Learn to manufacture your own solenoids and then use them to play the xylophone by watching the tutorial video after the break. [Humberto Evans] and the team at Nerd Kits do a great job of not ...

vibrate more slowly and make lower-pitched sounds. Shorter objects vibrate faster and make higher-pitched sounds. When Xena strikes the bottles with a metal spoon, she causes the bottles and the water ...

Miller] applied the standard in his decidedly analog self-playing robotic xylophone. Framed inside a fetching Red Oak enclosure, the 25-key instrument uses individual solenoids for each key ...