US$ 29.99
candle mount
supplying the picofarad-end of the cap reference series for RF-tuning experiments
then resetting as it cools
Twelve-inch friction rod machined half from ebonite and half from brass
Micro Plus stethoscope features stainless steel chest piece and spare components for cardiovascular assessment and medical training
Magnetic Atoms Molecular Model Set (Carbon, Methane, Butane) Light & Optics_Color candle mountUsed to mount molecular models on magnetic boards for whole class viewing, this set pairs magnetic carbon atoms and links with non magnetic hydrogens and oxygens for combustion demos.
US$ 29.99
US$ 149.50
US$ 119.00
US$ 19.99