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He's got a natty blue hat and a funky... |
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The mini version of the classic... |
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Complete with apple - he invented... |
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Build your own Stirling Engine from a... |
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The original and still the best. This... |
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Pop one of the greatest minds in... |
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You don't have to be an egg-head to... |
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Spinning so fast it'll balance on your... |
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The physics-defying rattleback has only... |
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Build your own Orrery, complete with... |
