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{"format":"leaflet","minzoom":false,"maxzoom":false,"limit":9999,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"... further results","default":"","import-annotation":false,"width":"auto","height":"700px","centre":false,"title":"","label":"","icon":"Purplemarker.png","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":false,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":true,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","showtitle":false,"hidenamespace":true,"template":"Marker","userparam":"","activeicon":"","pagelabel":false,"ajaxcoordproperty":"","ajaxquery":"","locations":[{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Birthplace_of_the_Bar_Code,_1948#_2d499ea3c4a1b7997c0c78c2f08025b9\" title=\"Milestones:Birthplace of the Bar Code, 1948\"\u003EMilestones:Birthplace of the Bar Code, 1948\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EPlaque may be viewed at Drexel University's Bossone Research Center, 31st Street and Market Street, Philadelphia, PA, U.S.A. In an attempt to automate the reading of product information in a local grocery store, Bernard Silver and Norman Joseph Woodland at the Drexel Institute of Technology developed a solution that became the ubiquitous Barcode Identification System. Patented in 1952, the Barcode has become a key technology for product identification and inventory control in industry and daily life.\n\u003C/p\u003E","title":"Birthplace of the Bar Code, 1948","link":"","lat":39.954923,"lon":-75.186342,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Book_%E2%80%9CExperiments_and_Observations_on_Electricity%E2%80%9D_by_Benjamin_Franklin,_1751#American_Philosophical_Society_Library,_Philadelphia,_PA.\" title=\"Milestones:Book \u201cExperiments and Observations on Electricity\u201d by Benjamin Franklin, 1751\"\u003EMilestones:Book \u201cExperiments and Observations on Electricity\u201d by Benjamin Franklin, 1751\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EAmerican Philosophical Society Library, Philadelphia, PA.\n\u003C/p\u003E\u003Cp\u003EAmerican Philosophical Society Library, Philadelphia, PA. In April 1751 the Royal Society published Benjamin Franklin's book, \"Experiments and Observations on Electricity: Made in Philadelphia in America.\" A collection of letters to London's Peter Collinson, it described Franklin's ideas about the nature of electricity and how electrical devices worked, and new experiments to investigate lightning.\n\u003C/p\u003E","title":"Book \u201cExperiments and Observations on Electricity\u201d by Benjamin Franklin, 1751","link":"","lat":39.948849,"lon":-75.147622,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Electronic_Numerical_Integrator_and_Computer,_1946#_b65c1f0fd45bb3a171e536224eb51d50\" title=\"Milestones:Electronic Numerical Integrator and Computer, 1946\"\u003EMilestones:Electronic Numerical Integrator and Computer, 1946\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EPhiladelphia, Pennsylvannia. Dedication: September 1987 - IEEE Philadelphia Section. A major advance in the history of computing occurred at the University of Pennsylvania in 1946 when engineers put the Electronic Numerical Integrator and Computer (ENIAC) into operation. Designed and constructed at the Moore School of Electrical Engineering under a U. S. Army contract during World War II, the ENIAC established the practicality of large scale, electronic digital computers and strongly influenced the development of the modern, stored-program, general-purpose computer.\n\u003C/p\u003E","title":"Electronic Numerical Integrator and Computer, 1946","link":"","lat":39.95281,"lon":-75.190048,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:First_Atomic_Clock,_1948#_3903673bc209742a7be87ea69911ccb3\" title=\"Milestones:First Atomic Clock, 1948\"\u003EMilestones:First Atomic Clock, 1948\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EThe first atomic clock, developed near this site by Harold Lyons at the National Bureau of Standards, revolutionized timekeeping by using transitions of the ammonia molecule as its source of frequency. Far more accurate than previous clocks, atomic clocks quickly replaced the Earth\u2019s rotational rate as the reference for world time. Atomic clock accuracy made possible many new technologies, including the Global Positioning System (GPS).\n\u003C/p\u003E","title":"First Atomic Clock, 1948","link":"","lat":38.942128,"lon":-77.062511,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:First_Technical_Meeting_of_the_American_Institute_of_Electrical_Engineers,_1884#_a72515fe904aaa3be4fade4effcd92aa\" title=\"Milestones:First Technical Meeting of the American Institute of Electrical Engineers, 1884\"\u003EMilestones:First Technical Meeting of the American Institute of Electrical Engineers, 1884\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EOn 16 December 1953, the first television broadcast in Western Canada was transmitted from this site by the Canadian Broadcasting Corporation's CBUT Channel 2. The engineering experience gained here was instrumental in the subsequent establishment of the more than one thousand public and private television broadcasting sites that serve Western Canada today.