ModelNew
Foucault pendulum
A tall frame holding a wire and a heavy brass bob over a floor disc ringed with marker pegs, the pendulum that shows the Earth turning.
- Version
- 1.0.0
- Added
- 23 October 2026
- Films
- Not used in a film yet
Parameters
| Name | Type | Default | Range | What it does |
|---|---|---|---|---|
| height | number | 9 | 3 to 30 m | how high the pivot stands over the floor (real ones hang 3 to 30 m) |
| frameType | choice | tripod | tripod, tower, gantry | the frame: a tripod, a four-post tower or a ridge beam on two A-frames |
| swing | number | 5 | -15 to 15 deg | the wire's angle from the vertical: where the bob hangs in its arc (0 is at rest) |
| plane | number | 35 | 0 to 360 deg | heading of the swing's plane, clockwise from +y (north) seen from above; turn it to show rotation |
| bobRadius | number | 0.25 | 0.06 to 0.5 m | radius of the heavy bob (drawn larger than a real one so it reads from afar) |
| ring | number | 2 | 0.5 to 10 m | radius of the ring of marker pegs on the floor |
| pegCount | integer | 24 | 8 to 48 | how many marker pegs stand round the ring |
| frame | color | #46525e | – | the frame's painted steel |
| floor | color | #c9c2b3 | – | the floor disc |
| pegs | color | #c8412f | – | the marker pegs; a channel's seed turns their hue |
| bob | color | #c19445 | – | the brass bob and its stylus |
| wire | color | #8b9096 | – | the wire |
Use it in a film
film.js
world: { props: { prop: { model: 'pendulum', at: [6, -4] } } }Use it from your agent
Ask your agent to put it in a film. It finds the element by name.