oscillating universe
71Islamic arts — Visual, literary, and performing arts of the populations that adopted Islam from the 7th century. Islamic visual arts are decorative, colourful, and, in religious art, nonrepresentational; the characteristic Islamic decoration is the arabesque.… …
72Rotating locomotion in living systems — A passive wheel Rotating locomotion encompasses two distinct modes of …
73Neutron-star oscillation — Asteroseismology studies the internal structure of our Sun and other stars using oscillations. These can be studied by interpreting the temporal frequency spectrum acquired through observations[1]. In the same way, the more extreme neutron stars… …
74Light — For other uses, see Light (disambiguation). Visible light redirects here. For other uses, see Visible light (disambiguation) …
75Main sequence — A Hertzsprung Russell diagram plots the actual brightness (or absolute magnitude) of a star against its color index (represented as B V). The main sequence is visible as a prominent diagonal band that runs from the upper left to the lower right.… …
76Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula …
77Proper motion — The proper motion of a star is its angular change in position over time as seen from the center of mass of the solar system.[1] It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree.[2] This contrasts with… …
78Lightning — This article is about the atmospheric electrical phenomenon. For other uses, see Lightning (disambiguation). See also: Lightning strike Lightning striking Atlanta, United States Lightning is an atmospheric electrostatic discharge (spar …
79Hypernova — For the rock band, see Hypernova (band). Eta Carinae, in the constellation of Carina, one of the nearer candidates for a future hypernova Hypernova (pl. hypernovae), also known as a type 1c Supernova, refers to an incredibly large star that… …
80Quantum tunnelling — In quantum mechanics, quantum tunnelling is a nanoscopic phenomenon in which a particle violates the principles of classical mechanics by penetrating a potential barrier or impedance higher than the kinetic energy of the particle.Razavy, Mohsen.… …
