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How the Panama Canal Makes Water Flow Uphill
science.howstuffworks.com/engineering/structural/panama-canal.htm
The Panama Canal has been one of the world's biggest engineering feats since it was built nearly by hand in the 1900s.
Epidemiologists Are the 'Disease Detectives' Protecting Public Health
health.howstuffworks.com/medicine/healthcare/epidemiologists.htm
Who do you call when there's a new disease outbreak? An epidemiologist. These disease detectives investigate the who, what, why, when and where of epidemics worldwide.
The Destiny Lore Quiz
play.howstuffworks.com/quiz/the-destiny-lore-quiz
In a battle of Light versus Darkness, the last vestiges of humanity against sinister and terrifying forces from all corners of the galaxy, how much of the lore of Destiny do you know? Head to the Last City and take the quiz!
12 Countries With Red and White Flags
Countries with red and white flags sometimes pick those colors because they often symbolize historical sacrifice and purity.
What Is the Oldest Country in the World? Depends on Your Criteria
history.howstuffworks.com/world-history/oldest-countries-in-the-world.htm
With constantly changing borders and governments, identifying the oldest countries in the world is tricky work.
What Are the World's Smartest Pets and Animals?
animals.howstuffworks.com/animal-facts/smartest-pets.htm
If you think dog and cats are the world's smartest pets, you're right. But there are others too. Which smart animals top the list?
Can You Pass This Basic Trivia Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-basic-trivia-quiz
Do your friends ask you to tag along to trivia night, or are you always left out? Once you pass this basic trivia quiz, you'll prove why you deserve the invitation, or why you should stay at home! Which one will it be?
Can You Name All of These Animals That Start With Vowels?
play.howstuffworks.com/quiz/can-you-name-all-of-these-animals-that-start-with-vowels
There are more animals out there than can be named, so we thought we would start with just the ones that begin with a vowel. Jump into this quiz and see if you can name them as well!
The Order of Assassins Was Very Real and Very Deadly
history.howstuffworks.com/world-history/order-of-assassins.htm
The Nizari Ismaili were some of the most feared assassins in the turbulent medieval Middle East. They used secret techniques to survive against enemies with bigger armies. That is until they finally met their match.
What Is the Rarest Zodiac Sign? Discover the Least Common Star Sign & Its Unique Traits
entertainment.howstuffworks.com/horoscopes-astrology/what-is-the-rarest-zodiac-sign.htm
Uncover the surprising answer, learn why it’s so uncommon, and discover the unique traits that set this star sign apart from the rest.