SEE - DEEZ LIGHT DIFFRACTING SPINNER DISC CREATE MOVING 3-D COLOR IMAGES SCIENCE

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SEE - DEEZ LIGHT DIFFRACTING SPINNER DISC CREATE MOVING 3-D COLOR IMAGES SCIENCE.
DIFFRACTION GRATINGS CREATE RAINBOW COLORS BY REFLECTING LIGHT FROM MANY TINY PARALLEL LINES - OVER 14,000 PER INCH ON THIS FOIL.  WHEN REFLECTED, THE LIGHT WAVES INTERFERE, REINFORCING OR CANCELLING EACH OTHER AND REVEALING ALL THE FREQUENCIES ( COLORS)   OF LIGHT.
A PERFECT CHRISTMAS PRESENT FOR THE PERSON WHO HAS EVERTHING.  ALSO A GREAT STOCKING STUFFER.
YOUR YOUNG SCIENTIST WILL LOVE THESE.
OTHER ARE FIR SALE ON MY PAGE
BRAND NEW IN ORIGINAL FACTORY SEALED PACKAGING.