Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

GR: Fachverband Gravitation und Relativitätstheorie

GR 14: Didactical Aspects of Relativity

GR 14.3: Vortrag

Donnerstag, 2. April 2020, 18:00–18:15, H-HS IV

Experiment for time comparison in moving and resting clocks — •Jordan Petrow — University of Rostock, Faculty of Mathematics and Natural Scienses, Wismarschestrasse 45, 18057 Rostock, Germany

With the mission "Gravity Probe B" in 2011 was found that the Earth rotates space around itself. The rotation of space around the Earth means that space is also rotated around our Sun and basically around every matter rotating in space. This principle is effective even in the smallest dimensions.Therefore atomic clocks may not be moved during a time measurement.There is the danger that its atomic clock generator becomes spatially deformed so that the atomic clock would show false times. If atomic clocks would be unsuitable for time measurement in moving systems, experiments are required that allow a direct time comparison between moving and stationary systems: On the outer edge of a rotating disk a circular hollow light guide is attached. Inside this light guide, light pulses are sent along the path and their propagation time is evaluated for various boundary conditions at rest and when the disk rotates. In this way it will be possible to directly compare the propagation times of the light pulses in the rotating part with their projection on the resting plane outside the rotating disk. Present activities aim at constructing the experimentally device.