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What are the dangers of hydrogen-powered vehicles?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/hydrogen-vehicle-danger.htm
What are some of the chemical dangers that might be associated with hydrogen-powered vehicles? Read about the hydrogen-powered vehicle dangers.
Is ethanol really more eco-friendly than gas?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/ethanol-facts.htm
Ethanol facts help sort out which is better, ethanol or gas? Learn about ethanol facts, and find out if ethanol is more eco-friendly than gas.
How A Fetus Grows
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fetal-development/how-a-fetus-grows.htm
The fetus grows from an embryo into a baby ready for birth. Read how a fetus grows
How to Prepare Your Car for Winter
Do you know how to prepare your car for winter properly? Read these tips on how to prepare your car for winter so you'll be prepared for ice or snow.
How tall can a tree grow?
science.howstuffworks.com/life/botany/tree-grow.htm
Can a tree grow and grow? Or can a tree grow only to the point that water transport limits it? Learn more about tree growth and the tallest trees.
How did a shipwreck double the size of the United States?
history.howstuffworks.com/history-vs-myth/el-cazador-shipwreck.htm
The El Cazador shipwreck took with it the money that was to buy the Louisiana territory for Mexico. Find out more about the El Cazador shipwreck.
How Infrared Heaters Work
home.howstuffworks.com/home-improvement/heating-and-cooling/infrared-heaters.htm
Infrared heaters are somewhat complex. Learn about how infrared heaters work at HowStuffWorks.
Flat Belly Diet: What You Need to Know
health.howstuffworks.com/wellness/diet-fitness/diets/flat-belly-diet.htm
The Flat Belly Diet has many supporters. Learn more about the Flat Belly Diet at HowStuffWorks.
Is a little stress good for you?
health.howstuffworks.com/wellness/stress-management/good-stress.htm
Is there such a thing as good stress? Learn about different types of stress and how you can benefit from good stress and hopefully avoid the bad.
How Volunteer Armies Works
money.howstuffworks.com/economics/volunteer/information/volunteer-armies.htm
Volunteer armies face a number of recruitment challenges. Learn how volunteer armies operate and how they differ from conscripted armies.