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What speed should I drive to get maximum fuel efficiency?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/question477.htm
I know that the faster I drive my car, the more gas it uses. But on the other hand, I'll get to my destination in less time. Is there a "sweet spot" on the speedometer that would give me maximum fuel efficiency? And if so, is it different for different car models?
Engine Performance Quiz
play.howstuffworks.com/quiz/engine-performance-quiz
Can you tell the difference between a camshaft and a stick shift? You will once you take the engine performance quiz. See if you know what makes your car get up and go.
Diagnosing Eating Disorders
health.howstuffworks.com/mental-health/eating-disorder/diagnosing-eating-disorders.htm
Diagnosing eating disorders is good information to know for your overall health. Learn more about diagnosing eating disorders from Discovery Health.
3 Reasons Your Nails Are Naturally Dark
health.howstuffworks.com/skin-care/nail-care/tips/3-reasons-your-nails-are-naturally-dark.htm
There may be some reasons your nails are naturally dark. Check out 3 reasons your nails are naturally dark in this article.
Tiger: A Lone Hunter and Apex Predator
animals.howstuffworks.com/mammals/tiger.htm
Tigers, scientifically known as Panthera tigris, have striking orange coats, black stripes and piercing eyes. Like other big cats, tigers are at risk. Tiger populations occupy about 5 percent of their historical range, making conservation necessary.
What is the universe made of?
science.howstuffworks.com/universe-made-of.htm
What is the universe made of? Is it made of atoms like everything found on Earth? Find out what the universe is made of in this article.
How Does a Thermocouple Work?
If your gas water heater keeps going out, or your gas oven won't heat, you may want to learn how to test the thermocouple on the gas valve. But how does a thermocouple work? Read this article to find out!
Healthiest Bottled Water: 12 Options Available in Stores
health.howstuffworks.com/food-nutrition/healthiest-bottled-water.htm
With many options available, choosing the healthiest bottled water depends on factors like source, minerals, pH level, and purity.
A Greenland Shark Living Today Could Have Been Alive in 1620
animals.howstuffworks.com/fish/sharks/greenland-shark.htm
This denizen of the frigid deep not only lives a crazy long life, it also can grow up to 24 feet in length and eating its flesh can make humans "shark drunk."
Penguins: The Monogamous Tuxedoed Birds That 'Fly' Underwater
animals.howstuffworks.com/birds/penguins.htm
HowStuffWorks looks at penguins, the tuxedoed swimming birds who mate for life and swim like Olympic champs.