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Perlite: It's Like Popcorn for Your Potting Soil!
home.howstuffworks.com/perlite.htm
Those white beads you see in potting soil are made of a volcanic glass called perlite. And that's not the only place you'll see this versatile material.
Planet Mercury: Fast, Pockmarked and Shrinking
science.howstuffworks.com/46004-mercury-explained.htm
Mercury is the closest planet to the sun, and it's the smallest in the solar system. So why does it have longer days than we have on Earth?
Is This NFL Team In the AFC or NFC?
play.howstuffworks.com/quiz/is-this-nfl-team-the-afc-nfc
The National Football League is divided into two conferences, the American Football Conference (AFC) and the National Football Conference (NFC). Conference alignment can make the difference between making the playoffs or staying home knitting an homage to Bill Belichick while watching "Golden Girls." Can you match these teams to the correct NFL conference?
London Bridge Has Never Fallen Down, But It Keeps Getting Rebuilt
science.howstuffworks.com/engineering/structural/london-bridge.htm
Despite what the nursery rhyme says, London Bridge is not falling down - and never really has. But the bridge that spans the Thames has been rebuilt again and again for two millennia.
Top 5 Gadgets on the High-tech Soldier
science.howstuffworks.com/5-gadgets-high-tech-soldier.htm
Soldiers rely on all kinds of high-tech gadgets to help them get their jobs done. Some of them are specially designed for military use, while others are gizmos you might have in your pocket right now.
What Does It Mean When Someone Says 'That's Just Semantics'?
people.howstuffworks.com/semantics.htm
In our modern vernacular, the phrase "that's just semantics" has somehow become shorthand to insinuate the speaker has argued something trivial or unimportant. But what does it really mean?
7 Times Misleading Movie Trailers Didn't Align with the Film
entertainment.howstuffworks.com/misleading-movie-trailers-film-previews.htm
Why doesn't a preview always represent the movie it's advertising? Learn more about misleading movie trailers in this HowStuffWorks article.
15 Largest Cities in North America, Ranked by Population
people.howstuffworks.com/largest-cities-in-north-america.htm
The most populous country in North America (the United States) is also home to some of the largest cities in North America, but the No. 1 spot goes to Mexico City.
How Has Interracial Marriage Been Treated Around the World?
What's the state of interracial marriage in the United States and around the world? Learn more in this HowStuffWorks article.
Who Owns the Rights to a Dinosaur Skeleton?
animals.howstuffworks.com/dinosaurs/who-owns-rights-to-dinosaur-skeleton.htm
Who owns the rights to irreplaceable fossils? HowStuffWorks looks at the controversy.