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Were people vying to become slaves in the Ottoman Empire?
history.howstuffworks.com/history-vs-myth/slaves-ottoman-empire.htm
Some Ottoman slaves were volunteers, believe it or not. Read about the devsirme system and the appeal of becoming an Ottoman slave.
How Doctors Without Borders Works
money.howstuffworks.com/economics/volunteer/organizations/doctors-without-borders.htm
Doctors Without Borders provides medical help to war-torn or other devastated areas. Learn what it takes to work with Doctors Without Borders.
Can New York City's Skyscrapers Accommodate Vertical Farming?
science.howstuffworks.com/environmental/conservation/issues/vertical-farming.htm
Vertical farming is a method of large-scale farming in an urban environment. Learn about the benefits of a vertical farm and vertical farming technology.
What Is the Greenhouse Effect? Is It Inherently Bad?
science.howstuffworks.com/environmental/green-science/question746.htm
We'd be up a creek without Earth's atmosphere and the greenhouse effect it provides, but it turns out that an overactive greenhouse effect can result in a similarly devastating outcome.
What If We Ended War?
science.howstuffworks.com/science-vs-myth/what-if/what-if-end-war.htm
Would we stick flowers in our hair and dance in the street? Or twiddle our thumbs and wonder what to do with all that new free time? Join us as we ponder a world without war.
Can Adults Use a Slip 'N Slide?
entertainment.howstuffworks.com/backyard-fun-games/adults-use-slip-n-slide.htm
Can adults use a Slip 'N Slide? Find out whether adults can use a Slip 'N Slide at HowStuffWorks.
What will the Earth look like in 50,000 years?
science.howstuffworks.com/life/evolution/earth-50000-years.htm
The Earth in 50,000 years will most likely be a very different place. Learn about the Earth in 50,000 years in this article.
How The Pythagorean Theorem Helps Solve a Right Triangle
science.howstuffworks.com/math-concepts/pythagorean-theorem.htm
The Pythagorean theorem, which explains how to calculate the longest side of a right-angled triangle, is an ancient mathematical statement that still buttresses modern-day construction, aviation and even how we navigate through traffic.
How Thanksgiving Works
people.howstuffworks.com/culture-traditions/holidays-other/thanksgiving.htm
Today, many associate the holiday less with pilgrims and American Indians and more with football and turkey. What's the real story of Thanksgivig Day?
How Missionaries Work
money.howstuffworks.com/economics/volunteer/information/missionaries.htm
Missionaries have a complex and controversial history. Read this article to learn how missionaries have performed their work over the centuries.