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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?
What does a V-chip do and how does it work?
electronics.howstuffworks.com/question167.htm
Do you know what the v-chip does in your TV? Learn how a v-chip detects TV ratings and gives parents the ability to control viewing of violent content.
How do they superimpose the first-down line onto the field on televised football games?
entertainment.howstuffworks.com/question225.htm
When a football game is on television, how do the broadcast stations superimpose the first-down line across the TV screen without it appearing on the uniforms of the players?
What is a smart card?
computer.howstuffworks.com/question332.htm
What is a "smart card"? Learn how an embedded microprocessor in a smart card can authenticate your computer usage and data. Learn about smart cards.
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.
The ZZ Top Eliminator: Profile of a Hot Rod
auto.howstuffworks.com/zz-top-eliminator-hot-rod.htm
Billy F. Gibbons had a 1933 Ford restored into what became known as the Eliminator coupe. Learn more about the ZZ Top Eliminator and other hot rods.
1993 Harley-Davidson FXDWG Wide Glide
auto.howstuffworks.com/1993-harley-davidson-fxdwg-wide-glide.htm
The 1993 Harley-Davidson FXDWG Wide Glide motorcycle was a 90th anniversary Harley. See pictures and learn about the Harley-Davidson FXDWG Wide Glide.
Paintings by Frederic Bazille
entertainment.howstuffworks.com/arts/artwork/paintings-by-frederic-bazille.htm
French Impressionist Frederic Bazille was part of the group that formed around the great Edouard Manet. See some of his works and learn about his art.
Sept. 10 1953: Swanson Sells First TV dinner
people.howstuffworks.com/swanson-dinner.htm
Swanson TV dinners were developed in 1953 when families were watching shows such as "I Love Lucy". Read more about the history of Swanson TV dinners.