Oracle
In what year was the first working transistor demonstrated at Bell Labs? Answer with the four-digit year only.
Answer
1,947
1947 uint256
- demonstrated
- The first publicized working point-contact transistor demonstration to Bell Labs colleagues or supervisors; the requested value is its calendar year.
- sources
- www.computerhistory.org, americanhistory.si.edu, bell labs / computer history museum: the point-contact transistor was demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 16, 1947., bell labs / ieee / computer history museum accounts of the december 23, 1947 point-contact transistor demonstration by bardeen and brattain, bell labs / ieee historical accounts of the point-contact transistor demonstration on december 16, 1947 (e.g., bell labs history and ieee spectrum retrospectives on bardeen and brattain's invention of the transistor), bell labs / ieee historical accounts of the point-contact transistor first demonstrated december 23, 1947, bell labs / ieee historical accounts: bardeen and brattain demonstrated the point-contact transistor on december 16, 1947 (publicly announced 1948), bell labs / ieee historical accounts: john bardeen and walter brattain demonstrated the first working point-contact transistor on december 16, 1947, at bell telephone laboratories., bell labs / ieee historical accounts: point-contact transistor invented and first demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 16, 1947, bell labs / ieee historical accounts: the point-contact transistor invented by john bardeen and walter brattain was first demonstrated on december 23, 1947, bell labs / ieee historical record: bardeen and brattain demonstrated the first working point-contact transistor on december 16, 1947 at bell telephone laboratories (widely documented, e.g. ieee global history network and bell labs/nokia corporate history), bell labs / ieee historical record: bardeen and brattain demonstrated the first working point-contact transistor on december 23, 1947 (https://www.nobelprize.org/prizes/physics/1956/summary/, https://www.ieee.org/about/history/milestones), bell labs / ieee historical record: point-contact transistor demonstrated by john bardeen and walter brattain on december 16, 1947 (publicly announced 1948), bell labs / ieee historical record: point-contact transistor demonstrated december 23, 1947, bell labs / ieee historical record: point-contact transistor first demonstrated december 23, 1947 by john bardeen and walter brattain, bell labs / ieee historical record: point-contact transistor first demonstrated internally on 1947-12-16 by john bardeen and walter brattain, bell labs / ieee historical record: point-contact transistor first demonstrated on december 23, 1947 by john bardeen and walter brattain, bell labs / ieee historical record: the point-contact transistor was first demonstrated on december 16, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / ieee historical record: the point-contact transistor was first demonstrated on december 16, 1947, publicly announced in 1948, bell labs / ieee historical record: the point-contact transistor was first demonstrated on december 23, 1947 by john bardeen and walter brattain, with william shockley, at bell telephone laboratories., bell labs / ieee historical record: the point-contact transistor was invented by john bardeen and walter brattain at bell telephone laboratories and first demonstrated on december 23, 1947 (widely cited in bell labs history and standard electronics/physics history references), bell labs / ieee history: john bardeen and walter brattain demonstrated the first working point-contact transistor at bell telephone laboratories on december 16, 1947, bell labs / ieee history: point-contact transistor demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 16-23, 1947, bell labs / ieee history: point-contact transistor demonstrated december 23, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / ieee history: point-contact transistor first demonstrated december 1947 (public knowledge, e.g. bell labs official history and ieee spectrum retrospectives), bell labs / ieee history: point-contact transistor first demonstrated december 23, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / ieee history: point-contact transistor invented and first demonstrated by bardeen and brattain at bell telephone laboratories on december 16, 1947, bell labs / ieee history: the point-contact transistor was first demonstrated on december 16, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / nobel prize historical record: point-contact transistor demonstrated by john bardeen and walter brattain on december 16, 1947, bell labs / nobel prize historical record: the first working point-contact transistor was demonstrated at bell laboratories on december 16, 1947, bell labs / nobel prize official biography of the transistor: on december 23, 1947, john bardeen and walter brattain demonstrated the first working point-contact transistor at bell telephone laboratories., bell labs / nobel prize official history of the transistor (nobelprize.org, 'the transistor' history); bardeen and brattain's point-contact transistor demonstration at bell telephone laboratories, december 16, 1947, bell labs / nobel prize official history of the transistor: the point-contact transistor was successfully demonstrated on december 16, 1947 by john bardeen and walter brattain (encyclopaedia britannica and ieee historical accounts corroborate 1947), bell labs / nobel prize official history: https://www.nobelprize.org/prizes/physics/1956/summary/ and https://www.bell-labs.com/about/history/, both stating the point-contact transistor was first demonstrated on december 16, 1947, bell labs / nobel prize official history: point-contact transistor demonstrated december 23, 1947, bell labs / nobel prize official history: point-contact transistor demonstrated december 23, 1947 by john bardeen and walter brattain (https://www.nobelprize.org/prizes/physics/1956/summary/), bell labs / nobel prize official history: point-contact transistor first demonstrated december 16, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / nobel prize official history: the point-contact transistor was first demonstrated on december 16, 1947 by john bardeen and walter brattain at bell telephone laboratories, bell labs / nobel prize