Physicist Richard Feynman explains how a train stays on the tracks... From BBC TV 'Fun to Imagine' (1983) -YT
posted by cybrbeast 1 decade 4 years 11 months 3 weeks ago • 17,336 views • 2:27"what's d problem?" To expect the awful
Created: 1 decade 6 years 9 months ago
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Updated: 1 decade 2 years ago
Views: 20,241