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Hands-On Museum Exhibit Brings Electromagnetism to Life

Posted on January 17, 2023 by Robin Kearey

Several people at a museum exhibit about magnetism

Magnets, how do they work? Although the quantum mechanics behind ferromagnetism are by no means easy, a few simple experiments can give you a good grasp of how magnets attract …read more Continue reading Hands-On Museum Exhibit Brings Electromagnetism to Life→

Plumbing Valves as Heavy Duty Analog Inputs

Posted on October 24, 2022 by Navarre Bartz

A diagram showing an LED on the left, a lever-style plumbing valve in the center, and an Arduino Uno on the right.

Input devices that can handle rough and tumble environments aren’t nearly as varied as their more fragile siblings. [Alastair Aitchison] has devised a brilliant way of detecting inputs from plumbing …read more Continue reading Plumbing Valves as Heavy Duty Analog Inputs→