How Many Stars are Out There?
How Many Stars are Out There?

The numbers used in Astronomy are truly staggering.  For starters, the Earth is about 25,000 miles around. The nearest star to us is–obviously–the sun, which is 93 million miles away. To travel that distance, you would have to circle the Earth nearly 4000 times! The larger the numbers get, the harder it gets to understand

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Lasers and Fiber Optics
Lasers and Fiber Optics

Lasers are awesome! We use them for medicine, science, and even entertainment.  But one of the most practical uses for a laser is the transmission of information.  The information can come in a variety of different forms, from music to television to internet.  This idea of information transfer just using light shouldn’t come as much

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CO2 Fire Extinguisher
CO2 Fire Extinguisher

“Fire… begone!” These words aren’t magic, they’re science! We’ve harnessed the unique properties of a certain gas, carbon dioxide, to make our own version of a fire extinguisher. To understand how this works, we need to start with an understanding of fire. Fire requires two things in order to continue burning: fuel and oxygen. Without

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A Scientist’s April Fools
A Scientist’s April Fools

 Warning: Don’t do this at home!  When a scientist decides to play an April Fools prank on someone, it gets pretty serious.  We pull out all the stops.  One experiment that is guaranteed to both terrify and delight is the classic alcohol money burn. The experiment is pretty simple.  Mix some rubbing alcohol and

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