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How does a Galileo thermometer work?
science.howstuffworks.com/how-does-a-galileo-thermometer-work.htm
One of my co-workers has an interesting thermometer on his desk. It is a glass tube with different-colored floating things in it. What kind of thermometer is this, and how does it work?
How does a ball point pen work?
science.howstuffworks.com/innovation/science-questions/question683.htm
How does a ball point pen work?
How does a chicken's egg get its shell?
science.howstuffworks.com/innovation/science-questions/question231.htm
How do chickens create eggs? Does the chicken's body make the shell and fill it with the white and yolk somehow, or does it make the white and yolk and then somehow wrap the shell around it?
How does a hydraulic ram pump work?
science.howstuffworks.com/transport/engines-equipment/question318.htm
When I was a kid, my Aunt had constantly flowing water from a natural spring down the hill. She said the water was pumped uphill using a hydraulic ram. This device ran constantly and didn't need any electricity! What is a hydraulic ram and how does it work?
How does a magneto work?
science.howstuffworks.com/question375.htm
I am curious about the ignition system in my lawn mower. I know that a spark plug creates a high-voltage spark, and I know in my car the electricity for the spark comes from the battery. My lawn mower doesn't have a battery, so where does the electricty come from?
How does a rebreather work?
science.howstuffworks.com/question632.htm
Unlike a regular SCUBA regulator which creates bubbles when the person wearing the apparatus exhales, a rebreather produces no bubbles when someone exhales. What exactly is a rebreather and how does it work?
How does a speedometer in an airplane work?
science.howstuffworks.com/transport/flight/modern/question597.htm
How does a speedometer in an airplane work?
How does an afterburner work?
science.howstuffworks.com/transport/flight/modern/question374.htm
Afterburners allow a jet plane to take off from a short runway, such as the deck of an aircraft carrier. What, exactly, is an afterburner and how do they work? Learn the answer to this question in this article from HowStuffWorks.
How does chlorine work to clean swimming pools?
science.howstuffworks.com/innovation/science-questions/question652.htm
How does chlorine work to clean swimming pools?
How does desalination work?
science.howstuffworks.com/environmental/earth/oceanography/how-does-desalination-work.htm
Desalination is the process of removing salt from water. Learn about desalination in this article from HowStuffWorks.