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What Causes Seasons? Earth's Tilt and Orbit
science.howstuffworks.com/nature/climate-weather/atmospheric/question165.htm
What causes the seasons? Why are the seasons reversed in the Northern and Southern Hemispheres? And if the Earth moves in an elliptical orbit around the Sun, why don't we have two summers and two winters every year?
What is the churning sound I hear from my hard drive whenever it is retrieving data?
computer.howstuffworks.com/question243.htm
What is the churning sound I hear from my hard drive whenever it is retrieving data?
When an aerobatic plane flies upside down, how does the fuel get to the engine?
science.howstuffworks.com/transport/flight/modern/question252.htm
I would like to know how airplanes can fly upside down and do loops. How does the fuel get to the engine if the plane is upside down?
Is it true that a diesel engine can operate under water while a gasoline engine cannot?
auto.howstuffworks.com/question429.htm
Is it true that a diesel engine can operate under water while a gasoline engine cannot?
If diesel engines are more efficient why do most cars have gasoline engines?
auto.howstuffworks.com/question399.htm
Diesel engine efficiency is greater than a regular gasoline engine, but they never really caught on. Learn about some of the diesel engine disadvantages.
Where did the moon come from?
science.howstuffworks.com/question777.htm
The origin of the moon is explained in this article. Learn about the origin of the moon.
What is a keyhole satellite and what can it really spy on?
science.howstuffworks.com/question529.htm
On a television drama last week, the plot involved photos taken of a Russian missile silo, and the characters mentioned a "keyhole satellite." What is a keyhole satellite and what can it really spy on?
Does drinking ice water burn calories?
health.howstuffworks.com/wellness/diet-fitness/weight-loss/question447.htm
When I drink ice water, does my body burn calories warming up the ice?
What do the little boxes that the phone company has around our neighborhood do?
electronics.howstuffworks.com/question400.htm
If you have underground phone wiring in your neighborhood, you'll see many of these little boxes. Learn how underground phone wiring works.
How does the ball return work on a coin-operated pool table?
electronics.howstuffworks.com/question495.htm
On a coin-operated pool table, if you hit one of the numbered balls into a pocket, the ball goes into a locked storage compartment. If you hit the cue ball into a pocket, the table returns it. How does the pool table tell the difference?