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Your search for "mass" returned 2,216 results
What is a birthmark?
health.howstuffworks.com/skin-care/problems/baby/question628.htm
I noticed a light brown spot emerge on my newborn son's forehead when he was about three days old. It never went away. Everyone calls it a birthmark. What is a birthmark?
How do a zebra's stripes act as camouflage?
animals.howstuffworks.com/mammals/question454.htm
I've heard that the black and white stripes on a zebra provide camouflage. How can this be if they're not in a black-and-white environment?
10 Totally Twisted Pretzel Facts
recipes.howstuffworks.com/pretzel-facts.htm
In the 1,400 years since the pretzel was invented, bakers have come up with a wide variety of shapes and flavors. Read this article of pretzel facts.
Inside a TV Remote Control
electronics.howstuffworks.com/inside-rc.htm
A fascinating look inside a TV's remote control (including the printed circuit board)!
1977 MV Agusta 750S America
auto.howstuffworks.com/1977-mv-agusta-750s-america.htm
The 1977 MV Agusta 750S America motorcycle was one of the last street bikes produced by MV Agusta. See pictures and learn about the 750S America.
What Type of Witchcraft Should I Practice?
play.howstuffworks.com/quiz/what-type-of-witchcraft-should-i-practice
All witches, all very different. With all the various types of magic out there, which one should you practice as a witch? Take this quiz to find out!
Reel vs. Real History: How Accurate Are Your Favorite Movies?
entertainment.howstuffworks.com/reel-history-quiz.htm
Everyone knows that Hollywood dramas are no substitute for a good history teacher. We're looking at what 10 "based on a true story" movies got wrong - or right. It's not always what you think!
Floating Fire Ant Rafts Are Horrifying, Dangerous, Really Cool
animals.howstuffworks.com/insects/fire-ant-rafts-colony-flooding.htm
What's the danger of floating fire ant colony rafts? Learn more about the insect survival strategy in this HowStuffWorks article.
Can fluoride make your teeth yellow?
health.howstuffworks.com/wellness/oral-care/products/fluoride-make-teeth-yellow.htm
Too much fluoride can make your teeth yellow, but only if you're a pee-wee under the age of 8. Learn if fluoride can make your teeth yellow.
The Yellow Sac Spider Surprisingly Doesn't Build a Web
animals.howstuffworks.com/arachnids/yellow-sac-spider.htm
The yellow sac spider is one of the most common spiders humans encounter, as they're often wandering indoors or hanging out in gardens. Scientists also believe they account for more human insect bites than any other spider.