Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Photophone> ?p ?o }
- Photophone abstract "The photophone (later given the alternate name radiophone) is a telecommunications device which allowed for the transmission of speech on a beam of light. It was invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter on February 19, 1880, at Bell's laboratory at 1325 L Street in Washington, D.C. Both were later to become full associates in the Volta Laboratory Association, created and financed by Bell.On June 3, 1880, Bell's assistant transmitted a wireless voice telephone message from the roof of the Franklin School to the window of Bell's laboratory, some 213 meters (about 700 ft.) away.Bell believed the photophone was his most important invention. Of the 18 patents granted in Bell's name alone, and the 12 he shared with his collaborators, four were for the photophone, which Bell referred to as his "greatest achievement", telling a reporter shortly before his death that the photophone was "the greatest invention [I have] ever made, greater than the telephone".The photophone was a precursor to the fiber-optic communication systems which achieved worldwide popular usage starting in the 1980s. The master patent for the photophone (U.S. Patent 235,199 Apparatus for Signalling and Communicating, called Photophone) was issued in December 1880, many decades before its principles came to have practical applications.".
- Photophone thumbnail Photophone_plaque_(no_copyright_applies).jpg?width=300.
- Photophone wikiPageExternalLink books?id=a46ivzJ1yboC.
- Photophone wikiPageExternalLink v=onepage&q&f=false.
- Photophone wikiPageExternalLink bell1.htm.
- Photophone wikiPageExternalLink ~ammem_3ShO::@@@mdb=mcc,gottscho,detr,nfor,wpa,aap,cwar,bbpix,cowellbib,calbkbib,consrvbib,bdsbib,dag,fsaall,gmd,pan,vv,presp,varstg,suffrg,nawbib,horyd,wtc,toddbib,mgw,ncr,ngp,musdibib,hlaw,papr,lhbumbib,rbpebib,lbcoll,alad,hh,aaodyssey,magbell,bbc,dcm,raelbib,runyon,dukesm,lomaxbib,mtj,gottlieb,aep,qlt,coolbib,fpnas,aasm,denn,relpet,amss,aaeo,mff,afc911bib,mjm,mnwp,rbcmillerbib,molden,ww2map,mfdipbib,afcnyebib,klpmap,hawp,omhbib,rbaapcbib,mal,ncpsbib,ncpm,lhbprbib,ftvbib,afcreed,aipn,cwband,flwpabib,wpapos,cmns,psbib,pin,coplandbib,cola,tccc,curt,mharendt,lhbcbbib,eaa,haybib,mesnbib,fine,cwnyhs,svybib,mmorse,afcwwgbib,mymhiwebib,uncall,afcwip,mtaft,manz,llstbib,fawbib,berl,fmuever,cdn,upboverbib,mussm,cic,afcpearl,awh,awhbib,sgp,wright,lhbtnbib,afcesnbib,hurstonbib,mreynoldsbib,spaldingbib,sgproto,scsmbib,afccalbib,mamcol.
- Photophone wikiPageExternalLink kt8c6008r5.
- Photophone wikiPageExternalLink ModLightBiblio.htm.
- Photophone wikiPageExternalLink ModLightBiblio.html.
- Photophone wikiPageID "51160".
- Photophone wikiPageLength "31409".
- Photophone wikiPageOutDegree "111".
- Photophone wikiPageRevisionID "662641661".
- Photophone wikiPageWikiLink Admiralty.
- Photophone wikiPageWikiLink Alexander_Graham_Bell.
- Photophone wikiPageWikiLink Alexander_Melville_Bell.
- Photophone wikiPageWikiLink American_Association_for_the_Advancement_of_Science.
- Photophone wikiPageWikiLink American_Journal_of_Science.
- Photophone wikiPageWikiLink Atomic_line_filter.
- Photophone wikiPageWikiLink Bell_Labs.
- Photophone wikiPageWikiLink Bell_System.
- Photophone wikiPageWikiLink Bell_Telephone_Company.
- Photophone wikiPageWikiLink Boston.
- Photophone wikiPageWikiLink British_Admiralty.
- Photophone wikiPageWikiLink Carbon_black.
- Photophone wikiPageWikiLink Carl_Zeiss_AG.
- Photophone wikiPageWikiLink Category:Alexander_Graham_Bell.
- Photophone wikiPageWikiLink Category:History_of_telecommunications.
- Photophone wikiPageWikiLink Category:History_of_the_telephone.
