Einstein's general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had not yet been carried out at the time the theory was first published. From the list below select experiments which verified the predictions of the theory after Einstein proposed it. Einstein's general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had not yet been carried out at the time the theory was first published. From the list below select experiments which verified the predictions of the theory after Einstein proposed it. In the mid-1970s, a hydrogen maser, carried by a rocket to an altitude of 10,000 km was compare to the frequency of the signal emitted from a similar maser on Earth, again to show that the pace of time depends on the strength of gravity. Experiments in 1959 with twin atomic clocks operating at different heights in a physics building verified the slowing of time in a stronger gravitational field. Observations of the eclipse of 1919 verified the bending of light by the Sun's mass. In 1976 radio signals from the Viking landers on Mars passing near the Sun were used to show the slowing of time in a gravitational field. The accuracy of GPS devices demonstrates that general relativity works, since corrections for the effects of general relativity are included in the software of all such devices, and the devices help us pinpoint our location on Earth with remarkable a