Electric Motor Model with Newton Colour Disc Manufacturer,Supplier and Exporter
Product Code : SEL-PLE-10210
Quick Answer: Spin a disc of spectral-colour sectors fast enough and the colours merge into white; this Newton colour disc set shows the effect on a 150 mm disc turned through a friction pulley and hand-driven wheel.
Last updated: October 2026
Key Features
Multicoloured disc, 150 mm diameter
Sectors of spectral colours in proper proportions
Friction pulley at the back, turned by a driving wheel with handle
Complete assembly on a stable base
Technical Specifications
Specification
Value
Disc diameter
150 mm
Disc
Sectors of spectral colours in proportion
Drive
Friction pulley and driving wheel with handle
Mounting
Stable base
About This Product
Newton's colour disc is a well-known demonstration that white light is made up of all the spectral colours. When the disc is turned at sufficient speed, the eye can no longer separate the sectors, and additive mixing makes the colours appear as a single white. Turning the handle drives the wheel that touches the friction pulley at the back of the disc, and the whole assembly stands on a stable base.
Frequently Asked Questions
Why does the disc look white when it spins?
White light is made of all the spectral colours. At sufficient speed the coloured sectors merge by additive mixing, so the disc appears as a single white colour.
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