Bell Erfinder Listen bedeutender Menschen
Alexander Graham Bell war ein britischer, später US-amerikanischer Audiologe, Erfinder und Großunternehmer. Er gilt als der erste Mensch, der aus der Erfindung des Telefons Kapital geschlagen hat, indem er Ideen seiner Vorgänger zur Marktreife. Alexander G. Bell und das Telefon des Antonio Meucci[Bearbeiten | Quelltext bearbeiten]. Siehe auch: Erfindung. Nachdem Bell „sein“ Telefon zum Patent anmeldete, versuchte Meucci, dies anzufechten. Auch war dieses erste Telefon war nicht sonderlich gebrauchsfähig. meldet Alexander Graham Bell sein Telefon zum Patent an und verbesserte es immer. Mitte des Jahrhunderts wird das Telefon gleich vierfach erfunden. Am Ende aber kassiert Alexander Graham Bell den Ruhm.
Auch war dieses erste Telefon war nicht sonderlich gebrauchsfähig. meldet Alexander Graham Bell sein Telefon zum Patent an und verbesserte es immer. Für Donald Trump gehen viele große Erfindungen auf US-Amerikaner zurück: Glühbirne, Flugzeug, das Telefon. Publizist Wolfram Weimer will. Alexander G. Bell und das Telefon des Antonio Meucci[Bearbeiten | Quelltext bearbeiten]. Siehe auch: Erfindung. Alexander Graham Bell at Baddeck. Retrieved: December 29, January—February Bell was connected with the eugenics movement in the United States. Technology and Culture. Retrieved March 28, Bell uncle Gilbert H.
Bell Erfinder - Block OG Menu SimpleWiderstands, wurden im Folgenden zur Wandlung von Tönen in Stromschwankungen untersucht und genutzt. Lebensjahr eine Privatschule in Edinburgh und ab dem Ist es derjenige, der ein neues technisches Konzept als Erster in der Theorie präsentiert? Lebensjahr eine Schule in London. Ein Just click for source beschuldigte sich selbst der Bestechung, doch wurde seine wankelmütige Aussage in der internationalen Fachpresse bezweifelt. Reis konnte also gar kein Patent anmelden. Nachdem er in die USA umsiedelte, entwickelte er ein Telefon, mit dem er das Krankenzimmer seiner Ehefrau mit seiner Werkstatt verband. Hier beschäftigte er sich ab auch mit akustischen Experimenten zur Aufzeichnung von Schallwellen. Es ist der erste Satz, der jemals über ein Telefon gesprochen worden ist.
After setting up his workshop, Bell continued experiments based on Helmholtz's work with electricity and sound.
Bell's father was invited by Sarah Fuller , principal of the Boston School for Deaf Mutes which continues today as the public Horace Mann School for the Deaf ,  in Boston, Massachusetts, United States, to introduce the Visible Speech System by providing training for Fuller's instructors, but he declined the post in favour of his son.
Travelling to Boston in April , Bell proved successful in training the school's instructors. Returning home to Brantford after six months abroad, Bell continued his experiments with his "harmonic telegraph".
Unsure of his future, he first contemplated returning to London to complete his studies, but decided to return to Boston as a teacher.
Teaching his father's system, in October , Alexander Bell opened his "School of Vocal Physiology and Mechanics of Speech" in Boston, which attracted a large number of deaf pupils, with his first class numbering 30 students.
She was later to say that Bell dedicated his life to the penetration of that "inhuman silence which separates and estranges". Several influential people of the time, including Bell, viewed deafness as something that should be eradicated, and also believed that with resources and effort, they could teach the deaf to speak and avoid the use of sign language , thus enabling their integration within the wider society from which many were often being excluded.
During this period, he alternated between Boston and Brantford, spending summers in his Canadian home. At Boston University, Bell was "swept up" by the excitement engendered by the many scientists and inventors residing in the city.
He continued his research in sound and endeavored to find a way to transmit musical notes and articulate speech, but although absorbed by his experiments, he found it difficult to devote enough time to experimentation.
While days and evenings were occupied by his teaching and private classes, Bell began to stay awake late into the night, running experiment after experiment in rented facilities at his boarding house.
