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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?
In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?
home.howstuffworks.com/question166.htm
In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?
Why do my ears pop when I dive in the deep end of the pool?
health.howstuffworks.com/human-body/systems/ear/question193.htm
Why do my ears pop when I dive in the deep end of the pool?
Explaining Diameter Measurements Used in Wire, Nail, and Bullet Sizes
science.howstuffworks.com/question260.htm
Bullet size is measured in calibers, but how are wires and nails measured? Learn about bullet size and caliber in this article.
1957-1958 Ford Ranchero and Courier
auto.howstuffworks.com/1957-1958-ford-ranchero-and-courier.htm
The 1957-1958 Ford Ranchero and Courier pickups were pioneering designs. See pictures and learn about the 1957-1958 Ford Ranchero and Courier.
North American B-25 Mitchell
science.howstuffworks.com/north-american-b-25-mitchell.htm
The North American B-25 Mitchell was efficient, easy to manufacture and repair, and able to do any job assigned to it. No other twin-engine bomber of World War II saw greater production. Learn the specifications and uses for this handsome bomber.
10 Most Profitable Drugs
health.howstuffworks.com/medicine/medication/10-most-profitable-drugs.htm
Prescription drugs for heart disease and high blood pressure are the highest sellers in the country. Read our list of the ten most profitable drugs.
1938 Cadillac Sixty-Special
auto.howstuffworks.com/1938-cadillac.htm
The 1938 Cadillac Sixty-Special was one of the great designs of Thirties and a milestone for Cadillac styling. Learn the history of the 1938 Cadillac.
Why do batteries seem to go dead and then come back to life if you let them rest?
electronics.howstuffworks.com/everyday-tech/question390.htm
Why do batteries seem to go dead and then come back to life if you let them rest? Learn about dead batteries and battery life.
Ornamental Grass
home.howstuffworks.com/ornamental-grass.htm
Ornamental grass is a type of annual grass. Learn about growing, propagating, and using ornamental grass at HowStuffWorks.