In this remarkable work, the episodes of sonic violence are answered by cool layers of sustained winds.

It is stratified in temperature, with warmer layers higher up and cooler layers farther down.

Sipping through a cool layer of cream only intensifies the experience.

In winter, operating a ceiling fan mixes warm and cool layers of air.

The mountains also shield the area from cool marine layers.

The hot and cool layers of air and the reflecting sun have been creating a mirage on the pavement for the thirsty birds.

Marine layer: The cool, moist layer of air coming in from the ocean which typically includes fog.

With sufficient humidity in the cooler layer, fog is typically present below the inversion cap.

Start with a hot crab cake set on a cool layer of minced tomatoes, avocado and capers ($9.95).

On account of this, the coolest layer in the atmosphere lies at about 17 km over the equator.