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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.
10 Press Exposés That Made a Difference
people.howstuffworks.com/10-press-exposes-that-made-difference.htm
Journalists have brought to national attention lots of issues that would otherwise remain hidden. Learn about some of them at HowStuffWorks.
How Midterm Elections Work
people.howstuffworks.com/midterm-elections.htm
Midterm elections in the U.S. don't get the public excited the way presidential elections do. But there's a lot at stake, actually, during these contests. Why do midterms exist, anyway?
How Drone Strikes Work
science.howstuffworks.com/drone-strikes.htm
We know how drone strikes are supposed to work: After careful monitoring, the bad guy is targeted and taken out. The reality is often much hazier - and deadlier.
10 Worst Things Ever to Happen at Christmas
The Holidays are supposed to be full of joy, but sometimes it isn't. Check out some of the worst things to ever happen on Christmas at HowStuffWorks.
10 Times It Has Rained Something Other Than Water
Frogs! Fish! Birds! A surprising number of things have rained down from the sky besides water. But how?
How Much Does a Semi Truck Weigh?
science.howstuffworks.com/engineering/civil/question626.htm
So, how much does a semi truck weigh? We'll explore what a semi truck weighs and how weigh stations work.
Is there really a face on Mars?
science.howstuffworks.com/face-on-mars.htm
The face on Mars stunned observers in the 1970s. Learn if this formation is the colossus of a human face or simply an interesting rock formation.
What's the world's cheapest car?
auto.howstuffworks.com/worlds-cheapest-car.htm
The world's cheapest car has been making headlines with a low price of two thousand dollars. Learn more about the world's cheapest car.
Where can I recycle my old electronics?
electronics.howstuffworks.com/everyday-tech/electronics-recycling.htm
If you're lucky enough to unwrap a sweet new smartphone or PS3 this year, what are you going to do with that relic you've been using up to now? Learn about electronics recycling.