Overview:Is there a fifth force in the Universe, or must we revise our ideas about time? Horizon visits the Rutherford High Energy Laboratory where an experiment is running to settle this, and talks to Dr. Lipman.
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First Air Date: Feb 04, 1964Last Air date: Aug 18, 2025Season: 61 SeasonEpisode: 1170 EpisodeRuntime: 60:14 minutesQuality: HDIMDb: 3.6 / 10 by 33 usersPopularity: 14.6851Language: en
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