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Top 5 Ancient Incan Inventions
science.howstuffworks.com/innovation/inventions/5-ancient-incan-inventions.htm
The Incan empire had a highly developed organizational system and a near limitless workforce that helped create a culture of wonders. So what are some of their inventions that we know about today?
How Ham Radio Works
electronics.howstuffworks.com/ham-radio.htm
Ham radio lets people talk across the globe, wirelessly and inexpensively. Learn how to get started in ham radio, from licenses to equipment, and check out two-way radio reviews.
How Carbon Capture Works
science.howstuffworks.com/environmental/green-science/carbon-capture.htm
We know that humans are largely responsible for fueling global warming with our carbon emissions. So what if we could seize all that carbon and squirrel it away in a safe place? Well, we can. It's just hard and really expensive.
A Tremendous Trove of Trivia Quiz
entertainment.howstuffworks.com/leisure/brain-games/trivia-quiz.htm
Think you know geography? Fancy yourself a history buff? Well then, mister or missus big shot, get comfy and let's test your knowledge of weird castles, crazy large numbers and embargoed snack foods.
Why Is the Goldendoodle So Popular, and Do They Make Good Pets?
animals.howstuffworks.com/pets/goldendoodle.htm
What do you get when you mix a golden retriever and a poodle? An oodleriever? Nope - you get a goldendoodle. They're great pets, but have a ton of rambunctious energy.
How Cameras Work
electronics.howstuffworks.com/camera.htm
Cameras and photography have transformed how we see the world. Learn about cameras, photography, how 35mm cameras work and about making a homemade camera.
How Urban Planning Works
science.howstuffworks.com/environmental/green-science/urban-planning.htm
Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.
7 Secret Caves We'd Love to See Inside
science.howstuffworks.com/environmental/earth/geology/secret-caves.htm
There are caves all over the world, but some are in places that are hard to explore - hidden by rocks, ruins or even under ice. We've found seven secret caves you probably never knew existed.
The Ultimate Rock Climbing Quiz
play.howstuffworks.com/quiz/rock-climbing-quiz
Rock climbing involves strength, control and finesse. There is an element of danger as well. If you are excited about scaling a vertical piece of stone, then take this quiz to learn more about rock climbing.
Smarter Than the Average American? Take This USA Quiz!
play.howstuffworks.com/quiz/smarter-than-the-average-american-take-this-usa-quiz
Hundreds of millions of people live in the USA, but very few of them know all that much about the country they live in. Do you fit in that category, or do you think you're smarter than the average American? Take our quiz on all things America to find out.