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4 Types of Hair (Plus Thick vs. Thin Hair, Porosity and More)
health.howstuffworks.com/human-body/parts/types-of-hair.htm
Hair is one of the most expressive parts of our bodies. It's a living record of our genetics, our environment and even what we had for lunch (hello, greasy roots). With all the diversity in the world, how do we begin to categorize the many types of hair out there?
What were the famous Blaise Pascal inventions?
science.howstuffworks.com/innovation/famous-inventors/famous-blaise-pascal-inventions.htm
What were you doing at age 16? Blaise Pascal, a precocious 17th century French teenager, had already come up with his very own theorem. Some of Pascal's ideas even made it to the casino floor. How did this polymath affect your world?
What Occupation Did You Have in a Past Life?
play.howstuffworks.com/quiz/what-occupation-did-you-have-a-life-learn
For those of us who believe in reincarnation or that we may have had previous lives, it's pretty fun to try to guess what we did in our past lives that makes us who we are today. So what do you think your job was?
Betrothed Through the Centuries: A Timeline of Marriage
people.howstuffworks.com/marriage-timeline.htm
Today's version of marriage looks very different from the unions enjoyed by our ancestors. For most of human history, marriage was more akin to a business deal between men, and the bride in question had very few rights or other options. So how did marriage become associated with love?
How Smart Is Your Dog?
play.howstuffworks.com/quiz/how-smart-is-your-dog
They say you can't teach an old dog new tricks, but maybe they just had kind of a dumb dog. Not all pups are created equal, after all. How about we find out how smart your pooch is? Grab your leash and take the quiz!
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?
Can You Identify These Cool Cars From the '00s?
play.howstuffworks.com/quiz/can-you-identify-these-cool-cars-from-the-00s
After all the hype that was Y2K, the 2000s had some pretty big shoes to fill! Reality television programs ruled the airwaves, and the streets were full of high-tech new introductions. Can you identify some of the coolest cars released post Y2K?
Can You Name All of These Kids Toys From the '80s?
play.howstuffworks.com/quiz/can-you-name-all-of-these-kids-toys-from-the-80s
If you're an '80s kid, you probably have a killer sense of nostalgia for the toys you played with when you were younger. From the Snoopy snow cones to robots in disguise, can you name all of these toys you had (or wanted really bad) in the 1980s?
How does a Crookes' radiometer work?
science.howstuffworks.com/question239.htm
I once saw this device shaped like a light bulb. It had a vertical support inside it, and on that support there were four vanes with four diamonds on the end. One side of the diamond was black and the other was white. I did a little research and found out that it was called a Crookes' radiometer -- how does it work?
How Much Do You Remember From "The Man From U.N.C.L.E."?
play.howstuffworks.com/quiz/how-much-do-you-remember-from-the-man-from-uncle
Super secret spy gadgets, fast cars, exciting fights and all the '60s-style haircuts you could handle! "The Man From U.N.C.L.E." had everything! Take the quiz and we'll see just how much you remember from this classic show.