- EAN13
- 9780244903190
- ISBN
- 978-0-244-90319-0
- Éditeur
- Lulu
- Date de publication
- 08/05/2017
- Collection
- LLB.SCIENCES
- Nombre de pages
- 48
- Dimensions
- 21 x 14,8 x 0,3 cm
- Poids
- 73 g
- Langue
- français
- Fiches UNIMARC
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***Completely revised version of the original 1885 edition*** If we take a journey down the Chesapeake Bay, by night, we shall see the 'light' exhibited at Sharpe's Island for an hour before the steamer gets to it. We may take up a position on the deck so that the rail of the vessel's side will be in a line with the 'light' and in the line of sight; and we shall find that in the whole journey the light won't vary in the slightest degree in its apparent elevation. But, say that a distance of thirteen miles has been traversed, the astronomers' theory of 'curvature' demands a difference (one way or the other!) in the apparent elevation of the light, of 112 feet 8 inches! Since, however, there is not a difference of 100 hair's breadths, we have a plain proof that the water of the Chesapeake Bay is not curved, which is a proof that the Earth is not a globe.
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