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How Ultrasound Works
science.howstuffworks.com/ultrasound.htm
Ultrasound lets us peek into the human body to see everything from heart valves to a moving baby. But how do sound waves give us a picture?
How Does a Breathalyzer Work?
electronics.howstuffworks.com/gadgets/automotive/breathalyzer.htm
A roadside sobriety test of touching one's nose or walking a straight line cannot rule out a high blood alcohol concentration. That's why the Breathalyzer is such a game-changer. But how does a Breathalyzer work? Read on to find out!
How to Start a Carpool
auto.howstuffworks.com/fuel-efficiency/fuel-economy/start-carpool.htm
A carpool saves money, helps the environment and allows members to talk before work/school. Learn how to start a carpool and about carpool etiquette.
Is fluoride considered a poison in most European countries?
health.howstuffworks.com/wellness/oral-care/products/fluoride-poisoning.htm
Fluoride is commonly added to drinking water but could be dangerous. Learn about fluoridation and fluoride poisoning.
The Best and Worst Paying Jobs
money.howstuffworks.com/personal-finance/best-worst-paying-jobs.htm
Some of the best and worst paying jobs aren't what you would expect. Learn more about the best and worst paying jobs at HowStuffWorks.
How Watersheds Work
science.howstuffworks.com/environmental/conservation/issues/watershed.htm
You're probably standing in one right now, but do you know what a watershed is and how watersheds work? Learn how watersheds work here.
How Asbestos Works
home.howstuffworks.com/home-improvement/household-safety/asbestos.htm
Asbestos has been around for 3,000 years, but it wasn't until the 1980s that we realized its dangers. Learn more about asbestos.
Can the IRS tax virtual money?
money.howstuffworks.com/personal-finance/personal-income-taxes/virtual-tax.htm
Can the IRS tax virtual money? Find out the answer at HowStuffWorks.
How the reactable Works
electronics.howstuffworks.com/gadgets/audio-music/reactable.htm
The reactable is a collaborative music synthesizer that works by placing and moving blocks on top of a table. Learn about the reactable.
Baby Skin Information
health.howstuffworks.com/skin-care/information/skin-types/baby-skin.htm
Ever wonder why a baby's skin is so soft? Visit HowStuffWorks to learn all about baby skin.