Leslie's Cube, Copper, 100mm Sides Subcategory_Boiling Flasks 8-inch metal flywheel balanced on

8-inch metal flywheel balanced on a horizontal shaft with reference pointer and four wall-mount holes

Glass tube 33 inches long with a cork piston riding on a stable wooden base

and acrylic in a foam-lined wooden case for density-versus-material investigations

revealing cornea

balancing magnification strength against field of view for general reading

Leslie's Cube, Copper, 100mm Sides Subcategory_Boiling Flasks 8-inch metal flywheel balanced onCopper walled Leslie's cube at 100mm per side with dull black, bright black, white, and polished faces, comparing thermal radiation emissivity from surfaces at identical temperature.