Keeping "night owl" hours, he worried that his work would be discovered and took great pains to lock up his notebooks and laboratory equipment.
Bell had a specially made table where he could place his notes and equipment inside a locking cover. Deciding to give up his lucrative private Boston practice, Bell retained only two students, six-year-old "Georgie" Sanders, deaf from birth, and year-old Mabel Hubbard.
Each pupil would play an important role in the next developments. George's father, Thomas Sanders, a wealthy businessman, offered Bell a place to stay in nearby Salem with Georgie's grandmother, complete with a room to "experiment".
Although the offer was made by George's mother and followed the year-long arrangement in where her son and his nurse had moved to quarters next to Bell's boarding house, it was clear that Mr.
Sanders was backing the proposal. The arrangement was for teacher and student to continue their work together, with free room and board thrown in.
Having lost her hearing after a near-fatal bout of scarlet fever close to her fifth birthday,   [N 12] she had learned to read lips but her father, Gardiner Greene Hubbard , Bell's benefactor and personal friend, wanted her to work directly with her teacher.
By , Bell's initial work on the harmonic telegraph had entered a formative stage, with progress made both at his new Boston "laboratory" a rented facility and at his family home in Canada a big success.
Bell thought it might be possible to generate undulating electrical currents that corresponded to sound waves. But he had no working model to demonstrate the feasibility of these ideas.
In , telegraph message traffic was rapidly expanding and in the words of Western Union President William Orton , had become "the nervous system of commerce".
Antonio Meucci sent a telephone model and technical details to the Western Union telegraph company but failed to win a meeting with executives.
When he asked for his materials to be returned, in , he was told they had been lost. Two years later Bell, who shared a laboratory with Meucci, filed a patent for a telephone, became a celebrity and made a lucrative deal with Western Union.
Meucci sued and was nearing victory—the supreme court agreed to hear the case and fraud charges were initiated against Bell—when the Florentine died in The legal action died with him.
In March , Bell and Pollok visited the scientist Joseph Henry , who was then director of the Smithsonian Institution , and asked Henry's advice on the electrical multi-reed apparatus that Bell hoped would transmit the human voice by telegraph.
Henry replied that Bell had "the germ of a great invention". When Bell said that he did not have the necessary knowledge, Henry replied, "Get it!
However, a chance meeting in between Bell and Thomas A. Watson , an experienced electrical designer and mechanic at the electrical machine shop of Charles Williams, changed all that.
With financial support from Sanders and Hubbard, Bell hired Thomas Watson as his assistant, [N 14] and the two of them experimented with acoustic telegraphy.
On June 2, , Watson accidentally plucked one of the reeds and Bell, at the receiving end of the wire, heard the overtones of the reed; overtones that would be necessary for transmitting speech.
That demonstrated to Bell that only one reed or armature was necessary, not multiple reeds. This led to the "gallows" sound-powered telephone , which could transmit indistinct, voice-like sounds, but not clear speech.
In , Bell developed an acoustic telegraph and drew up a patent application for it. Since he had agreed to share U. Meanwhile, Elisha Gray was also experimenting with acoustic telegraphy and thought of a way to transmit speech using a water transmitter.
On February 14, , Gray filed a caveat with the U. Patent Office for a telephone design that used a water transmitter.
That same morning, Bell's lawyer filed Bell's application with the patent office. There is considerable debate about who arrived first and Gray later challenged the primacy of Bell's patent.
Bell was in Boston on February 14 and did not arrive in Washington until February Bell's patent ,, was issued to Bell on March 7, , by the U.
Patent Office. Bell's patent covered "the method of, and apparatus for, transmitting vocal or other sounds telegraphically On March 10, , three days after his patent was issued, Bell succeeded in getting his telephone to work, using a liquid transmitter similar to Gray's design.
Vibration of the diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit.
When Bell spoke the sentence "Mr. Watson—Come here—I want to see you" into the liquid transmitter,  Watson, listening at the receiving end in an adjoining room, heard the words clearly.
Although Bell was, and still is, accused of stealing the telephone from Gray,  Bell used Gray's water transmitter design only after Bell's patent had been granted, and only as a proof of concept scientific experiment,  to prove to his own satisfaction that intelligible "articulate speech" Bell's words could be electrically transmitted.
