Einstein's Relativity by Fred I. Cooperstock & Steven Tieu

Author:Fred I. Cooperstock & Steven Tieu
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

Fig. 5.6Pulsed radar signals are directed to Venus during superior conjunction. The echo timing is used as a confirmation of the effect of General Relativity

The signals bounced off the inner planets and the time delay of the echo was recorded back on Earth. The delay predicted by General Relativity was consistent with the observed time delay. Even greater accuracy was achieved using interplanetary space probes with transponders receiving the signal from the ground station, amplifying it and re-transmitting back to Earth with a known phase lag via the directional antennae of the space probes.

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