What Causes "Heat Shimmers" Off Of Hot Pavement?

Tools

By By Steve Pool

SEATTLE - You've probably noticed on hot, summer days if you look at a distant roadway, that you can literally see the heat radiating off the pavement as a shimmering effect.

On those hot days, the pavement does a great job of absorbing the energy from the sun. As the heat radiates away, it causes a layer of very hot air near the surface. Air becomes less dense as it becomes warmer, and light can change direction and speed when it enters an area of changing density.

Much like how things appear different at the bottom of a pool than usual, the light bends as it passes between the areas of changing density to create the shimmering effect. It's similar physics that creates mirages.

For More Information:

science.howstuffworks.com.

Your Photos

YouNews Amazing Nebula in Orion Amazing Nebula in Orion
I wanted to share these amazing images I took during our clear nights this winter from the Constellation Orion. These were imaged on Jan.20th, Jan. 28th,29th and Feb.14th & 22nd of this year from my backyard in Sedro Woolley WA.
YouNews 8k raised for Boy with Brain Cancer 8k raised for Boy with Brain Cancer
Joel Thomas Alldredge, son of Micah and Nancy Alldredge, and Older brother of Eli, is an amazing 5 year old boy. He is full of love for all those around him.