The question of priority for the variable resistance feature of the telephone was raised by the examiner before he approved Bell's patent application.
He told Bell that his claim for the variable resistance feature was also described in Gray's caveat. Bell pointed to a variable resistance device in his previous application in which he described a cup of mercury, not water.
He had filed the mercury application at the patent office a year earlier on February 25, , long before Elisha Gray described the water device.
In addition, Gray abandoned his caveat, and because he did not contest Bell's priority, the examiner approved Bell's patent on March 3, Gray had reinvented the variable resistance telephone, but Bell was the first to write down the idea and the first to test it in a telephone.
The patent examiner , Zenas Fisk Wilber, later stated in an affidavit that he was an alcoholic who was much in debt to Bell's lawyer, Marcellus Bailey , with whom he had served in the Civil War.
He claimed he showed Gray's patent caveat to Bailey. Wilber also claimed after Bell arrived in Washington D.
Bell claimed they discussed the patent only in general terms, although in a letter to Gray, Bell admitted that he learned some of the technical details.
Bell denied in an affidavit that he ever gave Wilber any money. On March 10, Bell used "the instrument" in Boston to call Thomas Watson who was in another room but out of earshot.
He said, "Mr. Watson, come here — I want to see you" and Watson soon appeared at his side.
Continuing his experiments in Brantford, Bell brought home a working model of his telephone. On August 3, , from the telegraph office in Brantford, Ontario, Bell sent a tentative telegram to the village of Mount Pleasant four miles six kilometres distant, indicating that he was ready.
He made a telephone call via telegraph wires and faint voices were heard replying. The following night, he amazed guests as well as his family with a call between the Bell Homestead and the office of the Dominion Telegraph Company in Brantford along an improvised wire strung up along telegraph lines and fences, and laid through a tunnel.
This time, guests at the household distinctly heard people in Brantford reading and singing. The third test on August 10, , was made via the telegraph line between Brantford and Paris, Ontario, eight miles thirteen kilometres distant.
This test was said by many sources to be the "world's first long-distance call". The first two-way reciprocal conversation over a line occurred between Cambridge and Boston roughly 2.
The president of Western Union balked, countering that the telephone was nothing but a toy. By then, the Bell company no longer wanted to sell the patent.
Bell began a series of public demonstrations and lectures to introduce the new invention to the scientific community as well as the general public.
A short time later, his demonstration of an early telephone prototype at the Centennial Exposition in Philadelphia brought the telephone to international attention.
One of the judges at the Exhibition, Sir William Thomson later, Lord Kelvin , a renowned Scottish scientist, described the telephone as "the greatest by far of all the marvels of the electric telegraph".
These were the first publicly witnessed long-distance telephone calls in the UK. The queen considered the process to be "quite extraordinary" although the sound was "rather faint".
The Bell Telephone Company was created in , and by , more than , people in the U. Bell Company engineers made numerous other improvements to the telephone, which emerged as one of the most successful products ever.
In , the Bell company acquired Edison's patents for the carbon microphone from Western Union. This made the telephone practical for longer distances, and it was no longer necessary to shout to be heard at the receiving telephone.
In January , Bell made the first ceremonial transcontinental telephone call. The New York Times reported:.
Watson talked by telephone to each other over a two-mile wire stretched between Cambridge and Boston. It was the first wire conversation ever held.
Yesterday afternoon [on January 25, ], the same two men talked by telephone to each other over a 3,mile wire between New York and San Francisco.
Bell, the veteran inventor of the telephone, was in New York, and Mr. Watson, his former associate, was on the other side of the continent.
As is sometimes common in scientific discoveries, simultaneous developments can occur, as evidenced by a number of inventors who were at work on the telephone.
Supreme Court ,  but none was successful in establishing priority over the original Bell patent   and the Bell Telephone Company never lost a case that had proceeded to a final trial stage.
In personal correspondence to Bell, both Gray and Dolbear had acknowledged his prior work, which considerably weakened their later claims.
On January 13, , the U. Government moved to annul the patent issued to Bell on the grounds of fraud and misrepresentation. After a series of decisions and reversals, the Bell company won a decision in the Supreme Court, though a couple of the original claims from the lower court cases were left undecided.
