A simple diffraction grating perfect for use in the lab or classroom. It can be used to demonstrate diffraction of light, or to measure wavelengths of light. It can also be used in conjunction with a laser pointer for certain experiments. Features 3 different gratings, measuring 100, 300, and 600 lines/mm respectively, lending versatility to the product. Essential for optics experiments.
Build your own windmill generator kit by recycling a plastic bottle!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
View the glory of space with this hi-tech telescope set!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This magic bird defies gravity before your very eyes!
Learn all about the science of light, optics and visual perception with this wonderful kit!
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