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Who Built These Mysterious Concrete Arrows?
history.howstuffworks.com/american-history/who-built-these-mysterious-concrete-arrows.htm
Giant arrows guided American airmail pilots on nighttime routes up until the 1940s. HowStuffWorks takes a look.
5 of History's Most Cunning Con Artists
history.howstuffworks.com/history-vs-myth/con-artists.htm
You think you'd never fall for a conman's (or conwoman's) shtick. But so did many of the victims of these five con artists. What scams did they pull off?
Why North Sentinel Island Is Off-limits to All Visitors
history.howstuffworks.com/world-history/north-sentinel-island.htm
For centuries, colonizers, missionaries and anthropologists have attempted to make contact with the residents of North Sentinel Island. But outsiders have learned the hard way that, even today, the Sentinelese just want to be left alone.
Tsar Bomba: The Most Powerful Nuclear Weapon Ever Built
science.howstuffworks.com/tsar-bomba.htm
In 1961, the Soviet Union detonated the Tsar Bomba, still the biggest, most powerful nuclear bomb ever built. One of the cameramen who recorded the event said it sounded "as if the Earth has been killed."
What Does 2.4 Liter Mean in the Context of an Engine?
auto.howstuffworks.com/question685.htm
This may sound silly, but on the back of my car there is a little sign that says "2.4 liter," and every morning I see that and wonder "What does that mean?" So what does it mean?
1932 Austin-Swallow
auto.howstuffworks.com/1932-austin-swallow.htm
The 1932 Austin-Swallow classic car was born out of a collaboration between two rival British automakers. See how they came together to create a gem.
1930 Chrysler 70 Roadster
auto.howstuffworks.com/1930-chrysler-70-roadster.htm
The 1930 Chrysler 70 Roadster was the result of an instinct that saved the Chrysler Company. Learn more about the dreamy 1930 Chrysler 70 Roadster.
How Much Does It Cost to Charge an Electric Car?
auto.howstuffworks.com/how-much-does-it-cost-to-charge-an-electric-car.htm
Electric cars that run only on power stored in their batteries -- no gasoline required -- are going to hit the mass market in the United States over the next few years, thanks to the likes of Ford, Nissan, Mitsubishi, Mini and a slew of others with plans on the drawing board. Learn more about charging your electric car.
How far underground are oil deposits?
science.howstuffworks.com/environmental/energy/underground-oil-deposits.htm
The U.S. consumes 19.1 million barrels of petroleum each day -- almost half of it in the form of gasoline, according to the U.S. Energy Information Administration.
What's the cheapest new energy alternative?
science.howstuffworks.com/environmental/energy/cheap-new-energy-alternative.htm
America, and really the entire world as a whole, runs on fossil fuels like gasoline and coal. But it's no secret that these resources can't last forever.