\n\u003C/p\u003E","title":"First Technical Meeting of the American Institute of Electrical Engineers, 1884","link":"","lat":39.958139,"lon":-75.172626,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Mainline_Electrification_of_the_Baltimore_and_Ohio_Railroad,_1895#_690653aea1f6f3687fa0ba9294ce9368\" title=\"Milestones:Mainline Electrification of the Baltimore and Ohio Railroad, 1895\"\u003EMilestones:Mainline Electrification of the Baltimore and Ohio Railroad, 1895\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E901 West Pratt St, Baltimore, Baltimore, MD. On 27 June 1895, at the nearby Howard Street Tunnel, the B\u0026amp;O demonstrated the first electrified main line railroad, and commercial operation began four days later. The electrification involved designing, engineering, and constructing electric locomotives far more powerful than any then existing and creating innovative electric power generation and distribution facilities. This pioneering achievement became a prototype for later main line railroad electrification.\n\u003C/p\u003E","title":"Mainline Electrification of the Baltimore and Ohio Railroad, 1895","link":"","lat":39.2854004,"lon":-76.6348044,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Manufacture_of_Transistors,_1951#_c2b54ded26d0dcf75a5fca981760de64\" title=\"Milestones:Manufacture of Transistors, 1951\"\u003EMilestones:Manufacture of Transistors, 1951\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EThe commercial manufacture of transistors began here in October 1951. Smaller, more efficient, and more reliable than the vacuum tubes they replaced, transistors revolutionized the electronics industry.\n\u003C/p\u003E","title":"Manufacture of Transistors, 1951","link":"","lat":40.622791,"lon":-75.451035,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:US_Naval_Computing_Machine_Laboratory,_1942-1945#_be54896c6acfa7e016ab644caa61755c\" title=\"Milestones:US Naval Computing Machine Laboratory, 1942-1945\"\u003EMilestones:US Naval Computing Machine Laboratory, 1942-1945\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EDayton, Ohio, U.S.A. Dedication: October 2001 - IEEE Dayton Section. In 1942, the United States Navy joined with the National Cash Register Company to design and manufacture a series of code-breaking machines. This project was located at the U.S. Naval Computing Machine Laboratory in Building 26, near this site. The machines built here, including the American \"Bombes\", incorporated advanced electronics and significantly influenced the course of World War II.\n\u003C/p\u003E","title":"US Naval Computing Machine Laboratory, 1942-1945","link":"","lat":39.728347,"lon":-84.200924,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Westinghouse_Atom_Smasher,_1937#_122e15aca1145cedd277505b8134a3e5\" title=\"Milestones:Westinghouse Atom Smasher, 1937\"\u003EMilestones:Westinghouse Atom Smasher, 1937\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EAvenue A and West Street, Forest Hills Borough, Pittsburgh, Pennsylvania, U.S.A. Dedication May 1985 - IEEE Pittsburgh Section. The five million volt van de Graaff generator represents the first large-scale program in nuclear physics established in industry. Constructed by the Westinghouse Electric Corporation in 1937, it made possible precise measurements of nuclear reactions and provided valuable research experience for the company's pioneering work in nuclear power.\n\u003C/p\u003E","title":"Westinghouse Atom Smasher, 1937","link":"","lat":40.434703,"lon":-79.890567,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Westinghouse_Radio_Station_KDKA,_1920#_837a3a09d5ae01cc4632449793746079\" title=\"Milestones:Westinghouse Radio Station KDKA, 1920\"\u003EMilestones:Westinghouse Radio Station KDKA, 1920\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EThe plaque may be viewed at Keystone Commons, 700 Braddock Ave, Pittsburgh, Pennsylvania, U.S.A. Dedication: June 1994 - IEEE Pittsburgh Section. Westinghouse Radio Station KDKA was a world pioneer of commercial radio broadcasting. Transmitting with a power of 100 watts on a wavelength of 360 meters, KDKA began scheduled programming with the Harding-Cox Presidential election returns on November 2, 1920. A shed, housing studio and transmitter, was atop the K Building of the Westinghouse East Pittsburgh works. Conceived by C.P. Davis, broadcasting as a public service evolved from Frank Conrad's weekly experimental broadcasts over his amateur radio station 8XK, attracting many regular listeners who had wireless receiving sets.\n\u003C/p\u003E","title":"Westinghouse Radio Station KDKA, 1920","link":"","lat":40.45418,"lon":-79.890567,"icon":"/w/images/6/6a/Purplemarker.png"}],"imageLayers":[]}
