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Mars

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Book Excerpt: ...does not measure the full extent of the variation in brilliancy. As the brightness of an illuminated body varies inversely as the square of its distance from the source of light, and as the total amount of light it reflects to an observer varies inversely as the square of his distance from it, it makes every difference in the apparent brilliancy of a body how the body is situated, both with regard to the source of light and with regard to the observer. Now it so chances that at the meetings of Mars with the ...

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Mars
2020, Hansebooks

ISBN-13: 9783337924423

Trade paperback

Mars
2018, Franklin Classics Trade Press

ISBN-13: 9780344178535

Hardcover

Mars
2018, Franklin Classics

ISBN-13: 9780342212804

Trade paperback

Mars
2018, Sagwan Press

ISBN-13: 9781376527728

Trade paperback

Mars
2016, Wentworth Press

ISBN-13: 9781372118098

Trade paperback

Mars
2016, Wentworth Press

ISBN-13: 9781372118104

Hardcover

Mars
2016, Wentworth Press

ISBN-13: 9781372761782

Trade paperback

Mars
2016, Wentworth Press

ISBN-13: 9781372761812

Hardcover

Mars
2015, Sagwan Press

ISBN-13: 9781296980931

Hardcover

Mars
2015, Andesite Press

ISBN-13: 9781298702982

Hardcover

Mars
2004, Kessinger Publishing, Whitefish MT

ISBN-13: 9781419132841

Trade paperback

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