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Updated: May 21, 2025
I give you here only the more important parts of the paper as it was rewritten for the public prints: ... I am therefore strongly inclined to accept the theory advanced by Schiaparelli in 1882, in which he concluded that Mercury rotates on its axis once in eighty-eight days.
We have therefore in the earth and moon four movements, all taking place in the same direction, and this is also identical with that in which the sun rotates once every twenty-five days. Such a coincidence would be very unlikely unless there were some physical reason for it. Just as unlikely would it be that in tossing a coin five heads or five tails should follow each other consecutively.
According to the Copernican conception, however, only the moon rotates round the earth, whereas the apparent yearly progression of the sun is actually caused by the earth's motion round the sun. This raises the question of how far the Copernican, heliocentric aspect is valid in a science which strives to embrace the astral realm of the universe in its inquiries.
Yet, there is something else and infinitely more terrible. The moment the doctor will have said about you to your friends: “He is dead!” you will enter an immeasurable, illuminated space, and that is the space of the consciousness of your mistakes. You lie in the grave, in a narrow coffin, and your miserable life rotates about you like a wheel.
It never takes all the husk off a cocoa-nut that would be an unnecessary trouble but only enough off the end where the three eyelets are, to enable it to get at the inside. Having pierced the proper eye with one of its legs it rotates the nut round it until the hole is large enough to admit the point of its great claw, with which it continues the work.
It was asserted again and again that, if the earth rotates, a stone dropped from the top of a tower could not fall at the foot of the tower, since the earth's motion would sweep the tower far away from its original position while the stone is in transit.
Our moon, we know, rotates on its axis but once while it revolves about the earth, this being no doubt due to its own comparative smallness and the great attraction of the earth, which must have produced tremendous tides before the lunar oceans disappeared from its surface." In crossing the orbits of the satellites, they passed near Ganymede, Jupiter's largest moon.
In 1665 Cassini, with a fine telescope, 35-feet focal length, observed many spots moving from east to west, whence he concluded that Jupiter rotates on an axis like the earth. He watched an unusually permanent spot during twenty-nine rotations, and fixed the period at 9h. 56m. Jupiter's rapid rotation ought, according to Newton's theory, to be accompanied by a great flattening at the poles.
Once more I turn the spar, but now the needle falls to 0°, rising, however, again to 90° after a rotation of 360°. We know that in the case of light the extraordinary beam rotates round the ordinary one; and we have here been operating on the extraordinary heat-beam, which, as regards double refraction, behaves exactly like a beam of light. Magnetization of Heat.
Approximately 132 hours elapse between its rising and setting at any particular point on our planet, as a consequence of the fact that it revolves in 30 hours 18 minutes at a distance of 14,600 miles more or less from its primary; and as Mars rotates in 24 hours 37 minutes from East to West the motion is almost neutralized by the circulation of this satellite.
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