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Could You Dig a Tunnel Right Through the Center of Earth?
science.howstuffworks.com/environmental/earth/geophysics/question373.htm
Let's say you have a lunch date to make - and it's on the other side of the planet. Wouldn't it be convenient to pop down a hole through Earth's innards? But what would really happen if you did?
How Vestigial Organs Work
health.howstuffworks.com/human-body/parts/vestigial-organ.htm
Vestigial organs are like the body's junk drawer. Learn about the body's vestigial organs and how Darwin's idea of common descent might explain them.
Can manatees see underwater?
animals.howstuffworks.com/mammals/manatees-see-underwater.htm
Manatees see poorly underwater, with the aid of two very small eyeballs. Learn how manatees see underwater and navigate with such poor vision.
How Stock Car Telemetry Works
auto.howstuffworks.com/auto-racing/nascar/nascar-basics/stock-car-telemetry.htm
Stock car telemetry helps racers make tweaks to their vehicles before big races. Learn more about stock car telemetry at HowStuffWorks.
Nail Polish 101
health.howstuffworks.com/skin-care/nail-care/tips/nail-polish.htm
Are you wondering how nail polish works? Learn about how nail polish works and whether it's good or bad for your nails.
5 Signs You Should See the Doctor for Your Heartburn
health.howstuffworks.com/diseases-conditions/digestive/5-signs-to-see-doctor-for-heartburn.htm
Do you need to see a doctor for heartburn? Take a look at this of the top five signs that you should see a doctor for heartburn.
1946 Beechcraft Plainsman Concept Car
auto.howstuffworks.com/1946-beechcraft-plainsman-concept-car.htm
The 1946 Beechcraft Plainsman concept car was an airplane maker's ugly folly. See a profile and pictures of the 1946 Beechraft Plainsman concept car.
How Thought-Controlled Wheelchairs Work
computer.howstuffworks.com/audeo.htm
Thought-controlled wheelchairs intercept signals from the brain using an ambient audeo system. Read more about how thought-controlled wheelchairs work.
How Spud Guns Work
home.howstuffworks.com/spud-gun.htm
A spud gun can hurl potatoes hundreds of feet at close to 400 miles per hour. But why is this staple of the dinner table such a popular projectile? Learn the science of spud guns and how they can be customized.
How Unimogs Work
auto.howstuffworks.com/unimog.htm
The first Unimog prototypes were created in 1947. Read about the history and development of the Unimog truck.