under similar conditions in the laboratory . Credit: Tim Dietrich, Arnaud Le Fevre, Kees Huyser; background: ESA/Hubble, Sloan Digital Sky Survey Combination of heavy ion …

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Spacetime Special Relativity Concept

Counting galaxies to solve a cosmological puzzle: putting the special theory of relativity into practice

The theory of relativity generally encompasses two interrelated theories of Albert Einstein: special relativity published in 1905 and general relativity published in 1915. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravity and its relationship to other forces in nature. The theory of relativity was …

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Apply the special theory of relativity, counting the galaxies

This image made from a composite of photos taken between September 2003 and January 2004 by the NASA/ESA Hubble Space Telescope shows nearly 10,000 galaxies in the deepest visible light image of the cosmos, covering billions of light years. Credit: NASA, ESA, S. Beckwith (STScI), HUDF team Scientists who study the cosmos have a favorite …

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Signal detection theory may be useful in characterizing cognitive fatigue in multiple sclerosis – Neuroscience News

Summary: The study reveals an association between signal detection theory, brain activation patterns and subjective state fatigue. In people with multiple sclerosis, greater effects of fatigue were observed. Source: Kesler Foundation Using signal detection theory, Kessler Foundation researchers deepened their understanding of the mechanisms of cognitive fatigue in a recent neuroimaging study comparing participants with …

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Neutral Hydrogen Gas in Galaxy AGC 114905

Controversial alternate gravity theory revived by new spin on galaxy rotation

By St. Andrews University May 24, 2022 Radio image of neutral hydrogen gas in the galaxy AGC 114905. Its inclination is estimated from the black ellipse, which fits the data better. Assuming the galaxy is circular when viewed from the front, this implies a moderate tilt of 32°. However, the new study suggests that the …

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