Nice article, Professor Petroski. I, too, was a paperboy. It was the early 1960s. I remember delivering the paper announcing Kennedy has been shot. I'd get to my pile of papers at about 4:30 a.m. and fold each one before filling my canvas sack. If you folded them tight enough, they stayed together when they landed on the front porches or sidewalks. I'll never forget the fold. It didn't work for the Sunday papers, though.
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
A half century ago, cars were still built by people, not robots. Even on some of the country’s longest assembly lines, human workers installed windows, doors, hoods, engines, windshields, and batteries, with no robotic aid.
DuPont's Hytrel elastomer long used in automotive applications has been used to improve the way marine mooring lines are connected to things like fish farms, oil & gas installations, buoys, and wave energy devices. The new bellow design of the Dynamic Tethers wave protection system acts like a shock absorber, reducing peak loads as much as 70%.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.