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Why Do Some U.S. Bills Have a Star at the End of the Serial Number?
Most U.S. currency contains a serial number that ends with a letter, but some end or begin with a star instead. What does the letter stand for? What is the significance of the star?
What's the Meaning of 420 and Why Is 4/20 Weed Day?
people.howstuffworks.com/culture-traditions/holidays-other/420-stoners-holiday.htm
Nope, it's not the police code for marijuana possession. It has a much cooler origin story. Find out about the meaning of 420.
How Squatting Works
money.howstuffworks.com/squatting.htm
Squatting is setting up camp on land or moving into an unused building. Learn what laws protect squatters and how squatting affects culture.
How Diesel-fueled Hybrids Work
auto.howstuffworks.com/diesel-hybrid.htm
New diesel engines are clean, powerful and reliable, so wouldn't it be great if an automaker built a diesel hybrid? Learn about diesel hybrid vehicles here.
How Interest Rates Work
money.howstuffworks.com/interest-rate.htm
Interest rates are basically the price we pay for living in a world that relies heavily on credit and debt. Find out how interest rates work in this article.
How Sports Betting Works
entertainment.howstuffworks.com/sports-betting.htm
sports betting, betting on sports
How the Minerva Project Works
people.howstuffworks.com/minerva-project.htm
What's the next revolution in college education? Find out how the Minerva Project works at HowStuffWorks.
How Amazon Same-day Delivery Works
money.howstuffworks.com/amazon-same-day-delivery.htm
The Amazon same-day delivery service aims to get your package to you in no time at all. Learn how Amazon same-day delivery works.
Bridge Pictures
science.howstuffworks.com/engineering/structural/bridge-pictures.htm
Bridge Pictures give you a glimpse of some of the most amazing engineering accomplishments. Check out this collection of bridge pictures.
How Many Cities Have a Ban on Plastic Bags?
people.howstuffworks.com/how-many-cities-have-a-ban-on-plastic-bags.htm
It's probably more than you think. Learn more about how many cities have a ban on plastic bags.