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Topic: Cathode

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In the News (Mon 21 Jan 19)

Vibrant colors, extradeep ribbing, and a big bold collar make Cathode an excellent way to jolt yourself out of the winter blues.
Add buttons or a cute pin at the neckline to wear the turtle closed for extra snuggles.
Cathode is knit in the round, from the top down, in one piece.
www.knitty.com /ISSUEwinter04/PATTcathode.html   (681 words)

  History: The cathode rays
He noticed that the cathode rays were emitted perpendicular with respect to the surface of the cathode on the contrary to the shafts which propagate in all directions.
When the A one is the cathode the spectroscope should record the light of the particles getting close (the Doppler shift should occur) When the B one is the cathode the spectroscope recorded light is caused bby the particles moving perpendicular with the respect to the spectroscope (there should be no Doppler shift).
The cathode rays emitted at the cathode are passing through a small slot in the anode and through a wire net (the net has connections with the anode, and it's task was to screen the rest of the tube from electrode influence - electric field was only between the anode and the cathode).
library.thinkquest.org /19662/low/eng/cathoderays.html   (2163 words)

 Cathode ray Summary
Cathode rays are beams of electrons that emanate from acathode and are most commonly produced by heating a filament in a vacuum tube or by bombarding a target with positive ions.
Cathode rays propagate in a straight line in the absence of external influences, but are deflected by electric or magnetic fields (which can be produced by placing high-voltage electrodes or magnets outside the vacuum tube - this explains the effect of magnets on a TV screen).
In addition to their use within cathode ray tubes, higher energy beams of relativistic electrons (generated by various types of electron beam accelerators) are used extensively within many industries to perform precision electron beam welding, rapid curing of thermosetting plastics, and cross-linking of thermoplastics to improve their physical properties.
www.bookrags.com /Cathode_ray   (1801 words)

 Ceramic cathode for ring lasers - Patent 4926437
a cathode mounted on said block and in communication with said gas, and said cathode is a monolithic body of a sintered powder of a ceramic material substantially composed of a material selected from the group consisting of boron carbide and boron nitride and mixtures thereof.
During the cathode manufacturing process, a layer of oxide is formed naturally by exposing a cleaned aluminum cathode emitting surface to an oxygen plasma with the aluminum cathode connected as the cathode in an electrical circuit.
The ceramic cathode in accordance with the present invention is produced by the use of powders which are tightly compressed into a mold to fill all of the voids.
www.freepatentsonline.com /4926437.html   (2014 words)

 Investigating Cathode Rays
At the end opposite to the cathode, was a cylinder that was closed at one end.
The closed cylinder collected the cathode rays and was connected to an electroscope, which was used to determine the charge on the cathode rays.
If we assumed that equal charges were present on the hydrogen ions and cathode ray particles, then the mass of the cathode ray particles was 1/1836 of the mass for the hydrogen ion.
schools.cbe.ab.ca /b858/dept/sci/teacher/zubot/Phys30notes/investnurays/investnurays.htm   (738 words)

 CATHODE - Online Information article about CATHODE
When the current is so much increased that the glow covers the whole of the cathode an increase in current must result in an increase of the current density over the cathode, and this is accomplished by a rapid increase in the.
distribution of the positive stream over the cathode is readiiy studied by covering the cathode with fused lithium chloride and observing the distribution of the red.glow.
This suggests that the sputtering of the cathode is caused by the impact against it of the positive stream.
encyclopedia.jrank.org /CAR_CAU/CATHODE.html   (1877 words)

 J. J. Thomson 1897
The deflexion of the cathode rays by the magnetic field was studied with the aid of the apparatus shown in fig.
The cathode was placed in a side-tube fastened on to a bell-jar; the opening between this tube and the bell-jar was closed by a metallic plug with a slit in it; this plug was connected with the earth and was used as the anode.
The cathode rays pass through this slit, and then strike against the two coaxial cylinders at the end of the tube; slits are cut in these cylinders, so that the cathode rays pass into the inside of the inner cylinder.
web.lemoyne.edu /~GIUNTA/thomson1897.html   (5496 words)

 Oxide cathode studies   (Site not responding. Last check: 2007-09-11)
In the current oxide cathode manufacturing process, a barium-strontium carbonate layer is either painted or sprayed on a nickel cathode base.
Furthermore, in order to activate the cathode, the nitrocellulose must be burned off and the carbonates converted to oxides, by heating the cathode and drawing a current in vacuum.
Cathode temperatures are measured using a laser-compensated pyrometer.
www.slac.stanford.edu /grp/kly/muri/murib.htm   (1858 words)

 Cold-Cathode Tube & Dekatron
By varying the voltage on a grid which is between the anode and the cathode, and is in the path of the electrons, the flow of the electrons (ie.
With all the cathodes at the same voltage a glow discharge from one of them to the anode will be transferred clockwise to its neighbouring cathode when a pulse is applied to all ten associated guide (transfer) electrodes.
By applying phased pulses to the guide electrodes the discharge is forced to jump from one cathode to the next, and in the process voltage pulses are produced in sequence at the cathodes, which in the early Anita calculators is used for strobing the keys on the keyboard.
www.vintagecalculators.com /html/cold-cathode_tube___dekatron.html   (1376 words)

