Vor Jahren gelang Graham Bell eine bahnbrechende Erfindung: Er entdeckte, wie man Schallwellen in elektrische Schwingungen. meldet Alexander. Alexander Graham Bell was the first to secure a patent for the telephone, but only just. And it almost cost him his marriage Im Alter von elf Jahren beschloss.
Erfindung des TelefonsSo meldete 15 Jahre später Alexander Graham Bell () in den USA das erste Telefon zum Patent an. wurden in Berlin und Mülhausen im Elsass. meldet Alexander. Alexander Graham Bell was the first to secure a patent for the telephone, but only just. And it almost cost him his marriage Im Alter von elf Jahren beschloss.
Graham Bell Telefon Daftar untuk surat berita kami VideoTELEFON NASIL İCAT EDİLDİ? - GRAHAM BELL VE MEUCCİ'NİN PATENT MÜCADELESİ !
In this vein, Bell was an advocate of forced sterilization and was closely connected with the eugenics movement in the United States.
In , he presented data to the National Academy of Sciences indicating that congenitally deaf parents were more likely to produce deaf children and tentatively suggested that deaf people should not be allowed to marry each other.
He also conducted sheep-breeding experiments at his estate to see if he could increase the numbers of twin and triplet births. In , he hastily constructed a metal detector as a way to try and locate a bullet lodged in President James Garfield after an assassination attempt.
He would later improve this and produce a device called a telephone probe, which would make a telephone receiver click when it touched metal.
And when Bell's newborn son, Edward, died from respiratory problems, he responded by designing a metal vacuum jacket that would facilitate breathing.
The apparatus was a forerunner of the iron lung used in the s to aid polio victims. Other ideas he dabbled in included inventing the audiometer to detect minor hearing problems and conducting experiments with energy recycling and alternative fuels.
Bell also worked on methods of removing salt from seawater. These interests may be considered minor activities compared to the time and effort he put into making advances in manned flight technology.
Bell's coffin was constructed of Beinn Bhreagh pine by his laboratory staff, lined with the same red silk fabric used in his tetrahedral kite experiments.
To help celebrate his life, his wife asked guests not to wear black the traditional funeral color while attending his service, during which soloist Jean MacDonald sang a verse of Robert Louis Stevenson 's "Requiem": .
Upon the conclusion of Bell's funeral, "every phone on the continent of North America was silenced in honor of the man who had given to mankind the means for direct communication at a distance".
Alexander Graham Bell was buried atop Beinn Bhreagh mountain, on his estate where he had resided increasingly for the last 35 years of his life, overlooking Bras d'Or Lake.
From Wikipedia, the free encyclopedia. Scientist and inventor known for his work on the telephone. Edinburgh , Scotland.
Beinn Bhreagh , Nova Scotia , Canada. University of Edinburgh University College London. Mabel Hubbard. Gardiner G. Hubbard father-in-law David C.
Bell uncle Gilbert H. Re-identified in , Bell made this wax-disc recording of his voice in Main article: Invention of the telephone. Main article: Elisha Gray and Alexander Bell telephone controversy.
Further information: The Telephone Cases. Further information: Beinn Bhreagh, Nova Scotia. Main article: Photophone. Play media. Main article: HD See also: Bell Telephone Memorial.
This list is incomplete ; you can help by adding missing items with reliable sources. Bell, Alexander Graham October Bibcode : AmJS Also published as: Bell, Alexander Graham September 23, Bibcode : Natur..
Bell, Alexander Graham Washington, D. Archived from the original PDF on October 29, Retrieved January 2, Bell, Alexander Graham February The National Geographic Magazine.
National Geographic Society. To the end of his days, when discussing himself, Bell would always add with pride "I am a teacher of the deaf".
When he moved to Canada in , Canadian and British citizenship were functionally identical, with Canadian citizenship only becoming a formal classification in He applied for American citizenship after , gained it in , and referred to himself as an American citizen from that point on.
Quote from Bell speaking to his wife: "you are a citizen because you can't help it — you were born one, but I chose to be one.
On October 24, , in Brantford, Ontario, the Governor General spoke at the unveiling of the Bell Telephone Memorial to an audience numbering in the thousands, saying: "Dr.
Bell is to be congratulated upon being able to receive the recognition of his fellow citizens and fellow countrymen". Bell's dislike of the telephone.
