"Hale, Edward Everett - The Brick Moon Et. Al." - читать интересную книгу автора (Hale Edward Everett)story. The subscribers, of course, have a right to
know what became of their money. The astronomers may as well know all about it, before they announce any more asteroids with an enormous movement in declination. And experimenters on the longitude may as well know, so that they may act advisedly in attempting another brick moon or in refusing to do so. It all began more than thirty years ago, when we were in college; as most good things begin. We were studying in the book which has gray sides and a green back, and is called "Cambridge Astronomy" because it is translated from the French. We came across this business of the longitude, and, as we talked, in the gloom and glamour of the old South Middle dining-hall, we had going the usual number of students' stories about rewards offered by the Board of Longitude for discoveries in that matter,-- stories, all of which, so far as I know, are lies. Like all boys, we had tried our hands at perpetual motion. For me, I was sure I could square the circle, if they would give me chalk enough. But as to this business of the longitude, it was reserved for Q.[1] to make the happy hit and to explain it to the rest of us. brother Nathan is meant. One of his noms de plume was Gnat Q. Hale, because G and Q may be silent letters. I wonder if I can explain it to an unlearned world, which has not studied the book with gray sides and a green cambric back. Let us try. You know then, dear world, that when you look at the North Star, it always appears to you at just the same height above the horizon or what is between you and the horizon: say the Dwight School-house, or the houses in Concord Street; or to me, just now, North College. You know also that, if you were to travel to the North Pole, the North Star would be just over your head. And, if you were to travel to the equator, it would be just on your horizon, if you could see it at all through the red, dusty, hazy mist in the north, as you could not. If you were just half-way between pole and equator, on the line between us and Canada, the North Star would be half-way up, or 45@ from the horizon. So you would know there that you were 45@ from the equator. Then in Boston, you would find it was 42@ 20' from the horizon. So you know there that you are 42@ 20' from the equator. At Seattle |
|
© 2026 Библиотека RealLib.org
(support [a t] reallib.org) |