How do fans make you feel cooler?

How do fans make you feel cooler?

Switching on a fan and feeling a nice breeze can feel very refreshing on a hot day, but what is going on? Is the fan taking some of the heat energy away? In a small, perfectly insulated room, switching on a fan can increase the temperature in the room as fans usually have a motor which gives out heat.

The reason why fans make you feel cool is due to something called the wind-chill effect. Blowing air over your skin causes quicker evaporation of sweat which allows your heat energy to escape much quicker than normal, making you feel cooler. Let’s hope we’ll be needing them soon!

Working vocal cords grown in a lab for the first time

For the first time, scientists at the University of Wisconsin have managed to grow functional vocal cord tissue in the laboratory, in the hope that it can restore a voice to those who have lost their own vocal cords to cancer surgery or other injuries
Science