Among the Forces - Henry White Warren (books for 8th graders TXT) 📗
- Author: Henry White Warren
Book online «Among the Forces - Henry White Warren (books for 8th graders TXT) 📗». Author Henry White Warren
comet's tail proves that other forces besides gravitation are operative in the interplanetary space.--_The Sun_, C. A. Young, p. 156.
[2]See _Recreations in Astronomy_, p. 357.
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[2]See _Recreations in Astronomy_, p. 357.
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Publication Date: 09-02-2009
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