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Feynman: How the train stays on the track FUN TO IMAGINE 7

Christopher Sykes · explainer · Watch on YouTube

Fundamental physicsEveryday physics & science demosTransit, cities & urban planning

What it is

A short clip from the 1983 BBC series Fun to Imagine in which Richard Feynman explains how a train stays on the track. He covers the geometry of tapered wheels that steer the train back toward the center of the rails.

Why Hacker News recommends it

HN people link it as Feynman's charming and clear explanation of why train wheels are tapered, whenever trains, bicycles or steering come up.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2013, last 2022

What HN commenters said

  1. “Lovely Feynman description of why train wheels are tapered.”

    adolph, 2022-09 · Recommendation · in “How mechanics keep 50-year-old BART trains running: Windows 98, eBay, and scraps”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: feynman, physics, railways, bbc, tapered wheels

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