Solenoids are a key component for turning electrical current into motion. Many DIY’s, makers and inventors alike often find themselves using these devices daily. Pinball fanatic and inventor Jeri Ellsworth breaks them down.
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Other cool hacks and mods from our Archives: Electronics: Basics of Batteries
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 Video: Key Fob Activated Dorm Door Opener
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 DIY Motion Activated Silly String Shooter
 Dean Kamen’s Robotic Arm
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