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The wreck was breaking up under the severity of its deliverers. Hailstones, big and hard enough to charge a blunderbuss, smote the vessel; at every rotation of the waves these hailstones rolled about the deck like marbles. The hooker, whose deck was almost flush with the water, was being beaten out of shape by the rolling masses of water and its sheets of spray.
At the second one, where the thickness is 1½d, a rotation and a half is performed; at the third, two rotations and a half; and at each of these places the particles present their repelled poles to the lower surface of the film. They are therefore sent back to the eye, and produce there the impression of brightness.
Tidal friction, whether solar or lunar, tends to reduce the axial movement of the body it acts upon. But the separation of satellites depends according to the received view upon the attainment of a disruptive rate of rotation.
The rural school pupils can be made familiar with the best modes of planting and cultivating the various crops, and with the diseases and insect enemies which threaten them; the selection of seed; the rotation of crops, and many other practical things applying directly to their home life.
Or, as the law of rotation dictates, the barley whitens under the sun. Still, whether in the dry day, or under the dewy moonlight, the plain stretching from the water to the hills is never without perfume, colour, or song.
There was also the subject of rotation in office. Would this provisional governor-general himself be able to stand fast? Had not a man better temporize a while, and see what Ex-Governor-general Casa Calvo and Trudeau were going to do?
And, by carefully noting the amount of the shifting, the velocity of the planet's rotation can be computed. This is what was done by Belopolski in the case of Venus, with the result above noted.
We now know that in the torrid zone the trade-winds and the current of the tropics are in opposition to every motion of the waves in the direction of the earth's rotation. The productions of the new world cannot reach the old but by the very high latitudes, and in following the direction of the current of Florida.
Unless this apparent darkness changes from time to time, or shows some irregularity in its outline, it cannot indicate any rotation of the planet. The best time to scrutinize the sharp cusps will be when the planet is nearly on the line from the earth to the sun. The best hour of the day is near sunset, the half-hour following sunset being the best of all.
To those who were not familiar with the motions of the moon, they demonstrated that she possesses two distinct motions, the first being that of rotation upon her axis, the second being that of revolution round the earth, accomplishing both together in an equal period of time, that is to say, in twenty-seven and one-third days.
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