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TMS Bicycle, stable without gyros or trail (TMS=two-mass-skate)

Arend Schwab · demo · Watch on YouTube

Fundamental physicsMechanical & precision engineeringEveryday physics & science demos

What it is

Arend Schwab demonstrates a research bicycle, the two-mass-skate design, that balances itself without gyroscopic effects or trail. It challenges the common explanations for why a moving bicycle stays upright.

Why Hacker News recommends it

HN commenters cite it as the author's own demonstration of research showing that bicycle stability is not explained by gyroscopes.

  • 2 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2013, last 2019

What HN commenters said

  1. “here is a great video by the author”

    Author's video showing a bicycle should turn into a fall.

    schoper, 2013-08 · Recommendation · in “We still don't really know how bicycles work”

  2. “Explanation of the research in question behind this article, as well as a demonstration of the bike they based the research on.”

    Demonstrates the research bike stable without gyroscopic or trail effects.

    aray, 2013-08 · Recommendation · in “We still don't really know how bicycles work”

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

Topics: bicycle stability, gyroscopic effect, trail, physics, self-stability

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