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When 2 + 2 = 3.999999999…

mBlip / 3 hours ago February 28, 2026

From “Minute Physics”. ( YouTube / Nebula )

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

February 28, 2026 in Minute Physics.

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