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Railroad Expansion
history.howstuffworks.com/american-history/railroad-expansion.htm
The railroad expansion of the middle and late 1800s changed America forever. Read more about the westward expansion of railroads.
Why are eels slippery?
animals.howstuffworks.com/marine-life/eels-slippery.htm
Eel skin is slippery for a reason. The slime layer helps it to slither through tight spaces and protects it from parasites. Learn why eels are slippery.
Why Is Yawning Contagious?
science.howstuffworks.com/life/inside-the-mind/human-brain/contagious-yawn.htm
Contagious yawning is associated with the same parts of the brain that deal with empathy, according to a recent study. Learn about contagious yawning.
Can you test your fertility at home?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/test-your-fertility-at-home.htm
Can you test your fertility at home? Visit Discovery Fit & Health to learn if you can test your fertility at home.
How to Improve Your Skin with Mint
health.howstuffworks.com/skin-care/problems/treating/improve-skin-with-mint.htm
Mint is quite beneficial to skin. Learn how to improve your skin with mint at HowStuffWorks.
Where Does the U.S. Vice President Live?
history.howstuffworks.com/american-history/where-vice-president-lives.htm
Since the mid-1970s, vice presidents have had use of a mansion on the grounds of the U.S. Naval Observatory, a short distance from the White House.
The Salty History of Swearing Like a Sailor
people.howstuffworks.com/swearing-like-sailor.htm
Ever heard anyone say, "He swears like a sailor"? Why do sailors get singled out for being extra-profane? Because there's a long, colorful history behind it.
Are Pentagon-confirmed UFOs a National Security Threat?
science.howstuffworks.com/space/aliens-ufos/ufos-news.htm
Recently, there's been a spike in UFO sightings - officially UAP, or Unidentified Aerial Phenomena - all over the world and nobody seems to know why or what the objects we're seeing might be.
What exactly is a right-to-work state?
people.howstuffworks.com/right-to-work-state.htm
What exactly is a right-to-work state? Find out about the controversial laws that constitute a right-to-work state.
How to Recycle Tires
auto.howstuffworks.com/recycle-tires.htm
Recycling tires can help protect the environment. Read this article and learn how to recycle tires.