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Louis Smullin
Louis Dijour Smullin (February 5, 1916 - June 4, 2009) was an American electrical engineer who spend most of his career at the Massachusetts Institute of Technology (MIT). He is best known for his work with Giorgio Fiocco to measure the distance to the Moon using a ruby laser in 1962, shortly after that device was invented. Earlier, he had worked in the microwave radar field at the MIT Radiation Laboratory and was instrumental in creating the Lincoln Laboratory that carried on this work. Later he worked on developing instrumentation for nuclear fusion research and many other projects. He retired in 1986 but worked in the department until 2001. Life and career Smullin was born in Detroit to Isaac M. Smullin (May 15, 1887 - December 12, 1965) and Ida May (born June 11, 1887). His parents were Russian Jewish immigrants. His father was an advocate for the Communist International Labor Defense, was involved with Th. L. Poindexter in Detroit around 1938 in the Roumanian Workers Educational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineer
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is now divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control, and electrica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photomultiplier Tube
Photomultiplier tubes (photomultipliers or PMTs for short) are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum. They are members of the class of vacuum tubes, more specifically vacuum phototubes. These detectors multiply the current produced by incident light by as much as 100 million times or 108 (i.e., 160 dB),Decibels are power ratios. Power is proportional to I2 (current squared). Thus a current gain of 108 produces a power gain of 1016, or 160 dB in multiple dynode stages, enabling (for example) individual photons to be detected when the incident flux of light is low. The combination of high gain, low noise, high frequency response or, equivalently, ultra-fast response, and large area of collection has maintained photomultipliers an essential place in low light level spectroscopy, confocal microscopy, Raman spectroscopy, fluorescence spectroscopy, nuclear and particle physics, astronomy, medical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Physical Society
The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of knowledge of physics. The society publishes more than a dozen scientific journals, including the prestigious '' Physical Review'' and ''Physical Review Letters'', and organizes more than twenty science meetings each year. APS is a member society of the American Institute of Physics. Since January 2021 the organization has been led by chief executive officer Jonathan Bagger. History The American Physical Society was founded on May 20, 1899, when thirty-six physicists gathered at Columbia University for that purpose. They proclaimed the mission of the new Society to be "to advance and diffuse the knowledge of physics", and in one way or another the APS has been at that task ever since. In the early years, virtually the sole activity of the AP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIT Electrical Engineering And Computer Science Department
The MIT Electrical Engineering and Computer Science Department is an engineering department of the Massachusetts Institute of Technology in Cambridge, Massachusetts. It is regarded as one of the most prestigious in the world, and offers degrees of Master of Science, Master of Engineering, Doctor of Philosophy, and Doctor of Science. History The curriculum for the electrical engineering program was created in 1882, and was the first such program in the country. It was initially taught by the physics faculty. In 1902, the Institute set up a separate Electrical Engineering department. The department was renamed to Electrical Engineering and Computer Science in 1975, to highlight the new addition of computer science to the program. Academics Current faculty Professors * Silvio Micali * Harold Abelson * Anant Agarwal * Akintunde I. Akinwande * Dimitri A. Antoniadis * Arvind * Arthur B. Baggeroer * Hari Balakrishnan Dimitri P. BertsekasRobert C. BerwickDuane S. BoningRodney A. Brooks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Controlled Thermonuclear Fusion
Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors. Research into fusion reactors began in the 1940s, but as of 2022, only one design, an inertial confinement laser-driven fusion machine at the US National Ignition Facility, has conclusively produced a positive fusion energy gain factor, i.e. more power output than input. Fusion processes require fuel and a confined environment with sufficient temperature, pressure, and confinement time to create a plasma in which fusion can occur. The combination of these figures that results in a power-producing system is known as the Lawson criterion. In stars, the most common fuel is hydrogen, and gravity provides extremely long confinement times that reach the conditions needed for fusion en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LIDAR
Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be used to make digital 3-D representations of areas on the Earth's surface and ocean bottom of the intertidal and near coastal zone by varying the wavelength of light. It has terrestrial, airborne, and mobile applications. ''Lidar'' is an acronym of "light detection and ranging" or "laser imaging, detection, and ranging". It is sometimes called 3-D laser scanning, a special combination of 3-D scanning and laser scanning. Lidar is commonly used to make high-resolution maps, with applications in surveying, geodesy, geomatics, archaeology, geography, geology, geomorphology, seismology, forestry, atmospheric physics, laser guidance, airborne laser swath mapping (ALSM), and laser altimetry. It is also used in control and navigation for som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giorgio Fiocco
