By A.K. Chakraborty, S.C. Bhattacharya
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Bell was experimenting with the transmitter of his speech machine in one room and Watson was in the other room, sitting in front of a receiver. The door between the two rooms was shut. On Bell's table lay a voltaic battery. In a careless moment, 52 Bell's magnetic telephone. the battery turned over and toppled from the table. Some acid spilt on the floor and stained Bell's clothes. "Mr. Watson, come here at once," Bell shouted. As the door between the rooms was closed, Watson could not have heard Bell's shout directly.
But the road to success was not easy. The first instrument he devised did not work. He went on making changes and alterations in his apparatus till at last he realized his dream. He was able to send signals through electric wire from one end of his laboratory to the other. For a public demonstration of his telegraphy, he needed money, and that was not easy to get. Metallic wire was costly and he needed miles of it. The other materials required were also expensive. He could find no sponsors. Morse continued his experiments without 48 anyone to help him and soon became destitute.
He told his pupils, "Let us stop here today. " The moment the students left the classroom, he 39 took up the compass. Was the compass all right? It was. The needle was pointing steadily to the north. He connected the wire again to the two poles of the battery and held the compass close to the wire. No, his eyes had not belied him. Just as electric current began to flow through the wire, the needle flung itself away from the true north. He also observed that if the direction of the electric current was changed, the needle of the compass changed its direction.
The story of electricity by A.K. Chakraborty, S.C. Bhattacharya