by Shawn B
(Queens NY)
Early model from Samuel Morse
This was something we had to be creative about in school. I was in Junior High and had to build a telegraph. We created it out of wood, inserted a nail, cut a tin foil and placed it right above the nail; there was wire wrapped around the nail attached to a battery and a light bulb. Every time you touched the piece of tin to the nail the bulb lit up.
Comments for The Telegraph
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Are you concerned about Air Pollution in your area?
Maybe modelling air pollution will get you the answers you need for this problem.
That's what I do full-time. Try it.
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