Suspension Cords for Physics Demonstrations Subcategory_Entomology Supplies Hand-driven Newton's color disc that

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

and horseshoe magnet that swap by hand

Standard rheostat at 37 ohms and 3

the microfarad-bridge decade for RC-time-constant work and audio-frequency timing circuits

Color-coded blue and red plastic cases on this bar-magnet pair (3 x 0

Suspension Cords for Physics Demonstrations Subcategory_Entomology Supplies Hand-driven Newton's color disc thatCotton twin cord at approximately 30 meters long, sized for stringing through small pulley systems or hanging pendulum bobs across multiple demonstration setups.