X-Nico

unusual facts about Magnetic-core memory


Magnetic-core memory

In many occasions, errors could be resolved by gently tapping the printed circuit board with the core array on a table.


3590

IBM 3590, a series of tape drives and corresponding magnetic tape data storage media formats developed by IBM

Albert Salter

He is historically most notable for having discovered magnetic abnormalities at what is now Creighton Mine in Greater Sudbury, while surveying a baseline westward from Lake Nipissing in 1856.

Anjana Ahuja

Ahuja, who was educated at a comprehensive school in Essex, read physics at Imperial College London, followed by a postgraduate course in space physics during which she worked on data about the Sun's magnetic field from the Ulysses probe.

Are You Magnetic?

"Are You Magnetic?" is the second single from Faker's second studio album Be the Twilight, although not achieving the major success as "This Heart Attack", it was very favored on channels and TV shows such as Channel V Hit Rater, MTV My Pix, and Network Ten Video Hits.

Canada 2014

Canada 2014 is the name of a concert tour by the Buffalo-based rock band Goo Goo Dolls, in support of their album Magnetic.

Centre for Magnetic Resonance Investigations

The Kingston Upon Hull Centre for Magnetic Resonance Investigations (CMRI), which opened in 1992, is a magnetic resonance imaging centre located in the city of Kingston upon Hull (Hull) in the East Riding of Yorkshire, England, UK.

Channel Dash

Gneisenau hit one mine off Terschelling, but suffered little damage; the magnetic mine exploded some metres off the ship, making a small hole on the starboard side and temporarily knocking one of her turbines out of action.

Children's Museum of Winston-Salem

Build It An exhibit which features foam Lincoln Logs, Magnetic tiles, Lego, and a build your own parachuter, which involves making a parachuter (by attaching a parachute to a wooden man) and using a pulley to pull it up and when it reaches the top it will fall off and float down.

Composite fermion

More accurately, the vortices bound to electrons produce their own geometric phases which partly cancel the Aharonov–Bohm phase due to the external magnetic field to generate a net geometric phase that can be modeled as an Aharonov–Bohm phase in an effective magnetic field B^*.

Cornubian batholith

From gravity and magnetic geophysical data, the batholith is interpreted to extend from about 8°W, more than 100 km southwest of the Isles of Scilly, to the eastern edge of Dartmoor.

Daresbury Laboratory

Arthur Dooley The Laboratory has a piece 'Splitting of the Atom', unveiled in 1971 constructed from magnetic steel and two 37 inch pole tips taken from the first cyclotron to operate outside the USA.

Department of Chemical Engineering and Biotechnology, University of Cambridge

The Magnetic Resonance Research Centre has been situated at the West Cambridge site since it was built in 1997 and houses four Bruker NMR spectrometers in addition to lower field equipment such as Earth's field NMR equipment.

Dieter Matthaei

Matthaei D, Frahm J, Haase A, Schuster R, Bomsdorf H. Chemical-shift-selective magnetic-resonance imaging of avascular necrosis of the femoral head.

Drifting ice station

Magnetic, ionosphere, ice and other observations are also carried out there.

Electrodynamic suspension

The magnetic field in the train is produced by either superconducting magnets (as in SCMaglev) or by an array of permanent magnets (as in Inductrack).

Everspin Technologies

Headquartered in Chandler, Arizona, Everspin owns and operates a manufacturing line for its proprietary magnetic back-end-of-line wafer processing, and leverages standard CMOS wafers from foundries.

Fleming's left-hand rule for motors

Michael Faraday introduced a visual analogy for this, in the form of imaginary magnetic lines of force: those in the conductor form concentric circles round the conductor; those in the externally applied magnetic field run in parallel lines.

Flux linkage

Flux linkage is commonly used to estimate the magnetic flux of an AC machine.

GPS for the visually impaired

Lodestone is the name of a natural magnetic iron that was used throughout history in the manufacturing of compasses.

IBM Research

IBM Research was behind the inventions of the SABRE travel reservation system, the technology of laser eye surgery, magnetic storage, the relational database, UPC barcodes and Watson, the question-answering computing system that won a match against human champions on the Jeopardy! television quiz show.

John R. Wiegand

John Richard Wiegand discovered the Wiegand effect, a physical phenomenon in which a special wire, called a "Wiegand wire", can detect small magnetic fields.

Joseph Ennemoser

In 1819 he became professor of medicine in Bonn, leaving in 1837 for Innsbruck and then in 1841 settling in Munich, where he earned a great reputation as a "magnetic physician."

Kirsty McCabe

McCabe studied Geophysics at the University of Edinburgh, graduating with a first class honours degree before going on to spend three months as an intern at NASA's Goddard Space Flight Center in Maryland, where she used satellite magnetic data to interpret the underlying crustal structure of parts of Australasia.

Kurchatov Center for Synchrotron Radiation and Nanotechnology

The magnetic structure is very similar to that of the ANKA symchrotron in Karlsruhe.

Lepton

It determines the strength of the electric field generated by the particle (see Coulomb's law) and how strongly the particle reacts to an external electric or magnetic field (see Lorentz force).