Of course, he never had one in his study. That was where he went when he wanted to be alone with his thoughts and his work.
The telephone, of course, means intrusion by the outside world. And the little difficulties and delays often attending the establishment of conversation But all really important business over the telephone he transacted himself.
There are few private houses more completely equipped with telephones than ours Bell was more particular about than our telephone service We never could have come here [to Beinn Bhreagh] in the first place or continued here, but for the telephone which kept us in close touch with doctors and neighbors and the regular telegraph office Bell did like to say in fun, "Why did I ever invent the Telephone," but no one had a higher appreciation of its indispensableness or used it more freely when need was—either personally or by deputy —and he was really tremendously proud of it and all it was accomplishing.
It received its historical designation from the Government of Canada on June 1, Mabel's exact age when she became deaf would later play a part in the debate on the effectiveness of manual versus oral education for deaf children , as children who are older at the onset of deafness retain greater vocalization skills and are thus more successful in oral education programs.
Some of the debate centred on whether Mabel had to relearn oral speech from scratch, or whether she never lost it. It was invented in Brantford at Tutela Heights in the summer of Others transmitted a sound or a click or a buzz but our boys [Bell and Watson] were the first to transmit speech one could understand.
Bell was so ecstatic that he wanted to jointly name his new invention and his new daughter Photophone Greek: " light—sound " ,   Bell wrote: "Only think!
Mabel's baby screamed inarticulately but mine spoke with distinct enunciation from the first. Bell quickly disassembled it and effected a repair, to the owner's amazement.
When asked how he was able to do so Bell only needed to introduce himself. Bell also chose maroon-colored silk as it would show up clearly against the light-colored sky in his photographic studies.
Views of an Expert. Hammondsport , New York, March 12, Boulton and was also created independently by Robert Esnault-Pelterie and several others.
Attending the formal ceremony were Bell's daughter, Mrs. To each side of the portico facing the monument are the engraved inscriptions "In Grateful Recognition of the Inventor of the Telephone".
Its dedication was broadcast live nationally by the Canadian Broadcasting Corporation. His wife, Mabel, daughter Daisy, and son-in-law David Fairchild had gathered around him.
His last view was of the moon rising above the mountain he loved". Halifax, Nova Scotia: Formac Publishing. IEEE Spectrum. April 30, Retrieved May 10, Bell Homestead National Historic Site.
Retrieved September 27, Douglas Archived from the original PDF on April 19, Retrieved May 4, Bell: Alexander Bell and the Conquest of Solitude.
Toronto, Ontario: Kids Can Press. Bell's Appreciation of the Telephone Service". Bell Telephone Quarterly. The couple married on July 11, They went on to have four children, including two sons who died as infants.
In , Bell started working on the harmonic telegraph — a device that allowed multiple messages to be transmitted over a wire at the same time.
While trying to perfect this technology, which was backed by a group of investors, Bell became preoccupied with finding a way to transmit human voice over wires.
By , Bell, with the help of his partner Thomas Watson, had come up with a simple receiver that could turn electricity into sound.
On March 7, , Bell was granted his telephone patent. Watson, come here. I want you. In , the U. In addition to the telephone, Bell worked on hundreds of projects throughout his career and received patents in various fields.
Diakses tanggal Pemeliharaan CS1: Format tanggal link. Alexander Graham Bell. Get exclusive access to content from our First Edition with your subscription.
Subscribe today. Alexander Graham Bell's sketch of a telephone. He filed the patent for his telephone at the U.
Patent Office on February 14, —just two hours before a rival, Elisha Gray, filed a declaration of intent to file a patent for a similar device.
Thomas A. Watson, assistant to Alexander Graham Bell, discussing the birth of the telephone, including the first words spoken.
Alexander Graham Bell, inventor who patented the telephone in , lecturing at Salem, Massachusetts top , while friends in his study at Boston listen to his lecture via telephone, February 12, Alexander Graham Bell, who patented the telephone in , inaugurating the 1,km mile telephone link between New York City and Chicago on October 18, Bell, and Alexander Graham Bell in , this vertically undulating groove, cut into a wax surface, was the most successful method employed in cylinder sound recording.
Learn More in these related Britannica articles:. Elisha Gray and Alexander Graham Bell , each independently, designed devices that could transmit speech electrically.
