Spectrum Projector

Experience a clear and bright projected spectrum in a room that cannot be completely darkened and demonstrate the changing color of an incandescent object as its temperature changes with simple equipment. The spectrum projector includes all of the materials necessary to build a device that will produce a diffracted beam of light in two directions (two lab setups in one). A dimmer allows students to vary the temperature and brightness of an incandescent light bulb to study how the spectrum changes. A paraff