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DescriptionDiscover how a Jet Engine Really Works! Build your very own working model, with spinning turbo fans and a variable speed control. Built ...
View full detailsDescriptionDescriptionThe engine you're about to start building is a greatly simplified version of a real car engine. The model is designed to be f...
View full detailsDescriptionLeonardo da Vinci was fascinated by the escapement mechanisms for themeasurement of time to the extent of studying a great number of the...
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