Mercury Trough Rod Size_23.6" sized so students can see

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

and accessories for combined friction and inclined-plane work

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

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

controllable flame shape during laboratory heating

Mercury Trough Rod Size_23.6" sized so students can seeGlazed porcelain mercury trough at 75mm diameter with interior and exterior glazing, chemically resistant for collecting gases over mercury in pneumatic trough experiments.