When 2 + 2 = 3.999999999…

Name: When 2 + 2 = 3.999999999…
Uploaded: 2026-03-01T02:00:00+08:00
Description: Full video: https://www.youtube.com/watch?v=IM630Z8lho8 A common physics misconception is that you can simply add velocities together — but experiments in special relativity show that you can’t. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

986.1K views1 minMar 1, 2026Short

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Last observed 10/4/2026, 6:33:54 PM

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