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Apergy. Apergy is a fictitious form of anti-gravitational energy first described by Percy Greg in his 1880 sword and planet novel Across the Zodiac. John Jacob Astor IV used it in his 1894 science fiction novel A Journey in Other Worlds.
In the 6th century CE, the Byzantine Alexandrian scholar John Philoponus proposed the theory of impetus, which modifies Aristotle's theory that "continuation of motion depends on continued action of a force" by incorporating a causative force which diminishes over time.
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Feb 12, 2016 · Einstein proposed that an excited atom could return to a lower energy state by releasing energy in the form of photons in a process called spontaneous emission.
Mar 25, 2014 · Does antimatter behave the same way as matter under the influence of gravity, or does antimatter even fall up? One of the keys lies in free-fall experiments to measure the acceleration of gravity, g. These are notoriously difficult with charged particles, but first measurements on neutral antimatter have recently been made and there are plans ...
Gravity - The Basics - Copernicus published theory of heliocentricity in 1543. - Johannes Kepler first described the Laws of Planetary motion in early 1600’s. - Newton published the Universal Law of Gravitation in 1686. - - Gravity follows an inverse squared relationship with force and distance: F grav ~ 1/d2.
The moon is only a projectile circling around the Earth under the attraction of Gravity. Newton called this force "gravity" and determined that gravitational forces exist between all objects. Using the idea of Gravity, Newton was able to explain the astronomical observations of Kepler.
Aug 11, 2021 · Einstein’s theory of gravitation is expressed in one deceptively simple-looking tensor equation (tensors are a generalization of scalars and vectors), which expresses how a mass determines the curvature of space-time around it.
