US$ 41.99
proof plane
25-inch base raises a magnetic needle to a 4
Easy to clean and maintain
and vestibular structures at visible scale for group classroom demonstrations of auditory anatomy
5cm coil diameter on a 5cm closed-length helix
Demonstration Motor with Newton Color Disc Physics_Force & Motion proof planeUsed to spin the Newton disc into a perceived white via persistence of vision, this demo motor on a molded ABS base operates at 6 8V to demonstrate visible spectrum color mixing.
US$ 41.99
US$ 23.99
US$ 599.50
US$ 25.99