What happens when you get a sock stuck in your vacuum cleaner? The motor sounds like it's working harder, but is it? The post Got a Sock Stuck in Your Vacuum? It's Time for Some Physics appeared first on WIRED.
You can build an anemometer with an electric motor and a fan blade. Here's how. The post Forget Weather Apps: Measure the Wind Yourself With an Old Electric Motor appeared first on WIRED.