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Why Some Coin Images Don't Face Left
money.howstuffworks.com/question775.htm
The coin images on a penny and nickel face a different direction than other U.S. coins, but why? Learn about coin images and coin faces in this article.
Why do you hear some radio stations better at night than in the day?
electronics.howstuffworks.com/question1.htm
Have you ever noticed a difference in the quality of radio signals depending on the time of day? See how radio signals and the Earth interact.
How Long Do Helium Balloons Last?
science.howstuffworks.com/question10.htm
Scenario: A helium balloon is up against the ceiling one day, and the next day it's on the floor. Does the balloon fall because the helium leaks out, or because the helium molecules slow down due to decreased pressure?
Why does the hair on your arms stay short, while the hair on your head can grow very long?
health.howstuffworks.com/skin-care/hair-care/scalp-treatments/question100.htm
Hair growth varies on different parts of our body, but have you ever wondered why that is? Learn about hair growth in this article.
Do the humps on camels hold water?
animals.howstuffworks.com/mammals/question104.htm
Do the humps on camels hold water? Get the facts at HowStuffWorks
What's the difference between gasoline, kerosene, diesel, etc?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/question105.htm
What's the difference between gasoline, kerosene and diesel? Learn how crude oil's carbon chains determine whether it becomes gasoline, kerosene or diesel.
What is a cavity in a tooth? Why do they drill it?
health.howstuffworks.com/wellness/oral-care/problems/question106.htm
What is a cavity in a tooth? Why do they drill it? If a cavity is a hole, why would you drill it to make the hole even bigger?
Why doesn't paper money disintegrate when it gets washed in the washing machine?
money.howstuffworks.com/question108.htm
When I leave a normal piece of paper in my pocket and it gets washed in the washing machine, it totally disintegrates. But if I leave a dollar bill in my pocket and wash it, it comes out intact. What is the difference?
How does a computer's parallel port work?
computer.howstuffworks.com/question11.htm
How does a computer's parallel port work? And how can you design things to attach to a parallel port ?
What Is the Difference Between Two- and Three-pronged Plugs?
electronics.howstuffworks.com/everyday-tech/question110.htm
Some appliances use three prongs to connect to an outlet, while others only use two. Learn the difference between two- and three-pronged plugs.