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Eddington experiment. The 29 May 1919 solar eclipse. The Eddington experiment was an observational test of general relativity, organised by the British astronomers Frank Watson Dyson and Arthur Stanley Eddington in 1919. The observations were of the total solar eclipse of 29 May 1919 and were carried out by two expeditions, one to the West ...
A plasma ball with filaments extending between the inner and outer spheres. A plasma ball, plasma globe, or plasma lamp is a clear glass container filled with noble gases, usually a mixture of neon, krypton, and xenon, that has a high-voltage electrode in the center of the container. When voltage is applied, a plasma is formed within the container.
Spaceship Earth is a dark ride attraction at the EPCOT theme park at the Walt Disney World in Bay Lake, Florida. The geodesic sphere in which the attraction is housed has served as the symbolic structure of EPCOT since the park opened in 1982. The 15-minute ride takes guests on a time machine -themed experience, demonstrating how advancements ...
Photosphere. The photosphere is a star's outer shell from which light is radiated. It extends into a star's surface until the plasma becomes opaque, equivalent to an optical depth of approximately ⁄, [ 1] or equivalently, a depth from which 50% of light will escape without being scattered. A photosphere is the region of a luminous object ...
Celestial spheres. The celestial spheres, or celestial orbs, were the fundamental entities of the cosmological models developed by Plato, Eudoxus, Aristotle, Ptolemy, Copernicus, and others. In these celestial models, the apparent motions of the fixed stars and planets are accounted for by treating them as embedded in rotating spheres made of ...
A retirement community in Massachusetts is hosting its own Olympic events this week, including a torch lighting ceremony, egg spoon race, axe throwing and more. Retirement community hosts its own ...
General relativity. Tests of general relativity serve to establish observational evidence for the theory of general relativity. The first three tests, proposed by Albert Einstein in 1915, concerned the "anomalous" precession of the perihelion of Mercury, the bending of light in gravitational fields, and the gravitational redshift.
The $1 million, 650-seat Starlight theater lounge was opened on October 1, 1976, replacing the one that had closed a year earlier. [351] [352] [353] According to the Las Vegas Sun in 1977, Argent Corporation "took out the best lounge in town at the Stardust, replaced it with a mini-main showroom, treated it as a lounge, over priced it, then ...
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