When the excited atoms relax back into their ground state, a low-intensity glow is emitted, giving the technique its name.

The requirement for samples of glow discharge atomizers is that they are electrical conductors.

The gas ions are accelerated towards the cathode and, upon impact on the cathode, sputter cathode material that is excited in the glow discharge to emit the radiation of the sputtered material, i. e., the element of interest.

Armfeldt's country estate is bathed in the golden glow of perpetual summer sunset at this high latitude (" Night Waltz One and Two ").

If an evacuated glass tube is equipped with two electrodes and a voltage is applied, the glass opposite of the negative electrode is observed to glow, due to electrons emitted from and travelling perpendicular to the cathode ( the electrode connected to the negative terminal of the voltage supply ).

However, a sufficiently sensitive radio telescope shows a faint background glow, almost exactly the same in all directions, that is not associated with any star, galaxy, or other object.

The glow is very nearly uniform in all directions, but the tiny remaining variations show a very specific pattern equal to that expected of a fairly uniformly distributed hot gas that has expanded to the current size of the universe.

* Electric Indigo is sometimes used as a glow color for computer graphics lighting, possibly because it seems to change color from indigo to lavender when blended with white.

The glow is the result of chemical that is created as the green chlorophyll in the peel breaks down.

The corona discharge glow at the surface of an object subjected to a high voltage electrical field is referred to as a Kirlian aura in Russia and Eastern Europe, however this should not to be confused with the paranormal concept of the aura.

The pink-orange glow running through the center of the tube is from the electric discharge which produces incoherent light, just as in a neon tube.

[...] There's one shot in particular, where Cruz enters a room in a greenish glow, which is right out of Hitchcock's picture.

Although the term phosphorescence is derived from phosphorus, the reaction that gives phosphorus its glow is properly called chemiluminescence ( glowing due to a cold chemical reaction ), not phosphorescence ( re-emitting light that previously fell onto a substance and excited it ).

A few curies ( 1 curie equals 37 gigabecquerels, 1 Ci = 37 GBq ) of < sup > 210 </ sup > Po emit a blue glow which is caused by excitation of surrounding air.

The visual sense is usually isolated by creating a soft red glow which is diffused through half ping-pong balls placed over the recipient's eyes.

When the sample is heated, at a certain temperature it will glow from the emission of electrons released from the defects, and this glow can be used to estimate the age of the sample to a threshold of approximately 15 percent of its true age.

This version of the screwdriver also appears, although never officially announced, to have a flashlight setting, as the Doctor is seen to have it emitting a continuous glow while not uttering the classic sonic noise.

In his 1967 spy thriller An Expensive Place to Die, Len Deighton misidentifies the Flemish coast tram: " The red glow of Ostend is nearer now and yellow trains rattle alongside the motor road and over the bridge by the Royal Yacht Club ..."

Modern implementations of atomic spectroscopy for studying visible and ultraviolet transitions include flame emission spectroscopy, inductively coupled plasma atomic emission spectroscopy, glow discharge spectroscopy, microwave induced plasma spectroscopy, and spark or arc emission spectroscopy.

Their distinctive orange, red, or purple glow during operation indicates the presence of gas ; electrons flowing in a vacuum do not produce light within that region.

The bluish glow from the central region of the nebula is due to synchrotron radiation.

In 1862, Elihu Burritt, the American Consul in Birmingham, described the region as " black by day and red by night ", because of the smoke and grime generated by the intense manufacturing activity and the glow from furnaces at night.

Whether this increases or decreases the maximum momentum of the ionized air is not typically measured, although the force acting upon the electrodes reduces, until the glow discharge region is entered.

During the glow discharge region, the air becomes a conductor.

Below the glow discharge region, the breakdown voltage increases again, whilst the number of potential ions decreases, and the chance of impact lowers.

Meteors begin to glow in this region though the larger ones may not burn up until they penetrate more deeply.

This same region is also detected in the faint glow of ionized atomic hydrogen seen in the visible part of the spectrum as the magnificent green arc in the picture to the right.

