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Bernard Silver
Bernard Silver (September 21, 1924 – August 28, 1963) was an early developer of barcode technology alongside Norman Joseph Woodland. Silver earned his Bachelor of Science in Electrical Engineering from the Drexel Institute of Technology in 1947. In 1948 Silver paired with Norman Joseph Woodland to come up with an automated way to read product data after overhearing the conversation of a local grocery store president. Their initial results, a system of lines and circles based on Morse code, was replaced with a bulls eye pattern so it could be scanned from any direction. Silver and Woodland filed a patent for their system on October 20, 1949. was granted on October 7, 1952. "The two men eventually sold their patent to Philco for $15,000 — all they ever made from their invention." During his career Silver served as a physics instructor at Drexel and as vice-president of Electro Nite Inc. He died August 28, 1963 of bronchopneumonia due to acute myelogenous leukemia at the age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania
Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the List of U.S. states and territories by population, fifth-most populous state in the nation with over 13 million residents 2020 United States census, as of 2020. It is the List of U.S. states and territories by area, 33rd-largest state by area and ranks List of states and territories of the United States by population density, ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's List of cities in Pennsylvania, largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five major unincorporated territories, nine United States Minor Outlying Islands, Minor Outlying Islands, and 326 Indian reservations. The United States is also in Compact of Free Association, free association with three Oceania, Pacific Island Sovereign state, sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Palau, Republic of Palau. It is the world's List of countries and dependencies by area, third-largest country by both land and total area. It shares land borders Canada–United States border, with Canada to its north and Mexico–United States border, with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trevose
Trevose, also known as the TVO(tee,vee,oh) is a census-designated place within Lower Southampton Township, Pennsylvania. Trevose is located within both Bensalem and Lower Southampton townships in Bucks County, Pennsylvania, which is north of and borders northeastern Philadelphia. Trevose was formerly part of Feasterville-Trevose, but was split into two separate CDPs for the 2010 census. U.S. 1 runs through the town as well as the Pennsylvania Turnpike, but Trevose's main road is Brownsville Road, which is the dividing line between the two townships. As of the 2010 census, Trevose had a population of 3,550. The community is named after the home of settler Joseph Growden and itself after Growden's homestead in England (Growden was Cornish; Trevose is from the Cornish word Trenfos for farm.). Demographics As of the 2010 U.S. census the population of Trevose was 93.6% White, 1.9% African-American, 2.4% Asian, .2% American Indian or Alaska Native, .1% Native Hawaiian an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barcode
A barcode or bar code is a method of representing data in a visual, Machine-readable data, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which there are several types. Later, two-dimensional (2D) variants were developed, using rectangles, dots, hexagons and other patterns, called ''matrix codes'' or ''2D barcodes'', although they do not use bars as such. 2D barcodes can be read using purpose-built 2D optical scanners, which exist in a few different forms. 2D barcodes can also be read by a digital camera connected to a microcomputer running software that takes a photographic image of the barcode and analyzes the image to deconstruct and decode the 2D barcode. A mobile device with an inbuilt camera, such as smartphone, can function as the latter type of 2D barcode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drexel University
Drexel University is a private research university with its main campus in Philadelphia, Pennsylvania. Drexel's undergraduate school was founded in 1891 by Anthony J. Drexel, a financier and philanthropist. Founded as Drexel Institute of Art, Science and Industry, it was renamed Drexel Institute of Technology in 1936, before assuming its current name in 1970. , more than 24,000 students were enrolled in over 70 undergraduate programs and more than 100 master's, doctoral, and professional programs at the university. Drexel's cooperative education program (co-op) is a prominent aspect of the school's degree programs, offering students the opportunity to gain up to 18 months of paid, full-time work experience in a field relevant to their undergraduate major or graduate degree program prior to graduation. History Drexel University was founded in 1891 as the Drexel Institute of Art, Science and Industry, by Philadelphia financier and philanthropist Anthony J. Drexel. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norman Joseph Woodland