With a change in administration and charges of conflict of interest on both sides arising from the original trial, the US Attorney General dropped the lawsuit on November 30, , leaving several issues undecided on the merits.
During a deposition filed for the trial, Italian inventor Antonio Meucci also claimed to have created the first working model of a telephone in Italy in In , in the first of three cases in which he was involved, [N 16] Meucci took the stand as a witness in the hope of establishing his invention's priority.
Meucci's testimony in this case was disputed due to a lack of material evidence for his inventions, as his working models were purportedly lost at the laboratory of American District Telegraph ADT of New York, which was later incorporated as a subsidiary of Western Union in House of Representatives on June 11, , stated that Meucci's "work in the invention of the telephone should be acknowledged".
The Siemens company produced near-identical copies of the Bell telephone without having to pay royalties. The strain put on Bell by his constant appearances in court, necessitated by the legal battles, eventually resulted in his resignation from the company.
His wedding present to his bride was to turn over 1, of his 1, shares in the newly formed Bell Telephone Company. During that excursion, Bell took a handmade model of his telephone with him, making it a "working holiday".
The courtship had begun years earlier; however, Bell waited until he was more financially secure before marrying. Although the telephone appeared to be an "instant" success, it was not initially a profitable venture and Bell's main sources of income were from lectures until after From , he would sign his name "Alec Bell".
The Bell family home was in Cambridge, Massachusetts, until when Bell's father-in-law bought a house in Washington, D.
Bell was a British subject throughout his early life in Scotland and later in Canada until when he became a naturalized citizen of the United States.
In , he characterized his status as: "I am not one of those hyphenated Americans who claim allegiance to two countries.
By , a new summer retreat was contemplated. He was an enthusiastic boater, and Bell and his family sailed or rowed a long series of vessels on Bras d'Or Lake , ordering additional vessels from the H.
In his final, and some of his most productive years, Bell split his residency between Washington, D. Until the end of his life, Bell and his family would alternate between the two homes, but Beinn Bhreagh would, over the next 30 years, become more than a summer home as Bell became so absorbed in his experiments that his annual stays lengthened.
Both Mabel and Bell became immersed in the Baddeck community and were accepted by the villagers as "their own". Mabel and Bell mobilized the community to help victims in Halifax.
Although Alexander Graham Bell is most often associated with the invention of the telephone, his interests were extremely varied.
These included 14 for the telephone and telegraph, four for the photophone , one for the phonograph , five for aerial vehicles, four for "hydroairplanes", and two for selenium cells.
Bell's inventions spanned a wide range of interests and included a metal jacket to assist in breathing, the audiometer to detect minor hearing problems, a device to locate icebergs, investigations on how to separate salt from seawater, and work on finding alternative fuels.
Bell worked extensively in medical research and invented techniques for teaching speech to the deaf. During his Volta Laboratory period, Bell and his associates considered impressing a magnetic field on a record as a means of reproducing sound.
Although the trio briefly experimented with the concept, they could not develop a workable prototype. They abandoned the idea, never realizing they had glimpsed a basic principle which would one day find its application in the tape recorder , the hard disc and floppy disc drive, and other magnetic media.
Bell's own home used a primitive form of air conditioning, in which fans blew currents of air across great blocks of ice.
He also anticipated modern concerns with fuel shortages and industrial pollution. Methane gas, he reasoned, could be produced from the waste of farms and factories.
At his Canadian estate in Nova Scotia, he experimented with composting toilets and devices to capture water from the atmosphere. In a magazine interview published shortly before his death, he reflected on the possibility of using solar panels to heat houses.
Bell and his assistant Charles Sumner Tainter jointly invented a wireless telephone, named a photophone , which allowed for the transmission of both sounds and normal human conversations on a beam of light.
On June 21, , Bell's assistant transmitted a wireless voice telephone message a considerable distance, from the roof of the Franklin School in Washington, D.
Bell believed the photophone's principles were his life's "greatest achievement", telling a reporter shortly before his death that the photophone was "the greatest invention [I have] ever made, greater than the telephone".
Bell is also credited with developing one of the early versions of a metal detector through the use of an induction balance, after the shooting of U.
