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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 BIOS Works
computer.howstuffworks.com/bios.htm
The basic input-output system (BIOS) is the first thing you see when you turn on your computer. Learn all about BIOS.
How Winemaking Works
science.howstuffworks.com/innovation/edible-innovations/winemaking.htm
From Beaujolais to Bordeaux, Madeira to Merlot and Sancerre to Shiraz, wine can complement almost any food. And, one glass of red wine daily may be a heart-healthy habit. Learn how wine is made, from grapes to glass!
How Rotary Engines Work
auto.howstuffworks.com/rotary-engine.htm
A rotary engine works completely differently than the conventional piston engine. Learn what makes a rotary engine unique among engines.
Are Polar Bears Endangered?
science.howstuffworks.com/environmental/green-science/polar-bear-global-warming.htm
Polar bears and global warming are getting attention from conservationists and the general public. See why polar bears are threatened by global warming.
Here's How To Tell a Dead Tree from a Healthy One
home.howstuffworks.com/diseased-or-dead-tree.htm
It's sometimes difficult to know if your tree is diseased or dead. Read this article to learn how you can tell if your backyard tree is dead or diseased.
How Hybrid System Indicators Work
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/hybrid-system-indicators.htm
Hybrid system indicators monitor more than just speed and fuel consumption. Learn how hybrid system indicators help drivers stay green.
Pet Sitters 101
animals.howstuffworks.com/pets/pet-travel/pet-sitters.htm
Pet sitters do a job that many people would turn their nose at. Learn all about pet sitters at Animal Planet.
What was Archimedes' death ray?
history.howstuffworks.com/historical-figures/archimedes-death-ray.htm
Archimedes' death ray is a fabled device that brought death and destruction to Roman ships. Learn about Archimedes' death ray and what it was made of.
Does Stress Really Make Your Hair Go Gray?
health.howstuffworks.com/wellness/aging/aging-process/stress-gray-hair.htm
Does stress really cause gray hair? Explore this article to find out where gray hair comes from and what role stress plays in its development.