Other forms of agate include Lake Superior agate, carnelian agate ( exhibiting reddish hues ), Botswana agate, blue lace agate, plume agates, moss agate, tube agate ( with visible flow channels or pinhole-sized ' tubes '), fortification agate ( which exhibit little or no banding structure ), fire agate ( which has internal flash or ' fire ', the result of a layer of clear agate over a layer of hydrothermally-deposited hematite ), Mexican crazy-lace agate, which often exhibits a brightly colored, complexly banded pattern ( also called Rodeo Agate and Rosetta Stone depending on who owned the mine at the time ).

Like smallarms, cannon are a descendant of the fire lance, a gunpowder-filled tube attached to the end of a spear and used as a flamethrower in China.

The chief method of deployment of Greek fire, which sets it apart from similar substances, was its projection through a tube ( siphōn ), for use aboard ships or in sieges.

There stood there also a brass bronze tube and from it flew much fire against one ship, and it burned up in a short time so that all of it became white ashes ..."

With only Hirsch and Wentz able to read German, they struggle with interpreting the controls and then fire a salvo of torpedoes, destroying the enemy U-Boat, draining the last of the sub's batteries and spending all but the last torpedo, loaded in the malfunctioning aft torpedo tube.

The tube was relatively immune to vibration, and thus vastly superior on shipboard duty, particularly for navy ships with the shock of weapon fire commonly knocking the sensitive but delicate galena off its sensitive point ( the tube was in general no more sensitive a radio detector, but was adjustment free ).

As, sometimes, a tube or another mechanical part has to cross a wall or floor that has special fire insulation material or that have special fire insulation resistance, it is needed to recover the original level of security of the fire system in case of maintenance, or to reach the designed level of security, so to avoid or delay the propagation of flame, smoke and heat accordingly.

Some of the highlights of his stage act involved sound effects of cannon fire and thunderstorms, as well as playing "' O Sole Mio " and " La Marseillaise " on an ocarina through a rubber tube in his anus.

* Fireman's pole, wooden pole or a metal tube or pipe installed between floors in fire stations

When the friction bar is sharply pulled out, by means of a lanyard, the composition is ignited and sets fire to the powder in the long tube ; the flash is conveyed through the vent and ignites the gun charge.

The fire started in an escalator shaft serving the Piccadilly Line, which was burnt out along with the top level ( entrances and ticket hall ) of the deep-level tube station.

Wooden escalators at Greenford station | Greenford tube station, similar to those that caught fire at King's Cross St. Pancras.

Investigations later showed that a particular combination of draughts, caused by an eastbound train arriving at the station while a westbound train was leaving, created a 12 mph wind through the station and up the escalator ( known as the piston effect ; this helps ventilate the tube ), adding to the speed of the fire spreading.

While the end result matched the tube fire exactly, the simulation's depiction of the fire burning parallel to the 30 ° slope of the escalator was thought by some to be impossible and it was suspected that the simulation might be inaccurate.

The most significant feature of Swan's improved lamp was that there was little residual oxygen in the vacuum tube to ignite the filament, thus allowing the filament to glow almost white-hot without catching fire.

Rollin White developed a form of water tube steam generator which consisted of a series of stacked coils with two novel features: the first, and most fundamental, was that the coils were all joined at the top of the unit, which allowed water to flow through only when pumped, allowing control of the steam generation ; the second was pulling steam from the lowest coil, closest to the fire, which allowed for the control of steam temperature.

He then used it as the chassis for a locomotive constructed to Trevithick's pattern with a single cylinder and a simple straight through fire tube to the boiler.

The fire displaces the skin, which pulls a tiny thread, which opens a pore in the ventricle ( F ) allowing the " animal spirit " to flow through a hollow tube, which inflates the muscle of the leg, causing the foot to withdraw.

In fire tube boiler, hot gases pass through the tubes and boiler feed water in the shell side is converted into steam.

As a guideline, fire tube boilers are competitive for steam rates up to 12, 000 kg / hour and pressures up to 18 kg / cm2.

Being flammable, coal tar is sometimes used for heating or to fire boilers.

Mica insulation is used in high-temperature and fire-resistant power cables in aluminium plants, blast furnaces, critical wiring circuits ( for example, defense systems, fire and security alarm systems, and surveillance systems ), heaters and boilers, lumber kilns, metal smelters, and tanks and furnace wiring.

The boilers for heating and power generation, a significant cause of fire at the time, were located in a separate powerhouse, along with the steam-driven dynamos that produced the electricity which, along with steam for heating and hot water, was fed to the building via an underground conduit.

The construction has been dubbed " the last great quad in the city centre " and is notable for its attempt to provide energy from sustainable sources: much of the energy required to heat the building is provided by a combination of solar panels on the roof, geothermal pipes extending deep below the basement and woodchips from the College wood used to fire the boilers.

In the mid 1970's, this was the first commercial power plant to use fluidized bed combustion to fire its boilers.

For economic reasons, most fire tube boilers are nowadays of “ packaged ” construction ( i. e. manufacturers shop erected ) for all fuels.

Package boilers are generally of shell type with fire tube design so as to achieve high heat transfer rates by both radiation and convection.

Given the very rapid technological changes underway in propulsion ( from coal to oil, from boilers to turbines ), ordnance ( with better fire directors, and new high explosives ) and armor and emergence of new craft such as destroyers and submarines, Mahan's emphasis on the capital ship and the command of the sea came at an opportune moment.

