bubble convection

  • 81 Blue giant — For other uses, see Blue giant (disambiguation). Hertzsprung–Russell Diagram Spectral Type …

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  • 82 Gas exchange — or respiration takes place at a respiratory surface a boundary between the external environment and the interior of the body. For unicellular organisms the respiratory surface is Fick s law we can predict that respiratory surfaces must have: *a… …

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  • 83 Yellowstone Caldera — The northeastern part of Yellowstone Caldera, with the Yellowstone River flowing through Hayden Valley and the caldera rim in the distance …

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  • 84 Ice core — An ice core is a core sample from the accumulation of snow and ice over many years that have re crystallized and have trapped air bubbles from previous time periods. The composition of these ice cores, especially the presence of hydrogen and… …

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  • 85 Helium flash — A helium flash is the runaway fusion of helium in the core of low mass stars of less than about 2.25 solar masses and greater than about 0.5 solar mass, or on the surface of an accreting white dwarf star. They may also occur in the outer layers… …

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  • 86 Frederick W. Leslie — Infobox Astronaut name =Fred Weldon Leslie type =Astronaut nationality =American date birth =December 19, 1951 place birth =Ancón, Panama occupation =Scientist selection =1994 NASA Group time =15d 21h 34m mission =STS 73 insignia =|Fred Weldon… …

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  • 87 Pole star — For other uses, see Polestar (disambiguation). North Star redirects here. For other uses, see North Star (disambiguation). A French navisphere : a type of celestial globe formerly used for navigation at sea The term Pole Star usually refers to… …

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  • 88 Metallicity — The globular cluster M80. Stars in globular clusters are mainly older metal poor members of Population II. In astronomy and physical cosmology, the metallicity (also called Z[1]) of an object is the proportion of its matter made …

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  • 89 Scuba diving — Not to be confused with Self contained breathing apparatus, which describes breathing sets used out of water. Scuba diver Scuba diving ( SCUBA originally being an acronym for self contained underwater breathing apparatus, now widely considered a… …

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  • 90 Raghunath Anant Mashelkar — Infobox Scientist name = Raghunath Anant Mashelkar box width = image width = 200px caption = World renowned scientist birth date = January 1, 1943 birth place = Mashel, Goa death date = death place = residence = Pune citizenship = nationality =… …

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  • 91 Subgiant — This article is about the type of star. For the dance group, see Subgiant (band). Hertzsprung–Russell Diagram Spectral Type …

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  • 92 List of most massive stars — This is a list of the most massive stars so far discovered. The list is ordered by solar mass (1 solar mass = the mass of Earth s Sun). Stellar mass is the most important attribute of a star. Combined with chemical compositions, mass determines a …

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  • 93 OB star — LH 72 is one of the OB associations present in the Large Magellanic Cloud. OB stars are hot, massive stars of spectral types O or B which form in loosely organized groups called OB associations. They are short lived, and thus don t move very far… …

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  • 94 Bright giant — Hertzsprung–Russell Diagram Spectral Type Br …

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  • 95 Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …

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  • 96 Traditional Chinese star names — are the names of stars used in ancient Chinese literature, history, religion, mythology, folklore, Chinese opera and such methods of divination as astrology, horoscope (火羅) and Feng shui. Chinese star names sometimes consist of a Chinese… …

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  • 97 Orion variable — An Orion variable is a variable star which exhibits irregular and eruptive variations in its luminosity and is typically associated with diffuse nebulae. It is thought that these are young stars which will later become regular, non variable stars …

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  • 98 Lattice Boltzmann methods — (LBM) is a class of computational fluid dynamics (CFD) methods for fluid simulation. Instead of solving the Navier–Stokes equations, the discrete Boltzmann equation is solved to simulate the flow of a Newtonian fluid with collision models such as …

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  • 99 Instability strip — The Instability strip is a nearly vertical region in the Hertzsprung–Russell diagram which is occupied by pulsating variable stars (including RR Lyrae variable, Cepheid variable, W Virginis variable, ZZ Ceti variable, RV Tauri variable, Delta… …

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  • 100 List of most luminous stars — Below is a list of stars arranged in order of decreasing luminosity (increasing bolometric magnitude). Accurate measurement of stellar luminosities is quite difficult in practice, even when the apparent magnitude is measured accurately, for three …

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