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Author Topic: A-Z of AVIONICS  (Read 448574 times)

Offline neilep

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Re: A-Z of AVIONICS
« Reply #425 on: 05/02/2007 21:58:02 »
Jacob Rabinow


Jacob Rabinow (1910 - 1999) was an engineer who led a truly prolific career as an inventor. He earned a total of 230 U.S. patents on a variety of mechanical, optical and electrical devices.

Rabinow was born in Kharkov, Ukraine, in 1910. In 1919, his family moved to China, then in 1921 to the United States. He graduated from the City College of New York with a Bachelor's Degree in Engineering in 1933, and a Master's Degree in Electrical Engineering in 1934. His career as an inventor began when he was hired as a mechanical engineer in 1938 by the National Bureau of Standards (now the National Institute of Standards and Technology, or NIST). He made many developments there, mainly in defense systems, and eventually became Chief of the Electro-Mechanical Ordnance Division at NBS before leaving in 1954 to form his own company.

During this time, Rabinow invented and patented a number of revolutionary devices. Among them are the first disc-shaped magnetic storage media for computers (1954), the magnetic particle clutch (1956), the first straight-line phonograph (1959), the first self-regulating clock (1960) and his famous "reading machine" (1960) which was the first to use the "best match" principle and was the basis for the reading, sorting and processing machines used today by banks and post offices.

In 1964, Rabinow's company joined Control Data Corporation (CDC), and until 1972 he was Vice President of CDC and head of the Rabinow Advanced Development Laboratory. In 1968 Rabinow formed the RABCO company to manufacture straight-line phonographs, and the company was later bought out by Harman-Kardon Corporation. In 1972 he returned to NBS where he was Chief Research Engineer until his retirement in 1989.

In addition to his patents, Jacob Rabinow was awarded many other merits for his scientific achievements. Among them are the President's Certificate of Merit (1948), the Industrial R&D Scientist of the Year Award (1960), the IEEE's Harry Diamond Award (1977), and the Lemelson-MIT Lifetime Achievement Award (1998). He published his book, Inventing for Fun and Profit, in 1989. He also delivered many speeches and lectures on inventions and technology, as a guest at many educational institutions and on several television and radio shows.

Rabinow was inducted into the National Inventors Hall of Fame in 2005.
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #426 on: 05/02/2007 22:23:25 »
Stenosis

A stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure. It is also sometimes called a "stricture" (as in urethral stricture).

Stenoses of the vascular type are often associated with a noise (bruit) resulting from turbulent flow over the narrowed blood vessel. This bruit can be made audible by a stethoscope. Other, more reliable methods of diagnosing a stenosis are imaging methods including ultrasound, Magnetic Resonance Imaging/Magnetic Resonance Angiography, Computed Tomography/CT-Angiography which display anatomic imaging (i.e. the visible narrowing of a vessel) and/or flow phenomena (signs of the movement of the bodily fluid through the bodily structure).
« Last Edit: 06/02/2007 03:12:09 by neilep »
 

Offline iko

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« Last Edit: 15/05/2007 22:03:38 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #428 on: 06/02/2007 03:09:06 »
Umbrella


An umbrella is a collapsible canopy that protects a person from rain or sun. They can be made by stretching a fabric or other material over a wire frame and have a handle for carrying or securing in a base. The person is kept dry by the fabric which is usually waterproof and water rolls off the sides.

An umbrella made for protection from the sun is called a parasol. These are often meant to be fixed to one point and often used with patio tables or other outdoor furniture, or on the beach for shelter from the sun. However parasols can also be hand held devices.

The word umbrella is from the Latin word umbra for shade or shadow. Brolly is a slang word for umbrella, used often in Britain and Australia.



« Last Edit: 06/02/2007 03:11:18 by neilep »
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #429 on: 06/02/2007 04:44:47 »
Velocity= The rate of change of position with time, both in terms of speed and direction.

Thank you Neil,I was slipping..
 

Offline iko

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« Last Edit: 15/05/2007 22:03:10 by iko »
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #431 on: 06/02/2007 11:21:49 »
xenograft =  A graft of skin, bone,etc,from an individual of another species.
 

