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How Diesel Locomotives Work
science.howstuffworks.com/transport/engines-equipment/diesel-locomotive.htm
Diesel locomotives are some of the coolest modes of transport out there. Giant machines like these are just full of technological treats. Explore a hybrid-diesel locomotive - from engine to engineer controls.
How Airport Security Works
science.howstuffworks.com/transport/flight/modern/airport-security.htm
According to the Department of Homeland Security 730 million people travel on passenger jets every year. Are these folks safe? Find out how high-tech solutions are being used to make flying as safe as possible.
How Reverse Osmosis Works
science.howstuffworks.com/reverse-osmosis.htm
How does reverse osmosis work? Find out how a semipermeable membrane can act as a filter for some particles while letting others pass through.
10 Amazing Green Cities
science.howstuffworks.com/environmental/green-science/five-amazing-green-cities.htm
Sure, the Emerald City looked green, but you won't need green-tinted glasses to see how environmentally friendly the cities on this list are. What makes a city amazingly green?
10 of the Bloodiest Battles of World War II
history.howstuffworks.com/historical-events/5-bloodiest-world-war-ii-battles.htm
The war that began with German dictator Adolf Hitler's rise to power led to more than 50 million combatant and civilian deaths. Which 10 battles during the World War II were the costliest?
How Artificial Geothermal Energy Works
Artificial geothermal energy is made by adding water to naturally hot rocks. Learn about artificial geothermal energy.
How Labor Unions Work
money.howstuffworks.com/labor-union.htm
Labor unions lobby for better working conditions, hours, pay and benefits. Learn about labor unions and the role they play in securing workers' rights.
How Greenhouses Work
home.howstuffworks.com/lawn-garden/professional-landscaping/greenhouse.htm
Reproducing plants out of season gave man a measure of control over nature. The allure of it sparked the imagination and inspired new methods for building structures devoted to plants. So how do greenhouses work?
1956-1961 Studebaker Hawk
auto.howstuffworks.com/1956-1961-studebaker-hawk.htm
The Studebaker Hawk was a sporty car that drew mixed reviews from the public. See pictures and learn the history of the 1956-1961 Studebaker Hawk.
10 Political Scandals
people.howstuffworks.com/6-political-scandals.htm
Politicians have given the world plenty to talk about over the years. See our list of 10 political scandals, including Watergate.