Alexander Graham Bell, American inventor and teacher of the deaf, most famous for his invention of the telephone. Since the age of 18, Bell had been working on the idea of transmitting speech. In 1874, while working on a multiple telegraph, he developed the basic ideas for the telephone. His experiments with his assistant Thomas Watson finally proved successful on March 10, 1876, when the first complete sentence was transmitted: "Watson, come here; I want you.".Inventor: Alexander Graham Bell
Criteria; First practical. Modern prototype. Entrepreneur.
Birth: March 3, 1847, in Edinburgh, Scotland
Death: August 2, 1922, at Baddeck, Nova Scotia, Canada
Nationality: Scottish
Invention: telephone on March 10, 1876
Function: noun / tel·e·phone
Definition: An instrument which converts sound, specifically the human voice, to electrical impulses of various frequencies and then back to a tone that sounds like the original voice.
Patent(s): 174,465 (US) issued March 7, 1876 filed February 14, 1876
161,739 (US) issued April 6, 1875 filed March 6, 1875
2 comments:
,徵信社,尋人,偵探,偵探社,徵才,私家偵探,徵信,徵信社,徵信公司,抓猴,出軌,背叛,婚姻,劈腿,感情,第三者,婚外情,一夜情,小老婆,外遇,商標,市場調查,公平交易法,抓姦,債務,債務協商,應收帳款,詐欺,離婚,監護權,法律諮詢,法律常識,離婚諮詢,錄音,找人,追蹤器,徵信,徵信公司,尋人,抓姦,外遇,徵信,徵信社,徵信公司,尋人,抓姦,外遇,徵信,徵信社徵信公司,尋人,抓姦,外遇,徵信,徵信社,徵信公司,尋人,抓姦,外遇,徵信社
,徵信社,尋人,偵探,偵探社,徵才,私家偵探,徵信,徵信社,徵信公司,抓猴,出軌,背叛,婚姻,劈腿,感情,第三者,婚外情,一夜情,小老婆,外遇,商標,市場調查,公平交易法,抓姦,債務,債務協商,應收帳款,詐欺,離婚,監護權,法律諮詢,法律常識,離婚諮詢,錄音,找人,追蹤器,徵信,徵信公司,尋人,抓姦,外遇,徵信,徵信社,徵信公司,尋人,抓姦,外遇,徵信,徵信社徵信公司,尋人,抓姦,外遇,徵信,徵信社,徵信公司,尋人,抓姦,外遇,徵信社
Post a Comment