 Designing Common-Cathode Amplifiers
The output signal of the common cathode amplifier is inverted with respect to the input signal.
This circuit is similar to the bypassed cathode configuration with the exception of the removal of the cathode bypass capacitor, Ck.
If the plate resistor, cathode resistor, and bypass capacitor values were different than the ones used in the example, the "center" point of the shelf would shift left or right, and the ratio between the top and bottom of the "shelf" would change.
www.aikenamps.com /CommonCathode.htm   (2704 words)

 Cathode ray tube Summary
The cathode rays were allowed to pass through a narrow aperture, effectively focusing them into a beam which appeared on the screen as a dot.
The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device that was traditionally used in most computer displays, video monitors, televisions, radar displays and oscilloscopes.
Cathode rays exist in the form of streams of high speed electrons emitted from the heating of cathode inside a vacuum tube at its rear end.
www.bookrags.com /Cathode_ray_tube   (4896 words)

 Mysterious Rays
But when the German physicist Heinrich Hertz passed the rays through an electric field created by metal plates inside a cathode ray tube, the rays were not deflected in the way that would be expected of electrically charged particles.
When Lenard passed cathode rays through a metal foil and measured how far they traveled through various gases, he concluded that if these were particles, they had to be very small.
Cathode rays are not only material particles, he suggested, but in fact the building blocks of the atom: they are the long-sought basic unit of all matter in the universe.
www.aip.org /history/electron/jjrays.htm   (451 words)

 FlowLighting Cold Cathode Kits
Cathodes are much brighter and less expensive than regular neon accent tubes.
The cathodes are made of glass with a protective acrylic tube around the glass.
The orange cream cathodes are not very orange, but more white with a hint of orange.
www.oznium.com /cathode-kit   (1114 words)

 cathode - Search Results - MSN Encarta
Electrode, component of an electric circuit that connects the conventional wiring of the circuit to a conducting medium such as an electrolyte or a...
electrodes, research on cathode discharges, electron beams, creation of, first use of term, pictures and illustrations
Cathode Ray, a high-speed electron emitted by the negative electrode of a vacuum tube when an electric current is passed through it.
encarta.msn.com /cathode.html   (140 words)

 Cathode Ray Tube   (Site not responding. Last check: 2007-09-11)
The negatively charged electrons are attracted to the positive pole of a magnet, and repelled by the negative pole of a magnet.
Tube The cathode ray tube is a sealed glass tube from which most of the air has been removed.
A thin piece of metal coated with a material that emits light when struck by electrons is sealed inside the tube to detect the path of the electrons.
dwb.unl.edu /Teacher/NSF/C03/C03Links/www.chem.uiuc.edu/demos/cathode.html   (178 words)

 Cathode Waste   (Site not responding. Last check: 2007-09-11)
When a pot has reached the end of its useful life, normally after about 6-7 years, it is rebuilt with a new carbon lining (the cathode).
At this time it is necessary to dispose of the old lining, which consists of old refractory bricks and carbon, normally containing material from the electrolytic bath, plus a small amount of cyanide.
The aluminium industry is currently researching other methods of cathode waste use — including extracting and recycling some of its useful components and using the waste material as a combustion source for power generation, or as raw materials in other industrial processes (eg, cement, steel).
www.world-aluminium.org /environment/challenges/cathode.html   (231 words)

 [No title]
The cathode ray tube creates an image by scanning a beam of electrons across a phosphor-coated screen, causing the phosphors to emit visible light.
In a cathode ray tube, the "cathode" is a heated filament.
A projection cathode ray tube has an interference filter which is disposed at a boundary between a face plate and fluorescent layers.
www.lycos.com /info/cathode-ray-tube.html   (599 words)

 Cathode Ray Tube   (Site not responding. Last check: 2007-09-11)
He was to eventually declare that these mysterious "cathode rays" were actually beams of electrons, small building blocks of matter.
The cathode is the negative electrode from which the electrons originate.
The cathode ray tube is a sealed, evacuated glass tube.
online.cctt.org /physicslab/content/Phy2HON/lessonnotes/modern/electronbeams.asp   (277 words)

Also expect more live shows from Warm Digits, Cathode's collaboration with Andrew Hodson (The Matinee Orchestra).
Artificial Worlds v3.0, Cathode's recent short film soundtrack collaboration with Richard Fenwick, has just been released on DVD, on the compilation onedotzero select dvd 5, available from somewhere near you.
Cathode's collaboration with Caro Snatch, the highly dreamy "The Addressee", appears as a coda piece on Caro's album, Es Muss Sein, available now on Phonector records.
www.cathode.org.uk   (184 words)

 Games, Gaming, Geek and Media Stuff from Cathode Tan
With that said, I've got to sign off the blog for a while.
Cathode Tan will be back in about a month, but in that time I've got to get married and leave the country (don't fret - on honeymoon).
That and a handful of issues I can't really write about publically just yet - and I gotta say that in light of all that I can barely remember what Sony is doing with their pricing, much less actually care.
cathodetan.blogspot.com   (3682 words)

 Cathode Lighting Systems   (Site not responding. Last check: 2007-09-11)
Whether your cold cathode application is domestic or abroad, we can provide a system for any location worldwide that meets each country's unique electrical requirements.
Whether you select a custom cold cathode system or one of our modular cold cathode fixtures, you can be assured that each and every product has been designed, engineered, and manufactured to ensure the highest levels of quality, performance, and longevity.
High-output electronic ballasts (120-volt and 277-volt) are now available for the Cathode Light Strip (Model CLS) and Exterior Wet-Location Cathode Light Strip (Model ECLS).
www.cathodelightingsystems.com   (234 words)

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