Description
with identical volumes across specimens for direct mass-density comparison
step-up/step-down ratios
5/6/9/12V at up to 1A
Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing
Built for wing-spreading during insect mounting
Electric Motor Demonstration with 2, 3, and 4 Pole Armatures Geology with identical volumes across specimensCompares 2 , 3 , and 4 pole armature configurations on the same motor frame by swapping interchangeable enameled copper armatures past a permanent bar magnet on a disc commutator.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
recommand products
