A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 111
and towards the left in the southernhemisphere, so that they do not meet squarely in the centre of disturbance.d. The Ordinary Law of Wind-change; that is, in the northern hemispherethe north wind, under ordinary circumstances, changes to a northeast, anortheast wind to an east, east to southeast,… … Fig. 49. — Foucaults Gyroscope. It might seem at first that the rotation of the earth, which occupiestwenty-four hours, is not a very rapid motion. A point on the equa- SPHEROID FORM OF THE EARTH. 99 tor, however, has to move nearly one thousand miles an hour, whichis about fifteen hundred feet per…
Astronomy
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