density Comparison Table

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density comparison table

Subject has definition

cosmic matter density The average number of fermions per unit volume of space throughout the universe. Since matter is depicted in general relativity as bending space, the value of the cosmic matter density, if known, could reveal the overall curvature of cosmic space. See critical density, omega.

critical density If the cosmological constant is assumed to vanish, then the critical mass density is that density which puts the universe just on the border between eternal expansion (open universe) and eventual collapse (closed universe).

nuclear density The density of an atomic nucleus (about 10¹⁴ g cm^-3).

Subject	has definition
cosmic matter density	The average number of fermions per unit volume of space throughout the universe. Since matter is depicted in general relativity as bending space, the value of the cosmic matter density, if known, could reveal the overall curvature of cosmic space. See critical density, omega.
critical density	If the cosmological constant is assumed to vanish, then the critical mass density is that density which puts the universe just on the border between eternal expansion (open universe) and eventual collapse (closed universe).
nuclear density	The density of an atomic nucleus (about 10¹⁴ g cm^-3).

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