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What makes a cheetah run so fast?
animals.howstuffworks.com/mammals/cheetah-speed.htm
What makes a cheetah run so fast? Learn why a cheetah runs as fast as it does, and find out how cheetah anatomy allows it to reach top speeds.
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!
How Smoke Detectors Work
home.howstuffworks.com/home-improvement/household-safety/smoke.htm
As the saying goes, "Where there's smoke, there's fire." Smoke detectors are amazing: They're pretty inexpensive, but they save thousands of lives each year. Learn all about nuclear and light-sensing smoke detectors.
Why does orange juice taste bad after you brush your teeth?
health.howstuffworks.com/mental-health/human-nature/perception/orange-juice-toothpaste.htm
Why does orange juice taste bad after you brush your teeth? Learn about the sense of taste and studies on why orange juice tastes bad after brushing.
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.
How Sequential Gearboxes Work
auto.howstuffworks.com/sequential-gearbox.htm
Combine the ease of an automatic with the driver control of a manual, and what you've got is a sequential manual transmission. A simple forward push advances the gear. Learn all about the sequential gearbox.
How Can Light Kill Viruses?
science.howstuffworks.com/life/cellular-microscopic/light-virus.htm
Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future.
How could a hotel orbit the Earth?
science.howstuffworks.com/hotel-orbit-earth.htm
A space hotel is currently under development by a European firm called Galactic Suite Limited. Learn about the development of the world's first space hotel.
How the FSF-1 Sea Fighter Works
science.howstuffworks.com/sea-fighter.htm
Nations are facing a more guerilla-style warfare - even at sea, and the equipment must evolve to meet new demands. Enter the Sea Fighter. Learn about this experimental, high-speed, "invisible" ship.
How to Treat a Fever Blister
health.howstuffworks.com/skin-care/lip-care/health/treat-a-fever-blister.htm
Want to know how to treat a fever blister? Visit HowStuffWorks to learn how to treat a fever blister.