Offline iko

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Re: A-Z of AVIONICS
« Reply #432 on: 06/02/2007 11:53:46 »
Yam Modem

http://www.nordlink.org/yam/y110bcss.jpg


Welcome to the YAM modem WWW server.
This site provides information about the YAM modem for packet radio.
 Born in the Summer 1997 as a 9600 bps G3RUH compatible modem, the YAM is a multi-standard modem capable of AFSK 1200 bps and Manchester-FSK 2400 bps operations.
The YAM modem integrates all the functions of a packet radio modem and parts of those of implemented in a TNC using only three integrated circuits and interfaces directly to a PC serial port from which it is also powered.
The YAM introduces a substantial new in the arena of packet radio modems and is based on a FPGA (Xilinx's Xc5202) which includes a large amount of logice resources allowing a reduced components count and a more compact form factor.

from:   http://www.nordlink.org/yam/yam-e.htm

« Last Edit: 15/05/2007 22:02:46 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #433 on: 06/02/2007 16:43:09 »
Frank Zamboni


Frank Joseph Zamboni, Jr. (January 16, 1901 – July 27, 1988) was a U.S. inventor whose most famous invention was the Zamboni machine for resurfacing ice rinks.

He was born in Eureka, Utah to Italian immigrants. His parents soon bought a farm near Pocatello, Idaho, where he grew up. In 1920, he moved with his parents to the harbor district of Los Angeles, where his older brother George was operating an auto repair business. After attending a trade school in Chicago, he and his younger brother Lawrence opened an electrical supply business in 1922 in the Los Angeles suburb of Hynes (now part of Paramount). The following year, he married, and eventually had three children. In 1927, he and Lawrence added an ice-making plant and entered the block ice business. They sold their block ice business in 1939, seeing little future in that business with the recent advent of electrically operated refrigeration units. However, they kept their refrigeration equipment because they planned to open an ice rink nearby.

In 1940, the brothers, along with a cousin, opened the Iceland rink, which proved very popular, in no small part because Frank had devised a way to eliminate rippling caused by the pipes that were laid down to keep the rink frozen. (The rink still operates, and is still owned by the Zamboni family.) He obtained a patent for that innovation in 1946. Then, in 1948, he invented a machine that transformed the job of resurfacing an ice rink from a three-man, 90-minute task to a one-man, 10-minute job. In 1949, he applied for a patent, and set up Frank J. Zamboni & Co. in Paramount to build and sell the machines. He obtained his patent in 1953. Demand for the machine proved great enough that his company added a second plant in Brantford, Ontario and a branch office in Switzerland. Though the term Zamboni was (and remains) trademarked by his company, the name is now commonly used for any brand of ice resurfacing machine.

In the 1970s, he invented machines to remove water from outdoor artificial turf surfaces, remove paint stripes from the same surfaces, and roll up and lay down artificial turf in domed stadiums. His final invention, in 1983, was an automatic edger to remove ice buildup from the edges of rinks.

He died of lung cancer in 1988, about two months after his wife's death. The Zamboni company, which has sold over 7000 of its signature machines in its history, is still owned and operated by the Zamboni family, currently by Frank's son and grandson.
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #434 on: 06/02/2007 17:21:17 »
 ALEXANDER GRAHAM BELL

First British long distance calls (1878) : a royal introduction
Alexander Graham Bell demonstrated his telephone to Queen Victoria on January 14, 1878, at Osborne House on the Isle of Wight. During the demonstration Bell made calls to London, Cowes and Southampton. These were the first publicly witnessed long-distance calls in the UK.
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #435 on: 06/02/2007 22:03:46 »
Barcode





What is bar code? It is method of automatic identification and data collection. The first patent for a bar code type product (US Patent #2,612,994) was issued to inventors Joseph Woodland and Bernard Silver on October 7, 1952. The Woodland and Silver bar code can be described as a "bull's eye" symbol, made up of a series of concentric circles.

Examine the 1958 patent drawing to the left that depicts the Woodland's and Silver's bar code label and the 1958 patent drawing below right of the inventors' bar code scanner technology. The photo below left is an example of today's U.P.C. bar code on a product package.

In 1948, Bernard Silver was a graduate student at Drexel Institute of Technology in Philadelphia. A local food chain store owner had made an inquiry to the Drexel Institute asking about research into a method of automatically reading  product information during checkout. Bernard Silver joined together with fellow graduate student Norman Joseph Woodland to work on a solution.

Woodland's first idea was to use ultraviolet light sensitive ink. The team built a working prototype but decided that the system was too unstable and expensive. They went back to the drawing board.

On October 20, 1949, Woodland and Silver filed their patent application for the "Classifying Apparatus and Method", describing their invention as "article classification...through the medium of identifying patterns".

