US$ 39.99
Platinum anode-and-cathode pair fitted in a rubber bung
Zinc-plated rectangular steel bar-magnet pair packaged with keepers that bridge the poles in storage
Higher-bandwidth 30 MHz dual-channel oscilloscope
Heavy-base Bunsen burner adds stopcock gas control for fine flame adjustment during chemistry experiments with liquid propane or butane fuel
Fully enclosed EDM-80 moving-coil DC milliammeter measuring 0-500mA at plus-or-minus 2
Economy Demonstration Motor Science at Home_Math Platinum anode-and-cathode pair fitted inOpen frame economy DC motor on a 10x10cm molded ABS base, exposing the rotating coil and field magnet for direct observation as students supply 4 9V to drive the rotation.
US$ 39.99
US$ 49.99
US$ 122.50
US$ 130.00
US$ 59.99
US$ 39.00
US$ 108.00
US$ 120.00
US$ 199.99
US$ 130.00
US$ 120.00