Tired of
the tiny spectrum that results from a prism?
Teach about color and
spectroscopy with this complete kit. Mount the grating on the top of your
overhead projector, and project a broad, bright spectrum on the wall. Use
the included color filters to show color addition and subtraction, and use
the unique "Anti-slit" mask to show complementary colors.
Kit includes Holographic Diffraction Grating, projector mount, slit and
anti-slit masks, primary and secondary color filters with spectral graphs,
and complete instructions.
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