led zeppelin
- This is a preview of the essay.
To view the full text you must login!
Elaine Sharwood Year 9-Technology Assignment.
*The name of the device my report is on is The Telephone.
*The function of the telephone is to establish a way of communicating through wires, over long or short distances. Bell tried talking through the instrument to his assistant in the next room. He uttered the famous first words, "Come here I want to see you". The word telephone is made up of two parts. Tele-means far away and phone-means voiced sound. The telephone transmits sound electrically through wires. By speaking into the telephone handset it makes the diaphragm vibrate, which varies the electric current which makes the receivers diaphragm vibrate, and so the original sound is heard.
?..