A group of text words that are arranged in a random order on a website. Also called a "tag cloud," the words in a word cloud are generally links to other Web pages on the site. Word clouds are ...

Have you ever wondered how clouds stay in the sky? Here's your answer, and by the way, the weight of an actual cloud might ...

Sometimes if you have a volcano or wildfire, a pyrocumulus cloud will form overhead. These are also known as flammagenitus or fire clouds. The intense heat source forces the air upwards, creating ...