Quick Answer: The Newton Colour Disc Model has a polymer disc with seven spectral colour segments, turned by a hand-driven pulley system with high-ratio gearing and a driving belt.
Last updated: October 2026
Key Features
Polymer disc with seven spectral segments
Manual hand-driven pulley with high-ratio gearing to keep the disc spinning
Low-friction bearing and reinforced driving belt
Epoxy-coated metallic base
Technical Specifications
Specification
Value
Disc
Polymer, seven spectral segments
Drive
Hand-driven pulley with high-ratio gearing and belt
Bearing
Low-friction
Base
Epoxy-coated metal
About This Product
Turning the handle spins the disc fast enough for the eye to merge the seven colours, showing that white light is made up of the colours of the spectrum.
Frequently Asked Questions
How is the Newton Colour Disc Model turned?
By hand, through a pulley system with high-ratio gearing and a driving belt, so the disc keeps spinning fast enough for the colours to merge.
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