1584: "The Hafele–Keating Experiment" episode artwork

EPISODE · Mar 9, 2026 · 3 MIN

1584: "The Hafele–Keating Experiment"

from Interesting Things with JC · host JC

Interesting Things with JC #1584: "The Hafele–Keating Experiment" – In 1971 four atomic clocks boarded commercial airliners and circled the Earth. When they returned, the clocks no longer matched those on the ground. The difference was measured in billionths of a second and confirmed Einstein’s prediction that motion and gravity change time.

Episode metadata supplied by the publisher feed · Published Mar 9, 2026

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1584: "The Hafele–Keating Experiment"

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