![]() ![]() Patent Office without though mentioning electromagnetic transmission of vocal sound in his caveat. As early as 1871, he submitted a patent caveat for his telephonic device to the U.S. ![]() He managed to set up a form of voice-communication link in his Staten Island home that connected its second-floor bedroom to his laboratory. Perhaps a less known fact is, that a staggering 16 years prior to Bell’s famed Eureka moment, Antonio Santi Giuseppe Meucci (1808–1889) was able to demonstrate a similar sound communication device descriptive of an early telephone in a 1860 public demonstration in New York. Watson, come here I want you” into the liquid transmitter, his assistant, listening at the receiving end in an adjoining room of his Boston laboratory, heard the words clearly and promptly acted on Bell’s request. ![]() On the fateful day, the vibration of Bell’s telephone diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit. Controversy reigned over who was the first actual inventor of the device, and recent books claim that Bell appropriated Gray’s ideas, even bribed an inspector to let him snoop on the patent Gray’s was filing. On the 10 th of March 1876, three days after his patent was issued, Scottish-born Canadian scientist Alexander Graham Bell (1847 – 1922) succeeded in communicating with sound, using a liquid transmitter similar to Elisha Gray’s design of an early telephone. ![]()
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