While I was in New York last May for Economics Challenge nationals, there was a lot of hype over the about-to-be-crowned then nominee Barack Obama. While we were walking around in the city, we noticed that many buildings had electronic newsreels snaking around the ground floor. The pictured reel features an "Angry Obama." Like almost everything in New York City, this reel is powered by electricity. Electricity is created by a flow of electrons carrying electric energy. In order for electricity to power devices, there needs to be circuit connecting the device to a battery or some other electron generator. The circuit should be made of conductive material and must be continuous in order to allow the electrons to travel through the device. (Photo Credit: Leslie Kawano)
1 comment:
i like that you're thinking about the good physics, even on your trip! What is an "angry Obama?"
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