Lariat chain

Science demonstration
A lariat chain at the Museu de la Ciencia (science museum), in Barcelona, Spain.

A lariat chain is a loop of chain that hangs off, and is spun by a wheel. It is often used as a science exhibit or a toy.

The original lariat chain was created in 1986 by Norman Tuck, as an artist-in-residence project[1] at the Exploratorium in San Francisco.

The lariat chain was developed from an earlier Tuck piece entitled Chain Reaction (1984). Chain Reaction was hand cranked, and utilized a heavy chain attached by magnets onto an iron flywheel. As in the lariat chain, Chain Reaction used a brush to disrupt the motion of the traveling chain.

The speed of the chain is arranged to equal the wave speed of transverse waves,[2] so that waves moving against the motion of the chain appear to be standing still.[3][4]

See also

  • Belt (mechanical)
  • Foucault pendulum
  • Launch loop has similar potential instabilities

References

  1. ^ "Exhibit Cross Reference – Lariat Chain". Exploratorium. Retrieved 2014-03-17.
  2. ^ "Transverse and Longitudinal Waves". hyperphysics.phy-astr.gsu.edu. Retrieved 2016-02-13.
  3. ^ Exploratorium Archived 2008-10-05 at the Wayback Machine
  4. ^ "normantuck.com". Archived from the original on 2021-01-25. Retrieved 2008-07-25.

External links

Wikimedia Commons has media related to Lariat chains.
  • Coilgun info: Lariat Chain Introduction
  • Kinetic Chain sculpture built from a bicycle
  • Instructables how-to
  • Simulation of a Lariat chain


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