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How Rainbows Work

science.howstuffworks.com/nature/climate-weather/storms/rainbow.htm

Rainbows are one of nature's most beautiful effects. Have you ever wondered how the colors end up in seemingly perfect bands? And, what about double rainbows -- how does that happen? Find out how rain and sun can align to put color in the sky.

How Ramjets Work

science.howstuffworks.com/transport/engines-equipment/ramjet.htm

Imagine whipping through the sky at thousands of miles per hour. This special type of jet engine can do exactly that.

How Real Transformers Work

science.howstuffworks.com/real-transformer.htm

Transformers exist in real life, but they don't quite resemble the robots from the movie. Learn about real transformers and how these robots are used.

How Recycling Works

science.howstuffworks.com/environmental/green-science/recycling.htm

Recycling involves taking something useful and turning it into something new instead of throwing it away. Learn about recycling and the many types of recycling.

How Relief Wells Work

science.howstuffworks.com/environmental/green-science/relief-well.htm

Relief wells are used to prevent and stop dangerous oil flows. Learn about relief wells and how relief wells are drilled.

How Removing Public Monuments Works

science.howstuffworks.com/engineering/structural/removing-public-monuments.htm

Controversy surrounds the removal of public monuments honoring the U.S. Confederacy. But who or what determines which monuments go up or come down?

How Reverse Osmosis Works

science.howstuffworks.com/reverse-osmosis.htm

How does reverse osmosis work? Find out how a semipermeable membrane can act as a filter for some particles while letting others pass through.

How Reverse Psychology Works

science.howstuffworks.com/life/inside-the-mind/human-brain/reverse-psychology.htm

Ever tried to get your child, spouse or friend to do something by telling them to do the opposite? That's reverse psychology. But how often does it work?

How Revolvers Work

science.howstuffworks.com/revolver.htm

The revolver turned shooting a round into a one-step process, forever changing the face of crime, law enforcement and self-defense. Find out what goes on inside a revolver.

How Robot Armies Will Work

science.howstuffworks.com/robot-armies.htm

Robot armies could soon account for up to one third of all vehicles currently in service. Learn about robot armies and robot army development.

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