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8 Most Densely Populated Cities in the World
history.howstuffworks.com/world-history/most-densely-populated-city.htm
Statistically, over half of the people reading this article live in a city, with a higher population density than rural or suburban areas. For instance, New York City has nearly 27,000 people crammed into each square mile (2.6 square km) of land.
Can You Identify All These Bands From the British Invasion?
play.howstuffworks.com/quiz/can-you-identify-all-these-bands-from-the-british-invasion
The British Invasion was a major turning point in the history of music, culture, the music publishing industry and the post-WW2 global mono-culture, but how well do you know it? Could you recognize British Invasion bands on sight? Take this quiz to test your knowledge!
Top 5 Bluetooth Gadgets
electronics.howstuffworks.com/bluetooth-gadgets.htm
There are a number of Bluetooth gadget and gizmos. Find out about the top 5 Bluetooth gadgets to make your communication easier.
It Takes 9,000 Steps to Reach China's Fanjingshan Temple
people.howstuffworks.com/fanjingshan.htm
Located on Mount Fanjing in China, the Temple of the Buddha and Maitreya Temple sit impossibly atop a spindly rock formation, more than 7,600 feet (2,336 meters) above sea level.
How Calculators Work
electronics.howstuffworks.com/gadgets/other-gadgets/calculator.htm
Calculators may show up anywhere in our lives that numbers do -- from calculus class to restaurants. See how calculators work.
How Many Working Days Are in a Year?
money.howstuffworks.com/how-many-working-days-in-a-year.htm
Whether you are an employee or a small business owner, it can be helpful to calculate the number of working days in a year. Most people are familiar with the total number of days in a year: 365. But how many of those days are working days?
What Is a Perfect Square?
science.howstuffworks.com/math-concepts/what-is-perfect-square.htm
A perfect square is a number, but it can also be explained using an actual square.
Does More Blades Mean a Better Razor?
health.howstuffworks.com/skin-care/beauty/hair-removal/how-many-blades.htm
How many blades are on your razor? Does it matter? Learn whether how many blades your razor features is important or not.
What's the Hardest Math Problem in the World? Try These 9
science.howstuffworks.com/math-concepts/hardest-math-problem-in-the-world.htm
Mathematics is filled with complex challenges, but the hardest math problem in the world isn’t just a difficult question on a school test: It’s one that defies centuries of logic, calculation, and creativity.
What do the big diamond-shaped signs with red yellow and blue diamonds mean?
people.howstuffworks.com/question327.htm
Many buildings in my area have a big red, yellow and blue diamond-shaped sign with numbers on it. Do you know what this sign means?