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General astronomy
Industry: Astronomy
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General astronomy
Hubble Law
Astronomy; General astronomy
the relationship between a galaxy's recession speed from other galaxies and the distance between them: the recession speed = H × distance, where H is the Hubble constant. The recession speed is ...
hydrostatic equilibrium
Astronomy; General astronomy
a balance between the compression from the weight of material above a layer and the expansion of an outward-directed pressure below the layer. In normal stars and planet atmospheres, the ...
ideal gas law
Astronomy; General astronomy
the equation of state for simple gases: pressure = (k × density × temperature)/(molecular weight of the gas), where density is the mass density. If use number density (# particles/volume), pressure = ...
impact cratering
Astronomy; General astronomy
the process of creating round, bowl-shaped depressions on a surface by the explosion of a large body striking the surface.
inertia
Astronomy; General astronomy
the property of an object describing its tendency to stay at the same velocity (or at rest) unless a force acts on it.
inflation
Astronomy; General astronomy
a brief period of ultra-rapid expansion in the very early universe about 10-38 to 10-36 seconds after the Big Bang.
instrumentalism
Astronomy; General astronomy
a way of viewing scientific theories and models that says they are merely tools or calculation devices and are not to be interpreted as reality.
