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How do those yo-yos with the special clutches work?
entertainment.howstuffworks.com/question158.htm
Some of the newer yo-yos have a special "clutch" system that, when the yo-yo slows down, makes the yo-yo come up by itself. How does this work?
Can you make a rocket engine using hydrogen peroxide and silver?
science.howstuffworks.com/question159.htm
At a drag race, I once saw a rocket car that was supposedly powered by spraying hydrogen peroxide on a silver mesh. The resultant reaction produced huge amounts of pure white smoke and apparently enough thrust to propel the car rapidly down the track. Does hydrogen peroxide really react with silver that way?
How can ozone be both good and bad?
science.howstuffworks.com/environmental/green-science/question162.htm
During the summer I am always hearing about ozone warnings in my city. This ozone is bad. But then I hear about the ozone layer, which is good. How can ozone be both good and bad?
How does a bubble jet printer work?
computer.howstuffworks.com/question163.htm
How does a bubble jet printer work?
In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?
home.howstuffworks.com/question166.htm
In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?
What does a V-chip do and how does it work?
electronics.howstuffworks.com/question167.htm
Do you know what the v-chip does in your TV? Learn how a v-chip detects TV ratings and gives parents the ability to control viewing of violent content.
Why Do Apples and Potatoes Turn Brown When Sliced?
recipes.howstuffworks.com/question168.htm
Why do apples and potatoes turn brown when you slice them? How do you keep them from turning brown? Find out the answer in this article.
How does a Star Wars lightsaber work?
entertainment.howstuffworks.com/question171.htm
How do the lightsabers in the "Star Wars" movies work?
How Do Exhaust Headers on a Car Work?
auto.howstuffworks.com/question172.htm
Headers can be used to improve the performance of your car's engine. Learn about headers and find out how exhaust headers can improve engine performance.
What do the yellow and black wires in a home telephone jack do?
electronics.howstuffworks.com/question176.htm
With all the different colored wires used in communications, what do the yellow and black wires in a home telephone jack do?