An electromagnetic coil was located near each…. About the same time, theoretical work on the electromagnetic properties of light and other radiation was beginning….
Alexander Graham Bell patented the first practical telephone in the United States in , and the first public telephone services were operating within a few years.
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Pada tahun , Reuben H. Donnelly dihasilkan direktori Yellow Pages berjenama pertama menampilkan nama perniagaan dan nombor telefon, yang dikategorikan mengikut jenis produk dan perkhidmatan yang disediakan.
Menjelang an, buku telefon, sama ada yang dikeluarkan oleh Sistem Bell atau penerbit swasta, di hampir setiap rumah dan perniagaan.
Tetapi dengan kedatangan Internet dan telefon bimbit, buku telefon telah diberikan sebahagian besarnya usang.
Sebelum tahun , tidak ada nombor telefon khusus untuk mencapai balas pertama sekiranya berlaku kecemasan. Yang berubah selepas siasatan kongres membawa kepada panggilan bagi penubuhan sistem tersebut di seluruh negara.
Pada 16 Februari , panggilan pertama diletakkan di Hayleyville, Alabama, di pejabat Alabama Telephone Company. The rangkaian akan diperkenalkan ke bandar-bandar dan bandar lain perlahan-lahan; ia tidak sehingga bahawa sekurang-kurangnya separuh daripada semua rumah di Amerika mempunyai akses kepada rangkaian kecemasan Beberapa penyelidik mencipta peranti untuk mengenal pasti bilangan panggilan yang diterima, termasuk ahli-ahli sains di Brazil, Jepun, dan Greece, bermula pada an.
Walaupun perkhidmatan tersebut yang pada mulanya dijual sebagai perkhidmatan mahal ditambah, ID pemanggil hari ini adalah satu fungsi standard yang terdapat pada setiap telefon bimbit dan boleh didapati di kebanyakan mana-mana talian tetap.
Ingin mengetahui lebih lanjut tentang sejarah telefon?Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone () and refinement of the phonograph (). He also worked on use of light to transmit sound, development of . 7/3/ · The telegraf dan telefon kedua-dua sistem elektrik berasaskan dawai, dan kejayaan Alexander Graham Bell dengan telefon datang sebagai hasil langsung daripada usahanya untuk meningkatkan telegraf. Apabila dia mula bereksperimen dengan isyarat elektrik, telegraf telah menjadi cara ditubuhkan komunikasi untuk kira-kira 30 tahun. Walaupun sistem yang sangat berjaya, telegraf . 11/29/ · Alexander Graham Bell was born in Edinburgh, Scotland, on March 3, Bell’s father was a professor of speech elocution at the University of . Alexander Graham Bell (March 3, –August 2, ) was a Scottish-born American inventor, scientist, and engineer best known for inventing the first practical telephone in , founding the Bell Telephone Company in , and a refinement of Thomas Edison’s phonograph in Alexander Graham Bell (Edinburgh, Skócia, március 3. – Beinn Bhreagh, Új-Skócia, Kanada, augusztus 2.) skót születésű amerikai fizikus, a telefon feltalálója (), a siketoktatási rendszer kidolgozója. A National Geographic Society egyik alapító tagja és második elnöke. Alexander Graham Bell (3 Mac - 2 Ogos ) ialah seorang saintis, pencipta dan pembawa pembaharuan. Sungguhpun paling dikenali kerana mencipta telefon, Bell juga digelar "bapa orang-orang pekak ". Alexander Graham Bell Bell c. Born March 3, Edinburgh, Scotland Died August 2, () (aged 75) Beinn Bhreagh, Nova Scotia, Canada Citizenship United Kingdom (–) British-subject in Canada (–) United States (–) Alma mater University of Edinburgh University College London Occupation Inventor Scientist Engineer Professor a Teacher of the deaf. Alexander Graham Bell, (born March 3, , Edinburgh, Scotland—died August 2, , Beinn Bhreagh, Cape Breton Island, Nova Scotia, Canada), Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone () and the refinement of the phonograph (). Die heute existierenden Schaltbilder für die angeblichen, früheren Entwicklungen wurden alle nachträglich angefertigt. Als Folge wurden zahlreiche Taube ohne Fragen Ohne Anmeldung Wissen und ohne ihr Einverständnis sterilisiert. EdinburghSchottland.