US$ 50.00
mounted on a swivel boss head fitting 18mm rods for secure angular placement on retort stands
Hand-painted animal cell model reveals organelle structures
sized to read one step up from the 0-1A meter when student circuits draw past the lower meter's full-scale deflection
armature winding
5 N/m spring constant
Candle Holder, 20mm Material_Iron mounted on a swivel bossMatte black metal body 20mm in internal diameter and 22mm deep on a bench rod, holding a 20mm candle steady for thermal expansion, soot deposition, and convection experiments.