If flammable gas mixtures were present, the flame of the Davy lamp burned higher with a blue tinge.

The lamp burned so brightly and cleanly that the hospital officials ordered several lamps plus a large supply of fuel.

The main distillates of petroleum at the time were lubricating oil, kerosene ( burned as lamp fuel ), and benzine, which up to then was used mainly as a cleaner and was sold in pharmacies.

* Jerusalem oil lamp: Characteristic black color of the clay because the clay was burned without oxygen.

In 1888, while studying the physical properties of hydrogen, Wróblewski upset a kerosene lamp and was severely burned.

The central station in Forbidden Valley was burned on the evening of 28 October 2007, due to a faulty halogen lamp.

While Rosecrans was president of the Preston Coal Oil Company, in 1859, he was burned severely when an experimental " safety " oil lamp exploded, setting the refinery on fire.

To avoid having the entire system go dark if a single lamp burned out, each street lamp was equipped with a device that ensured that the circuit would remain intact.

It is also burned as incense in Hindu ceremonies, and sal seeds and fruit are a source of lamp oil and vegetable fat.

It was placed under a bronze likeness of a palm tree and a gold lamp burned in front of it.

When completed, the lighthouse was lighted with an incandescent oil vapor lamp that burned kerosene.

The etymology is dubious: the word " Crot " described a small oil lamp made from burned clay, which resembles the mould used to prepare the cheese.

The Davy lamp is a safety lamp for use in flammable atmospheres, consisting of a wick lamp with the flame enclosed inside a mesh screen.

The metaphor of His Light is that of a niche in which is a lamp, the lamp inside a glass, the glass like a brilliant star, lit from a blessed tree, an olive, neither of the east nor of the west, its oil all but giving off light even if no fire touches it.

Close-up of a tungsten filament inside a halogen lamp

* Leonardo da Vinci develops an oil lamp: the flame is enclosed in a glass tube placed inside a water-filled glass globe.

A radiant heat lamp is suspended in the center of the hollow tube, and its infrared energy uniformly heats the roller from the inside.

Alternatively, the halogen lamp can be mounted inside an outer bulb, similar to an ordinary incandescent lamp, which also reduces the risks from the high bulb temperature.

Contemporary flamethrowers can incinerate a target some 50 – 80 meters ( 165 – 270 feet ) from the gunner ; moreover, an unignited stream of flammable liquid can be fired and afterwards ignited, possibly by a lamp or other flame inside the bunker.

Neon lamps primarily rely on excitation of gas molecules to emit light ; CCFLs use a discharge in mercury vapor to develop ultraviolet light, which in turn causes a fluorescent coating on the inside of the lamp to emit visible light.

The standard IMAX projector was unsuitable for use inside a dome because it had a tall lamp house on top.

The previous practice of a small filament lamp on the tip of the endoscope had left the choice of either viewing in a dim red light or increasing the light output-which carried the risk of burning the inside of the patient.

He shows her an inscription inside the lamp of how he can be freed and tells her the words to summon him in return for her promise to free him.

These are being supplanted by a battery-powered fluorescent lamp models, which are safer in the hands of young people and inside tents.

" Noting that " the nagging, scolding Mama Bear is a pillar of pettiness and conventionality " who " seems to care more about how the Bears ' tree house looks than whether anyone is happy inside ", she wrote, " some viewers may find it a genuine relief when the cubs demolish Mama's favorite lamp.

However because the lamp was suspended above and outside the reflector, a large amount of light was cast to the sides inside the projector body that was wasted and required a very large lamp for sufficient screen illumination.

The mercury lamp ( connected to white power cords ) can be seen on the left, set inside a water-jacketed quartz tube.

The mantle aids the combustion process by keeping the flame small and contained inside itself at higher fuel flow rates than in a simple lamp.

The trigger pulse forms a spark inside the lamp, without exposing the trigger voltage to the outside of the lamp.

Standard equipment included: armrests, front and rear, power brakes with front discs, electric clock, carpeting, inside hood release, lamp package, power seat, power steering and Turbo-Hydramatic transmission.

The light beam from the lamp was filtered through a half-standard thickness Corning 1840 filter.

The latter was a cabinet in which a continuous loop of Dickson's celluloid film ( powered by an electric motor ) was back lit by an incandescent lamp and seen through a magnifying lens.

In microwave-excited lighting systems, such as a sulfur lamp, a magnetron provides the microwave field that is passed through a waveguide to the lighting cavity containing the light-emitting substance ( e. g., sulfur, metal halides, etc.

As the Buddha taught in his final exhortation to his faithful attendant Ananda, it is only through becoming a “ lamp unto yourself ” that enlightenment can be won.

The amount of light from a rubidium discharge lamp that reaches a photodetector through a resonance cell will drop by about 0. 1 % when the rubidium vapor in the resonance cell is exposed to microwave power near the transition frequency.

An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a filament wire heated to a high temperature by an electric current through it, until it glows ( see Incandescence ).

Second, the emission spectrum of the same lamp shining through the sample is measured ( this is called the " sample spectrum ").

* Ophthalmoscopy or fundus photography: Ophthalmoscopy is an examination of the retina in which the eye care professional: ( 1 ) looks through a slit lamp biomicroscope with a special magnifying lens that provides a narrow view of the retina, or ( 2 ) wearing a headset ( indirect ophthalmoscope ) with a bright light, looks through a special magnifying glass and gains a wide view of the retina.

Another interesting aspect of the painting is how Hopper employs three light sources, from a desk lamp, through a window and indirect light from above.

First, when the power is first switched on, the igniter / starter ( which is wired in parallel across the lamp ) sets up a small current through the ballast and starter.

The device broadly consists of a photon emitter containing a caesium light emitter or lamp, an absorption chamber containing caesium vapor, a " buffer gas " through which the emitted photons pass and a photon detector, arranged in that order.

The caesium atom is " sensitive " to the photons from the lamp in three of its nine energy states, and therefore, assuming a closed system, all the atoms will eventually fall into a state in which all the photons from the lamp will pass through unhindered and be measured by the photon detector.

Afterwards, she took a lamp and looked through the skylight of the men's lodge.

The lamp fixture is more costly because it requires a ballast to regulate the current through the lamp.

Lit via a powerful 150W PAR46 sealed-beam lamp, the light from the lamp in these " programmable visibility " signals passes through a set of two glass lenses at the back of the signal.

When reversed, a high-quality television monitor was set up in place of the projection screen, and unexposed film stock is run through at the point where the lamp was illuminating the film.

Although creating the initial space charge and the first arc of current through the tube may require a very high voltage, once the tube begins to heat up the electrical resistance drops, thus increasing the electric current through the lamp.

A compact fluorescent lamp seen through an Amici prism

A flat-wick lamp is a simple type of Paraffin lamp, which burns Paraffin ( kerosene ) drawn up through a wick by capillary action.