Watch it come to life
Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes™. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you! RAINBOW PEEPHOLES: 13,500 Line/Inch Diffraction Grating - 1 11/16" Diameter, 1/2" Window - Heavy Carboard.
IMPORTANT: Minimum order for this item is 100 pieces at .30 each. To recieve the quantity discounts advertised, you must add the quantity you're ordering to the quantity box on the order page.
Rainbow Peeps are easily the most cost-effective means of providing students with a simple tool able to reveal the spectrum of color present in white light. They are sturdier and less expensive than cardboard glasses fitted with diffraction grating. A class set of these can last for years - but for just a few dollars per class, they can be sent home to allow students to share what they have learned with their family. A terrific addition to any lesson featuring the famous Roy G. Biv, or even more sophisticated investigations into what we can learn from the spectrum.
Love to include these as bonuses when talking about light or optical illusions etc.
rainbow peepholes are the best. i have purchased them multiple times and i am sure i will again in the future. they are perfect for adding some joy into your life and the lives of people around you. buy them and mail them to all of your friends.
Great service! Fast Delivery! Love this product! Would Highly Recommend!