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Voltage Tester
home.howstuffworks.com/voltage-tester.htm
A voltage tester is an essential tool to have when handling electrical wires. Learn about this simple tool and how it can help you with your next electrical project.
How Semiconductors Work
electronics.howstuffworks.com/diode.htm
Semiconductors form the heart of modern electronics. Learn about semiconductors, silicon, doping, diodes and other fascinating technologies.
Why do we get headaches?
health.howstuffworks.com/diseases-conditions/headache/question648.htm
Headaches are one of the most common medical complaints, but why do we get them? Find out what causes headaches and what the types of headaches are.
What does the weight mean on a can of motor oil?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question164.htm
Motor oil weight depends on viscosity and other factors. Learn how motor oil weight is determined in this article.
How Exercise Works
health.howstuffworks.com/wellness/diet-fitness/exercise/sports-physiology.htm
Exercise creates a set of responses in your body, whether you work out regularly or not. Find out how these responses can be enhanced by training.
Why Syncing Traffic Lights May Not Reduce Congestion
Ever get red light after red light when you're driving? Often, it's because traffic lights aren't synced to each other. But would doing so really fix traffic problems?
What Is a Watt?
science.howstuffworks.com/environmental/energy/question501.htm
Amps, volts, watts, and ohms are the main units used for measuring electricity. Find out how amps, watts, volts, and ohms relate to electricity.
How Serial Ports Work
computer.howstuffworks.com/serial-port.htm
Serial ports have been an important I/O tool for decades. Learn how they work!
How Tankless Water Heaters Work
home.howstuffworks.com/tankless-water-heater.htm
The green movement is bringing tankless water heaters to the forefront of the appliance market. They last longer, don't take up much space and give you as much hot water as you want. Is there a catch?
How Viagra Works
science.howstuffworks.com/viagra.htm
Viagra is one of the best-known drugs of all time. Nearly every adult in America has heard of the drug and can tell you what it does. Find out how this high-profile medication works its magic.