“Weather” is what the sky and the air outside are like—cloudy, snowy, sunny,
or windy. A wide band of air—the atmosphere—surrounds Earth, but weather only happens near the ground, below the cloud...
250th Anniversary Book of the Year
Encyclopædia Britannica, founded in 1768, has been serving knowledge seekers around the world for 250 years. To commemorate this milestone we’re publishing the Encyclopædia Britannica Anniversary Edition: 250...