Ineedhelpdesy186 Ineedhelpdesy186

13-10-2017
Biology

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Alexander graham bell studied the human ear and noticed how sounds were transmitted when a membrane (the eardrum) vibrated. he applied this knowledge to the development of the telephone, using a similar process of vibration of a membrane. which cognitive process did bell demonstrate?

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Kalahira Kalahira

23-10-2017

Alexander Graham Bell demonstrated the vibration of a membrane in the eardrum happens when sounds are transmitted. He demonstrated how one hears.

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