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8 Most Densely Populated Cities in the World
history.howstuffworks.com/world-history/most-densely-populated-city.htm
Statistically, over half of the people reading this article live in a city, with a higher population density than rural or suburban areas. For instance, New York City has nearly 27,000 people crammed into each square mile (2.6 square km) of land.
How Do Animals Survive Major Storms?
animals.howstuffworks.com/animal-facts/do-animals-survive-major-storms.htm
Miraculously many animals are able to ride out some of Mother Nature's most powerful storms. HowStuffWorks looks at just how they do it.
Can I convert my car to run on water?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/water-fuel.htm
Water for fuel in lieu of oil is a breakthrough technology -- we might break our addiction to oil. Read more about the promise of water for fuel.
What's a shark's "yummy hum"?
animals.howstuffworks.com/fish/sharks/shark-yummy-hum.htm
A yummy hum is a sound that dying fish emit -- it's like a dinner bell to a shark. Read about the theory of the yummy hum and how it beckons sharks.
5 Ideas for Doubling the World's Food Supply
With the world's population expanding and its arable land shrinking, how in the world are we going to have enough food to feed everyone? Here are five ways.
Should You Save Your Baby's Umbilical Cord Blood?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/labor-delivery/umbilical-cord-blood.htm
Umbilical cord blood usually gets thrown away as medical waste, but maybe you should keep it. Umbilical cord blood is an important source of CBE stem cells.
How do high FSH levels affect getting pregnant?
How do high FSH levels affect getting pregnant? Visit HowStuffWorks to learn how high FSH levels affect getting pregnant.
What If Medical Science Cured All Diseases?
science.howstuffworks.com/science-vs-myth/what-if/what-if-cure-disease.htm
What if medical science cured all diseases? Explore the hypothetical and discover what might happen if medical science cured all diseases.
What Do You Remember About These John Hughes Classics?
play.howstuffworks.com/quiz/what-do-you-remember-about-these-john-hughes-classics
Did you think you got the DAY OFF? Ha! Test your classic teen-movie knowledge (and so much more) with this quiz. Don't worry; if you get any wrong, we won't LAMPOON you for it.
9 War Photographers and Their Images That Moved Millions
history.howstuffworks.com/world-history/war-photographers.htm
Photographers have been risking their lives since the Civil War to bring back images from the front lines. Not just to document history, but to show the uncensored, gritty version of battle to those of us who never have to face danger.