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Standing on the Subway

Son Robin has studied control theory; I wish I knew more about it, especially when I'm riding the Metro and try to stand without clinging to a pole or strap. Sudden surges of accelerations toss me back and forth. I react with a time delay, inevitably over-correct, and stagger. How to do better? Maybe some elementary principles of feedback loops and damping could let me feel less of an codger. Perhaps a tutorial, "The Old Fool's Brief Guide to Control Theory" would help. Has anybody written one?

^z - 2010-12-09