How Green Pavement Works
It's not really green. It's "green." Unlike asphalt, green pavement is permeable, which means it lets rain soak through to the ground rather than roll off. How does this help our environment?
How Personal Watercraft Work
Personal watercraft such as Jet Skis are used by millions of Americans each year, but they weren't always that popular. How did they come about, and what laws and environmental concerns govern them?
What was the Prison Project?
What if your pen pal was a prison inmate? That's the idea behind a prison project designed to connect middle school students with prisoners. What influence did these pen pals have on kids?
Can it really rain frogs?
A heavy rain in which frogs come plummeting down isn't a pretty sight, but it happens more often than you'd think. Why do animals sometimes fall from the sky?
Inside "Hancock"
When people fantasize about having super powers like Herculean strength, indestructibility or the ability to fly like the heroic icons of comic books, they're probably not thinking of Hancock. Who is he, and what can he do?
Can a car run on nuclear power?
With skyrocketing gas prices, the search for alternative fuel is on. Could a pocket-sized version of a nuclear power plant make your car run 5,000 miles between fill-ups?
Green Pavement
Personal Watercraft
Prison Project
Raining Frogs?
"Inside Hancock"
Nuclear- powered Car
Can the government see what Web sites I visit?
The government is pretty much on your side when it comes to advocating for Internet browsing freedom. But some special circumstances merit Big Brother's watchful eyes.
Can baking soda save the environment?
One company's SkyMine technology aims to capture industrial carbon dioxide emissions and turn them into an endlessly useful product: baking soda. But how do pollutants become a household staple?
How Cockroaches Work
Entomologists estimate that there are between 5 and 10 million species of insects on Earth. But if asked which insect they hate the most, many people would have no trouble choosing just one: the cockroach.
How Time Travel Will Work
Time travel has fascinated humankind for ages. And even though it may never happen, the theories surrounding the possibility of time travel are fascinating.
How Ninja Work
Secretive and silent, the ninja stalks through Japanese history like a shadow, striking fear into the hearts of peasants and emperors alike. But who are the real ninja? And what purpose do they serve?
Why can't you say "toy boat" three times fast?
Try saying "toy boat" three times fast. By the time you're done, the words will be all distorted. It's a classic tongue twister, but is it your tongue or your brain that's really tangled up?
Government Spying
Baking Soda?
Cockroaches
Time Travel
Ninja
Tongue Twister
How Emergency Rooms Work
A woman recently died on a New York psychiatric hospital emergency room floor after lying there for more than an hour without receiving assistance. Six health care workers have since been suspended or fired. How are emergency rooms supposed to work?
When is torture legal?
Videos surfaced Tuesday showing police in Leon, Mexico, practicing torture techniques on fellow officers. The police chief stated the torture was all part of training for an elite group of officers. But is torture ever legal?
How Straw Bale Houses Work
In an effort to go green, a few dozen residents of a small German town have been building their houses out of straw and clay. Doesn't it seem a little dangerous to live in a house built with blocks of straw?
How the Joker Works
Early reviews of The Dark Knight" are starting to trickle in all praising the late Heath Ledger's dramatic work. Who is this master criminal he plays?"
How Roller Coasters Work
A teenage boy was killed Saturday afternoon when he was hit by a roller coaster at Six Flags Over Georgia. Where did these mega rides come from? And are they really safe?
How Grass Works
It's the season to dust off the lawnmower and sprinkler, but be careful of your toes -- one study says that 100,000 Americans injured themselves with lawn mowers in 2006.
Emergency Rooms
Legal Torture
Straw Bale Houses
The Joker
Roller Coasters
Grass
