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10 Aviation Innovations We'd Be Stuck on the Ground Without
science.howstuffworks.com/transport/flight/modern/10-aviation-innovations.htm
In the world of flight, it's a fine line between flying high and falling fast. Can you name 10 of the innovations that keep planes and their passengers airborne?
Top 5 Gadgets on the High-tech Soldier
science.howstuffworks.com/5-gadgets-high-tech-soldier.htm
Soldiers rely on all kinds of high-tech gadgets to help them get their jobs done. Some of them are specially designed for military use, while others are gizmos you might have in your pocket right now.
How the Crusades Worked
history.howstuffworks.com/european-history/crusades.htm
The Crusades were religious wars. Find out what triggered the First Crusade and how the pope persuaded people to go on a crusade.
How Sustainable Forestry Works
science.howstuffworks.com/environmental/green-science/sustainable-forestry.htm
How does sustainable forestry work? Learn about green technologies and innovations in the field of sustainable forestry.
What will speed mean in the future?
auto.howstuffworks.com/under-the-hood/trends-innovations/speed-in-the-future.htm
Speed in the future will be realized by a varied assortment of fuels and power sources. Read about speed and the future and how it's being tested today in Utah.
Could Planting 1 Trillion Trees Counteract Climate Change?
science.howstuffworks.com/environmental/conservation/issues/planting-trillion-trees.htm
Many scientists say that the response to climate change will require planting new trees. A whole lot of them.
The Rise and Fall of the Oregon Trail
history.howstuffworks.com/american-history/oregon-trail.htm
Hundreds of thousands of emigrants traveled the 2,170-mile Oregon Trail. HowStuffWorks looks at what they endured in their search of a better life.
How Will You Do on This Tough, Irritating Geography Quiz?
play.howstuffworks.com/quiz/the-hardest-most-irritating-geography-quiz-youll-take-today
Our world is full of fantastic and interesting mountains, lakes, cities, and other geographical landmarks. Grab your passport and see if you can master this tough and strange geography quiz!
What is a levee?
science.howstuffworks.com/engineering/structural/levee.htm
Whether they make you think of Hurricane Katrina or Led Zeppelin, levees are a critical safety feature for low-lying areas located near water. Why do they break?
Telling One Green-White-Orange Flag From Another
people.howstuffworks.com/culture-traditions/national-traditions/green-white-orange-flag.htm
Flags are more than just colors and shapes; they're symbols of identity, pride and history. Four countries proudly fly a green, white, and orange flag — and each draws that color scheme from its rich history and distinctive symbolism as nations.