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How Hydraulic Machines Work
science.howstuffworks.com/transport/engines-equipment/hydraulic.htm
Hydraulic machines do most of the heavy hauling and lifting on most construction projects. Learn about hydraulic machines and types of hydraulic machines.
How Acid Rain Works
science.howstuffworks.com/nature/climate-weather/atmospheric/acid-rain.htm
Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides from power plants, cars and factories. Find out how acid rain is produced.
How Wall Fountains Work
home.howstuffworks.com/wall-fountain.htm
Wall fountains are popular for adding aesthetic value to a room as well as creating a relaxing atmosphere. Learn all about wall fountains.
Can You Match the Character to the Right Western TV Show?
play.howstuffworks.com/quiz/can-you-match-the-character-to-the-right-western-tv-show
The West has been wild on TV for over 70 years now! That's a long history of cowboy hats and outlaws right there. If you think you know your TV Westerns, then, by all means, rope in this quiz and see what you can do, partner!
How Good Is Your Plumbing Vocabulary?
play.howstuffworks.com/quiz/how-good-is-your-plumbing-vocabulary
There's more to plumbing than just unclogging toilets and making sure the dishwasher works, you know. There's a whole world of lingo to get to know and plenty of specialized terms. Snake your way into this quiz and see what you know!
How Hair Hanging Works
entertainment.howstuffworks.com/arts/circus-arts/hair-hanging.htm
Hair hanging is a stunt involving performers doing tricks all while being suspended by their hair. Learn the secrets behind of hair hanging.
The Tools Quiz
play.howstuffworks.com/quiz/the-tools-quiz
Don't go hammering the wrong thing because you think you know what tools are supposed to be used for. Why don't you take this quiz to prove to us that you actually know when and where to use them? Can you really identify all these tools?
How and why do bats hang upside down all day?
animals.howstuffworks.com/mammals/question668.htm
Bat roosting is unusual in that bats hang upside down when they are sleeping or resting. Learn about bat roosting and why bats hang upside down.
Do whales and dolphins sleep?
animals.howstuffworks.com/mammals/question643.htm
Whale sleep patterns are different from land mammals in that they are never really unconscious when they sleep. Learn about whale sleep patterns.
Can you make time stand still?
science.howstuffworks.com/science-vs-myth/everyday-myths/question618.htm
Making time stand still is explained in this article. Learn about making time stand still.