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What is tooth soap?
health.howstuffworks.com/wellness/oral-care/products/tooth-soap.htm
Tooth soap isn't too different from the paste you're used to -- and it may even be cheaper. Learn all about tooth soap.
How Long Do Car Batteries Last?
auto.howstuffworks.com/how-long-do-car-batteries-last.htm
All-electric vehicles are becoming increasingly popular, so it's easy to forget that old fashioned, gas-powered cars and trucks are still reliant on electric batteries for their operation. Easy to forget, that is, until those batteries die, either permanently or temporarily. So, it's only natural to ask: How long do car batteries last?
For the Benefit of All: The NASA Quiz
play.howstuffworks.com/quiz/nasa-quiz
The National Aeronautics and Space Administration has been exploring space for more than 50 years. How much do you know about the scientists, engineers, pilots and machines that carried America into space?
What Is Saliva and How Does It Change the Taste of Food?
health.howstuffworks.com/human-body/systems/digestive/saliva-change-food.htm
Saliva is not exactly the most appetizing of subjects, but it plays an important role in everything from how food tastes to how it is digested.
Crow Symbolism and Meaning: Exploring the Wise Bird
people.howstuffworks.com/crow-symbolism.htm
Explore profound Crow Symbolism. Unveil meanings & cultural significance. Delve into the mystical world of Crow Symbolism.
How Airport Security Works
science.howstuffworks.com/transport/flight/modern/airport-security.htm
According to the Department of Homeland Security 730 million people travel on passenger jets every year. Are these folks safe? Find out how high-tech solutions are being used to make flying as safe as possible.
How Houseflies Work
animals.howstuffworks.com/insects/housefly.htm
Though houseflies scavenge and carry disease, houseflies also provide food for the local ecosystem. Learn why houseflies love the great indoors.
How Guitar Pedals Work
electronics.howstuffworks.com/gadgets/audio-music/guitar-pedal.htm
Guitar pedals can create a variety of sound affects. Learn different guitar pedal techniques and types of guitar pedals at HowStuffWorks.
10 Outrageous Cartoon Moments That Use Real Physics
entertainment.howstuffworks.com/10-cartoon-moments-physics.htm
In among the suspended falls and running into painted tunnels, animation sometimes uses real science. Here are 10 real physics moments in cartoons.
How Biodegradation Additives Work
science.howstuffworks.com/environmental/green-science/biodegradation-additives.htm
Plastic's handy, hardy stuff, but we don't want to leave piles of old forks and water bottles for future generations to trip over. Can special additives that break down plastics faster save the day?