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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 Luminol Works
science.howstuffworks.com/luminol.htm
Have you seen investigators on crime shows who spray some stuff on a "clean" carpet and suddenly -- blood stains! Well, of all the fictional technology on TV, it turns out this stuff is real! Find out how luminol reveals the blood.
Repairing Insect Damage to Your Home
You're cleaning up your lovely home one day when your vacuum cleaner attachment goes right through your wood floor! What does this mean for your home and how do you fix it?
How Radioactive Cleanup Works
science.howstuffworks.com/radioactive-cleanup.htm
It's lunchtime, and you've spastically spilled soda all over your desk. Chances are you could tackle that mess faster than we could say "Mr. Clean." What do you do though when the spill is radioactive?
Is Chlorine Bleach? How to Use Chlorine-based Cleaning Products
science.howstuffworks.com/question189.htm
I recently used chlorine bleach to clean the siding on my house, and I was amazed at how well it worked! What is bleach? How does it remove stains? Is the chlorine in bleach the same as the chlorine in drinking water or in swimming pools? Is chlorine safe to use?
How Wireless Power Works
electronics.howstuffworks.com/everyday-tech/wireless-power.htm
Unless you are particularly organized and good with tie wrap, you probably have a few dusty power cord tangles around your home. Find out how methods of wireless power transmission could cut the clutter or lead to clean sources of electricity.
10 Things Your Dry Cleaner Doesn't Want You to Know
He runs a mysterious universe where clothes soak in chemical baths and hundreds of hanging plastic bags march in formation at the push of a button. We take you inside your dry cleaner's world and explain why it costs $7 to clean your silk shirt.
Can You Name The Original Song If We Give You the KIDZ BOP Lyrics?
play.howstuffworks.com/quiz/can-you-name-the-original-song-if-we-give-you-the-kidz-bop-lyrics
Love your lyrics sanitized? It's time to face the music in this battle of "good vs. evil" song lyrics! Can you recognize these tunes with their clean-up Kidz Bop lingo? Don't be afraid to sing out loud; we won't judge.
What's the Difference Between a Fuel Cell Vehicle and a Hydrogen-on-Demand Vehicle?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/fuel-cell-difference.htm
A major hurdle to hydrogen-as-car-fuel is the public perception that hydrogen cars are unsafe. Read this article to find out if hydrogen cars are safe.
How to Repair Central Air Conditioners
Central air conditioners have two basic components. Learn how the evaporator and condenser work so that you will be able to repair your central air.