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What does the computer in a car do?
auto.howstuffworks.com/under-the-hood/trends-innovations/question113.htm
What does the computer in a car do? What was the Y2K scare about our cars starting?
How does Pop Rocks candy work?
science.howstuffworks.com/innovation/science-questions/question114.htm
There's a candy called 'Pop Rocks.' When you put it in your mouth it makes a loud popping sound and it feels really weird! How do Pop Rocks work?
Why Does Hydrogen Peroxide Bubble When You Put It on a Cut?
science.howstuffworks.com/innovation/science-questions/question115.htm
Hydrogen peroxide is something that is used to clean cuts. Have you ever wondered why it foams when placed on a cut? Learn about hydrogen peroxide.
How Does a GFCI Outlet Work?
home.howstuffworks.com/question117.htm
In my bathroom there is a plug that has a "Test" and a "Reset" button. When I push the "Test" button, it cuts off the current to the outlet. What is this? How is it different from the fuse in the fuse box?
How Is Helium Made?
science.howstuffworks.com/question12.htm
Helium is the second lightest element on the Periodic Table. How is helium created?
What is a heart bypass operation?
health.howstuffworks.com/medicine/surgeries-procedures/question120.htm
What does it mean when someone has a heart bypass operation?
What is the ideal temperature for a refrigerator?
home.howstuffworks.com/question121.htm
You know that the purpose of a refrigerator is to slow down the growth of bacteria, but what temperature should you set your refrigerator to so that it slows bacteria, but doesn't hurt food that doesn't freeze well? Find out in this article.
Turbo Vs Supercharger: Comparing Car Engine Boosters
auto.howstuffworks.com/question122.htm
Forced induction systems compress the air that flows into an engine, which creates more horsepower. Learn about the types of forced induction systems.
What Are Decibels, and How Are They Measured?
science.howstuffworks.com/question124.htm
The decibel scale measures sound based on human hearing, which makes it one of the most unusual scientific measurements. How are decibel calculated and what do they tell us about sound?
How Do Catapults Work?
science.howstuffworks.com/transport/engines-equipment/question127.htm
How does the ancient catapult work? It doesn't seem like twisted rope and wooden gears or levers would be able to get up the speed to launch heavy loads a great distance.