In the simplest construction of the Barton's pendulums experiment, approximately 10 different pendulums are hung from one common string.
Notes on verification
Corroborated by Harvard demo page describing 11 total pendulums (10 driven + 1 driver), closely matching the claim. However, other reputable sources (UCSB, UK schoolphysics) describe variants with 5-7 driven pendulums, showing the exact count is not standardized across implementations, only approximate for the commonly cited 'classic' version. [tier=silver indep_score=0.917 clusters=3 claim_tier=notable]
Sources
- Barton's pendulums (wikipedia)
- https://sciencedemonstrations.fas.harvard.edu/presentations/bartons-pendulum (corroboration)
- https://www.schoolphysics.co.uk/age16-19/Mechanics/Simple%20harmonic%20motion/text/Resonance_/index.html (corroboration)
- https://web.physics.ucsb.edu/~lecturedemonstrations/Composer/Pages/40.42.html (corroboration)