The unique structure of this bridge holds itself together without any fasteners or connectors. The parts are notched for easy assembly, just slip the notches together and build this sturdy bridge in a matter of minutes.
How can it do this without any glue, screws, string or nails? Sometime around 1485-1487, Leonardo DaVinci devised a method for building a self-supporting arched bridge that doesn't require any ropes or other fasteners. The bridge's own weight keeps it together.
Role-play cooking a delicious meal together with your child with this realistic 2-in-1 Kitchen & Grill Set that includes metal accessories, cli...
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Race your friends around the world with this fun two-in-one game. First complete the 100-piece puzzle showing the countries of the world. Then use ...
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Carefully dig away the plaster to find the hidden dinosaur bones. Contains a Brachiosaurus skeleton about 28cm long when assembled. INFO Age ...
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Dig away the plaster to find the hidden Tyrannosaurus Rex dinosaur bones then assemble the skeleton. After assembling the skeleton there is a stan...
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Be a Palaeontologist! Dig and excavate the skeleton of a mysterious prehistoric animal and then assemble the skeleton to form a dinosaur model. Thi...
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