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  Special Spectra

  This is intended to be used with a standard overhead projector to display, describe and discuss the visible spectrum of light and the role of various filters without the usual burden of special language and involved calculation. A continuous reference spectrum is projected as well as the spectrum of a filtering material.

  This is intended to be used with a standard overhead projector to display, describe and...

  This is intended to be used with a standard overhead projector to display, describe and discuss the visible spectrum of light and the role of various filters without the usual...

  Part # 18760

  In Stock

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  $65.55

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