3D printing of stainless steel parts This video from How It’s Made shows the process of building stainless steel parts by 3D printing. Three-dimensional metal printers can build parts faster and cheaper than conventional casting or machining. They build objects from successive layers of stainless steel powders that are then fused together at high temperatures. […]
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Old tires improve roads
Americans generate nearly 300 million scrap tires every year, according to the Environmental Protection Agency (EPA). Historically, these worn tires often end up in landfills or, when illegally dumped, become breeding grounds for disease-carrying mosquitoes and rodents. They also pose a potential fire hazard.






