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How do proximity-type Christmas-light testers work?
home.howstuffworks.com/home-decor/seasonal/question270.htm
Proximity Christmas light testers detect the alternating electromagnetic waves in the lights. Learn more about proximity Christmas light testers.
How do the automobile ignition keys with chips embedded in them work?
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/question282.htm
A friend of mine just bought a new car and it has a neat security feature. The ignition key has what looks like a microchip embedded in it. The owners manual says that without this chip, the engine either will not start or will start and then die immediately. How does this microchip on the key prevent the engine from starting?
Forget Aspirin for Heart Health: Eat Tomato (Seeds) Instead
health.howstuffworks.com/wellness/food-nutrition/facts/heart-health-tomato-seeds.htm
Doctors often advise patients with cardiovascular problems, including high blood pressure, to take a daily aspirin to improve blood flow and prevent clots. However, aspirin tends to have a nasty side effect: over time, you may develop ulcers due to irritation to your stomach from taking it.
Airplane Seat Cushions: Stealthy Fart Filters of the Future?
science.howstuffworks.com/transport/flight/modern/airplane-seat-cushions-fart-filters-of-future.htm
There are so many tweaks we wish airlines would implement, especially if future seat configurations mean stacking passengers with butts suspended above heads.
How Spy Flies Will Work
science.howstuffworks.com/spy-fly.htm
Gathering reconnaissance during battle typically puts small teams of soldiers in harm's way. Tiny robotic flyers, called micro air vehicles (MAVs), could do away with this danger. Learn all about spy flies.
How Smart Windows Work
home.howstuffworks.com/home-improvement/construction/green/smart-window.htm
With energy bills on the rise, homeowners are looking for new ways to use less power around the house. A cutting-edge window technology called the "smart window" allows consumers to fully or partially block light by turning a knob or pressing a button.
How Monopoly Works
entertainment.howstuffworks.com/leisure/brain-games/monopoly.htm
Monopoly is one of the world's most popular board games with a storied history. But how do you even win this long game of monopolizing money?
The Ultimate German Car Quiz
play.howstuffworks.com/quiz/the-ultimate-german-car-quiz
Fancy yourself as an aficionado when it comes to German cars? Do you know your Audis from your BMWs, your Mercedes from Volkswagen? Then show us that you can finish first in the Ultimate German Car Quiz.
How the Clapper Works
home.howstuffworks.com/clapper.htm
"Clap-on, clap-off"! The Clapper is one of the 20th century's most iconic inventions. Learn all about the Clapper and how it works.
How Bug Zappers Work
home.howstuffworks.com/bug-zapper.htm
Bug zappers can help keep your backyard free of pesky insects. Find out how bug zappers kill insects and take a look at the inside of a bug zapper.