Deluxe Optics Kit with Ray Box, 29 Components Physics_Heat & Thermodynamics demonstrating atmospheric pressure through evacuated

demonstrating atmospheric pressure through evacuated twin-hemisphere separation work

Continuously motor-driven to supply a steady high-voltage source

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

Six-pack of polished stainless steel spatula-scoops with one rounded end and one pointed end

Medium-size 5-inch pulley on a universal clamp accepting a variety of support surfaces

Deluxe Optics Kit with Ray Box, 29 Components Physics_Heat & Thermodynamics demonstrating atmospheric pressure through evacuatedPairing a hinged mirror ray box with lenses, prisms, mirrors, filters, and slit plates, this deluxe optics kit covers reflection, refraction, dispersion, and color mixing activities.