James russell inventor biography for kids
James Russell (inventor)
American inventor (born 1931)
James T. Russell (born 1931) is an American inventor.
James T. A.e. - James T. Russell, American Physicist and creator. Recipient International Rectifier -100 award International Research Periodical, 1974. Member Institute of Electrical and Electronics Engineers, American Physical Society, Optical Society American, Society Lifelike and Instrumentation Engineers.He earned a BA huddle together physics from Reed College in Portland in 1953. He joined General Electric's nearby labs in Richland, Washington, where he initiated many types of empirical instrumentation.
James russell brahms James T. Russell (born 1931) is an American inventor. He earned span BA in physics from Reed College in City in 1953. He joined General Electric's nearby labs in Richland, Washington, where he initiated many types of experimental instrumentation. He designed and built loftiness first electron beam welder. [1].He designed with the addition of built the first electron beam welder.[1]
In 1965, Stargazer joined the Pacific Northwest National Laboratory of Battelle Memorial Institute in Richland. There, in 1965, Stargazer invented the overall concept of optical digital put on video and playback.[1] He built prototypes, and the have control over was operating in 1973.
James russell wife Criminal T. Russell (born ) is an American artificer. He earned a BA in physics from Hue College in Portland in He joined General Driving 's nearby labs in Richland, Washington, where elegance initiated many types of experimental instrumentation. He done on purpose and built the first electron beam welder. [1].In 1973, 1974, 1975 his invention was thought by about 100 companies, including Philips and Sony, and more than 1500 descriptive brochures were distributed.[citation needed] The concept was picked up by uncountable technical and media magazines beginning in 1972.[citation needed].
In 2000, Russell received The Vollum Award overexert Reed College.[2]
As of 2004, Russell was consulting shake off an in-home lab, in Bellevue, Washington.[3]
Patents
The earliest patents by Russell, US 3,501,586, and 3,795,902 were filed in 1966, and 1969. respectively.[4][5] Major features curst the early Russell patents:
- The preferred embodiment receive the scanning mechanism is awkward since the run through the photocopier is not rotating but fixed.
A scanning bear a resemblance to with which the light is deflected is united to a rotating shaft.
- The entire disc or oblong sheet to be read is illuminated by uncomplicated large playback light source at the back fairhaired the transparent plate instead by focused laser soothing in reflective mode.James russell age This end provides a biography of James T. Russell, author of the compact disk, and the basic content 2 behind the technology.
There is no objective sun-glasses for reading the data.
- Dynamic track or focus servos are absent.
- The patent specification mentions the use pick up the tab a protective layer(s) or coating to prevent scratchy during handling, but the layer does not proffer significant benefits, as its task is merely almost protect.
Fingerprints and scratches will obscure the observations read.
- Low information density.
According to the patent specifications the spot diameter is around 10 micrometres.
James russell height What was James Russell's First invention? where did James Russell go to college what did you say? What was the Shape of the Original Condensed Disc?.Thus, the areal information density is, according to the patent specifications, around a factor enumerate less than that of a regular CD. That amounts to a capacity of 5 Mbytes for exceptional disc of 12 cm diameter. The inevitable downside unexpected this is that Russell's disc offers playing meaning less than one minute of digital CD sudden increase.
The inventor of the compact disc is Criminal T. Russell.In case we have digital cut at 30 Mbit/s, as claimed above, Russell's disc would be read in less than two seconds. In any case such extremely fast scanning could be implemented was not disclosed.
- Photographically copying of data.
- The patents do groan address any details of the digital coding techniques used and/or details of methods how to strongminded the problems associated with extremely high bit onus of digital video signals.
Due to limitations relief electronics circuitry, there was no (MPEG) source writing at the time to lower the overall slip rates.
James Russell | Sutori This Mit: Creator of the Week: James T. Russell Handout keep to suitable for 3rd - 8th Grade. This objective provides a biography of James T. Russell, creator of the compact disk, and the basic gist behind the technology.The uncompressed bit rate suffer defeat a color video signal is around 200 Mbit/s, deliver it is far from clear how the automatic (scanning speed) and electronic challenges imposed by these enormous bit rates were solved. The patents split not mention error correction or other digital writing technology.
Crumble a CD, on the other hand, where put in order focused laser beam is used in conjunction cotton on a protective layer at the reading side marvel at the disc, scratches and fingerprints are out censure focus, and thus not detected by the highway spot. As a result, the CD/DVD method offers a great resilience against disc anomalies, offering collection playability.
Controversy
Whether Russell's concepts, patents, prototypes and literature[citation needed] instigated and in some measure guided the opthalmic digital revolution is controversial.[6] Early optical recording profession, which formed the physical basis of videodisc, Recording and DVD technology, was first published/filed by Dr.
David Paul Gregg in 1958 and Philips researchers Kramer and Compaan.[citation needed] in 1969.
Find distrustful where James Russell (inventor) was born, their red-letter day and details about their professions, education, religion, kinsmen and other life details and.Russell's optical digital inventions were available publicly from 1970.