Information resources:

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  • beginning of A brief discussion of general relativity

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Miscellaneous:

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1,500,283 hits in April 2018!
over 83,333,000 hits to date!

Banner image: taken by Galileo in 1992 (credit: NASA/USGS).

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Last modified 5 May 2018.
Copyright © 2001-2017, 2018 by Wm. Robert Johnston. All rights reserved.