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In physics, gravity (from Latin gravitas ' weight ' [1]) is a fundamental interaction primarily observed as a mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force, and 10 29 times weaker than the weak interaction.
As the human body consists mostly of fluids, gravity tends to force them into the lower half of the body, and our bodies have many systems to balance this situation. When released from the pull of gravity, these systems continue to work, causing a general redistribution of fluids into the upper half of the body.
The gravity anomaly, or "gravity hole", is centered southwest of Sri Lanka and Kanyakumari, the southernmost tip of mainland India, and east of the Horn of Africa.Due to weaker local gravity, the sea level in the IOGL would be up to 106 m (348 ft) lower than the global mean sea level (reference ellipsoid), if not for minor effects such as tides and currents in the Indian Ocean.
Before Newton's law of gravity, there were many theories explaining gravity. Philoshophers made observations about things falling down − and developed theories why they do – as early as Aristotle who thought that rocks fall to the ground because seeking the ground was an essential part of their nature. [6]
Saturn V Moon rocket just after launch and the gravity of Neptune where atmospheric pressure is about Earth's 1.14 g: Bugatti Veyron from 0 to 100 km/h in 2.4 s 1.55 g [b] Gravitron amusement ride 2.5–3 g: Gravity of Jupiter at its mid-latitudes and where atmospheric pressure is about Earth's 2.528 g: Uninhibited sneeze after sniffing ground ...
Attempts to generalize ordinary quantum field theories, used in elementary particle physics to describe fundamental interactions, so as to include gravity have led to serious problems. [193] Some have argued that at low energies, this approach proves successful, in that it results in an acceptable effective (quantum) field theory of gravity. [194]
[8] [13] Long years of continuous observation has found that the determination of even zonal, normalized gravity coefficient C l=2, m=0, and odd zonal, normalized gravity coefficient C l=3, m=0 are crucial for outlining the time-variable gravity due to such mass exchange, [24] [8] [31] [32] where is the degree while is the order.
In general terms, gravitational waves are radiated by large, coherent motions of immense mass, especially in regions where gravity is so strong that Newtonian gravity begins to fail. [58]: 380 The effect does not occur in a purely spherically symmetric system. [10] A simple example of this principle is a spinning dumbbell. If the dumbbell spins ...