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What Is a Postal Code? A Brief History of Zip Codes
people.howstuffworks.com/what-is-a-postal-code.htm
You use it all the time, but what is a postal code, really? In short, a zip code expedites mail delivery and helps prevent fraudulent activity on credit cards.
How Trademarks Work
money.howstuffworks.com/trademark.htm
A trademark is concerned with a company's need to identify its goods or services among its customers and potential customers. Learn how they work.
Uncle Sam: The Man, the Myth, the Legend
people.howstuffworks.com/uncle-sam-man-myth-legend.htm
He wants YOU, but who the heck was he?
How Esthetics School Works
health.howstuffworks.com/skin-care/beauty/skin-treatments/esthetics-school.htm
In esthetics school, students learn much more than mud masks and pimple popping. Learn how esthetics school works at HowStuffWorks.
Can You Guess Which of These Two American Cities Is Furthest North?
play.howstuffworks.com/quiz/can-you-guess-which-of-these-two-american-cities-is-furthest-north
From Florida to Maine or California to Alaska, the United States is a vast country with plenty of interesting cities to explore. But do you know which cities are located north or south of others? Take a trip through this quiz to find out!
How Artificial Geothermal Energy Works
Artificial geothermal energy is made by adding water to naturally hot rocks. Learn about artificial geothermal energy.
How Alternative Fuel Filling Stations Work
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/alternative-fuel-filling-stations.htm
Alternative fuel filling stations are growing in popularity. Learn about how alternative fuel filling stations work at HowStuffWorks.
Which Female Celebrity Is Your Soulmate?
play.howstuffworks.com/quiz/which-female-celebrity-is-your-soulmate
We all follow the lives of our favorite celebs, but what about celeb soulmates? Take this quiz to find out which female celebrity is your one-and-only!
How Drought Works
science.howstuffworks.com/nature/natural-disasters/drought.htm
What happens when the rains cease and water levels dry up precipitously? Everything from abundant grasses to apex predators suffers the consequences.
Can You Answer These $100 "Who Wants to Be a Millionaire" Questions?
play.howstuffworks.com/quiz/can-you-answer-these-100-who-wants-to-be-a-millionaire-questions
Have you watched "Who Wants to Be a Millionaire" and thought, "Those $100 questions are easy?" Prove it! Test your general knowledge of basic facts with this quiz!