Helmholtz Coils on Base, 400 Turns, 150mm Diameter Mechanics_Kinematics and refraction blocks during ray-box

and refraction blocks during ray-box and spectrometer experiments

9A with oxidized constantan winding on a vitreous-enameled steel tube and a phosphor-bronze sliding contact

Outfitted with six drying pegs along a second tier

and a month-labeled base for tracking orbital positions through the year

this eight-fork steel set lets students hear and measure frequency

Helmholtz Coils on Base, 400 Turns, 150mm Diameter Mechanics_Kinematics and refraction blocks during ray-boxPair of 400 turn copper coils on an adjustable base, producing the nearly uniform field used to calibrate magnetic sensors and verify the Helmholtz geometry.