Building a Telegraph : About Telegraphs & Morse Code
The telegraph was first used to carry messages across a long distance. Learn about telegraphs and Morse code with information from a science teacher in this free video on building a telegraph.Expert: Fiona Finke Bio: Fiona Finke is a science teacher who likes to explain how a better understanding of the universe will help us in our daily lives. Filmmaker: Nili Nathan
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