Structural Engineering: Bridges Blast Pad It's one of the most

It's one of the most challenging cubes to solve

The ultimate travel toy

A sturdy box makes for easy storage and its small size is perfect for travel

Manufacturer’s note: Please pull the white tab out of the back of the book before use

Structural Engineering: Bridges Blast Pad It's one of the mostCurious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. The 36 page, colorful instruction manual makes it easy to learn about basic structural elements including columns, beams, trusses, plates, arches, shells, and catenary through hands on construction. Experiments explore the forces acting on structural components including tension, compression, shear, and