The Invisible Fire Extinguisher
The Invisible Fire Extinguisher

  You’ve heard of fighting fire with water, but did you know that gases also have the power to douse flames? A gas can smother a blaze by creating a barrier between burning fuel and nearby air. Removing any of the three requirements for fire stops the combustion reaction. Image credit: Ohio Northern University Fire

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Modeling Outer Space
Modeling Outer Space

 You’re carrying an awful lot of weight right now. It’s hard to tell, but every square inch of you is supporting fifteen pounds of atmospheric pressure! Multiply that by the number of square inches on the surface of a human body, and you’ll find you’re bearing a hefty load. Atmospheric pressure results from the

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Happy Anniversary, Humans in Space!
Happy Anniversary, Humans in Space!

November 2, 2000. It was a dark night on our planet. More than 200 miles above Earth’s surface, a Soyuz rocket began a slow dance in the bigger darkness of space. The docking sequence took three hours and forty minutes. At its end, the International Space Station welcomed the first of hundreds of human residents.

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DIY Water Bending
DIY Water Bending

Electricity is everywhere! That isn’t a joke. Electricity is simply the movement of electrons. Electrons are found in atoms which make up all of the molecules in our bodies, and don’t like to stand still. Electricity can be tricky to describe and understand, but most of us have felt it in some way. Have you

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Thomas Edison and the Bright Idea
Thomas Edison and the Bright Idea

 Thomas Edison famously invented the incandescent light bulb. These light bulbs are pretty simple things. They are really just a glass casing around a tiny metal resistor called the filament. As electricity runs through it, the filament heats up until it produces light. But how much does it have to heat up? It turns

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