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10 Innovations in Water Purification
science.howstuffworks.com/environmental/green-tech/sustainable/10-innovations-water-purification.htm
As far back as 1500 B.C.E., people were trying to purify water to make it drinkable. And we're still at it. Today inventors use tools as simple as clay and as sophisticated as carbon nanotubes to bring clean water to the world.
How Temper Tantrums Work
people.howstuffworks.com/temper-tantrum.htm
Do temper tantrums point to poor parenting skills, or are they a natural part of growing up? Read about temper tantrums at HowStuffWorks.
10 20th-Century Staples We Never Thought Would Die
A lot of folks once thought these 10 things would never become obsolete. Learn about 10 20th-century staples we never thought would die at HowStuffWorks.
How Nostalgia Works
science.howstuffworks.com/life/inside-the-mind/human-brain/nostalgia.htm
Nostalgia, contrary to centuries of common knowledge, appears to be a good thing. A really good thing.
10 Job Titles That Have Been Around for 2,000 Years
money.howstuffworks.com/ten-2000-year-old-jobs.htm
Some jobs are so critical to everyday life that they've never gone out of style. Learn about 10 job titles that have been around for 2,000 years.
How the U.S. President Works
people.howstuffworks.com/president.htm
The U.S. president is someone who can help shape the world due to his or her incredible power. Find out about the various roles and responsibilities of the president.
What Are the 10 Worst Torture Methods and Why?
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The most prevalent forms of torture have been identified in a book by the CODESRIA organization. Learn about the most prevalent forms of torture.
How Men Work
people.howstuffworks.com/men.htm
The idea that men are better at math and science than women are is one of many stereotypes that doesn't hold up well under scientific scrutiny. Learn exactly what makes men different from women and find out whether other common perceptions about men are accurate.
How Women Work
people.howstuffworks.com/women.htm
If you believe what you see on TV, women are inscrutable, conniving, hysterical and apt to change their minds without reason or warning.
How Netflix Works
electronics.howstuffworks.com/netflix.htm
Netflix is a highly successful online movie rental service. Find out how the Netflix movie rental system works and learn about the Netflix shipping process.