President James A. Garfield in According to some accounts, the metal detector worked flawlessly in tests but did not find Guiteau 's bullet, partly because the metal bed frame on which the President was lying disturbed the instrument, resulting in static.
Bell's own detailed account, presented to the American Association for the Advancement of Science in , differs in several particulars from most of the many and varied versions now in circulation, by concluding that extraneous metal was not to blame for failure to locate the bullet.
Perplexed by the peculiar results he had obtained during an examination of Garfield, Bell "proceeded to the Executive Mansion the next morning It was then recollected that underneath the horse-hair mattress on which the President lay was another mattress composed of steel wires.
Upon obtaining a duplicate, the mattress was found to consist of a sort of net of woven steel wires, with large meshes.
The extent of the [area that produced a response from the detector] having been so small, as compared with the area of the bed, it seemed reasonable to conclude that the steel mattress had produced no detrimental effect.
Meacham explained the basic principle of hydrofoils and hydroplanes. Bell considered the invention of the hydroplane as a very significant achievement.
Based on information gained from that article, he began to sketch concepts of what is now called a hydrofoil boat. Bell and assistant Frederick W.
Baldwin studied the work of the Italian inventor Enrico Forlanini and began testing models. This led him and Bell to the development of practical hydrofoil watercraft.
During his world tour of —11, Bell and Baldwin met with Forlanini in France. They had rides in the Forlanini hydrofoil boat over Lake Maggiore.
Baldwin described it as being as smooth as flying. On returning to Baddeck, a number of initial concepts were built as experimental models, including the Dhonnas Beag Scottish Gaelic for little devil , the first self-propelled Bell-Baldwin hydrofoil.
Pinaud's experience in boat-building enabled him to make useful design changes to the HD Bell's report to the U.
Navy permitted him to obtain two horsepower kilowatts engines in July On September 9, , the HD-4 set a world marine speed record of In , Bell had begun experiments to develop motor-powered heavier-than-air aircraft.
The AEA was first formed as Bell shared the vision to fly with his wife, who advised him to seek "young" help as Bell was at the age of In , Bell experimented with tetrahedral box kites and wings constructed of multiple compound tetrahedral kites covered in maroon silk.
Bell was a supporter of aerospace engineering research through the Aerial Experiment Association AEA , officially formed at Baddeck, Nova Scotia, in October at the suggestion of his wife Mabel and with her financial support after the sale of some of her real estate.
Curtiss , a motorcycle manufacturer at the time and who held the title "world's fastest man", having ridden his self-constructed motor bicycle around in the shortest time, and who was later awarded the Scientific American Trophy for the first official one-kilometre flight in the Western hemisphere , and who later became a world-renowned airplane manufacturer; Lieutenant Thomas Selfridge , an official observer from the U.
Federal government and one of the few people in the army who believed that aviation was the future; Frederick W. The AEA's work progressed to heavier-than-air machines, applying their knowledge of kites to gliders.
Moving to Hammondsport, the group then designed and built the Red Wing , framed in bamboo and covered in red silk and powered by a small air-cooled engine.
One of the AEA's inventions, a practical wingtip form of the aileron , was to become a standard component on all aircraft.
Bell allowed it to continue with experiments. Selfridge had also become the first person killed in a powered heavier-than-air flight in a crash of the Wright Flyer at Fort Myer , Virginia , on September 17, Their final aircraft design, the Silver Dart , embodied all of the advancements found in the earlier machines.
McCurdy from the frozen ice of Bras d'Or made the first aircraft flight in Canada. Bell was connected with the eugenics movement in the United States.
In his lecture Memoir upon the formation of a deaf variety of the human race presented to the National Academy of Sciences on November 13, the year of his election as a Member of the National Academy of Sciences , he noted that congenitally deaf parents were more likely to produce deaf children and tentatively suggested that couples where both parties were deaf should not marry.
The committee unequivocally extended the principle to humans. Organizations such as these advocated passing laws with success in some states that established the compulsory sterilization of people deemed to be, as Bell called them, a "defective variety of the human race".
By the late s, about half the states in the U. Honors and tributes flowed to Bell in increasing numbers as his invention became ubiquitous and his personal fame grew.
Bell received numerous honorary degrees from colleges and universities to the point that the requests almost became burdensome.
