Mercury Trough Rod Size_23.6" the flywheel light enough to

the flywheel light enough to drive by breath for hands-on reciprocating-engine study

Laboratory table clamp mounting rods to benches up to 2

sized so students can see the moving-coil mechanism while it reads

Nickel-plated T-pins provide secure specimen pinning with broad heads for stable dissection board mounting in biology laboratories

this 2-input XOR gate module shows HI and LO output states with red and green LEDs and a printed reference

Mercury Trough Rod Size_23.6" the flywheel light enough toGlazed porcelain mercury trough at 75mm diameter with interior and exterior glazing, chemically resistant for collecting gases over mercury in pneumatic trough experiments.