Magnetic core

When the core is subjected to a changing magnetic field, as it is in devices that use AC current such as transformers, inductors, and AC motors and alternators, some of the power that would ideally be transferred through the device is lost in the core, dissipated as heat and sometimes noise.

Magnetic declination

In the northern hemisphere, if you can see Polaris (the North Star) the declination can be determined as the difference between the magnetic bearing and a visual bearing on the polestar.

Magnetic Drum Digital Differential Analyzer

The Magnetic Drum Digital Differential Analyzer (MADDIDA) was a computer built by Northrop Aircraft Corporation in 1950.

Magnetic tweezers

Most commonly magnetic tweezers are used to study mechanical properties of biological macromolecules like DNA or proteins in single-molecule experiments.

Magnetophon

American audio engineer Jack Mullin acquired two Magnetophon recorders and fifty reels of magnetic tape from a German radio station at Bad Nauheim near Frankfurt in 1945.

Mario Acuña

Acuña was a principal investigator on magnetometer experiments flown on numerous missions over the years, from the Pioneer 11 Fluxgate Magnetometer Experiment in 1973 to the Mars Global Surveyor Magnetic Field Experiment in 1994, and the MESSENGER magnetometer.

Mount Humphrey Lloyd

He named this feature for the Rev. Dr. Humphrey Lloyd of Trinity College, Dublin, an active member of the British Association which promoted interest in magnetic and meteorological research in the Antarctic.

Paleomagnetism

Motonori Matuyama showed that the Earth's magnetic field reversed in the mid-Quaternary, a reversal now known as the Brunhes-Matuyama reversal.

Peter Ernst von Lasaulx

Although the Würzburg government tried to keep him there, Lasaulx left in 1844 to become Professor of Philology and Aesthetics at the University of Munich, where he became known for his magnetic style.

Rafal E. Dunin-Borkowski

R E Dunin-Borkowski, M R McCartney, R B Frankel, D A Bazylinski, M Posfai and P R Buseck, Magnetic microstructure of magnetotactic bacteria by electron holography, Science 282 (1998), 1868–1870.

Robert Cornog

During World War II, Cornog designed magnetic equipment for ships and went to work on the Manhattan Project, successively at UC Berkeley, Princeton University and in Los Alamos, New Mexico.

RuBee

RuBee utilizes Long Wave (LW) magnetic signals to send and receive short (128 byte) data packets in a local regional network.

Saskatchewan Accelerator Laboratory

Part of the ancillary equipment included a magnetic spectrometer mounted on a rotating platform, modified from a naval gunmount supplied by the US Office of Naval Research.

Sensors for Arc Welding

Inductive sensors evaluate the attenuation of a high-frequency electro-magnetic field which has been generated by eddy currents in the work piece.

Silicon photomultiplier

# The signal parameters are practically independent of external magnetic fields, in contrary to vacuum PMTs

Split ring

Split-ring resonator is a unit which enhances magnetic permeability and magnetic coupling for metmaterials.

Steve Brudniak

His art incorporates, often pioneering, unconventional media and scientific elements such as high voltage electricity, Tesla coil technology, magnetic ferrofluid, gyro mechanics, biological preservations, fiber optics, and lasers.

Stonyhurst Observatory

In 1858, the observatory was chosen as one of the main observing stations by General Sir Edward Sabine, when he was conducting a magnetic survey of England.

Sudbury Basin

In 1856 while surveying a baseline westward from Lake Nipissing, provincial land surveyor Albert Salter located magnetic abnormalities in the area that were strongly suggestive of mineral deposits.

Telecommunications in Canada

While the first telegraph company was the Toronto, Hamilton and Niagara Electro-Magnetic Telegraph Company, founded in 1846, it was the Montreal Telegraph Company, controlled by Hugh Allan and founded a year later, that dominated in Canada during the technology's early years.

That Darn Katz!

The space cats' home planet, Thuban 9, began to lose its rotation, and they discovered that only Earth had the correct orientation and magnetic field with which to harness its rotational energy.

The Magnetic Telescope

The story begins with Clark Kent and Lois Lane, along with the entire town, observing a scientist's (who resembles Captain Marvel's archnemesis Doctor Sivana) demonstration of his magnetic telescope.

TMA-1

TMA-1 (Tycho Magnetic Anomaly - 1), the Monolith (Space Odyssey) found in the moon's Tycho crater in the book and film 2001: A Space Odyssey

Toronto Magnetic and Meteorological Observatory

Sir John Henry Lefroy, a pioneer in the study of terrestrial magnetism served as director of the magnetic observatory from 1842 to 1853; In 1960, the Ontario Heritage Foundation, Ministry of Citizenship and Culture erected a Provincial Military Plaque in his honour on the University of Toronto campus.

Virgil Griffith

It was at Interz0ne 1 in 2002 that he met Billy Hoffman, a Georgia Tech student, who had discovered a security flaw in the campus magnetic ID card system called "BuzzCard".


see also

Drum memory

As late as 1980, PDP-11/45 machines that used drums for swapping (and magnetic core memory) were still in use at many of the original UNIX sites.