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How Does a Breathalyzer Work?
electronics.howstuffworks.com/gadgets/automotive/breathalyzer.htm
A roadside sobriety test of touching one's nose or walking a straight line cannot rule out a high blood alcohol concentration. That's why the Breathalyzer is such a game-changer. But how does a Breathalyzer work? Read on to find out!
How Space Wars Will Work
science.howstuffworks.com/space-war.htm
Weapons in space that can knock down missiles have been under development for years and are starting to look realistic. Learn how they will work!
How Valentine's Day Works
people.howstuffworks.com/culture-traditions/holidays-other/valentine.htm
Was there really a saint named "Valentine"? And why all the flowers and chocolate? Learn all about the origins and symbols of Valentine's Day.
How Flash Memory Works
computer.howstuffworks.com/flash-memory.htm
Flash memory is a compact, flexible type of storage. Learn about types of flash memory, removable flash memory and uses of flash memory.
How Hammerhead Sharks Work
animals.howstuffworks.com/fish/sharks/hammerhead-shark.htm
Hammerhead sharks are funny-looking and not very dangerous to humans. Why do hammerhead sharks have that odd head? Explore the world of hammerheads.
What happened to the two other men on Paul Revere's ride?
history.howstuffworks.com/history-vs-myth/paul-revere-ride.htm
What happened to the two other men on Paul Revere's ride? Paul Revere wasn't alone. Find out what happened to the two other men on Paul Revere's ride.
Could Jack the Ripper have been an artist?
history.howstuffworks.com/history-vs-myth/jack-the-ripper-artist.htm
The 1888 Jack the Ripper murders plagued London; now, Ripperologists seek the killer's identity. Learn how Jack the Ripper murders stumped the constabulary.
How can the moon generate electricity?
science.howstuffworks.com/moon-generate-electricity.htm
Moon electricity is generated from the moon's gravitational influence over tides on the Earth's surface. Learn how moon electricity is created from tides.
Who owns the oceans?
science.howstuffworks.com/environmental/earth/oceanography/international-water.htm
International water covers 71 percent of the Earth's surface and includes five oceans. Learn how international water is shared among all the nations.
Why don't pandas hibernate?
animals.howstuffworks.com/mammals/panda-hibernation.htm
If pandas are called bears, then do pandas hibernate like other bears? Find out whether pandas hibernate and the reason behind the answer.