e/N-body problem

Information
has gloss	eng: The n-body problem is the problem of predicting the motion of a group of celestial objects that interact with each other gravitationally. Solving this problem has been motivated by the need to understand the motion of the sun, planets and the visible stars. Its first complete mathematical formulation appeared in Isaac Newton's Principia (the n-body problem in general relativity is considerably more difficult). Since gravity was responsible for the motion of planets and stars, Newton had to express gravitational interactions in terms of differential equations. An important fact, which Newton proved in the Principia, is that celestial bodies can be modelled as point masses.
lexicalization	eng: ''n''-body problem
lexicalization	eng: N-Body Problem
instance of	(noun) the path of an electron around the nucleus of an atom electron orbit, orbit

Meaning
Italian
has gloss	ita: Il problema degli n-corpi è uno dei problemi più fertili della fisica matematica ed è affrontato multidisciplinarmente (e per scopi diversi) dai fisici interessati alla meccanica celeste e alla fisica del sistema solare e dai matematici esperti di teoria del caos, sistemi non lineari e di sistemi dinamici.
lexicalization	ita: problema degli n-corpi
Russian
lexicalization	rus: Гравитационная задача N тел
lexicalization	rus: Гравитационная задача n-тел
Chinese
has gloss	zho: 多体问题是指找出已知初始位置、速度和质量的多个物体在经典力学情况下的后续运动。
lexicalization	zho: 多体问题

Media
media:img	N-body problem (3).gif