Bar code was first used commercially in 1966, however, it was soon realized that there would have to be some sort of industry standard set. By 1970, the Universal Grocery Products Identification Code or UGPIC was written by a company called Logicon Inc. The first company to produce bar code equipment for retail trade use (using UGPIC) was the American company Monarch Marking in 1970, and for industrial use, the British company Plessey Telecommunications was also first in 1970. UGPIC evolved into the U.P.C. symbol set  or Universal Product Code, which is still used in the United States. George J. Laurer is considered the inventor of U.P.C. or Uniform Product Code, which was invented in 1973.

In June of 1974, the first U.P.C. scanner was installed at a Marsh's supermarket in Troy, Ohio. The first product to have a bar code included was a packet of Wrigley's Gum
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #436 on: 06/02/2007 22:16:26 »
Crystal
Methamphetamine
Fast Facts: http://www.meth-addiction.com/meth-addiction-information.html


Crystal methamphetamine is a colorless, odorless form of d-methamphetamine, a powerful and highly addictive synthetic (man-made) stimulant. Crystal methamphetamine typically resembles small fragments of glass or shiny blue-white "rocks" of various sizes. Like powdered methamphetamine (another form of d-methamphetamine), crystal methamphetamine is abused because of the long-lasting euphoric effects it produces. Crystal methamphetamine, however, typically has a higher purity level and may produce even longer-lasting and more intense physiological effects than the powdered form of the drug.

 

Offline iko

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Re: A-Z of AVIONICS
« Reply #437 on: 06/02/2007 23:33:12 »
Dermatoglyphics   (Fingerprints)

« Last Edit: 15/05/2007 22:02:13 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #438 on: 07/02/2007 00:35:25 »
Epstein-Barr virus


The Epstein-Barr virus (EBV), also called Human herpesvirus 4 (HHV-4), is a virus of the herpes family (which includes Herpes simplex virus and Cytomegalovirus), and is one of the most common viruses in humans. Most people become infected with EBV, which is often asymptomatic but commonly causes infectious mononucleosis. It is named after Michael Epstein and Yvonne Barr, who together with Bert Achong discovered the virus in 1964.[1]



Image:Leukemia cells that contain Epstein Barrvirus using a FA staining technique PHIL 2984 lores.jpg
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #439 on: 07/02/2007 01:30:10 »
Fossil
 

Offline Zwitterion

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Re: A-Z of AVIONICS
« Reply #440 on: 07/02/2007 02:49:56 »
G is for GRAVITY - cant be bothered explaining it but then who doesnt know what it is!!
 

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Re: A-Z of AVIONICS
« Reply #441 on: 07/02/2007 03:25:05 »
Hydrogen Peroxide
 

Offline iko

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Re: A-Z of AVIONICS
« Reply #442 on: 07/02/2007 21:10:34 »
« Last Edit: 15/05/2007 22:01:43 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #443 on: 07/02/2007 21:35:25 »
Jet engine
From Wikipedia, the free encyclopedia


A jet engine is an engine that discharges a fast moving jet of fluid to generate thrust in accordance with Newton's third law of motion. This broad definition of jet engines includes turbojets, turbofans, rockets and ramjets and water jets, but in common usage, the term generally refers to a gas turbine Brayton cycle engine used to produce a jet of high speed exhaust gases for special propulsive purposes. Jet engines are so familiar to the modern world that gas turbines are sometimes mistakenly referred to as a particular application of a jet engine, rather than the other way around.


A Pratt & Whitney F100 turbofan engine for the F-15 Eagle is tested at Robins
Air Force Base, Georgia, USA. The tunnel behind the engine muffles noise and
allows exhaust to escape. The mesh cover at the front of the engine (left of photo)
prevents foreign objects (including people) from being pulled into the engine by the
 huge volume of air rushing into the inlet.
 

Offline iko

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Re: A-Z of AVIONICS
« Reply #444 on: 07/02/2007 22:47:09 »
Karman Theodore von


Theodore von Kármán (1881–1963).



