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| | Ned Wright's Cosmology Tutorial |
 | | The tutorial is completely non-commercial, but tax deductible donations to UCLA are always welcome. |
 | | I do use high school algebra and geometry - courses required for admission to UCLA - but I have also included some animations [1, 2, 3, 4, 5, 6, 7], some Java applets [1, 2], and many illustrations in the tutorials, the ABC's of Distances, and the answers to some of the Frequently Asked Questions. |
 | | In addition to the cosmology tutorial, there is also a relativity tutorial and extensive discussions on the age, density and size of the Universe. |
| www.astro.ucla.edu /~wright/cosmolog.htm (3716 words) |
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