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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!
Oral Glucose Tolerance Test
health.howstuffworks.com/diseases-conditions/diabetes/oral-glucose-tolerance-test.htm
Oral glucose tolerance test measures your glucose levels. Learn more about the oral glucose tolerance test from Discovery Health.
Why DNA Evidence Can Be Unreliable
science.howstuffworks.com/why-dna-evidence-can-be-unreliable.htm
DNA found at a crime scene doesn't automatically mean the person matching it is guilty, say researchers of new forensics guide.
How Do Scientists Determine the Age of Dinosaur Bones?
science.howstuffworks.com/environmental/earth/geology/dinosaur-bone-age.htm
Every time a new fossil is found, one of the first things scientists determine is how old that fossil really is. But how do they determine it, and how can they be completely accurate?
How Do Television Ratings Work?
entertainment.howstuffworks.com/question433.htm
How do television ratings work? How do they figure out how many people are watching a show?
Men's Beards Carry More Bacteria Than Dogs' Fur, Study Suggests
science.howstuffworks.com/life/cellular-microscopic/more-bacteria-mens-beards-dogs-fur.htm
Do men's beards harbor more microbes than a dog's fur does? HowStuffWorks looks at a study that says yes.
Hunting for Martians in the Most Extreme Desert on Earth
science.howstuffworks.com/hunting-for-martians-in-most-extreme-desert-on-earth.htm
Life-hunting rovers are going to Mars in 2020. HowStuffWorks tracks their adventures on Earth and wonders what the Martian life will be named, if found.
Interquartile Range: How to Calculate and Visualize IQR
science.howstuffworks.com/math-concepts/interquartile-range.htm
The interquartile range (IQR) is a statistical measure of the middle values of a sample data set that is separated into four equal parts. This middle-value grouping can provide a median range between the upper half and lower half of the data you've collected, allowing you to ignore extreme values.
Wedding Catering Tips
lifestyle.howstuffworks.com/weddings/planning/wedding-planning-tips/wedding-catering-tips.htm
These wedding catering tips will help you figure out exactly what you need. Learning a few wedding catering tips and relieve your stress.
5 Reasons to Get Your Stomach Pumped
health.howstuffworks.com/medicine/5-reasons-to-get-your-stomach-pumped.htm
There are some important reasons to get your stomach pumped. See the top five reasons to get your stomach pumped at HowStuffWorks to learn more.