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How Tire Pressure Gauges Work
auto.howstuffworks.com/pressure-gauge.htm
If you have a car, chances are you also have a tire-pressure gauge. Learn how this pen-sized device measures air pressure and why the little stick inside doesn't just fly right out the back!
What Was the Christmas Truce?
history.howstuffworks.com/historical-events/christmas-truce.htm
The Christmas Truce stands as a point of sanity in an otherwise chaotic environment in World War I. Find out what the Christmas Truce was and how it worked.
What were the famous Blaise Pascal inventions?
science.howstuffworks.com/innovation/famous-inventors/famous-blaise-pascal-inventions.htm
What were you doing at age 16? Blaise Pascal, a precocious 17th century French teenager, had already come up with his very own theorem. Some of Pascal's ideas even made it to the casino floor. How did this polymath affect your world?
What Are Imaginary Numbers?
science.howstuffworks.com/math-concepts/imaginary-numbers.htm
An imaginary number is a value that's the square root of a negative number. It can't exist on a one-dimensional number line. We'll explain.
The Fast and Furious Peregrine Falcon Is a Midair Hunting Machine
animals.howstuffworks.com/birds/peregrine-falcons-are-one-fastest-animals-alive.htm
While the cheetah is the fastest land animal in the world, the peregrine falcon, a large predatory raptor, is by far the fastest bird on planet Earth.
Can We Get Into Space Without Big Rockets?
science.howstuffworks.com/can-get-into-space-without-big-rocket.htm
Visionaries have proposed various ways to get into space without using large rockets for propulsion, such as building a space elevator or harnessing magnetic levitation.
Insane Speed Records Are Broken at Bonneville Salt Flats
auto.howstuffworks.com/auto-racing/motorsports/bonneville-salt-flats.htm
World speed records are set and broken at the Bonneville Salt Flats every year. What makes the area so conducive to speed? HowStuffWorks investigates.
Every Single Living Thing Is Part of an Ecosystem. Here's How They Work
science.howstuffworks.com/life/biology-fields/ecosystem.htm
How do we consider a Thing with no edge? Ecosystem ecologists are always trying.
'Disheveled,' 'Disgruntled': Why Are Some Words Only Used in Negative Form?
people.howstuffworks.com/lonely-negative.htm
No one ever says "heveled" or "gruntled." Do these words even exist? Not every word needs an opposite to prop it up. Here's why.
How Do Birds Know When to Fly South and Where to Go?
animals.howstuffworks.com/birds/bird-migration.htm
During the fall months, you may see unfamiliar birds in your area as those from the north begin to fly south. But how do they know when it's time to migrate and where to go?