- Photophone wikiPageWikiLink Category:Optical_communications.
- Photophone wikiPageWikiLink Catherine_MacKenzie.
- Photophone wikiPageWikiLink Charles_Sumner_Tainter.
- Photophone wikiPageWikiLink Cordless_telephone.
- Photophone wikiPageWikiLink Cornell_University.
- Photophone wikiPageWikiLink Electrical_resistance.
- Photophone wikiPageWikiLink Electrical_resistance_and_conductance.
- Photophone wikiPageWikiLink Electricity.
- Photophone wikiPageWikiLink Extremely_high_frequency.
- Photophone wikiPageWikiLink Fiber-optic_communication.
- Photophone wikiPageWikiLink Focus_(optics).
- Photophone wikiPageWikiLink Forrest_Mims.
- Photophone wikiPageWikiLink Franklin_School_(Washington,_D.C.).
- Photophone wikiPageWikiLink Free-space_optical_communication.
- Photophone wikiPageWikiLink German_Army_(Wehrmacht).
- Photophone wikiPageWikiLink German_Navy.
- Photophone wikiPageWikiLink Graphophone.
- Photophone wikiPageWikiLink Guglielmo_Marconi.
- Photophone wikiPageWikiLink History_of_radio.
- Photophone wikiPageWikiLink History_of_telecommunication.
- Photophone wikiPageWikiLink Incandescent_light_bulb.
- Photophone wikiPageWikiLink Infrared.
- Photophone wikiPageWikiLink Intellectual_property.
- Photophone wikiPageWikiLink Invention.
- Photophone wikiPageWikiLink Lampblack.
- Photophone wikiPageWikiLink Laser.
- Photophone wikiPageWikiLink Laser_microphone.
- Photophone wikiPageWikiLink Lead_sulfide.
- Photophone wikiPageWikiLink Lead_sulphide.
- Photophone wikiPageWikiLink Library_of_Congress.
- Photophone wikiPageWikiLink Light.
- Photophone wikiPageWikiLink List_of_Boston_University_people.
- Photophone wikiPageWikiLink Mabel_Gardiner_Hubbard.
- Photophone wikiPageWikiLink Melville_Bell_Grosvenor.
- Photophone wikiPageWikiLink Mie_scattering.
- Photophone wikiPageWikiLink Modulating_retro-reflector.
- Photophone wikiPageWikiLink Modulation.
- Photophone wikiPageWikiLink Molybdenite.
- Photophone wikiPageWikiLink National_Geographic_Society.
- Photophone wikiPageWikiLink Nature_(journal).
- Photophone wikiPageWikiLink New_York_Times.
- Photophone wikiPageWikiLink Nickname.
- Photophone wikiPageWikiLink Ohm.
- Photophone wikiPageWikiLink Optical_fiber.
- Photophone wikiPageWikiLink Optical_window.
- Photophone wikiPageWikiLink Parabolic_reflector.
- Photophone wikiPageWikiLink Patent.
- Photophone wikiPageWikiLink Pioneers,_a_Volunteer_Network.
- Photophone wikiPageWikiLink Precipitation.
- Photophone wikiPageWikiLink Precipitation_(meteorology).
- Photophone wikiPageWikiLink Radio_window.
- Photophone wikiPageWikiLink Rayleigh_scattering.
- Photophone wikiPageWikiLink Searchlight.
- Photophone wikiPageWikiLink Selenium.
- Photophone wikiPageWikiLink Semaphore_line.
- Photophone wikiPageWikiLink Siemens_&_Halske.
- Photophone wikiPageWikiLink Smithsonian_Institution.
- Photophone wikiPageWikiLink Spectroscopy.
- Photophone wikiPageWikiLink Star.
- Photophone wikiPageWikiLink Sunlight.
- Photophone wikiPageWikiLink Sunspot.
- Photophone wikiPageWikiLink Telecommunication.
- Photophone wikiPageWikiLink Telecommunications.
- Photophone wikiPageWikiLink Telephone_line.
- Photophone wikiPageWikiLink The_New_York_Times.
- Photophone wikiPageWikiLink Thomas_A._Watson.
- Photophone wikiPageWikiLink Thomas_Edison.
- Photophone wikiPageWikiLink Transit_of_Venus,_1874.
- Photophone wikiPageWikiLink Transmission_(telecommunications).
- Photophone wikiPageWikiLink Two-wire_circuit.
- Photophone wikiPageWikiLink UCLA.