Science & Exploration

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...

Set the planets in motion with a flick of your wrist! Build a mechanical model of the solar system including the sun and eight planets (also known ...

Super sweet stunts! Build your own gumball machines and learn physics lessons in the process. A turn of a handle dispenses one gumball at a time ou...

If your tween or teen has a fascination with all things steampunk - or trains in general - then this kit is for them! Young engineers put on their ...

Kick your creativity into gear! Easily connect 16 cogs and gears to create a mechanical display like you've never seen before. Six larger gears hav...