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What is plasma and how do we use it? Why are plasma weapons so popular in science fiction? Are plasma weapons realistic? Source: howstuffworks.com
Years after the American Revolution, Britain and the United States were still locked in conflict. Listen in as Katie and Sarah explore the British bombardment of Baltimore in 1814 -- and how it inspired a lawyer named Francis Scott Key -- in this podcast.
If you fired a gun from a train moving at the speed of a bullet, what would happen? It depends on your frame of reference. Learn more about reference frames and physics in this episode of BrainStuff.