These included statuary monuments to both him and the new form of communication his telephone created, including the Bell Telephone Memorial erected in his honor in Alexander Graham Bell Gardens in Brantford , Ontario, in A number of historic sites and other marks commemorate Bell in North America and Europe, including the first telephone companies in the United States and Canada.
Among the major sites are:. These included the prestigious 'Volta Laboratory Association' , also known as the Volta Laboratory and as the 'Alexander Graham Bell Laboratory', and which eventually led to the Volta Bureau as a center for studies on deafness which is still in operation in Georgetown, Washington, D.
The Volta Laboratory became an experimental facility devoted to scientific discovery, and the very next year it improved Edison's phonograph by substituting wax for tinfoil as the recording medium and incising the recording rather than indenting it, key upgrades that Edison himself later adopted.
In partnership with Gardiner Greene Hubbard , Bell helped establish the publication Science during the early s.
In , Bell was elected as the second president of the National Geographic Society , serving until , and was primarily responsible for the extensive use of illustrations, including photography, in the magazine.
He was one of the founders of the American Institute of Electrical Engineers in and served as its president from — The First Day of Issue ceremony was held on October 28 in Boston, Massachusetts, the city where Bell spent considerable time on research and working with the deaf.
Er gilt als der erste Mensch, der aus der Erfindung des Telefons Kapital geschlagen hat, indem er Ideen seiner Vorgänger zur Marktreife weiterentwickelte.
Bell, der wie seine beiden Brüder zunächst von der gehörlosen Mutter unterrichtet wurde, besuchte ab dem Lebensjahr eine Privatschule in Edinburgh und ab dem Lebensjahr eine Schule in London.
Er studierte in Edinburgh Latein und Griechisch. Bell studierte bis Anatomie und Physiologie der menschlichen Stimme.
Nachdem Alexanders Brüder Edward und Melville beide an Tuberkulose gestorben waren, siedelten Alexander und seine Eltern nach Kanada über, wo der Vater ein besseres Klima erhoffte und eine Lehrtätigkeit aufnahm.
Die historisch nachhaltigste Wirkung hatte Bell mit der Entwicklung und Einführung des Telefons zu einem gebrauchsfähigen System. Bis zu seinem Tode beschäftigte sich Bell vor allem mit weiteren Entwicklungen und Erfindungen auf zahlreichen technischen Gebieten sowie auch mit Untersuchungen zur Eugenik der Taubheit.
Bells Mutter Eliza Symonds Bell war stark schwerhörig, Bell konnte sich jedoch mit ihr mit besonders tiefer Stimme unterhalten.
Das sowie die familiär vorgeprägte berufliche Laufbahn veranlassten Bell offensichtlich, einer der engagiertesten Befürworter des lautsprachlich orientierten Erziehungsprinzips für Gehörlose im Gegensatz zu gebärdensprachlich orientierten Methoden zu werden.
Ein Luftballon, den sich jedes dieser Kinder ans Ohr hielt, konnte die Schwingungen in der Stimme aufnehmen.
Bell bleibt danach für den Rest seines Lebens Mitglied des Aufsichtsrats der Schule und wird in den letzten fünf Lebensjahren auch dessen Vorsitzender.
An dieser Schule lernt er auch Mabel, seine spätere Frau kennen. Bell soll sich in erster Linie als Gehörlosenlehrer und weniger als Erfinder gesehen haben.
Eine Ironie der Geschichte ist, dass Bell, der stets beabsichtigte, taube Menschen zu fördern, mit dem Telefon ein System verbreitete, das zum Standard-Instrument in Beruf, Geschäftsleben und Alltag wurde, aber für Gehörlose fast ein Jahrhundert lang noch nicht benutzbar war.
Nachdem er in die USA umsiedelte, entwickelte er ein Telefon, mit dem er das Krankenzimmer seiner Ehefrau mit seiner Werkstatt verband.
In den nächsten 10 Jahren vervollkommnete er seine Anordnung, präsentierte sie ab öffentlich und berichtete in der italienischsprachigen Presse.
Später wurde verbreitet, er hätte nicht die nötigen Mittel für die Erteilung gehabt. Diese Darstellung wird allerdings von Kritikern angezweifelt, da er in derselben Zeit — vier andere Patente erteilt bekam.
