Hurricanes

How Hurricanes Work

While tropical storm Gustav pummels Haiti, forecasters are predicting it could regain hurricane status before it reaches Cuba. What does that mean for those residents in its path?

FAA

How the Federal Aviation Administration (FAA) Works

A communication failure at an FAA facility caused numerous flight delays around the United States on Tuesday. What damage could have been done to the planes in the air?

Worst Epidemics

10 Worst Epidemics

A hospital in San Francisco is warning 960 new mothers that they and their newborns may have been exposed to tuberculosis. Is that the worst epidemic they could be exposed to?

Magnet Cows

How Magnets Work

Scientists are beginning to pay more attention to the fact that many animals may be magnetically oriented after pictures from Google Earth revealed that cows align themselves north-south. How does this magnetic sense work?

Marathon Style

How a Marathon Works

When it comes to pounding the pavement for 26.2 miles, you might think that there are some tricks of the trade. According to one study that examined Olympic marathoners, there’s no formula for success when it comes to stride and arm movement.

Alcohol

How Alcohol Works

Several college presidents, including those at Duke, Dartmouth and Ohio State, are urging lawmakers to consider changing the legal drinking age from 21 to 18. They argue that current laws actually encourage dangerous binge drinking on campus.

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keep asking: stuff you wanna know

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Why does synthetic testosterone make muscles bigger?
 - Every Olympics, it seems the topic of performance-enhancing drugs is back in the news. Find out what types of drugs athletes use, what their side effects are and how they're identified.

Q:
Which came first: the chicken or the egg?
 - Rick, Littleton, Colo.

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today's trivia

What year did Dr. Martin Luther King, Jr. give his famous "I Have a Dream" speech at the Lincoln Memorial?

trivia trivia