US$ 287.50
5-inch diameter artery cross sections reveals atherosclerosis
Hand-cranked Van de Graaff generator with a 9
Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed
sized so that students can compare its uniform-curvature surface charge against sphere and cone partners in the conductor set
Faraday's Butterfly Net Electricity & Magnetism_Circuits 5-inch diameter artery cross sectionsDemonstrates that charge resides only on the outer surface of a conductor by inverting the charged net inside out and showing the charge transferring to the new outside layer.
US$ 287.50
US$ 132.00
US$ 89.95
US$ 212.50