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How Millimeter Wave Scanners Work
science.howstuffworks.com/millimeter-wave-scanner.htm
If you've traveled recently, you probably raised your arms above your head and waited for a millimeter wave scanner to do its screening thing. During those 10 seconds or so, did you ever wonder exactly how the device produced your image?
Just How Many Galaxies Are in the Universe?
science.howstuffworks.com/dictionary/astronomy-terms/galaxy.htm
Galaxies are large systems of stars, gas, dust and dark matter that orbits a center and is bound by gravity. Learn about the characteristics of galaxies.
10 Most Game-Changing Developments in the TV Industry
entertainment.howstuffworks.com/10-most-game-changing-developments-in-tv-industry.htm
Many things have contributed to America's obsession with the boob tube. See 10 of the biggest developments in the TV industry to learn more.
How Power Door Locks Work
auto.howstuffworks.com/power-door-lock.htm
Power door locks used to adorn only luxury cars. Today, these handy amenities are standard on more than half of the cars sold in America. Learn what happens after you push the button!
1942-1944 Jeep: Jeep Enters World War II
auto.howstuffworks.com/1942-1944-jeep.htm
The 1942-1944 Jeep entered World War II and became an instant success in battle. Learn about the versatility and war feats of the World War II jeep.
10 Ways Technology Can Save People From Storms
science.howstuffworks.com/nature/climate-weather/storms/10-ways-technology-save-people-storms.htm
A very strong storm doesn't automatically mean death or destruction. You can improve the odds of surviving intact with reinforcements to your home. Plus, scientists are improving their forecast methods. Let's look at high-tech and low-tech storm alerts.
How 9-1-1 Works
people.howstuffworks.com/9-1-1.htm
911 gives people a single, easy-to-remember number to call in life-threatening situations. Learn how 911 has adapted to new cell phone and VoIP technology.
How Clocks Work
electronics.howstuffworks.com/gadgets/clocks-watches/clock-roundup.htm
Clocks come in many different forms, from quartz watches to atomic clocks. Take a peek inside and learn what makes each kind tick.
How do motion sensing lights and burglar alarms work?
home.howstuffworks.com/home-improvement/household-safety/question238.htm
How can motion-sensing lights detect your presence, and what prevents them from seeing you when you're standing still? It all comes down to the movement of light.
What is a Concussion?
health.howstuffworks.com/human-body/systems/nervous-system/what-is-a-concussion-.htm
Worried that your child has a concussion? Learn to recognize the symptoms of a concussion and what causes them.