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Can we make tailpipes that capture CO2?
auto.howstuffworks.com/tailpipe-capture-co2.htm
Tailpipes that capture CO2 would make a dent in humans' contributions to greenhouse gas emissions. Learn about tailpipes that capture CO2 and if they exist.
How much extra gasoline would Americans use if daytime running lights were mandatory?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/drl-gas-consumption.htm
Daytime running lights use gas to stay lit when the car is on. Learn how daytime running lights use gas and the amount it takes to power these lights.
Why Annie Oakley Was America's Sharpshooting Sweetheart
history.howstuffworks.com/american-history/annie-oakley.htm
Annie Oakley was the leading lady of the American West. She could outshoot and outride most men of her time. And she did it all while in a Victorian dress.
Gale Halderman: Creating the 1965 Ford Mustang Prototype
auto.howstuffworks.com/gale-halderman.htm
Gale Halderman sketched the first Ford Mustang, and then shepherded his design into production. Read his own account of creating the iconic car.
What is hypermiling?
auto.howstuffworks.com/auto-racing/nascar/nascar-basics/hypermiling.htm
Hypermiling is a driving technique designed to maximize fuel efficiency. Learn how to use hypermiling to save gas here.
What's a walk score?
science.howstuffworks.com/environmental/green-science/walk-score.htm
A walk score is a measure of your neighborhood's walkability. Learn about what a walk score is and find out how the Web site Walk Score rates your walkshed.
Can humans start an earthquake?
science.howstuffworks.com/environmental/green-science/humans-start-earthquake.htm
Earthquakes are "natural" disasters, right? Yes, but that doesn't mean the shifting plates that cause them can't be aggravated by human industry.
10 Green Tips for Removing Stains
home.howstuffworks.com/green-cleaning-fabric-stain-tips.htm
Fabric stains can be frustrating and tricky. Let us guide you with our green cleaning fabric stain tips to keep your clothes stain-free naturally.
How the Ford Fusion Hybrid Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/ford-fusion-hybrid.htm
The Ford Fusion Hybrid is one of the most popular hybrids available. Learn all about the Ford Fusion Hybrid at HowStuffWorks.
Does smiling make you happy?
science.howstuffworks.com/life/inside-the-mind/emotions/smiling-happy.htm
Can smiling make you happy? Take a look at research and explanations behind whether or not smiling can make you happy.