Oscar Bravo

Corrected entry: When Alexander travels into the future everything around him is moving at a fast pace but it is always daytime. Wouldn't the sunlight be flashing on and off really fast?

Correction: Yes and it does. A rapidly flashing light source (faster than about 10 flashes per second) appears as a continuous source due to persistence of vision. Incidentally, this is the very effect that makes motion pictures possible at all!

Oscar Bravo

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