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Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the...13 KB (1,606 words) - 17:31, 1 December 2024- In X-ray astronomy, quasi-periodic oscillation (QPO) is the manner in which the X-ray light from an astronomical object flickers about certain frequencies...7 KB (997 words) - 04:41, 6 December 2023
An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much...7 KB (708 words) - 21:34, 20 November 2024- Paul Richard Heinrich Blasius (9 August 1883 – 24 April 1970) was a German fluid dynamics physicist. He was one of the first students of Prandtl. Blasius...3 KB (265 words) - 06:01, 6 May 2024
- In physics, a superoperator is a linear operator acting on a vector space of linear operators. Sometimes the term refers more specially to a completely...5 KB (819 words) - 20:47, 2 December 2024
- Photoluminescence excitation (abbreviated PLE) is a specific type of photoluminescence and concerns the interaction between electromagnetic radiation and...4 KB (469 words) - 04:00, 22 July 2023
Aleksandr Alekseyevich Chernyshyov (Russian: Александр Андреевич Чернышёв; 21 August 1882 – 28 April 1940), anglicised Alexander Chernyshov, was an electrical...1 KB (59 words) - 20:53, 7 November 2024- In telecommunications, magneto-ionic double refraction is the combined effect of the Earth's magnetic field and atmospheric ionization, whereby a linearly...1 KB (176 words) - 23:22, 15 September 2024