Hand Newton’s disk
Product Code : SCL-OS-12828
The Hand Newton’s Disk by Educational Instrument is a classic classroom demonstration model consisting of a circular multi-colour spectrum disc that is rotated manually. When the coloured sectors rotate at sufficient speed, the separate colours visually blend and appear nearly white because of persistence of vision.
This apparatus gives teachers a simple and effective way to connect optics theory with hands-on learning. It supports lessons on white light composition, visible spectrum, colour perception, additive colour mixing, and the way the human eye perceives rapidly changing visual information.
Key Features
Manual operation: Hand-operated rotation makes the experiment simple and classroom friendly.
Optics demonstration: Shows how spectrum colours combine visually to form near-white light.
Student-friendly concept: Helps learners understand white light, colour mixing, and persistence of vision.
Reusable lab apparatus: Suitable for repeated demonstrations in school and college physics laboratories.
Safe teaching model: Designed for supervised educational use without complex setup.
STEM application: Useful for science fairs, STEM kits, optics lessons, and practical demonstrations.
No false capacity claim: Capacity is not applicable because this is not a measuring or volumetric item.
Technical Specifications
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Specification |
Detail |
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Product Name |
Hand Newton’s Disk |
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Brand |
Educational Instrument |
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Primary Keyword |
Hand Newton’s Disk apparatus |
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Product Category |
Physics laboratory optics demonstration apparatus |
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Capacity |
Not applicable |
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Operation |
Manual / hand-operated rotation |
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Disc Pattern |
Multi-colour spectrum sectors printed on a circular disc |
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Learning Concepts |
White light, visible spectrum, colour mixing, optics, and persistence of vision |
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Intended Users |
Schools, colleges, physics labs, STEM labs, teacher training centres, and science exhibitions |
What's Included in the Kit
Multi-colour Newton’s disk
Manual rotating handle, spindle, string mechanism, or hand rotation arrangement as supplied: [confirm]
Support stand or base as supplied: [confirm]
Instruction sheet or user guidance: [confirm]
Applications / Uses
Demonstrating the composition of white light in physics laboratories.
Teaching visible spectrum and colour recombination in optics lessons.
Explaining persistence of vision through a rotating coloured disc.
Supporting STEM activities, science fairs, and classroom demonstrations.
Introducing students to the difference between stationary colours and rapidly blended colours.
How to Use the Hand Newton’s Disk
Place the Hand Newton’s Disk apparatus on a stable and flat laboratory table.
Check that the coloured disc is properly fixed to the spindle or rotating arrangement.
Rotate the disc manually using the supplied handle, string, or hand mechanism.
Increase the rotation speed until the separate colours start blending visually.
Ask students to observe how the coloured sectors appear nearly white during fast rotation.
Stop the disc and let students compare the stationary coloured sectors with the rotating effect.
Explain that white light is composed of different colours of the visible spectrum.
Safety note: Use only under teacher or laboratory instructor supervision. Do not touch the disc while it is rotating, and keep fingers, hair, loose clothing, and small objects away from moving parts.
Care & Maintenance
Wipe the disc and stand with a clean, dry cloth after use.
Store the apparatus in a dry cabinet to protect the printed colour sectors.
Do not bend the disc or force the rotating mechanism.
Check the spindle, handle, or string mechanism before every classroom demonstration.
Why Choose Educational Instrument
Educational Instrument manufactures and exports scientific laboratory instruments, physics apparatus, STEM models, science kits, mathematics kits, and didactic educational models. Its products are developed for practical learning in schools, colleges, laboratories, and training institutes.
The Hand Newton’s Disk supports clear classroom instruction by turning an abstract optics concept into a visible experiment. For related laboratory products, explore physics lab equipment, mechanics and heat apparatus, science lab equipment, and STEM science labs DIY kits.
Frequently Asked Questions
What is a Hand Newton’s Disk used for?
A Hand Newton’s Disk is used to demonstrate that white light is made up of different colours of the visible spectrum. When the coloured disc rotates rapidly, the colours blend and appear nearly white.
How does a Hand Newton’s Disk work?
The disc has coloured sectors representing the visible spectrum. Fast rotation makes the eye perceive the colours together because of persistence of vision.
Is Hand Newton’s Disk suitable for school laboratories?
Yes. It is suitable for school physics labs, STEM classrooms, science practical sessions, and science exhibitions under teacher supervision.
What concepts can students learn from this apparatus?
Students can learn white light composition, visible spectrum, colour mixing, optics, and persistence of vision.
Does the Hand Newton’s Disk require electricity?
A hand-operated Newton’s Disk does not normally require electricity. If a motorized version is supplied instead, use only the recommended power source.
What material is the Hand Newton’s Disk made of?
The exact material should be confirmed before publishing. Do not list plastic, metal, wood, or any specific material unless verified for the supplied model.
For more practical optics and physics teaching products, visit the Educational Instrument physics lab equipment category.
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