Sand-Reckoner

Sand-Reckoner
Catalog # SKU3881
Publisher TGS Publishing
Weight 1.00 lbs
Author Name Archimedes, Thomas L. Heath
ISBN 10: 0000000000
ISBN 13: 0000000000000
 
$3.95
Quantity

Description

The
Sand-Reckoner


of
Archimedes

By
Archimedes
Translator: Thomas L. Heath


THERE are some, King Gelon, who think that the number of the sand is infinite in multitude; and I mean by the sand not only that which exists about Syracuse and the rest of Sicily but also that which is found in every region whether inhabited or uninhabited.

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Excerpt:

Again there are some who, without regarding it as infinite, yet think that no number has been named which is great enough to exceed its multitude. And it is clear that they who hold this view, if they imagined a mass made up of sand in other respects as large as the mass of the earth, including in it all the seas and the hollows of the earth filled up to a height equal to that of the highest of the mountains, would be many times further still from recognising that any number could be expressed which exceeded the multitude of the sand so taken.

But I will try to show you by means of geometrical proofs, which you will be able to follow, that, of the numbers named by me and given in the work which I sent to Zeuxippus, some exceed not only the number of the mass of sand equal in magnitude to the earth filled up in the way described, but also that of a mass equal in magnitude to the universe.

Now you are aware that 'universe' is the name given by most astronomers to the sphere whose centre is the centre of the earth and whose radius is equal to the straight line between the centre of the sun and the centre of the earth.




24 pages - 5½ x 8½ softcover - Print size, 12 point font


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