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Can You Identify All These Road Signs?
play.howstuffworks.com/quiz/can-you-identify-all-these-road-signs
Are you prone to road rage when you see a car ignoring the rules of the road? It's time to see if you stand up to your own criticism. If you know what all of these road signs are for, you're an expert driver.
How Newton's Cradles Work
science.howstuffworks.com/innovation/inventions/newtons-cradle.htm
Five metallic balls on slender threads sit side by side. As one on the end hits the rest, the one on the opposite end rises and falls. Why don't the balls in the middle move? It's complicated.
Why Does My Tire Pressure Light Come on When It's Cold?
It's freezing when you get into your car and you notice a light on your dashboard saying, 'check tire pressure.' You figure it's something to do with the cold, but must you fill up the tires fast?
Fear of the Human 'Superpredator' Causes Large Carnivores to Eat Less
animals.howstuffworks.com/mammals/fear-human-superpredator-carnivore-ecosystem.htm
How does top predators' fear of humans affect the ecosystem. Learn more about a new study in this HowStuffWorks article.
Unraveling Khipu: The Inca Knot Language
The Incas never invented a system of written language, but khipu is how they communicated. HowStuffWorks looks at the language of the Inca.
Why do some antibiotics make your stomach upset?
health.howstuffworks.com/medicine/medication/antibiotics-make-stomach-upset.htm
Antibiotics can make your stomach upset while they cure an infection. Learn which antibiotics are most likely to upset your stomach at HowStuffWorks.
How Does Alcohol Make You Drunk?
health.howstuffworks.com/wellness/drugs-alcohol/how-alcohol-makes-drunk.htm
The first drink can relax you, the fifth can be dangerous. How does alcohol make you drunk? Find out at HowStuffWorks.
Are teens more likely to die in a car accident than adults?
You might think more teens die in car accidents in the U.S. than adults. HowStuffWorks digs into the statistics to see if that's true.
How Ballpoint Pens Work
home.howstuffworks.com/pen.htm
Before the handy ballpoint, getting a few sentences onto paper was a pretty involved task. Find out how the ballpoint pen stores and manages its own ink supply to make writing a snap.
How Skin Moles Work
health.howstuffworks.com/skin-care/problems/medical/skin-moles.htm
Skin moles are common. Learn more about how skin moles work at HowStuffWorks.