Professor of Aeronautics 1930–1949. First Director of GALCIT, 1930–1949. In 1926 von Kármán was invited to Caltech to give talks on aerodynamics, and review plans for the new wind tunnel. In 1928 he returned to Caltech for an exchange semester, and finally joined the Institute in 1929 as a research associate in aeronautics. In 1930, he was appointed professor of aeronautics and Director of GALCIT. Among his accomplishments were the first computation of drag for a supersonic projectile; application of dimensional analysis to turbulent flow, the log-law and Kármán constant for turbulent boundary layer velocity distribution (law of the wall); fundamental studies on turbulence; the discovery of the similarity law of transonic flow; and the use of stiffened panels in aircraft construction.
He spent most of his time in Washington after 1942. Stepped down as director in 1949 and became professor emeritus. In 1962, at age 81, he was awarded the first National Medal of Science, bestowed in a Whitehouse ceremony by President John F. Kennedy. On his characteristic of never declining a lecturing opportunity, he once joked "I can never pass up the opportunity to dominate the conversation for an entire hour."

from:   http://www.galcit.caltech.edu/history/index.html 




« Last Edit: 15/05/2007 22:01:09 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #445 on: 07/02/2007 23:18:11 »
The laserdisc (LD) was the first commercial optical disc storage medium, and is used primarily for the presentation of movies.

During its development, the format was referred to as the "Reflective Optical Videodisc System" before MCA, who owned the patent on the technology, renamed the format Disco-Vision in 1969. By the time the format was brought to market in 1978, the hyphen had been removed from the format name, and DiscoVision became the official name. Sales of DiscoVision players & discs began on December 15, 1978 starting in Atlanta, Georgia. MCA owned the rights to the largest catalog of films in the world during this time, and they directly manufactured and distributed the discs of their movies under the "MCA DiscoVision" label. Pioneer Electronics, who entered the market in 1978 at almost exactly the time DiscoVision titles were going on sale, began manufacturing players and printing discs under the name Laser Videodisc. By 1981, Laserdisc (first in CamelCase as LaserDisc, later without the intercap) had become the common name for the format, and the DiscoVision label disappeared, becoming simply MCA or (later) MCA-Universal Laserdisc.

MCA also manufactured discs for other companies, including Paramount, Disney and Warner Brothers. Some of them added their own names onto the disc jacket in order to signify the movie was not owned by MCA. When MCA folded into Universal several years later, Universal began re-issuing many of the early DiscoVision titles as Universal discs. The DiscoVision versions had largely been available only in pan and scan and had often utilized poor transfers. The format has also been known as LV (for LaserVision, actually a player brand by Philips). The players are also sometimes referred to as VDPs (Video Disc Players).








I've got a few laser discs...me wonders if they are worth anything.
 

Offline iko

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« Last Edit: 15/05/2007 22:00:38 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #447 on: 08/02/2007 16:38:51 »
Isaac Newton





Sir Isaac Newton, (4 January 1643 – 31 March 1727) [ OS: 25 December 1642 – 20 March 1727][1] was an English physicist, mathematician, astronomer, natural philosopher, and alchemist, regarded by many as the greatest figure in the history of science.[2] His treatise Philosophiae Naturalis Principia Mathematica, published in 1687, described universal gravitation and the three laws of motion, laying the groundwork for classical mechanics. By deriving Kepler's laws of planetary motion from this system, he was the first to show that the motion of objects on Earth and of celestial bodies are governed by the same set of natural laws. The unifying and predictive power of his laws was central to the scientific revolution, the advancement of heliocentrism, and the broader acceptance of the notion that rational investigation can reveal the inner workings of nature.

In mechanics, Newton also markedly enunciated the principles of conservation of momentum and angular momentum. In optics, he invented the reflecting telescope and developed a theory of colour based on the observation that a prism decomposes white light into a visible spectrum. Newton notably argued that light is composed of particles. He also formulated an empirical law of cooling, studied the speed of sound, and proposed a theory of the origin of stars. In mathematics, Newton shares the credit with Gottfried Leibniz for the development of calculus. He also demonstrated the generalized binomial theorem, developed the so-called "Newton's method" for approximating the zeroes of a function, and contributed to the study of power series.

French mathematician Joseph-Louis Lagrange often said that Newton was the greatest genius who ever lived, and once added that he was also "the most fortunate, for we cannot find more than once a system of the world to establish."[3] English poet Alexander Pope was moved by Newton's accomplishments to write the famous epitaph:
 

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Re: A-Z of AVIONICS
« Reply #448 on: 08/02/2007 16:55:05 »
orbit = Path followed by any celestial object moving under the control of another objects gravity.
 

Offline iko

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Re: A-Z of AVIONICS
« Reply #449 on: 08/02/2007 19:02:17 »
« Last Edit: 15/05/2007 21:59:57 by iko »
 

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Re: A-Z of AVIONICS
« Reply #449 on: 08/02/2007 19:02:17 »

 

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