Explanation: Wind vanes are used to measure wind direction. The vane points into the wind. For a more accurate reading, make arrow smaller than video shows (wanted it to be easily seen)!

For a farmer, a road crew, or a marina operator, weather data is not background information. It affects timing, safety, labor, and money. That is why a professional weather monitoring system is built ...

Sometimes, it’s nice to know how windy it is outside. Knowing the direction of the wind can be a plus, too. To that end, [Sebastian Sokołowski] built himself an unusual anemometer—a wind gauge—to feed ...