Allows 2 People to View Simultaneously
Ventilated Bug Viewer with Base
Top View 6x Magnification
Bottom View 4x Magnification
Spider [Product Details...]
Leonardo da Vinci improved upon the already-established catapult design when he introduced his own vision the the age-old military launching device. This design uses a double leaf spring to produce a great deal of energy in order to propel stone projectiles or flammable materials over large distances. A hand crank on the side of the catapult was used to load the spring. [Product Details...]
Leonardo da Vinci's Mechanical Drum is a cart equipped with an amply sized drum. When pulled or set in motion the gears turn the two lateral drums which are fitted with peg cams. These pegs move ten sticks five on each side that in turn beats the drum. The pegs could be placed in various positions to alter the rhythm of the music. [Product Details...]
Makes learning electronics easy and fun. Build over 100 exciting projects. Contains over 30 parts and comes with a colorful manual. Requires two AA batteries Age 8 Up [Product Details...]
Snap Circuits XP A great introduction to the world of micro-controllers and how they are used and programmed in the world around us. [Product Details...]
