So you're not "Hawaii Five-O's" Steve McGarrett, but wouldn't it be cool to have flashing lights and a siren on your car? John Graham's circuit makes it all possible – if you have a Pinewood Derby car made out of wood and plastic wheels. In John's car, coin-cell batteries power a microcontroller that flashes blue and red LEDs on the car's top and a buzzer simulates a two-tone police siren. "Book 'em, Danno – grand theft auto."
Industrial workplaces are governed by OSHA rules, but this isn’t to say that rules are always followed. While injuries happen on production floors for a variety of reasons, of the top 10 OSHA rules that are most often ignored in industrial settings, two directly involve machine design: lockout/tagout procedures (LO/TO) and machine guarding.
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.