[{"id": 134983, "created": "2019-09-03T20:37:11.425952", "project_id": 379, "task_id": 74773, "user_id": 138, "user_ip": null, "finish_time": "2019-09-03T21:10:52.287991", "timeout": null, "calibration": null, "external_uid": null, "media_url": null, "info": {"other": "The first half-sentence is likely grammatically incorrect, as I do not have the first half.", "translation": "that lies in between and around the teeth to be removed with fine bone chisels or grinders.With this also goes the removal of the 10 or more millimeters deep pockets to effect a transition from a vertical to a horizontal atrophy. All this as already said in a small space and also limited to a time of approx. 1 1/2 hrs due to the local anaesthesia and disturbed by saliva flow and bleeding.\r\n\r\nNow some might think, that all this work might be useless, and the treatment of parodontosis, which has to be carried out with great care and conscientiousness, and therefore becomes quite costly, an affair for rich people, who can afford it. I would like to counter this with two arguments, namely experiences from my own practice. RoOundabout the year 1934, the first German health insurers negotiated contracts covering the Pa-treatment with us, which covered the entire cost. The insurance certainly did not do this for the sake of the dentist's pretty blue eyes, but for the realization that the higher one-time cost is basically cheaper than the repeated trips of their members to the doctor or dentist. And secondly please think yourself, what mighty horror is triggered, when it is revealed that one has parodontosis and will shortly lose all their teeth. There will probably a large share among yourselves, who will do anything possible, and not avoid any effort or cost to avoid removable dentures and keep their own teeth.\r\n\r\nEveryday Physicvs\r\n- Low- and High Tide -\r\n\r\nThe phenomena of low- and high tide are probably generally well known, to many even from their own observations. We know that the sea rises twice a day and then falls again, and that the movement of the sea level can amount to several meters. There is also no doubt that the Moon is connected to this motion.Low- and high tide do after all quite closely follow, with a certain delay, the movement of the Moon.\r\n\r\nHow is it possible, that the Moon can lift millions of hundredweights by considerable heights from a distance of approx. 585,000 km? And apart from that there are quite a few more unclear issues.\r\n\r\nHight tide always occurs, when the Moon is more or less at its highest point. One could believe that it attracts the water. At the same time however, there is also high tide at the opposite side of the Earth. Why does the water there move away from the Moon? And if the Moon attracts the water, why doesn't it attract the entire Earth?\r\n\r\nThe Moon oscillates around the Earth in a circle, and exactly like a stone, which you whirl around on a piece of thread, pulls at the center of its motion, which is our hand, the Moon pulls at the Earth. But hte visible thread between Moon and Earth is missing, but it is replaced by the more reliable bond of general gravitation of masses. This is one of the forces causing the tides.\r\n\r\nIt is not the only one, and cannot be that either; because no matter how weak it is, it would bring Earth and Moon closer together over time. But also here has been created a counterforce, which for"}}, {"id": 135301, "created": "2019-12-05T19:41:55.113999", "project_id": 379, "task_id": 74773, "user_id": 1957, "user_ip": null, "finish_time": "2019-12-05T20:39:46.628657", "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."}}]