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How the Amphicar Worked
auto.howstuffworks.com/1961-1968-Amphicar.htm
The 1961-1968 Amphicar was an amphibious car introduced at the 1959 Geneva Salon. Read about this fun and famous collectible invented by Hans Trippel.
How M1 Tanks Work
science.howstuffworks.com/m1-tank.htm
M1 tanks are the world's most technologically advanced tanks. Find out about M1 tanks, the type of weapons M1 tanks use and how an M1 tank keeps its crew safe.
What Makes a Protest Effective? 3 Movements That Got Results
people.howstuffworks.com/effective-protest.htm
Is it millions of marchers with clever signs and slogans, or does effective protest take more than just raised voices and collective outrage?
What Is the Arctic Circle? 9 Stone-cold Facts About the Region
science.howstuffworks.com/environmental/earth/geophysics/arctic-circle.htm
The Arctic Circle is a region marked by frigid temperatures, strange sunlight and glaciers galore. And for hundreds of thousands of people, it's also home sweet home.
Cromwell A-27M Infantry Tank
science.howstuffworks.com/cromwell-a-27m-infantry-tank.htm
The Cromwell A-27M Infantry Tank was fast and agile but still outmatched by opposition tanks. Learn about Britain's Cromwell A-27M Infantry Tank.
How Does the U.S. Government Declassify Top Secret Documents?
people.howstuffworks.com/declassify-documents.htm
The FBI's seizure of top secret files from Donald Trump's home shined a spotlight on the declassification system. How does the process work?
Has the free enterprise system prevailed?
money.howstuffworks.com/free-enterprise-system.htm
The free enterprise system offers unfettered industry powered by profit-focused individuals. Learn about the free enterprise system in this article.
The Lost Art of True Damascus Steel
science.howstuffworks.com/damascus-steel.htm
All steel is not the same, and Damascus steel has a reputation for being the best. But is today's Damascus steel the same as that forged centuries ago?
How Police Dogs Work
people.howstuffworks.com/police-dog.htm
K-9 cops can sniff out drugs, bombs and suspects that would leave human cops ransacking entire cities. Learn all about the K-9 police force.
How Code Breakers Work
science.howstuffworks.com/code-breaker.htm
Code breakers are people who use logic and intuition in order to uncover secret information. Learn more about code breakers and how code breakers work.