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How Apache Helicopters Work
science.howstuffworks.com/apache-helicopter.htm
Apache helicopters are designed to survive heavy attack and inflict massive damage. Learn about the flight, weapons and armor systems of Apache helicopters.
Understanding USB Types and the Flexible USB System
computer.howstuffworks.com/usb.htm
You can find Universal Serial Bus connectors on just about every PC made today. But when it was introduced, USB was leaps and bounds ahead of the technologies it replaced. What makes this standard so useful?
How Computer Keyboards Work
computer.howstuffworks.com/keyboard.htm
You use your keyboard every day, but did you know that even this simple device contains its own microprocessor? Learn why!
How Muscles Work
health.howstuffworks.com/human-body/systems/musculoskeletal/muscle.htm
Muscles are your body's engine, and you couldn't do anything without them. Learn about skeletal muscle, smooth muscle, and cardiac muscle and how muscle contraction works.
Surrogacy Overview
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/surrogacy.htm
Surrogacy involves a woman carrying a child for others who cannot conceive. Learn about the types of surrogacy in this article.
Understanding Pregnancy Symptoms
Pregnancy symptoms include changes to your reproductive and digestive system, your blood and metabolism. Read about understanding pregnancy symptoms.
How Spy Gadgets Work
entertainment.howstuffworks.com/spy-gadget.htm
Spy films, like those starring James Bond, are full of special gadgets like lipstick guns, hubcap lasers, turbo hovercraft and rocket-launching radios. But which of these amazing tools actually have real-life counterparts, and which ones only exist in the realm of fictional spies like 007? Find out.
How Ghosts Work
science.howstuffworks.com/science-vs-myth/afterlife/ghost.htm
Ghosts are the spirits of dead people that have either returned from the afterlife, or not moved on to it. Learn about ghosts and explanations for ghosts.
How Cave Biology Works
science.howstuffworks.com/life/biology-fields/cave-biology.htm
Cave biology is the study of the animal specimens that live and evolve in caves. Learn about cave biology and cave animals in this article.
How did Lake Nyos suddenly kill 1,700 people?
science.howstuffworks.com/environmental/earth/geophysics/lake-nyos.htm
One evening, people heard their local lake rumbling. A day and a half later, 1,700 people were dead. What happened on that fateful night?