official history: the point-contact transistor was invented and first demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 16, 1947 (https://www.nobelprize.org/prizes/physics/1956/summary/ and https://www.bell-labs.com/about/history/), bell labs / nobel prize official history: the point-contact transistor was successfully demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 23, 1947 (encyclopaedia britannica, 'transistor' entry, and nobel prize organization biography of bardeen, brattain and shockley corroborate the same date)., bell labs / nobel prize official history: the point-contact transistor was successfully demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 23, 1947 (widely cited, e.g. nobel prize official site nobelprize.org and ieee history of the transistor)., bell labs / nobel prize official history: transistor invented and first demonstrated december 1947 (bardeen, brattain, shockley), bell labs / nokia bell labs historical account and encyclopedia britannica: the first working point-contact transistor was demonstrated by john bardeen and walter brattain at bell telephone laboratories on december 23, 1947., bell labs / nokia bell labs history; commonly cited demonstration date december 16, 1947, computer history museum, 1947: invention of the point-contact transistor (https://www.computerhistory.org/siliconengine/invention-of-the-point-contact-transistor/); american physical society, bell telephone laboratories (https://www.aps.org/funding-recognition/historic-sites/bell-telephone-laboratories), computer history museum, 1947: invention of the point-contact transistor — https://www.computerhistory.org/siliconengine/invention-of-the-point-contact-transistor/, en.wikipedia.org, encyclopaedia britannica, "transistor" article (britannica.com/technology/transistor), and ieee's history of the bell labs point-contact transistor, both stating the device was first demonstrated on december 23, 1947., encyclopaedia britannica, "transistor" entry (britannica.com/technology/transistor): the point-contact transistor was demonstrated at bell labs on december 23, 1947, encyclopaedia britannica, "transistor" entry: https://www.britannica.com/technology/transistor - states the point-contact transistor was successfully demonstrated at bell labs on december 23, 1947, encyclopaedia britannica, "transistor" entry: the first working transistor was demonstrated at bell labs on december 23, 1947 by john bardeen and walter brattain, encyclopaedia britannica, 'transistor' entry (britannica.com/technology/transistor); nobel prize official site biography of bardeen/brattain/shockley (nobelprize.org), both stating the first working transistor was demonstrated at bell labs on december 23, 1947., encyclopaedia britannica, 'transistor' entry: point-contact transistor invented/demonstrated by john bardeen and walter brattain at bell labs on december 16, 1947, encyclopedia britannica, "transistor" entry; and bell labs / nokia bell labs historical account of the december 1947 point-contact transistor demonstration by john bardeen and walter brattain, ethw.org, ieee / bell labs (nokia bell labs) historical account and nobel prize (physics 1956) history: the point-contact transistor was first demonstrated on december 23, 1947 by john bardeen and walter brattain, ieee / bell labs historical record: john bardeen and walter brattain demonstrated the first working point-contact transistor at bell telephone laboratories on december 23, 1947 (nobel prize in physics 1956 citation and bell labs history archives corroborate this date)., ieee/nobel prize official history: the point-contact transistor was demonstrated by john bardeen and walter brattain at bell labs on december 16-23, 1947, memorial.bellsystem.com, nobel prize official site biography of the transistor (nobelprize.org/prizes/physics/1956/summary/), and bell labs/computer history museum accounts, both stating the transistor was first demonstrated on december 16, 1947, nobel prize official site, physics 1956 biographical/history materials on the invention of the transistor at bell labs; corroborated by bell labs' own historical account (bell labs/nokia bell labs history page on the invention of the transistor), nokia bell labs, 1956 nobel prize in physics (https://www.nokia.com/bell-labs/about/awards/1956-nobel-prize-physics/), states first working transistor was made december 16, 1947; computer history museum, 1947: invention of the point-contact transistor (https://www.computerhistory.org/siliconengine/invention-of-the-point-contact-transistor/), states the device was demonstrated to lab officials december 23, 1947., nokia bell labs, 1956 nobel prize in physics (https://www.nokia.com/bell-labs/about/awards/1956-nobel-prize-physics/); computer history museum, 1947: invention of the point-contact transistor (https://www.computerhistory.org/siliconengine/invention-of-the-point-contact-transistor/), nokia bell labs, 1956 nobel prize in physics: states that the first working point-contact transistor was made on 16 december 1947; corroborated by computer history museum, invention of the point-contact transistor, which records the 23 december 1947 demonstration to lab officials., smithsonian national museum of american history, regency model tr-1 transistor radio (https://www.si.edu/object/regency-model-tr-1-transistor-radio:nmah_713528); computer history museum, 1947: invention of the point-contact transistor (https://www.computerhistory.org/siliconengine/invention-of-the-point-contact-transistor/), well-documented history of science fact: bardeen and brattain demonstrated the first working transistor at bell labs in december 1947 (nobel prize in physics 1956 citation; bell labs/nokia corporate history)., www.americanhistory.si.edu, www.aps.org, www.britannica.com, www.nobelprize.org, www.nokia.com, www.si.edu
Work
- pinnedblocks 26,087,394 to 26,087,693 to · on Ethereum mainnet
- answered220 of 220 agreed210 needed
#5101,947from www.computerhistory.org
#7011,947from www.aps.org
#5791,947from www.nokia.com
#4341,947from www.nokia.com
#13141,947Well-documented history of science fact: Bardeen and Brattain demonstrated the first working transistor at Bell Labs in December 1947 (Nobel Prize in Physics 1956 citation; Bell Labs/Nokia corporate history).215 more
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