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5 Farming Technologies That Changed the World
science.howstuffworks.com/environmental/green-science/5-farming-technologies-changed-world.htm
Farming technologies have allowed the world to be fed, even though most people no longer farm. Only 2 percent of Americans are farmers, versus 90 percent in the 1700s. Which tools and technologies have had the most impact on farming and why?
How Google Earth Works
computer.howstuffworks.com/internet/basics/google-earth.htm
Google Earth is a popular online mapping program that is free to download. Find out how Google Earth works and learn about Google Earth's basic functions.
What are the pros and cons of hydrogen energy?
science.howstuffworks.com/environmental/green-science/pros-and-cons-of-hydrogen-energy.htm
What are the pros and cons of hydrogen energy? Learn about this innovative green technology and the pros and cons of hydrogen energy.
What's more important, water on the moon or on Mars?
science.howstuffworks.com/water-moon-mars.htm
The existence of water on the moon and Mars is explained in this article. Learn about water on the moon and Mars.
10 Failed Google Projects
computer.howstuffworks.com/10-failed-google-projects.htm
Google projects have often been huge successes -- except for these blunders. See 10 failed Google projects to learn more.
How Coal Stoves Work
home.howstuffworks.com/home-improvement/heating-and-cooling/coal-stoves.htm
Coal stoves are very efficient when they are maintained properly. Learn more about how coal stoves work at HowStuffWorks.
Types of Wrenches
home.howstuffworks.com/wrench.htm
A wrench is a hand tool used to turn a bolt head or nut. Learn about wrenches, and choose the right one based on the size and shape of the fastener.
11 Pretty Awesome Facts About the Pacific Ocean
science.howstuffworks.com/environmental/earth/oceanography/pacific-ocean.htm
It covers more than 30 percent of the planet, and is home to all kinds of sea creatures. What other facts make the Pacific Ocean so amazing?
Why Treasure Hunters Are Still Searching for the Nazi Gold Train
history.howstuffworks.com/history-vs-myth/treasure-hunters-still-searching-for-nazi-gold-train.htm
No one has found the Nazi Gold Train, but that hasn't stopped people from trying. HowStuffWorks looks at the latest effort to locate the fabled train.
7 Dazzling Details About the Louvre Pyramid
science.howstuffworks.com/engineering/architecture/louvre-pyramid.htm
The Louvre Pyramid was first received by the world in 1989 as an architectural joke, but 30 years later it's considered one of the world's most iconic design masterpieces.