This 7.25 x 10.25 inches magnifying plastic sheet is great for optics / science projects, for reading or just fun. A French physicist named Augustin Fresnel invented this lens in 1822 to be used in lighthouses. The construction of Fresnel lens is quite interesting as it allows magnification just like regular glass lenses do but it can be as thin as paper!
Every kid needs one of these spheres!
Defy gravity with this cool balancing eagle!
Perform awesome experiments using everyday materials found in any kitchen!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
Is it a demonstration of a scientific law or a work of art?
This ultimate chemistry set features 250 mind-boggling experiments!
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