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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 the Sun Works
science.howstuffworks.com/sun.htm
The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth. Learn about the sun.
How the Electoral College Works
people.howstuffworks.com/electoral-college.htm
As we learned in the 2000 election, the electoral college plays a huge role in the election process. Learn how the electoral college works!
How Movie Projectors Work
entertainment.howstuffworks.com/movie-projector.htm
When you see a movie in the theater, do you notice the projector? Without it, you'd be staring at a blank screen. Enter the projection booth and learn what it takes to show a movie.
How Income Taxes Work
money.howstuffworks.com/personal-finance/personal-income-taxes/income-tax.htm
If you've ever filled out a 1040, you know the U.S. tax system and the agency that keeps it going are complex and mystifying entities. Get the lowdown on this essential piece of the U.S. government.
How Light Microscopes Work
science.howstuffworks.com/light-microscope.htm
The human eye misses a lot -- enter the incredible world of the microscopic! Explore how a light microscope works.
How Alcatraz Worked
people.howstuffworks.com/alcatraz.htm
Alcatraz was built to house the worst criminals and said to be impossible to escape. See pictures of Alcatraz and go inside Alcatraz prison to meet its inmates.
How Voyager Works
science.howstuffworks.com/voyager.htm
The Voyager program launched two unmanned probes into space. The Voyager spacecrafts captured amazing images and made incredible scientific discoveries.
How the ZeroHouse Works
home.howstuffworks.com/zero-house.htm
The zeroHouse may be costly to build, but the zeroHouse could certainly save you on energy bills. Read more about the zeroHouse.
How DNA Profiling Works
science.howstuffworks.com/dna-profiling.htm
How DNA profiling works involves creating a DNA profile. Learn how DNA profiling works and how a DNA profile works.