In this fascinating DIY tutorial, learn how to transform simple cardboard into a functional camcorder for your smartphone.

In this video I show you how to make robotic arm from cardboard, it's quite fun to plaw with. Especially by moving coca cola cans. You need: cardboard, 8 syringes with rubber piston, old battery, 4 ...

Building with cement and concrete is CO₂-intensive. Cardboard and pressed clay can sometimes be an ecological substitute for these building materials.