Giorgio Fiocco (13 June 1931 – 31 July 2012) was an Italian physicist, known for the development of the Lidar for the remote sensing of the atmosphere. In 1962 at MIT, together with Louis Smullin, Fiocco developed the first Lidar system, aiming a laser beam to the Moon and detecting the return pulse. Fiocco was full professor of geophysics at the University of Florence, then since 1974, professor of Terrestrial Physics at the Sapienza University of Rome. From 1994 to 1995 Fiocco was president of the Italian Space Agency The Italian Space Agency ( it, Agenzia Spaziale Italiana; ASI) is a government agency established in 1988 to fund, regulate and coordinate space exploration activities in Italy. The agency cooperates with numerous national and international entit .... Fiocco pioneered the application of the Lidar to the remote sensing of the atmosphere. He died in Rome on 31 July 2012. Publications * * References * * 1931 births 2012 deaths Italian physic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Rhyne Killian
James Rhyne Killian Jr. (July 24, 1904 – January 29, 1988) was the 10th president of the Massachusetts Institute of Technology, from 1948 until 1959. Early life Killian was born on July 24, 1904, in Blacksburg, South Carolina. His father was a textile maker. He attended The McCallie School in Chattanooga, Tlater studied at Duke University (formerly Trinity University) for two years until he transferred to MIT, where he received a Bachelor of Business Administration and engineering administration in 1926. While there, he was a member of the Sigma Chi fraternity. Career Leadership at MIT In 1932, while serving as the editor of MIT's alumni magazine ''Technology Review'', Killian was instrumental in the founding of Technology Press, the publishing imprint that would later become the institute's independent publishing house, MIT Press. He became executive assistant to MIT President Karl Taylor Compton in 1939, and co-directed the wartime operation of MIT, which strongly suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lexington, Massachusetts
Lexington is a suburban town in Middlesex County, Massachusetts, United States. It is 10 miles (16 km) from Downtown Boston. The population was 34,454 as of the 2020 census. The area was originally inhabited by Native Americans, and was first settled by Europeans in 1641 as a farming community. Lexington is well known as the site of the first shots of the American Revolutionary War, in the Battle of Lexington on April 19, 1775, where the " Shot heard 'round the world" took place. It is home to Minute Man National Historical Park. History Indigenous history Native Americans inhabited the area that would become Lexington for thousands of years prior to European colonization of the Americas, as attested by a woodland era archaeological site near Loring Hill south of the town center. At the time of European contact, the area may have been a border region between Naumkeag or Pawtucket to the northeast, Massachusett to the south, and Nipmuc to the west, though the land was ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIT Lincoln Laboratory
The MIT Lincoln Laboratory, located in Lexington, Massachusetts, is a United States Department of Defense federally funded research and development center chartered to apply advanced technology to problems of national security. Research and development activities focus on long-term technology development as well as rapid system prototyping and demonstration. Its core competencies are in sensors, integrated sensing, signal processing for information extraction, decision-making support, and communications. These efforts are aligned within ten mission areas. The laboratory also maintains several field sites around the world. The laboratory transfers much of its advanced technology to government agencies, industry, and academia, and has launched more than 100 start-ups. History Origins At the urging of the United States Air Force, the Lincoln Laboratory was created in 1951 at the Massachusetts Institute of Technology (MIT) as part of an effort to improve the U.S. air defense syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nutley, New Jersey
Nutley is a township in Essex County, New Jersey, United States. As of the 2020 United States census, the township's population was 30,143. What is now Nutley was originally incorporated as Franklin Township by an act of the New Jersey Legislature on February 18, 1874, from portions of Belleville Township. Nutley was incorporated as a town on March 5, 1902, replacing Franklin Township.Snyder, John P''The Story of New Jersey's Civil Boundaries: 1606–1968'' Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 130 for Nutley, p. 128 for Franklin Township. Accessed June 1, 2012. In 1981, the town was one of seven Essex County municipalities to pass a referendum to become a township, joining four municipalities that had already made the change, of what would ultimately be more than a dozen Essex County municipalities to reclassify themselves as townships in order take advantage of federal revenue sharing policies that allocated townships a greater share of government ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
