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What can your spit tell you about your DNA?
science.howstuffworks.com/life/genetic/spit-dna.htm
Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.
How to Make Your Home Handicap Accessible
home.howstuffworks.com/home-improvement/remodeling/how-to-make-your-home-handicap-accessible.htm
If you have someone that is handicapped, it's important to make your home handicap accessible. Learn how to make your home handicap accessible.
How to Volunteer for Search and Rescue
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-for-search-and-rescue.htm
Ever wonder how to volunteer for search and rescue? Visit HowStuffWorks to learn everything about how to volunteer for search and rescue.
How Gas Pumps Work
auto.howstuffworks.com/gas-pump.htm
Gas pumps are one of those little things you interact with all the time, but don't know much about. Learn about gas pumps at HowStuffWorks.
How Bioluminescence Works
animals.howstuffworks.com/animal-facts/bioluminescence.htm
Bioluminescence is an organism's ability to produce light through a chemical reaction. Learn about bioluminescence and how bioluminescent organisms produce light.
How Lawn Tillers Work
home.howstuffworks.com/lawn-garden/professional-landscaping/lawn-tiller.htm
Lawn tillers are used to till the soil, which is the first thing you'll need to do before you plant a garden or lawn. Learn more about lawn tillers.
How AVID Editing Machines Work
entertainment.howstuffworks.com/avid-editing-machine.htm
Avid editing machines are used by professional video and film editors to assemble a final product from raw footage. Learn more at HowStuffWorks.
How Flintlock Guns Work
science.howstuffworks.com/flintlock.htm
Flintlock guns were extremely important weapons in the American Revolution; they also formed the foundation of all modern guns. Learn about the gun that started it all.
20 Notable People Who Dropped Out of School
people.howstuffworks.com/15-notable-people-who-dropped-out-of-school.htm
These 20 people, including Thomas Edison, Princess Diana and Benjamin Franklin, achieved notable success in life, even after dropping out of school.
How Reincarnation Works
people.howstuffworks.com/reincarnation.htm
Reincarnation is the concept that the soul, or some aspect of the soul, is reborn into new lives. Learn about the concept of reincarnation in Eastern religion.