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!
Do micro-controller projects and program them using your own computer!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Learn how solar cells transform light into electrical energy with this great kit!
Create beautiful art with this amazing sun paper!
Build a hand that realistically moves its fingers using shape memory allow technology!
An ancient toy featuring optical illusion and hands-on fun that never grows old!