The Boy S Playbook Of Science

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Reprint of the original, first published in 1866.

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Finally available, a high quality book of the original classic edition of The Boy's Playbook of Science. It was previously published by other bona fide publishers, and is now, after many years, back in print. This is a new and freshly published edition of this culturally important work by John Henry Pepper, which is now, at last, again available to you. Get the PDF and EPUB NOW as well. Included in your purchase you have The Boy's Playbook of Science in EPUB AND PDF format to read on any tablet, eReader, desktop, laptop or smartphone simultaneous - Get it NOW. Enjoy this classic work today. These selected paragraphs distill the contents and give you a quick look inside The Boy's Playbook of Science: Look inside the book: And here we understand why the moon appears to be black while passing before the sun; so also by moving the small globe about in various curves, it is shown why eclipses are only visible at certain parts of the earth's surface; and as it would take (roughly speaking) fifty globes as large as the moon to make one equal in size to our earth, the shadow it casts must necessarily be small, and cannot obscure the whole hemisphere of the earth turned towards it. ...In order to comprehend the difference between an annular and a total eclipse of the sun, it is necessary to mention the apparent sizes of the sun and moon: thus, the former is a very large body—viz., eight hundred and eighty-seven thousand miles in diameter; but then, the sun is a very long way off from the earth, and is ninety millions of miles distant from us; therefore, he does not appear to be very large: indeed, the sun seems to be about the same size as the moon; for, although the sun's diameter is (roughly speaking) four hundred times greater than that of the moon, he is four hundred times further away from us, and, consequently, the sun and moon appear to be the same size, and when they come in a straight line with the eye, the nearer and smaller body, the moon, covers the larger and more distant mass, the sun; and hence, we have either an annular, or a total eclipse, showing how a small body may come between the eye and a larger body, and either partially or completely obscure it.

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