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What Is Octane and How Does It Work?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question90.htm
Adding a chemical called tetraethyl to fuel can significantly improve the gasoline's octane rating. But what is octane? And how does it improve the gasoline we buy? Read on to explore this fascinating molecule.
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.
How Are Heirloom Tomatoes Different From Regular Tomatoes?
recipes.howstuffworks.com/heirloom-tomatoes.htm
You've undoubtedly heard about heirloom tomatoes, but what's so different about them, and why do they taste so good?
Favorite Halloween Candy Quiz
play.howstuffworks.com/quiz/favorite-halloween-candy-quiz
Forget costumes, Halloween is all about the candy! Take our quiz to see how much you know about the candy treats that make this holiday so sweet.
What's the Difference Between a Brown Bear and a Black Bear?
animals.howstuffworks.com/mammals/brown-bear.htm
Yes, the obvious fur color seems like a dead giveaway, but you can't always judge a bear by the color of its fur.
The Anatomy of a U.S. Presidential Motorcade
people.howstuffworks.com/presidential-motorcade.htm
The U.S. president requires constant security, especially when traveling. HowStuffWorks takes a look at what goes into the presidential motorcade.
Sea Urchins Are the Edible Pincushions of the Ocean
animals.howstuffworks.com/marine-life/sea-urchin.htm
Sea urchins look like spiny pincushions and are considered a delicacy to foodies everywhere. HowStuffWorks gets to know the sea urchin.
A Christmas Eve Mystery: What Happened to the Sodder Children?
people.howstuffworks.com/sodder-children.htm
Five of the 10 Sodder children disappeared after the family home burned down in 1945, but their bodies were never found. So, what happened to them?
What's the Secret Behind the Numbers on the Interstate Signs?
auto.howstuffworks.com/numbers-on-interstate-signs.htm
Why is one road named I-5 while another is I-480? We take a closer look at the digits on those red, white and blue shield-shaped signs.
How the V-22 Osprey Plane Works
science.howstuffworks.com/osprey.htm
The Osprey is a unique aircraft. How does it work? And what has caused its recent failures? Get an in-depth look at the aircraft's systems and design.