The boilers are large enough to hold a fire all night, and can burn larger pieces of wood, so that less cutting and splitting is required.

* Operation and maintenance of mechanical systems, such as refrigerators, boilers, heating, ventilation, and air conditioning units, hot water systems, kitchen equipment, and piping systems ( i. e. gas, water, fire protection, and sewer systems ).

With the development of steam boilers, it was possible to jacket the kettle to make a higher grade product and to reduce the danger of fire.

Cooking holes contained granite pot boilers, pieces of stone heated in the fire and dropped into pots of water sunk into the ground ( the pottery of the time not being fireproof ).

Kinugasa and Salt Lake City exchanged fire with each other, each hitting the other several times, causing minor damage to Kinugasa and damaging one of Salt Lake Citys boilers, reducing her speed.

Old " fire-tube " boilers were known to fail due to poor build quality or lack of maintenance ( such as corrosion of the fire tubes, or fatigue of the boiler shell due to constant expansion and contraction ).

He also designed methods for heating liquid boilers with steam rather than fire, presumably increasing their safety significantly.

The coal was used to fire the boilers at the Australian Paper Manufacturers paper mill, with of coal per day was transferred in two trains per day.

Boiler explosions are of a particular danger in ( locomotive-type ) fire tube boilers because the top of the firebox ( crown sheet ) must be covered with some amount of water at all times ; or the heat of the fire can weaken the crown sheet or crown stays to the point of failure, even at normal working pressure.

Around that statue in the green park where children play and lovers walk in twos and there is a glowing view of the whole city, in that park are the rows of marble busts of Garibaldi's fallen men, the ones who one day rushed out of the Porta San Pancrazio and, under fire all the way, up the long, straight narrow lane to take, then lose the high ground of the Villa Doria Pamphili.

Look at the trees as to size and interest, the amount of shade they provide, how healthy they are, the problems of maintenance, fire hazards, wind throw, etcetera.

Where schools, fire and police protection, and similar municipal services are of equal quality in city and country, real estate taxes are usually about the same.

Find out whether fire protection, sewage system, gas, water mains, and electrical lines are available in the locality.

The fire ant is thought to infest approximately two million acres of land in Georgia, attacking crops, young wildlife and livestock and can be a serious health menace to humans who are allergic to its venom, Blasingame said.

Modern Zen presentation to the West insists on the anti-authoritarian, highly pragmatic nature of the Zen belief -- scriptures are burned to make fire, action is based on direct self-confidence, and so on.

Many of you are familiar, I'm sure, with the story of my early struggles: the fire in January, 1947, that destroyed everything -- even our precious list of subscribers.

* Cal-Earth ( The California Institute of Earth Art and Architecture ) has developed a patented system called Superadobe, in which bags filled with stabilized earth are layered with strands of barbed wire to form a structure strong enough to withstand earthquakes, fire and flood.

The saucers are of two kinds: Large saucers fire in random directions, while small saucers aim at the player's ship.

Antimony compounds are prominent additives for chlorine-and bromine-containing fire retardants found in many commercial and domestic products.

* 2000 –-tall Ostankino Tower in Moscow catches fire, three people are killed.

Hippolytus of Rome pictures the underworld ( Hades ) as a place where the righteous dead, awaiting in the bosom of Abraham their resurrection, rejoice at their future prospect, while the unrighteous are tormented at the sight of the " lake of unquenchable fire " into which they are destined to be cast.

* 2006 – 243 people are injured in pro-democracy protest in Nepal after Nepali security forces open fire on protesters against King Gyanendra.

* L-shaped, when a short leg of firing units are placed to enfilade ( fire the length of ) the sides of the linear kill zone.

* V-shaped, when the firing units are distant from the kill zone at the end where the enemy enters, so the firing units lay down bands of intersecting and interlocking fire.

* 1862 – American Civil War: Battle of Baton Rouge – along the Mississippi River near Baton Rouge, Louisiana, Confederate troops attempt to take the city, but are driven back by fire from Union gunboats.

The other two are more interesting, both essentially being my father is MLK, with MLK being the reference found elsewhere in the Bible in prohibitions such as do not pass your children through the fire to MLK, in which case the following possibilities arise:

However, the resurgence of expeditionary warfare in the past twenty years has seen the emergence of gun-armed wheeled vehicles, sometimes called protected gun systems, which may bear a superficial resemblance to tank destroyers, but are employed as direct fire support units typically providing support in low intensity operations such as Iraq and Afghanistan.

They are often in dual or quadruple mounts, allowing a high rate of fire.

The monotony between battles, the constant threat of artillery fire and bombardments, the struggle to find food, the lack of training of young recruits ( meaning lower chances of survival ), and the overarching role of random chance in the lives and deaths of the soldiers are described in detail.

However, the resurgence of expeditionary warfare in the past twenty years has seen the emergence of gun-armed wheeled vehicles, sometimes called protected gun systems, which may bear a superficial resemblance to tank destroyers, but are employed as direct fire support units typically providing support in low-intensity operations such as the wars in Iraq and Afghanistan.

Wheels are more vulnerable to enemy fire than tracks, they have a higher signature and in most cases less armor than comparable tracked vehicles.

They are often in dual or quadruple mounts, allowing a high rate of fire.