11-LED Array for Determining Planck's Constant Plastic Labware_Plastic Beakers & Jugs and amphibian skeletal structure for

and amphibian skeletal structure for comparative vertebrate teaching

1mL graduations and glass key stopcock for precise titration procedures

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

Two independent output channels on this compact AC/DC power supply deliver six selectable voltages up to 12V at 500 mA each

Hand-painted enlarged flower cross section exposes the calyx

11-LED Array for Determining Planck's Constant Plastic Labware_Plastic Beakers & Jugs and amphibian skeletal structure forEleven LED array for determining Planck's constant by plotting wavelength against threshold voltage, pairable with a direct vision spectroscope in advanced physics investigations.