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How Geothermal Energy Works
science.howstuffworks.com/environmental/energy/geothermal-energy.htm
Geothermal energy is clean, abundant and renewable. Learn about geothermal energy, geothermal heat pumps and geothermal power plants.
Why Do Spotted Hyenas Laugh?
animals.howstuffworks.com/mammals/hyenas-laugh.htm
We all remember the laughing hyenas from "Lion King", but who knows why these canines laugh? We do. Find out why spotted hyenas laugh in this article.
Will the Hayflick limit keep us from living forever?
science.howstuffworks.com/life/genetic/hayflick-limit.htm
With the discovery of the Hayflick limit, we know that cells could divide forever without dying. So can humans live forever? Explore the Hayflick limit.
How Pre-Collision Systems Work
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/pre-collision-systems.htm
Pre-collision systems are designed to prevent accidents. Learn all about pre-collision systems at HowStuffWorks.
Special K Diet: What You Need to Know
health.howstuffworks.com/wellness/diet-fitness/diets/special-k-diet.htm
The Special K Diet is quite simple. Learn more about the Special K Diet at HowStuffWorks.
How the Hybrid Tax Credit Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/hybrid-tax-credit.htm
Hybrid cars offer tax incentives. Learn more about hybrid tax credits at HowStuffWorks.
Can pets make you happy?
science.howstuffworks.com/life/inside-the-mind/emotions/pets-happiness.htm
Can pets make you happy? Find out if pets can make you happy at HowStuffWorks.
How to Become a Volunteer Firefighter
money.howstuffworks.com/economics/volunteer/opportunities/become-volunteer-firefigher.htm
Would you like to become a volunteer firefighter? Visit HowStuffWorks and learn all about how to become a volunteer firefighter.
How Project C.U.R.E. Works
money.howstuffworks.com/economics/volunteer/organizations/project-cure.htm
Project C.U.R.E donates medical supplies to developing countries. Learn Project C.U.R.E works and how you can get involved.
How Volunteers of America Works
money.howstuffworks.com/economics/volunteer/organizations/volunteers-of-america.htm
Volunteers of America give aid to needy families, children and individuals. Learn about the mission and activities of Volunteers of America.