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How Ice Sculpting Works

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Ice sculptures can range from small tabletop pieces to entire buildings. In this fundamentally temporary medium, art and engineering combine to form sparkling, breathtaking effects.

How Icebergs Work

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Icebergs are a lot more than just giant chunks of floating ice. Learn about icebergs and find out how icebergs can affect the ocean around them.

How Impossible Colors (Like Stygian Blue) Work

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What if there are colors within the visible spectrum that our brains can't perceive? In fact, there are. They're called impossible colors. But some researchers think they've discovered a way to see the impossible.

How Impression Evidence Works

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Impression evidence is an important and sometimes overlooked aspect of the criminal investigation process. Find out about impression evidence here.

How Instant Film Works

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Before digital cameras, you needed instant film to get instant pictures. With instant-film photography, you can watch the image slowly come together in a matter of minutes. While it seems like magic, the process relies on elements of science. Find ou

How Iron and Steel Work

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The refining of iron ore is one of the most historically significant achievements of all time. Find out how iron gets turned into steel and what it's used for.

How Is Barometric Pressure Measured and Why?

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Weather forecasters can tell what the weather will be by reading the barometric pressure, but how does it work?

How Is Helium Made?

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Helium is the second lightest element on the Periodic Table. How is helium created?

How Is the National Guard Different from the U.S. Army?

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The National Guard serves many purposes and does many jobs for the United States. Learn what the National Guard is and how it differs from the Army.

How Isaac Newton Worked

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Isaac Newton is one of the most important contributors to the field of science. Learn about the life of Isaac Newton.

1791 - 1800