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How do you keep a safe house safe?
people.howstuffworks.com/safe-house.htm
A safe house works for both good guys and bad guys, keeping them hidden and secure. There's a safe house mentioned in the Bible, and safe houses during WWII.
How Gray Water Reclamation Works
science.howstuffworks.com/environmental/green-science/gray-water-reclamation.htm
Gray water reclamation is a developing way to reduce water waste and go green. Find out how gray water reclamation works.
How Nuclear Submarines Work
science.howstuffworks.com/nuclear-submarine.htm
Nuclear submarines are powered by nuclear reactors and may carry nuclear weapons. Read about nuclear submarines and how they changed the world's oceans forever.
How to Prepare for a Flood
science.howstuffworks.com/nature/natural-disasters/how-to-prepare-for-flood.htm
NOAA is expecting widespread flooding throughout the United States this spring. Are you ready?
The Car Cupholder Craze Is Out of Control
auto.howstuffworks.com/car-cupholder-craze-is-out-control.htm
Does anybody really need 19 cupholders in their car? Automakers seem to think so. HowStuffWorks looks at this new trend and tries to decipher it.
How the Underground Railroad Worked
history.howstuffworks.com/historical-events/underground-railroad.htm
The Underground Railroad was a network that helped runaway slaves escape to the North. Learn about the purpose and role of the Underground Railroad.
What are the dangers of mercury exposure?
home.howstuffworks.com/home-improvement/household-safety/dangers-of-mercury-exposure.htm
What are the dangers of mercury exposure? Find out the dangers of mercury exposure, how to avoid them and how to tell if you've been exposed.
Why the Korean War Still Matters
history.howstuffworks.com/historical-events/korean-war.htm
The Korean War technically ended, but is still not over. HowStuffWorks looks at the war and why it's still important today.
How the Berlin Wall Worked
history.howstuffworks.com/historical-events/berlin-wall.htm
The Berlin Wall divided a country and a city, but it had a purpose. Examine Berlin Wall history and Berlin Wall facts and see Berlin Wall pictures.
10 Unsolved Airplane Mysteries
science.howstuffworks.com/transport/flight/modern/10-unsolved-airplane-mysteries.htm
Since 1948, more than 100 aircraft have gone missing while aloft and never been found. Here are 10 unsolved airline mysteries from HowStuffWorks.