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Bench Talk for Design Engineers

Bench Talk

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Bench Talk for Design Engineers | The Official Blog of Mouser Electronics


Why Aliens Know Math Lynnette Reese
I spent most of Saturday at the Fort Worth Museum of Science and History for Engineer’s Week. I sat at a table with half a dozen kids at a time, showing them how to connect little DC motors to batteries, and exploring and explaining series and parallel connections for the braver ones. We had several DC motors with a glue stick off center on the shaft of the motor so it would wobble, and velcro attached the motor and battery holder with alligator clip leads to a scrub brush. The result was a giant hex bug popping around on the table. Some kids were very interested in how they could take it further, and others had glazed expressions. For the ones that wanted to go further, I showed them how to connect three 9V batteries in series to feed the motor 27 volts… and it really buzzed. Then I told them we were on the Mars Rover team and had to make sure that even if a lead broke, the rover would still go.

Engineer's Week 2014 and the Next Generation of Engineers Erik Smith
It’s Engineer’s Week, and outside of celebrating by reading Col. Chris Hadfield’s new book, “An Astronaut’s Guide To Life On Earth”, I’m also doing some volunteer work, representing Mouser Electronics at the Fort Worth Museum of Science and History. We have both a display, showing kids various functioning LEDs, chips, speakers and a nifty little robot built from a Parallax kit, and a hands-on table showing young kids how to build their own homopolar motor. This fascination with how things work and being able to build it yourself is a common trait I’ve seen in engineers of all ages.

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