I'm Mark and I have done some more research on Granville Woods. He improved the telephone transmitter so you could send sounds bigger distances and the sounds came out louder and clearer. He also created a machine so a person could send a message by talking near telegraph keys and the other person could hear it like a telephone.
Hello Mark,
ReplyDeleteThis is Mr. Ronelus. Check your spelling on the word "Electrician"
it yaselie now i learn some thing new about granville wood
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ReplyDeleteThats A great project
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