This set of filters is ideal for optical transmission measurements, solar monitoring, attenuation of laser beams, and demonstrations of laser light’s monochromatic character. Five filters of different colors are featured. Use for teaching about optics in the classroom and more!
Build a model green house and 9 other green energy-related devices with this great kit!
See the solar system in action!
Build 14 assorted solar robots, some of which can travel over water!
Build your own 10 inch kaleidoscope with this great kit!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
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