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How does a master key work?
home.howstuffworks.com/home-improvement/household-safety/question710.htm
A master key can open many different types of locks. Find out how a master key works.
Can I eat anything I want as long as I drink red wine?
recipes.howstuffworks.com/food-facts/red-wine.htm
If you drink red wine, does that mean you can eat whatever you want? Learn how research indicates that drinking red wine can delay the aging process.
What are the symptoms of atrial fibrillation?
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/how-atrial-fibrillation.htm
Atrial fibrillation is serious heart disease, but it's treatable if diagnosed early. Learn about EKGs, echocardiograms and other tests that detect AF symptoms.
How Do Artificial Flavors Work?
science.howstuffworks.com/question391.htm
Ever wondered exactly what they "artificial flavors" in your candy are, and why no specific ingredients are listed? Find out in this article.
How To Keep Woodpeckers Away
home.howstuffworks.com/how-to-get-rid-of-woodpecker.htm
Would you like to get rid of a woodpecker that's disturbing your peace and quiet and destroying your house? Read this article to learn how to get rid of a woodpecker.
The First 'Killer Robot' Was Around Back in 1979
science.howstuffworks.com/first-killer-robot-was-around-back-in-1979.htm
With the Campaign to Stop Killer Robots heating up, we step back a few decades to look at the first human death by robot.
'Fire Rainbows' and 'Sun Dogs': Weird Weather in the Smartphone Age
Smartphone cameras enable us to take striking pictures of strange atmospheric phenomena-though we don't always know what we're seeing.
What Does the Term 'Six Degrees of Separation' Mean?
science.howstuffworks.com/math-concepts/six-degrees-separation.htm
It's seeped into movies and popular culture, but what does "six degrees of separation" really mean? Are we really that connected to each other?
Elk vs. Moose Antlers and Mating Behavior (Yes, They're Related)
animals.howstuffworks.com/mammals/elk-vs-moose.htm
Elk vs. moose comparisons are a lot easier to make when you realize that two of the largest members of the deer family differ significantly in size, behavior and appearance.
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.