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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.
Do female praying mantises decapitate their mates?
animals.howstuffworks.com/insects/do-female-praying-mantises-decapitate-their-mates.htm
The male praying mantis has long been the butt of procreation jokes, but does he deserve this? Learn about praying mantis rituals at HowStuffWorks.
Do Processed Foods Have 'Bliss Points'?
recipes.howstuffworks.com/processed-foods-bliss-points.htm
Chowing down on an entire bag of chips doesn't happen by accident. HowStuffWorks looks at why that snack is designed to be irresistible.
Can China control the weather?
science.howstuffworks.com/nature/climate-weather/meteorologists/cloud-seeding.htm
Weather control is being looked at by Chinese officials as a way of ensuring clear skies for the Olympic Games. Read about weather control methods.
How Laser Communication Works
science.howstuffworks.com/laser-communication.htm
When speed is everything and light marks the universe's speed limit, lasers are bound to be the answer. At least, that's what NASA and a bunch of Wall Street types are betting on.
If I Plant Trees in My Yard, Will It Offset Global Warming?
home.howstuffworks.com/gardening/garden-design/global-warming-plant-trees.htm
If you plant trees in your yard, will it really help the planet? Find out how much carbon dioxide a tree absorbs and why you should plant trees.
Unveiling the Mysteries of Ball Lightning: Is It Real?
science.howstuffworks.com/nature/climate-weather/atmospheric/ball-lightning.htm
Ball lightning wasn't widely believed to exist until the 1960s. Learn about ball lightning and theories about what ball lightning could be.
Are air fresheners bad for your health?
home.howstuffworks.com/home-improvement/household-safety/air-freshener-dangers.htm
Air freshener dangers? How could something that's simply supposed to freshen the scent in the air be dangerous. Learn about air freshener dangers.
How can you make water invisible?
science.howstuffworks.com/environmental/earth/oceanography/invisible-water.htm
Magicians say invisible water exists, and they often prove it by floating a small boat on thin air. Learn the magic behind the invisible water trick.
How Galileo Fought the Catholic Church and Became the First Superstar ScientistÂÂ
history.howstuffworks.com/historical-figures/galileo.htm
Galileo Galilei made breakthroughs in physics and astronomy. Along the way, he fought for intellectual freedom and became the first celebrity scientist.