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$90.00 CAD
The little motor is literally constructed from the can in which it came. It is powered by the heat of the tea candle and the air cooling. The principle is really simple, but very sophisticated. A hobbyist needs 2–3 hours to assemble the approximately 150 parts. The detailed instruction manual with precise illustrations guides step by-step to the complete motor. Only basic tools needed
Toys built to show the mechanism rather than hide it.
The maker
Kraul
Bavaria, Germany
Kraul has been in the same family for three generations, and each generation brought a different trade to it. Mara Kraul started the business in the 1920s on artistic embroidery and knitting. Her son Walter, a mathematics teacher at the Rudolf Steiner School in Munich,… began designing waterwheels and cable cars for children who had to build them before they would work. He took over in 1976. His son Christoph, a meteorologist and physicist, joined in 1989 and designs the experiment kits.