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How to Maintain an Air Conditioner
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Central air and window conditioners require routine maintenance to keep them operating at peak efficiency. It's important to know how a system's main parts function. Learn to troubleshoot a central air and room conditioner system.
Can You Answer These Progressively Harder Engine Questions?
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Think you can get a perfect score on this engine quiz? You might after the first few questions, but as this quiz goes on, you'll find yourself put to the test - literally! This quiz goes from the bunny slope to the black diamond ski run.
How Wires, Fuses, and Connectors Work
auto.howstuffworks.com/wfc.htm
Wires, fuses and connectors are the kind of thing in your car that you never think about, but they are essential. They're not just there to keep your radio and lights working! Learn why they are so important.
The Oil Drilling Process Explained
science.howstuffworks.com/environmental/energy/oil-drilling-process.htm
Remember those orange juice commercials? The ones where people tried to poke a rolling orange with a straw?
How Self-inflating Tires Work
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Self-inflating tires can change their PSI to adjust to road conditions. Learn about self-inflating tire systems and how they're being adapted for consumers.
Bathroom Smell Like Sewage? Possible Causes and Fixes
It's not uncommon for your bathroom to occasionally have bad odors. But when you smell sewage, that's usually not a good sign.
Are Polar Bears Endangered?
science.howstuffworks.com/environmental/green-science/polar-bear-global-warming.htm
Polar bears and global warming are getting attention from conservationists and the general public. See why polar bears are threatened by global warming.
How Rotary Engines Work
auto.howstuffworks.com/rotary-engine.htm
A rotary engine works completely differently than the conventional piston engine. Learn what makes a rotary engine unique among engines.
How do you clean the evaporator coils on a central AC unit?
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How do you clean the evaporator coils on a central AC unit? Learn how to clean the evaporator coils on a central AC unit in this article.
The Plumbing Tools Identification Quiz
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Life without properly functioning indoor plumbing would certainly be the pits! It's a good thing we have plumbers and their specialized tools to call on. Do you think you can identify each of these plumbing tools from just one image or will you get washed away by this quiz? Get started and find out!