Time dilation

Thirteen years ago, I started to make a series of videos featuring Gizmo the Pig and Poob. The goal was to explain some of the weird effects of special relativity in a way that you could understand with a minimum of background. I made two of these videos: one • Pigthagoras's Theorem about Pythagoras's theorem (all the background you really need) and one • The Moons of Jupiter a... about how we know that light-speed is finite. I never got around to making any more. In this third video, our intrepid heroes finally come face to face with the sanity-sapping madness of time dilation. If the message of the video is lost on you, just remember that: Poob is always right.

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If Poob has a million fans, then I am one of them. If Poob has ten fans, then I am one of them. If Poob has only one fan then that is me. If Poob has no fans, then that means I am no longer on earth. If the world is against Poob, then I am against the world.