20mm Iron Density Cube with Element Stamp Biology_Microscopy Aluminum 40cm precision force table

Aluminum 40cm precision force table with tapped pulley positions and central ring assembly for resolving and composing force vectors under equilibrium conditions

and phosphorus for organic-chemistry work

supplying precise low-resistance values for Wheatstone-bridge and Ohm's-law investigations

Built for wing-spreading during insect mounting

3V 2A AC filament line for cathode-ray experiments

20mm Iron Density Cube with Element Stamp Biology_Microscopy Aluminum 40cm precision force tableElement stamped 20mm solid iron cube marked (Fe) for density, specific heat, and specific gravity work, the ferrous reference specimen in the metal density series.