When 2 + 2 = 3.999999999…
minutephysics
Feb 28, 2026 18:00
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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
Science & Technology
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