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L'étoilée, inspiration Waldorf

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Building bridges

ponts-histoire
69.00$ each
2 items in stock

Kraul Building Bridges

This experimental kit always has been exciting.  A variety of bridges was constructed and advanced, many of them collapsed.  A bridge constructor has to consider several forces when constructing a solid bridge.  Different materials and techniques in our experimental box show advantages and disadvantages of different types.  The manual not only leads through the history of bridge construction but also encourages building different types of bridges over ditches and steams.

For children 10+