US$ 32.50
Stamped with element symbols for quick identification
Packaged as a biodegradable classroom kit
this Alnico U-shape carries 45mm pole spacing for compact-bench field demonstrations and motor-effect setups
and a wrist-pin string across a 720mm bridge span on a 1290 x 130 x 110mm hollow wooden sounding box
Mounted Magnetometer Subject_Botany Stamped with element symbols forPolished non warping wooden base with a built in meter scale carries a compass box magnetometer, sized for measuring direction and field strength on the lab bench.
US$ 32.50
US$ 51000.00
US$ 18.99
US$ 103150.00