in it in a gaseous state. About it at great distances circle not only our earth, but certain kindred bodies called the planets. These shine in the sky because they reflect the light of the sun; they are near enough for us to note their movements quite easily. Night by night their positions change with regard to the fixed stars. It is well to understand how empty is space. If, as we have said, the sun were a ball nine feet across, our earth would, in proportion, be the size of a one-inch ball, and. at a distance of 323 yards ...
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in it in a gaseous state. About it at great distances circle not only our earth, but certain kindred bodies called the planets. These shine in the sky because they reflect the light of the sun; they are near enough for us to note their movements quite easily. Night by night their positions change with regard to the fixed stars. It is well to understand how empty is space. If, as we have said, the sun were a ball nine feet across, our earth would, in proportion, be the size of a one-inch ball, and. at a distance of 323 yards from the sun. The moon would be a speck the size of a small pea, thirty inches from the earth. Nearer to the sun than the earth would be two other very similar specks, the planets Mercury and Venus, at a distance of 125 and 250 yards respectively. Beyond the earth would come the planets Mars, Jupiter, Saturn, Uranus, and Neptune, at distances of 500, 1,680, 3,000, 6,000, and 9,500 yards respectively. There would also be a certain number of very much smaller specks, flying about amon
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1250grams, ISBN:
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Volume 1. This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. With usual stamps and markings, In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1900grams, ISBN:
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Seller's Description:
Volumes 1 & 2. This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Re-bound by library. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 3900grams, ISBN:
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Fine. Trade paperback (US). Glued binding. 684 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
New. Trade paperback (US). Glued binding. 684 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
This item is fairly worn, but continues to work perfectly. Signs of wear can include aesthetic issues such as scratches, dents, worn corners, bends, tears, small stains, and partial water damage. All pages and the cover are intact, but the dust cover may be missing, if applicable. Pages may include excessive notes and highlighting, but the text is not obscured or unreadable. Satisfaction Guaranteed.
