[{"id": 134916, "created": "2019-08-01T03:05:46.823084", "project_id": 379, "task_id": 74772, "user_id": 138, "user_ip": null, "finish_time": "2019-08-01T03:30:20.344830", "timeout": null, "calibration": null, "external_uid": null, "media_url": null, "info": {"other": "", "translation": "effects the maintenance of the original distance. It is like in the case of the Moon the momentum. It is the other active origin of the tide.\r\n\r\nMomentum requires a circular movement But here, none of the known motions of the Earth come into consideration, neither the rotation of the Earth around its own axis, nor the yearly rotation of the Earth around the Sun. Rather we are confronted by a third form of motion, of which we seldom hear.\r\n\r\nThis is most easily seen in the following example (with Fig. 1. and 2.) We attach two equally long ribbons to a hook and to each ribbon one weight of any magnitude. Now the ribbons are wound helically around each other (twisted). When that has gone far enough, the two weights are released. Immediately the double ribbon unwinds. The weights start to rotate. Like Earth and Moon, they both are subject to one single force acting on them. Even if in this case it is only the tension of the twisted ribbons, and not -- like in the case of Earth and Moon -- the general attraction between bodies of mass, the result is the same.\r\n\r\nBoth weights rotate. Both remain continuously on exact opposite sides. Finally the dimensions of the trajectories depend on the mass of the weights. If the weights are of equal mass, so the forces are also equal. Is one weighs twice as much as the other, its trajectory describes a circle of half the size etc.\r\n\r\nFrom all of this follows: not only does the Moon draw its circles through space, but Earth does exactly the same in exactly the same time. Both rotate, always on opposite sides, around a common central point and center of gravity. Similarly like the spheres of a dumbbell in Fig, 2 rotate around a common suspension point.\r\n\r\nNaturally the circle described by the Earth is much tighter than the Moon's trajectory, due to the much more weighted mass of the Earth. It is only 1/80 the latter. This way, the common center point is situated still inside the Earth's mass. (For simplicity, this shall not be considered here.) This motion now creates, like with any circular motion, momentum. This tries to displace the Earth from the center of its motion, and also from the Moon. Both bodies are situated on opposite points of their trajectories. The left-pointing arrows in Fig.4 indicate this effect."}}, {"id": 135300, "created": "2019-12-05T19:41:54.432468", "project_id": 379, "task_id": 74772, "user_id": 1957, "user_ip": null, "finish_time": "2019-12-05T20:38:38.558984", "timeout": null, "calibration": null, "external_uid": null, "media_url": null, "info": {"other": "", "translation": "which ensures the maintenance of the original separation. As in the moon, it is just centrifugal force, which is the other cause of high tides.\r\nCentrifugal force requires circular motion. However, in this case none of the known movements of the E\r\narth are responsible - neither the rotation of the Earth about its own axis, nor the annual rotation of the Earth around the sun. It concerns a third, less well-known movement of the Earth.\r\nThe following example (Figs.1,2) illustrates this. Two bands of equal length are attached to a hook and a weight is attached to each band. The bands are then twisted together. When they have been twisted far enough the bands are released; they unravel and the weights begin a circular motion. As in the sun and moon, the weights are subject to a single force acting on both. Even if in this case it is just the tension between the two bands - and not gravitational attraction as is the case for the sun and moon - the result is the same.\r\nBoth weights perform a circular motion, both are exactly opposed to one another. The dimensions of their orbits depend exactly on their weights. If they have identical weight the forces are identical. If one is twice as heavy as the other it describes a circle of half the size.\r\nThe upshot is: it is not just the moon which orbits through space; the Earth does exactly the same thing at the same time. Both rotate in opposition around a common centre of gravity. It\u00b4s a bit like the spheres in Fig.2 turning around their common suspension point.\r\nOf course, the much higher mass of the Earth means that its orbit is considerably tighter than that of the moon - only 1/80 of it. Their centre of gravity lies within the interior of the Earth. (This may be neglected for simplicity.) Centrifugal motion is caused by this motion, as for every circular motion. These forces attempt to force the Earth away from its centre of motion and away from the moon. Each body remains on opposing sides of their orbit. This effect is illustrated by the left-pointing arrows in Fig.4."}}]