That means that by measuring the distortion of time and comparing it to the distortion of space, physicists can test the validity of general relativity. In general relativity, the distortions of time and space are predicted to be the same in other theories of gravity, this is not always the case. "However, the amplitude of the time distortion - how much the presence of a massive object slows down time - varies from theory to theory." "Time distortion exists in all modern theories of gravity," Bonvin said. Time distortion suggests that time is not absolute in our universe but rather passes at varying rates depending on gravitational fields.This idea is not exclusive to general relativity. ![]() The name is an homage to predictions about space-time made in Einstein's theory of relativity. When distant starlight bends around the gravity of a closer foreground object, it may make an 'Einstein ring' like this. … By measuring gravitational redshift, we obtain a measurement of the distortion of time." "As a consequence, the color of the light is changed it is shifted to red. "This climb changes the frequency of the light because time passes at different rates inside and outside of the gravitational well," she said. Bonvin said the difference here is that this technique measures redshift caused as light attempts to climb out of a gravitational well, a "dent" in space-time created by a massive object. The method suggests testing time distortion by measuring redshift, the change in the frequency of light an object emits as it moves away from us. ![]() We propose a method to measure the distortion of time at very large distances." "It has been measured for planes flying around the Earth, for stars in our galaxy, and also for clusters of galaxies. ![]() "Time distortion predicted by general relativity has already been measured very precisely at small distances," Camille Bonvin, lead study author and an associate professor at the University of Geneva, told Live Science via email.
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