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How Lie Detectors Work
people.howstuffworks.com/lie-detector.htm
Lie detection is a consistently controversial topic -- how can a machine tell truth from deception? Does everyone have the same physiological reaction when telling a lie? If so, how can some people "beat the box"? Find out what these devices measure and if they really can detect lies.
How Induction Cooktops Work
home.howstuffworks.com/induction-cooktops.htm
If you're looking for a way to modernize your kitchen, you may be considering induction cooktops. Learn about induction cooktops.
Where does cork come from?
home.howstuffworks.com/question550.htm
We can find cork in just about any wine bottle. Have you ever wondered where the cork comes from and how is the cork made into a bottle stopper? Find out the answer to those questions in this article from HowStuffWorks.
What are natural gas generators?
auto.howstuffworks.com/fuel-efficiency/fuel-saving-devices/natural-gas-generator.htm
What are natural gas generators? Keep reading to learn about natural gas generators and how they are used.
Is a car really an investment?
auto.howstuffworks.com/buying-selling/is-car-really-investment.htm
A car should only be considered an investment if it's a collectible classic. Learn more about whether a car is really an investment at HowStuffWorks.
How Cell-phone Radiation Works
electronics.howstuffworks.com/cell-phone-radiation.htm
Cell-phone radiation has been debated for years now. Find out what the buzz is about and how to protect yourself when choosing and using a cell phone.
Do biofuels compete with food?
auto.howstuffworks.com/fuel-efficiency/biofuels/biofuels-compete-with-food.htm
Do biofuels compete with food? Read about whether or not crops are going to vehicles to the detriment of our food supply.
10 Things You Need to Know About Wood Pellet Fireplaces
To save money, many people are considering alternative heat sources, and wood pellet fireplaces are one possible solution to rising energy costs. But what do you need to know before you head out to buy one of these energy savers?
How do they measure sea level?
science.howstuffworks.com/environmental/earth/oceanography/question356.htm
How do they measure "sea level"? Is it the average of the tides? And is the sea level actually rising or not?
Is biofuel a reasonable (and safe) jet fuel alternative?
auto.howstuffworks.com/fuel-efficiency/biofuels/biofuel-reasonable-safe-jet-fuel-alternative.htm
Biofuel is safer for the environment but is biofuel a reasonable and safe jet fuel alternative? Find out more with this article by HowStuffWorks.com.