Categories

  • Health and Harmony Kits
    Perfect for the
    Classroom!
    Watch the video!

    Shop Now

Spectra There are 2 products.

  • 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...

    18760

    In Stock

    .
    $56.75
    Add to cart View
  • Novel Crossed Polarizers

    A change from typical square-cut polarized sheets - these  polarizing materials were die-cut into a circle and mounted in a square frame

    A change from typical square-cut polarized sheets - these  polarizing materials were...

    A change from typical square-cut polarized sheets - these  polarizing materials were die-cut into a circle and mounted in a square frame

    32613

    In Stock

    .
    $38.75
    Add to cart View