Meet Shu Mansheng and his 18-foot-diameter octocopter. This device — which uses eight motorcycle engine — set Shu back $3000 and can hover for 10 seconds at a height of three feet. The action starts ...
Discover how to build a homemade rubber band-powered paper airplane in this easy and engaging tutorial. We’ll guide you step-by-step as you craft the frame with skewers, add aerodynamic paper wings, ...
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