Loading map...
{"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:Atanasoff-Berry_Computer,_1939#_f2d6c7b4427afadb7950924d12e531e6\" title=\"Milestones:Atanasoff-Berry Computer, 1939\"\u003EMilestones:Atanasoff-Berry Computer, 1939\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E226 Atanasoff Hall, Iowa State University, Ames, Iowa. Dedication: April 1990 - IEEE Central Iowa Section. John Vincent Atanasoff conceived basic design principles for the first electronic-digital computer in the winter of 1937 and, assisted by his graduate student, Clifford E. Berry, constructed a prototype here in October 1939. It used binary numbers, direct logic for calculation, and a regenerative memory. It embodied concepts that would be central to the future development of computers.\n\u003C/p\u003E","title":"Atanasoff-Berry Computer, 1939","link":"","lat":42.024,"lon":-93.6392,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:First_Wearable_Cardiac_Pacemaker,_1957-1958#_cd39246305f901e1b4333f0118f5f0ee\" title=\"Milestones:First Wearable Cardiac Pacemaker, 1957-1958\"\u003EMilestones:First Wearable Cardiac Pacemaker, 1957-1958\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EBakken Library and Museum, Minneapolis, Minnesota, U.S.A. Dedication: October 1999 - IEEE Twin Cities Section. During the winter of 1957-58, Earl E. Bakken developed the first wearable transistorized pacemaker, the request of heart surgeon, Dr. C. Walton Lillehei. As earlier pacemakers were AC-powered, this battery-powered device liberated patients from their power-cord tethers. The wearable pacemaker was a significant step in the evolution to fully-implantable units.\n\u003C/p\u003E","title":"First Wearable Cardiac Pacemaker, 1957-1958","link":"","lat":44.93875,"lon":-93.321602,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Long-Range_Shortwave_Voice_Transmissions_from_Byrd%27s_Antarctic_Expedition,_1934#_f4772fc0e13adecaf6490e555ebc48e8\" title=\"Milestones:Long-Range Shortwave Voice Transmissions from Byrd\u0026#39;s Antarctic Expedition, 1934\"\u003EMilestones:Long-Range Shortwave Voice Transmissions from Byrd\u0026#39;s Antarctic Expedition, 1934\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003ERockwell Collins, 400 Collins Rd, Cedar Rapids, Iowa, U.S.A. Dedication: February 2001 - IEEE Cedar Rapids Section. Beginning 3 February 1934, Vice Admiral Richard E. Byrd's Antarctic Expedition transmitted news releases to New York via short-wave radio voice equipment. From New York, the US nationwide CBS network broadcast the news releases to the public. Previous expeditions had been limited to dot-dash telegraphy, but innovative equipment from the newly formed Collins Radio Company made this long-range voice transmission feasible.\n\u003C/p\u003E","title":"Long-Range Shortwave Voice Transmissions from Byrd's Antarctic Expedition, 1934","link":"","lat":42.028337,"lon":-91.638685,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:One-Way_Police_Radio_Communication,_1928#_c3dcd2327d2f52d066da84acf70a01d0\" title=\"Milestones:One-Way Police Radio Communication, 1928\"\u003EMilestones:One-Way Police Radio Communication, 1928\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E1300 Beaubien, Detroit, Michigan, U.S.A. Dedicated May 1987 - IEEE Southeastern Michigan Section. At this site on April 7, 1928 the Detroit Police Department commenced regular one-way radio communication with its patrol cars. Developed by personnel of the department's radio bureau, the system was the product of seven years of experimentation under the direction of police commissioner, William P. Rutledge. Their work proved the practicality of land-mobile radio for police work and led to its adoption throughout the country.\n\u003C/p\u003E","title":"One-Way Police Radio Communication, 1928","link":"","lat":42.335699,"lon":-83.043004,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Single-element_Unidirectional_Microphone_-_Shure_Unidyne,_1939#_fcb76251125b81ad1c8bad37cb9e92bf\" title=\"Milestones:Single-element Unidirectional Microphone - Shure Unidyne, 1939\"\u003EMilestones:Single-element Unidirectional Microphone - Shure Unidyne, 1939\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EThe plaque may be viewed at 5800 W. Touhy Ave, Niles, IL, U.S.A. In 1939, Shure Incorporated introduced the Unidyne microphone. Using the Uniphase acoustical system, the patented Unidyne was the first microphone to provide directional characteristics using a single dynamic element. This breakthrough offered lower cost, greater reliability and improved performance for communication and public address systems. Shure Unidyne microphones are still manufactured and used worldwide in numerous audio applications.\n\u003C/p\u003E","title":"Single-element Unidirectional Microphone - Shure Unidyne, 1939","link":"","lat":42.012411,"lon":-87.772694,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Superconducting_Magnet_System_for_the_Fermilab_Tevatron_Accelerator/Collider,_1973-1985#_5a1a9d475b2e930b1624304fcc5bf5cf\" title=\"Milestones:Superconducting Magnet System for the Fermilab Tevatron Accelerator/Collider, 1973-1985\"\u003EMilestones:Superconducting Magnet System for the Fermilab Tevatron Accelerator/Collider, 1973-1985\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003EThe first large-scale use of superconducting magnets enabled the construction of the Tevatron. By 1985, the Tevatron achieved energy above 1 Tera electron-volt (TeV) in proton-antiproton collisions, making it the most powerful particle collider in the world until 2009. The Tevatron construction established the superconducting wire manufacturing infrastructure that made applications such as Magnetic Resonance Imaging (MRI) viable.\n\u003C/p\u003E","title":"Superconducting Magnet System for the Fermilab Tevatron Accelerator/Collider, 1973-1985","link":"","lat":41.83856,"lon":-88.26224,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:Vulcan_Street_Plant,_1882#_a162f19543d239e35aa5c102dc3e623e\" title=\"Milestones:Vulcan Street Plant, 1882\"\u003EMilestones:Vulcan Street Plant, 1882\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E807 S. Oneida St., Appleton, Wisconsin, U.S.A. Dedicated September 1977 - IEEE Northeastern Wisconsin Section. (ASME National Historic Engineering Landmark, jointly designated with ASCE and IEEE). Near this site on September 30, 1882, the world's first hydroelectric central station began operation. The station, here reproduced, was known as the Vulcan Street Plant and had a direct current generator capable of lighting 250 sixteen candle power lamps each equivalent to 50 watts. The generator operated at 110 volts and was driven through gears and belts by a water wheel operating under a ten foot fall of water.\n\u003C/p\u003E","title":"Vulcan Street Plant, 1882","link":"","lat":44.24764,"lon":-88.40412,"icon":"/w/images/6/6a/Purplemarker.png"},{"text":"\u003Cp\u003E\u003Ca href=\"/Milestones:World%27s_First_Reliable_High_Voltage_Power_Fuse,_1909#_70ee408b951169b5db8f87aa749b28f8\" title=\"Milestones:World\u0026#39;s First Reliable High Voltage Power Fuse, 1909\"\u003EMilestones:World\u0026#39;s First Reliable High Voltage Power Fuse, 1909\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003ES \u0026amp; C, Chicago, IL, USA. In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.\n\u003C/p\u003E","title":"World's First Reliable High Voltage Power Fuse, 1909","link":"","lat":42.001466,"lon":-87.679368,"icon":"/w/images/6/6a/Purplemarker.png"}],"imageLayers":[]}
