US$ 29.99
Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary
polythene plates
fluid reservoir
Cutaway working steam engine model with piston
Aluminum pendulum clamp with three screw attachments on a die-cast head clamp fitting rods up to 16mm
2-Plate Magnetic Field Demonstrator Set Foodsafe Research-grade oxygen spectrum tube atTwo transparent 153 x 76 x 6mm plates, each fitted with 98 iron rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near.
US$ 29.99
US$ 49.99
US$ 49.99
US$ 54.99
US$ 49.99
US$ 14.99
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US$ 119.99
US$ 19.99
US$ 29.99
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US$ 29.99