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How Singing Fish Work
entertainment.howstuffworks.com/singing-fish.htm
Singing fish are silly, but there is an amazing amount of technology inside them -- they are really simple robots! Find out how singing fish work.
What's the connection between compression ratio and fuel economy?
auto.howstuffworks.com/compression-ratio-fuel-economy.htm
What's the connection between compression ratio and fuel economy? Find out how an engine's compression ratio affects fuel economy.
Do HHO systems actually work?
auto.howstuffworks.com/hho-system.htm
Do HHO systems actually work? Read about HHO fuel systems and whether or not they're a legitimate alternative fuel or just science fiction.
How do I know when my tires need to be rotated?
auto.howstuffworks.com/under-the-hood/diagnosing-car-problems/body/tires-rotated.htm
How do I know when my tires need to be rotated? Learn about when your tires should be rotated at HowStuffWorks.
Do you need a secondary air injection system?
auto.howstuffworks.com/secondary-air-injection-system.htm
Do you need a secondary air injection system? Read about the possible advantages of a secondary air injection system for your car.
Rod and Reel Fishing Quiz
play.howstuffworks.com/quiz/rod-reel-fishing-quiz
Pull up your waders, set your drag, and see if you can land a great score on this quiz.
When Sound Makes You Sick
health.howstuffworks.com/human-body/systems/ear/when-sound-makes-you-sick.htm
There's growing evidence that sound can cause a range of health problems. HowStuffWorks looks at the science.
Why Mockingbirds Mock
animals.howstuffworks.com/birds/why-mockingbirds-mock.htm
What benefit does one bird get from copying another bird's calls?
Do Fish Get Thirsty?
animals.howstuffworks.com/fish/fish-get-thirsty.htm
They're swimming in water all day so how could they ever get thirsty? The answer might surprise you.
How Are Airplane Cabins Pressurized?
science.howstuffworks.com/transport/flight/modern/airplane-cabin-pressure.htm
Without the system that pumps unused air from an aircraft's engines into the cabin, passengers and crew would be unable to breathe at 30,000 feet. But how does that system work?