As winter blows in, meteorologists and apps alike are reporting lower and lower temperatures, but one figure they give you is pure nonsense: the wind chill. Temperature is unaffected by wind, but moving air does impede the human body’s ability to stay warm. We radiate heat that creates a small bubble of relatively warmer air around our bodies. Wind blows that bubble away and we feel colder as our bodies work to replace it. The moisture in our skin also plays a role,...

Source: Wall Street Journal December 02, 2019 23:45 UTC