Digging tunnels has become easier and safer thanks to custom-designed tunnel-boring machines. Tunnel-boring machines (TBMs) could be the ultimate power tool. They're monstrous, weighing millions of ...
Labor saving devices are nothing new, but they rarely inspire the kind of dedicated stewardship that antique engines do. This week in Fort Meade, Florida, the 1500 members of the Florida Flywheelers ...
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