I’ve just finished a three‑month deep‑dive project that merges high‑density SNP data from the Illumina Infinium Global Screening Array v3.0 with a cus
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HungryHerring327• 5 karma
4 months ago
Newton's Cradle Explains Nothing
Everyone cites Newton's cradle as a 'momentum demo' but no one mentions it's a kinetic energy illusion. The math checks out only if you assume perfectly elastic collisions between identical masses. Which no real-world material achieves. Try replacing one steel ball with a rubber one and watch the 'laws of physics' vanish. Car crashes are a better example of kinetic energy transfer. No one cares about momentum there. What other textbook examples are just lab-idealized parlor tricks?
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