Rotation of ground for the first time measured directly
Rotation of ground for the first time measured directly
Scientists are there for the first time in successful fix the rotatie of the ground directly. Them used for that a ring laser.
The movements of our ground are long not always the same. Among others gravitation of the sun and the maan influences these. The ground wobbles therefore a smattering. It is important that we are able the exact movements of our ground, fix because that leads also to for example exacter navigation systems.
Space
In the past the rotatie of the ground was always fixed by means of other space objects. Scientists looked at then to objects which `stipulated vaststonden’ in the universe and on that basis how the ground moved himself. That is welbeschouwd indirect measurings.
ring laser
Scientists are there now in successful measure the movements of the ground directly. Them developed for that the most stable ring laser ever. That was still complete does odd jobs. The laser could be influenced, as it happens, by nothing else then by the rotatie of the ground. For this reason the laser under the ground was placed. The temperature and busy was kept constant constant.
The ring laser. Photograph: Carl Zeiss/AG.Effort worth
But it has been all worth. Because the research workers have succeeded in the annual retrieving movement of the ground. And that tastes to more. The scientists want the ring laser still more precise make so that also changes which take place on one day measurable become. In the future we want be go able to the cellar and there to see how fast the ground at this moment twists, research worker explains Karl Ulrich Schreiber.
