| 21. | A basic example is mass density.
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| 22. | This appeared to confirm earlier intimations of a universe with a mass density too low to fit many theories.
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| 23. | Growing or shrinking " R " with time means expanding or collapsing universe, depending on the mass density inside.
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| 24. | Therefore the rate of diffusion of different gases is inversely proportional to the square root of their mass densities.
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| 25. | When combined with estimates of the stellar masses, this yields a mass density estimate of g / cm 3.
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| 26. | A typical mass density for a globular cluster is, which is 500 times the mass density near the Sun.
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| 27. | Knowing the mass density of the universe, in both ordinary and dark matter, is a critical issue in cosmology.
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| 28. | The first quantitative estimates of the mass density in supermassive black holes were 5-10 times higher than SoBtan's estimate.
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| 29. | So the Oort constants can tell us something about the mass density at a given radius in the disk.
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| 30. | A typical mass density for a globular cluster is, which is 500 times the mass density near the Sun.
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