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Why does smoke come from a fire?
science.howstuffworks.com/environmental/energy/question43.htm
Let's say you have a nice fire going, and it's reduced down to a pit of hot "glowing embers." If you now toss a piece of wood, or even a sheet of paper, onto this fire, you see a huge puff of smoke as it heats up.
Why Does Your Body Temperature Rise When You Have a Virus Such as the Flu?
science.howstuffworks.com/life/cellular-microscopic/question45.htm
Your body temperature rises when you have a virus, such as the flu, but why? Find out what causes a rise in your body temperature when you're sick.
How do you write the chemical reaction that takes place in a smoke detector?
science.howstuffworks.com/question5.htm
Chemical formulas provide a concise explanation for reactions. In this article, we explain the formula for the reaction in a smoke detector.
What Is Leap Year? And Why Was 1900 a Non-leap Year?
science.howstuffworks.com/science-vs-myth/everyday-myths/question50.htm
February is an unusual month, especially when it comes to leap years. In this article, you can read about why we use leap years and how the year 2000 was a leap year and 1900 was not.
Why do people have red eyes in flash photographs?
electronics.howstuffworks.com/question51.htm
Why do people have red eyes in some flash photographs? Take a look at the science behind why red eyes happen.
What is a MiniDisc and how does it differ from a CD?
electronics.howstuffworks.com/question55.htm
What is a MiniDisc and how does it differ from a CD?
What is the function of the fan in a refrigerator?
home.howstuffworks.com/question6.htm
You refrigerator is already cold, right? So then, why does it need a fan? Find out in this article.
What does it mean when a hard disk has a head crash?
computer.howstuffworks.com/question60.htm
I was using my computer the other day and it suddenly started to make a high-pitched squealing sound and then stopped working. When I took it in for repair, the service guy said that my hard disk had had a "head crash" and died, taking all of my data with it. What happened?
Why Does the Phone Still Work When the Electricity Goes Out?
electronics.howstuffworks.com/question62.htm
The power goes out fairly often for most people, but your telephone, is always working. Learn why the phone works even when the electricity goes out.
Why do many foods have High Altitude Cooking Instructions?
recipes.howstuffworks.com/tools-and-techniques/question63.htm
Most any packaged food that involves boiling will have "high altitude" cooking instructions. Find out what this means and why it matters in cooking.