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How the Panama Canal Makes Water Flow Uphill
science.howstuffworks.com/engineering/structural/panama-canal.htm
The Panama Canal has been one of the world's biggest engineering feats since it was built nearly by hand in the 1900s.
How Agent Orange Worked
science.howstuffworks.com/agent-orange.htm
UAT 0- Agent Orange was a potent herbicide and defoliant used in large quantities during the Vietnam War. Learn about Agent Orange and its terrible legacy.
Do you need a brake puller?
auto.howstuffworks.com/auto-parts/brakes/brake-tests/do-you-need-a-brake-puller.htm
Do you need a brake puller? Visit HowStuffWorks to find out if you need a brake puller.
The D-Day Invasion: January 1944-July 1944
history.howstuffworks.com/world-war-ii/d-day-invasion.htm
This World War II timeline highlights key events from January 1944 through July 1944. Follow the events of World War II, including the D-Day invasion.
How to Make Money as a Kid
money.howstuffworks.com/personal-finance/budgeting/make-money-kid.htm
How can a kid make money today? Learn how to make money as a kid at HowStuffWorks.
10 Second Career Ideas for Retirees
money.howstuffworks.com/second-career-ideas/10-second-career-ideas-for-retirees.htm
What are some top second career ideas for retirees? Learn about Top 10 Second Career Ideas for Retirees at HowStuffWorks.
Modern Decline of Railroads
history.howstuffworks.com/american-history/decline-of-railroads.htm
The decline of railroads came about during the 1960s and 1970s as the automobile dominated transportation. Read about the decline of railroads.
London Bridge Has Never Fallen Down, But It Keeps Getting Rebuilt
science.howstuffworks.com/engineering/structural/london-bridge.htm
Despite what the nursery rhyme says, London Bridge is not falling down - and never really has. But the bridge that spans the Thames has been rebuilt again and again for two millennia.
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 Solar Water Heaters Work
science.howstuffworks.com/environmental/green-tech/sustainable/solar-water-heater.htm
Solar water heaters could help cut your utility bills. Visit HowStuffWorks to learn about solar water heaters.