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How the United States Auto Club Works
auto.howstuffworks.com/auto-racing/nascar/history/united-states-auto-club.htm
The United States Auto Club (USAC) is a sanctioning body for many auto racing series. Learn more about the United States Auto Club at HowStuffWorks.
Can hybrid engines create more power?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/hybrid-engines-more-power.htm
Can hybrid engines create more power? Find out if hybrid engines can create more power at HowStuffWorks.
What's the difference between a flat tax and a fair tax?
money.howstuffworks.com/personal-finance/personal-income-taxes/flat-tax-fair-tax.htm
The flat tax and fair tax are two suggestions people have made for reforming the tax code. Learn more about flat tax and fair tax.
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
Why are sloths so slow?
animals.howstuffworks.com/mammals/sloths-slow.htm
Sloths move slowly mostly because of their vegetarian diet. Learn why sloths move slowly and how their anatomy supports such lethargy.
Why do grooms carry brides over the threshold?
people.howstuffworks.com/groom-carry-bride.htm
Tradition calls for the groom to carry bride over the threshold, and it's been that way for centuries. Read why the groom carries the bride over the threshold.
How Line Producers Work
entertainment.howstuffworks.com/line-producer.htm
Line producers are a critical part of the film making process. Learn more about how line producers work at HowStuffWorks.
Has science explained life after death?
science.howstuffworks.com/science-vs-myth/afterlife/science-life-after-death.htm
Life after death is a concept that has left some researchers wondering what causes near-death experiences. Learn about life after death theories.
Former Jobs of 12 Celebrities
entertainment.howstuffworks.com/former-jobs-of-12-celebrities.htm
Celebrities weren't always rich and famous. At one time, they had regular jobs, too. Check out the former jobs of these 12 celebrities.
Science Projects for Kids: Crystals and Minerals
Science projects for kids with crystals and minerals are great for junior geologists. Start on a science project for kids with crystals and minerals.