Search Results | united states numbered highways
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How Roundabouts Work
science.howstuffworks.com/engineering/civil/roundabouts.htm
Roundabouts aren't all that complicated, but they're still relatively rare in the U.S., especially when compared with France.
Are You a Geography Guru?
play.howstuffworks.com/quiz/are-you-a-geography-guru
The world is a large and expansive place, with lots to know and discover. But just how much do you know about the lay of the land? Fancy yourself a geography guru? If so, take on our challenge to prove it.
How E85 Ethanol Flex Fuel Works
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/how-e85-ethanol-flex-fuel-works.htm
Learn what E85 is and why some people believe this alternative fuel has the potential to reduce our nation's dependence on foreign oil.
10 Women Who Broke New Ground in Engineering
science.howstuffworks.com/engineering/structural/10-women-in-engineering.htm
One of the most travelled stretches of U.S. highway was designed by a woman who loved mathematics and wasn't interested in being a teacher. Who was she, and where is it?
Do You Know the Meaning of All of These International Road Signs?
play.howstuffworks.com/quiz/do-you-know-the-meaning-all-these-international-road-signs-learn
Stop! Yield! No Parking! If you can keep these signs straight, then this quiz is for you. Find out just how well you know the rules of the road... around the world!
How to Calculate Fuel Cost
auto.howstuffworks.com/under-the-hood/cost-of-car-ownership/calculate-fuel-cost.htm
Want to know how to calculate fuel cost? Visit HowStuffWorks to learn how to calculate fuel cost.
How Much Air Pollution Comes From Cars?
auto.howstuffworks.com/air-pollution-from-cars.htm
You see it every time smoke billows from your car's exhaust pipe. There's no denying that vehicles are major contributors to air pollution.
How an Oversize Load Works
auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/oversize-load.htm
An oversize load can be a dangerous thing to tow. Learn what constitutes an oversize load at HowStuffWorks.
Do Scientists Think an Earthquake Could Sink Western California?
science.howstuffworks.com/nature/natural-disasters/question567.htm
Do scientists really think a massive earthquake could break California in two?
Can owning a hybrid car get me an HOV decal?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/owning-hybrid-hov-decal.htm
Can owning a hybrid get me an HOV decal? Find out if owning a hybrid can get you an HOV decal at HowStuffWorks.