Norman Joseph Woodland (September 6, 1921 – December 9, 2012) was an American inventor, best known as one of the inventors of the barcode, for which he received a patent in October 1952. Later, employed by IBM, he developed the format which became the ubiquitous Universal Product Code (UPC) of product labeling and check-out stands. Early life and career Woodland was born in Atlantic City, New Jersey, on September 6, 1921, the elder of two boys in his family. After graduating from Atlantic City High School, Woodland did military service in World War II as a technical assistant with the Manhattan Project in Oak Ridge, Tennessee. Woodland went on to earn his Bachelor of Science in Mechanical Engineering (BSME) from Drexel University (then called Drexel Institute of Technology) in 1947. Fom 1948 to 1949, he worked as a lecturer in mechanical engineering at Drexel. Developing the bar code In 1948, Bernard Silver, a fellow Drexel Institute graduate student with Woodland, overheard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the inventors of the telegraph. International Morse code encodes the 26 basic Latin letters through , one accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals ( prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration is the basic unit of time measurement in Morse code transmission. The duration of a ''dah'' is three times the duration of a ''dit''. Each ''dit'' or ''dah'' within an encoded character is followed by a period of signal absence, called a ''space'', equal to the ''dit'' duration. The letters of a word are separated by a space of duration equal to three ''dit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bullseye (target)
The bullseye or bull's eye has, since 1833, been the name for the center of a target and, by extension, since 1857, has been given to any throw, toss, or shot that hits the center. In a further development, success in an endeavor in which there is such inherent difficulty that most people are far more likely to choose, do, or identify something that is either unfortunately only close to or dismissively far from the ideal or necessary thing to choose can be called "hitting the bull's eye." The center of the target may have come to be called the bull's eye from the practice of English archers who, both to develop and to exhibit their skills, would attempt to shoot an arrow through the eye socket of a bull's skull. In some archery traditions the term "gold" is used in preference to "bullseye". In target archery, hitting the center ring of an international target is worth 10 points, or 9 points if it's an Imperial target. In Japanese archery, known as Kyūdō, the bullseye is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bronchopneumonia
Bronchopneumonia is a subtype of pneumonia. It is the acute inflammation of the bronchi, accompanied by inflamed patches in the nearby lobules of the lungs. citing: Webster's New World College Dictionary, Fifth Edition, Copyright 2014 It is often contrasted with lobar pneumonia; but, in clinical practice, the types are difficult to apply, as the patterns usually overlap. Topic Completed: 1 August 2011 Bronchopneumonia (lobular) often leads to lobar pneumonia as the infection progresses. The same organism may cause one type of pneumonia in one patient, and another in a different patient. Causes Bronchopneumonia is usually a bacterial pneumonia rather than being caused by viral disease. Medically reviewed by Gerhard Whitworth, RN, on April 19, 2019 It is more commonly a hospital-acquired pneumonia than a community-acquired pneumonia, in contrast to lobar pneumonia. Bronchopneumonia is less likely than lobar pneumonia to be associated with ''Streptococcus pneumoniae''. Rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acute Myeloid Leukemia
Acute myeloid leukemia (AML) is a cancer of the myeloid line of blood cells, characterized by the rapid growth of abnormal cells that build up in the bone marrow and blood and interfere with haematopoiesis, normal blood cell production. Symptoms may include Fatigue, feeling tired, shortness of breath, Bruise, easy bruising and bleeding, and increased risk of infection. Occasionally, spread may occur to the brain, skin, or gums. As an acute leukemia, AML progresses rapidly, and is typically fatal within weeks or months if left untreated. Risk factors include smoking, previous chemotherapy or radiation therapy, myelodysplastic syndrome, and exposure to the chemical benzene. The underlying mechanism involves replacement of normal bone marrow with leukemia cells, which results in a anemia, drop in red blood cells, thrombocytopenia, platelets, and normal leukopenia, white blood cells. Diagnosis is generally based on bone marrow aspiration and specific blood tests. AML has several s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancestry
An ancestor, also known as a forefather, fore-elder or a forebear, is a parent or ( recursively) the parent of an antecedent (i.e., a grandparent, great-grandparent, great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law, the person from whom an estate has been inherited." Two individuals have a genetic relationship if one is the ancestor of the other or if they share a common ancestor. In evolutionary theory, species which share an evolutionary ancestor are said to be of common descent. However, this concept of ancestry does not apply to some bacteria and other organisms capable of horizontal gene transfer. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female hypergamy. Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2''n'' ancestors in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Inventors Hall Of Fame
The National Inventors Hall of Fame (NIHF) is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a U.S. patent of significant technology. Besides the Hall of Fame, it also operates a museum in Alexandria, Virginia, sponsors educational programs, and a collegiate competition. As of 2020, 603 inventors have been inducted, mostly constituting historic persons from the past three centuries, but including about 100 living inductees. Nominees must hold a U.S. patent of significant contribution to the U.S. welfare, and which advances science and useful arts. The 2020 class included 22 inventors. History The National Inventors Hall of Fame was founded in 1973 on the initiative of H. Hume Mathews, then the chairman of the National Council of Patent Law Associations (now the National Council of Intellectual Property Law Associations). It was launched by Ed Sobey, who was also the first director. In 1974, it gained a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
