Invented by Farmer Wu Yulu in a village outside of Beijing, this robotic rickshaw is an environment friendly vehicle pulled by a self-made walking robot which is powered by a onboard battery and controlled by a car steering wheel like device. The life-size robotic model is able to walk and talk, ...
A 1.6 ton homemade submarine mostly assembled from metal barrels and second-hand parts. Hand made by the amateur inventor Tao Xiangli, the 20ft fully functional submarine consists of a passenger compartment for only one person and features pressure meters, monitoring cameras, a TV set, oxygen ...
A single-seater helicopter that is made by a 20-year-old farmer from central China with a pile of steel pipe, some Elm wood and a 150cc scooter engine. Using what he remembered from his high-school physics and information on the Internet, Wu Zhongyuan built the helicopter by carving its rotor ...
A three-wheeled automobile self-made by a 47 years old grassroots inventor named Zhu Runqiang from Hubei, China. Weighing over a ton, the futuristic sports car measures 5 meters in length and contains a front driver seat and back passenger compartment. The car's frame is made from scrap metal ...
The total area of all surfaces that compose a part.
The cost of cutting a workpiece from a piece of stock.
Parts whose primary function requires that it be in motion
Metals or alloys that are free of iron or comparatively so.