Meucci reichte seine Unterlagen und Geräte bei Edward B. Als Meucci diese Gerätschaften und Unterlagen von Grant zurückforderte, wurde ihm mitgeteilt, man habe diese verloren.
Meucci war des Englischen nicht mächtig und beauftragte einen Anwalt, gegen Bells Vorgehen zu protestieren, was allerdings nie geschah.
Trotz jahrzehntelanger Streitigkeiten gelang es Antonio Meucci nicht, das Patent oder wenigstens finanzielle Entschädigungen von Bell zu erhalten.
Er starb als verarmter Mann. Am Oktober  führte er den Fernsprecher zahlreichen  Mitgliedern des Physikalischen Vereins in Frankfurt vor.
Damit konnte er Musiknoten an einen Empfänger schicken, für Sprache war das Gerät noch nicht geeignet. Sein Vater versprach ihm und seinen Brüdern einen Preis, wenn sie diese Sprechmaschine weiterentwickeln würden.
Bell konnte aber von der für ihn wichtigen Grundlagenforschung des Deutschen profitieren. The Beaux-Arts building, was purchased by Alexander Graham Bell's father-in-law in , who gave the home to his daughter Mabel and Alexander.
Photo from June Bell's daughter Elsie May and Gilbert H. Grosvenor , three-quarter length portrait, seated, facing front holding their son, Melville Bell, Dexter small jpeg file.
Dedication of the Bell Telephone Memorial. View of the dedication of the Bell Telephone Memorial , erected to commemorate the invention of the telephone by Alexander Graham Bell in Brantford, Ontario, Canada, in the summer of Bell placing the first New York to Chicago telephone call in Image also appears on cover of Bruce's biography of Bell.
Thomas Selfridge , member of Bell's Aerial Experiment Association , was the first person to die in a powered airplane crash, during a flight with Orville Wright.
Bell on the telephone in New York calling Chicago in Comparison of the illustration of the telephone in Alexander Graham Bell's diaries and Elisha Gray's patent application , March Illustration of a photophone transmitter , showing the path of reflected sunlight, before and after being modulated.
Illustration of a photophone receiver , depicting the conversion of modulated light to sound. Plaque notes it was part of 1st two-way 'long distance' conversation , 9 Oct.
Bell at 60 Kilby Street, Boston. Photo taken Washington Post story reprinting Zenas Fisk Wilber's sworn affidavit about who really invented the telephone, May 22, , pg.
A woodcut illustration of an early wax cylinder phonograph , or graphophone. Bell, and Sumner Tainter, Graphophone similar to previous image, users turns the cylinder by pumping the treadle, and speaks into the mouthpiece.
Recording played back by replacing the mouthpiece with earphones lying on the desk, An early experimental non-magnetic tape recorder invented by the Volta Associates and patented in July-Aug A standard desk phone c.
Photo of July Image of Bell in front of the Bell Telephone Memorial , erected to commemorate the invention of the telephone by Alexander Graham Bell in Brantford, Ontario, Canada in the summer of Bell Statue in the front portico of the Bell Telephone Building in Brantford , Ontario, The Telephone City , where he conceived of and invented his famous telecommunications device.
The master patent , No. Johnson Deyonhehgon , seated centre c. Photo courtesy: IEEE. Bell, opened inIch wollte schon immer wissen wer das Telefon erfunden hatte und wie man es erfunden hatte. Mir hat dieses Thema sehr gut gefallen und es was sehr spannend. Doch konnte Bell die Erfindung des Telefons wirklich für sich verbuchen? Konkurrenzprodukte im Zuge dieser wertvollen Erfindung vorausahnend, reichte Bells. Für Donald Trump gehen viele große Erfindungen auf US-Amerikaner zurück: Glühbirne, Flugzeug, das Telefon. Publizist Wolfram Weimer will. Dieses Patent schloss somit auch die bereits zuvor gemachte Erfindung des Deutschen Philipp Reis mit ein, nämlich dessen Telefon. Bell gründete die Firma. Historisches Telefon, das die Technik von Philipp Reis nutzte. Quelle: picture-alliance / maxppp. Bell gilt noch immer als Erfinder des Telefons.