In an analytical glow discharge, the discharge is primarily a negative glow with dark region above and below it.

The fluorite from this region, due to europium impurities glows with a bluish light under ultraviolet excitation, and the characteristic glow of fluorospar samples from this region are responsible for the word fluorescence to describe that phenomenon.

* Aston Dark Space, the dark region between the cathode and the cathode glow in a vacuum tube

In 1963, Jim Greenacre saw a reddish glow in the region.

False-colour composite image showing the glow of auroras streaking out about 1, 000 kilometres from the cloud tops of Saturn's south polar region

Actual pre-WW II vintage gasoline fueled model engines, or authentically operational reproductions of them, are even used on some of the engine-powered designs, and a substantial interest exists in so-called " RC Assist " old timer free flight models within the SAM organization, which takes the engine powered designs of that era, powers them with more modern two and four stroke glow engines or electric motors instead, and adds rudder, elevator and engine control from a radio control transmitter, just as would be done in the regular RC hobby.

Called " tuneons " in 1930s radio sets, they were fitted as tuning indicators, and would give a brighter glow as the station was tuned in correctly.

Image: Moon centaurus th. jpg | A composite image showing the size of the radio glow from the galaxy Centaurus A in comparison to the full Moon.

In their current two-and four-stroke forms, methanol-fueled glow engines are the usual choice for radio controlled aircraft for recreational use, for engine sizes that can range from 0. 8 cm3 ( 0. 049 cu. in.

A mantle will glow brightly in the visible spectrum while emitting little infrared radiation.

A photography experiment would attempt to study the spectrum of a luminous atmospheric glow which had been reported around the orbiter, and determine how this interacted with firings of the reaction control system.

He measured the spectrum of the glow when the spectroscope was pointed toward the cathode end, then switched the power supply connections so the cathode became the anode and the electrons were moving in the other direction, and again observed the spectrum looking for a shift.

The glow of the fire reached through the openings in the windows, giving light enough to examine Mike's wound.

The pulsing glow of a cigarette.

Alley fences were made of solid boards higher than one's head, but not so high as the golden glow in a corner or the hollyhocks that grew in a line against them.

To get it out into the daylight's glow Is my life's aim both first and last, the whole.

A compromise will leave both sides without the glow of triumph, but it will save Berlin.

Mickie had a pleasant glow as he said, `` You see, both of them, I mean the President and Jeff Lawrence, are romantics.

When he was in the war, he was in Law or Supplies or something like that, and an old buddy of his told me he would come down on Sundays to the Pentagon and read the citations for medals -- just like the one we sent in for Trig -- and go away with a real glow.

Two gas lamps were no more than a misleading glow.

The red glow from the cove had died out of the sky.

He devised a detonating fuse in which a short wire was caused to glow by an electric current.

A few snowflakes sifted down through that theatrical red glow, languid as falling feathers.

`` We are now witnessing an effort to transfer to Mr. Mitchell some of the glow of Sen. Case's candidacy of last year.

All this near tragedy, which to us borders on comedy, enables us to tell the story over and over again, always warming ourselves with a glow of complacency.

Although still aware of a great light and glow of warmth in the Book, I stood outside shivering in the cold.

The glow discharge occurs in a low-pressure argon gas atmosphere between 1 and 10 torr.

Cathode rays are invisible, but their presence was first detected in early vacuum tubes when they struck the glass wall of the tube, exciting the atoms of the glass and causing them to emit light, a glow called fluorescence.

In 1857, German physicist and glassblower Heinrich Geissler sucked even more air out with an improved pump, to a pressure of around 10 < sup >− 3 </ sup > atm and found that, instead of an arc, the glow filled the tube.

The glow in the gas was caused when the electrons or ions struck gas atoms, exciting their orbital electrons to higher energy levels.

But at the anode ( positive ) end of the tube, the glass of the tube itself began to glow.

Later researchers painted the inside back wall with fluorescent chemicals such as zinc sulfide, to make the glow more visible.