A collection of 54 eye-catching optical illusions that fool the eye and delight the imagination. Colors, shapes and appearances transform themselves magically right before your eyes. Nothing is what it seems – and what you see is definitely not what you will get. Created by Pentagram, the internationally-renowned design firm. Based on the best selling book Pentamagic. Complete with explanations. Suitable for all card games.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Build a magnetic levitating train with this science fair project kit!
Have fun building your very own FM radio!
Dig deeper, and discover the fascinating crystal structures of minerals and rocks with this great kit!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!