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How and why does the heart pump blood to itself?

health.howstuffworks.com/human-body/systems/circulatory/heart-pump-blood.htm

Have you ever stopped to wonder how does the heart pump blood to itself and the rest of your body? Learn the answer to how does the heart pump blood.

Fifth Disease Overview

health.howstuffworks.com/skin-care/problems/baby/fifth-disease.htm

Fifth disease is a common baby skin problem. Learn more about how fifth disease works at HowStuffWorks.

How Commercial Jingles Work

money.howstuffworks.com/commercial-jingle.htm

Commercial jingles are written about a product and, if done correctly, can stick in your head for days. Learn about the use of commercial jingles.

How Fiber Optics Work

computer.howstuffworks.com/fiber-optic.htm

Fiber optics is a really cool technology that enables the long-distance transmission of data in light signals, and is used in many more ways than you think.

Can You Identify These U.S. Presidents If We Give Them Fake Mustaches?

play.howstuffworks.com/quiz/can-you-identify-these-us-presidents-if-we-give-them-fake-mustaches

There's a reason the greatest masters of disguise used fake mustaches to hide their identity. Now, we've taken their craft and applied it to these U.S. presidents. Will you know who they are?

Hypersonic Speed Explained: How Hypersonic Planes Work

science.howstuffworks.com/transport/flight/modern/hypersonic-plane.htm

Higher, farther, faster: NASA's X-43A plane is destined to set new speed records. What sets the X-43A apart from other rocket-powered aircraft is that it is powered by a scramjet engine. Learn all about it.

Will I get shocked if I drive an electric car through a big puddle?

auto.howstuffworks.com/fuel-efficiency/vehicles/electric-car-shock.htm

If you drive an electric vehicle, should you be concerned with electric vehicle safety? Find out why it's important to understand electric vehicle safety.

How is L.A. like ancient Rome?

science.howstuffworks.com/environmental/green-science/la-ancient-rome.htm

Aqueducts are one thing held in common by both L.A. and Ancient Rome. Learn about the L.A. aqueducts and how they harmed the Owens Valley.

Can manatees see underwater?

animals.howstuffworks.com/mammals/manatees-see-underwater.htm

Manatees see poorly underwater, with the aid of two very small eyeballs. Learn how manatees see underwater and navigate with such poor vision.

How WiFi Detectors Work

electronics.howstuffworks.com/gadgets/travel/wifi-detectors.htm

WiFi detectors are useful travel gadgets. Learn more about WiFi detectors at HowStuffWorks.

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