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Your search for "national trail system" returned 184 results
How Smokejumpers Work
science.howstuffworks.com/nature/natural-disasters/smokejumpers.htm
Smokejumpers are the men and women who specialize in fighting blazes their ground-bound peers can't reach. So who are they, and what's the "Mutilator"?
Do elephants never forget?
animals.howstuffworks.com/mammals/elephant-memory.htm
Elephants never forget might be an overstatement, but these animals do have great memories. Is it possible that elephants never forget anything?
How Gooseneck Hitches Work
auto.howstuffworks.com/auto-parts/towing/equipment/hitches/gooseneck-hitches.htm
Gooseneck hitches can make towing more convenient. Learn all about gooseneck hitches at HowStuffWorks.
Can You Guess All 50 States From an Image Of Their Outline?
Did you get an A in your geography class? Do you know the state mottos and famous landmarks that make each state unique? Prove it by challenging yourself with this quiz!
How Does a Silencer Work?
science.howstuffworks.com/question112.htm
How in the world can a gun silencer work? How can you possibly take an explosive noise that can damage your hearing and turn it into a little "ffft" sound?
How the Boston Massacre Fanned the Flames of a Revolution
history.howstuffworks.com/revolutionary-war/boston-massacre-revolution.htm
The Boston Massacre didn't start the American Revolution. But what role did the March 5, 1770, protest play? HowStuffWorks looks at the history.
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.
How American Exceptionalism Works
people.howstuffworks.com/american-exceptionalism.htm
'American Exceptionalism' is a term that's been used both positively and negatively. Find out the meanings of American Exceptionalism at HowStuffWorks.
10 Strange American Traditions
people.howstuffworks.com/culture-traditions/national-traditions/10-strange-american-traditions.htm
Americans celebrate many traditions without even considering how strange the rest of world might consider them. What do you think are some of the weirdest?
How GPS Watches Work
electronics.howstuffworks.com/gadgets/clocks-watches/gps-watch.htm
A GPS watch links to a net of synchronized computers orbiting Earth to provide you with highly accurate data. Learn what you can do with a GPS watch.