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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 Speakers Work
electronics.howstuffworks.com/speaker.htm
The best amplifier, receiver and CD player won't do you much good, if you don't have good speakers. Speakers are the final step in the stereo process -- the key component that turns electronic data into sound.
How Night Vision Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision.htm
Most of us instinctively think of darkness as a way to hide. Night vision has changed all that. So, how can you see someone standing over 200 yards away on a pitch-black night? Find out.
Depression Overview
health.howstuffworks.com/mental-health/depression/facts/depression.htm
Understanding how depression works can help improve daily life and health problems. Learn about how depression works, from causes to treatments.
Does human growth hormone slow the aging process?
health.howstuffworks.com/wellness/aging/anti-aging-tips/hgh-aging.htm
HGH aging prevention is a hot topic. Could this hormone reduce wrinkles, increase muscle mass and more? Take a look at HGH aging prevention.
How NORAD Works
science.howstuffworks.com/norad.htm
NORAD is a military operation that is jointly run by the United States and Canada. Learn about NORAD and the unique location for the NORAD headquarters.
How Sump Pumps Work
home.howstuffworks.com/sump-pump.htm
Sump pumps help keep your basement or crawlspace dry. Learn how to find out whether you need a sump pump and how to choose and maintain one.
How Mac OS X Works
computer.howstuffworks.com/macs/mac-os-x.htm
The Mac OS X was launched in 2001 with the Cheetah. Where did Mac OS X come from, and what technologies make it different from other operating systems?
How Dopamine Works
science.howstuffworks.com/life/inside-the-mind/human-brain/dopamine.htm
You could call dopamine the most misunderstood neurochemical in the brain. It's allegedly the cause of people getting addicted to drugs, chocolate or video games. But what does really dopamine do?
8 Jobs AI Will Replace and 8 It Won't (Yet)
electronics.howstuffworks.com/future-tech/jobs-ai-will-replace.htm
The release of the AI software ChatGPT has made many people nervous about the future of their jobs. Which areas of work seem most vulnerable to AI?