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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 Cave Dwellers Work
history.howstuffworks.com/historical-figures/cave-dweller.htm
Cave dwellers are stereotyped as heavy-browed and dim-witted. But who are the real cave people? Read about cave dwellers and their subterranean lives.
Can we control the weather?
science.howstuffworks.com/nature/control-weather.htm
To control the weather we would have to come up with some technology straight out of science fiction. Find out if we can control the weather.
How can two seemingly unrelated species that live in isolation from each other evolve into identical forms?
science.howstuffworks.com/life/evolution/parallel-evolution.htm
Parallel evolution leads two seemingly unrelated species living in isolation from each other to evolve into identical forms. How? Learn about parallel evolution.
How Glassblowing Works
entertainment.howstuffworks.com/arts/artwork/glassblowing.htm
Glassblowing may seem like a fairly recent art form, but it's really been around since the Roman Empire. Read more about glassblowing.
What is the difference between a house, a mobile home, a condominium, a co-op and a townhouse?
home.howstuffworks.com/real-estate/buying-home/question489.htm
Housing types include a house, mobile home, condominium, co-op and townhouses. Learn about the differences between these housing types.
Amphibian Pictures
animals.howstuffworks.com/amphibians/amphibian-pictures.htm
Amphibians are a diverse and unique group of animals. In this collection of Amphibian pictures, you'll find toads, frogs, caecilians, newts and more.
The Truth Behind the Most Bizarre Titanic Conspiracies
history.howstuffworks.com/history-vs-myth/colossal-conspiracies-about-why-titanic-sank.htm
There's no question the Titanic sank, but could it have been intentional? Some conspiracy theorists think so.
Growing Up in the '90s Quiz
play.howstuffworks.com/quiz/growing-up-in-90s-quiz
Kids in the '90s didn't have smartphones, Instagram or Snapchat - but they did have Nickelodeon, Game Boys and pogs. How much do you remember about the '90s? Take this quiz to test your knowledge.
4 Steps to Safely Ship Holiday Cookies
recipes.howstuffworks.com/tools-and-techniques/4-steps-to-safely-ship-holiday-cookies.htm
Everyone loves getting holiday cookies. But nobody loves getting cookie crumbles. So how do you ship your cookies so they don't break?