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Is the amount of mercury in CFLs more dangerous than the amount in fish?
science.howstuffworks.com/environmental/green-science/cfl-mercury.htm
Mercury in CFLs and fish are the best known sources of mercury exposure. Learn about mercury in CFLs and fish and find out which should cause more concern.
Why Do We Traditionally Clean Our Homes At the Beginning of Spring?
With your checklist and cleaning supplies in hand, you're ready to scrub your house from top to bottom. But where does this seasonal tradition come from?
Is a Dead Stingray's Sting Still Lethal?
animals.howstuffworks.com/marine-life/dead-stingray-still-lethal.htm
Is a dead stingray sting still lethal? It's not likely, but a dead stingray's sting will still hurt a lot. Read about a dead stingray's sting here.
How Electric Car Conversion Kits Work
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/electric-car-conversion-kits.htm
Electric car conversion kits are growing in popularity. Learn more about electric car conversion kits at HowStuffWorks.
How Automatic Solar Panel Cleaning Systems Work
science.howstuffworks.com/environmental/green-tech/sustainable/solar-panel-cleaning-system.htm
Automatic solar panel cleaning makes solar panels far more efficient. Visit HowStuffWorks to learn all about automatic solar panel cleaning.
Windows Down or A/C on — Which Is More Fuel-efficient?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/driving-with-windows-down.htm
How do you know when you should be driving with your windows down? Read this article to find out when you should be driving with your windows down.
Can a car get 100 miles per gallon?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/100-mpg-car.htm
The 100 mpg car is being promoted by Google.org in an effort to reduce oil use and harmful emissions. Learn all about Google's 100 mpg car program.
Chicxulub Crater: Where the End of the Dinosaurs Began
science.howstuffworks.com/environmental/earth/geology/chicxulub-meteor.htm
The Chicxulub meteor impact may have killed off the dinosaurs. Would they have lived if the meteor missed? Learn more about the Chicxulub meteor.
Will we soon be extinct?
science.howstuffworks.com/life/evolution/mass-extinction.htm
A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.
T-34 Medium Tank
science.howstuffworks.com/t-34-medium-tank.htm
The T-34 Medium Tank had few amenities but enough power to help the Soviets beat back a Nazi invasion in World War II. Explore the T-34 Medium Tank.