Carnegie had some investments in the iron industry before the war.

Carnegie made his fortune in the steel industry, controlling the most extensive integrated iron and steel operations ever owned by an individual in the United States.

After this, the iron industry was represented only by a small tinplate works, but by this stage the economy of the town was dominated by the coal mining industry.

* Blair, Alasdair M. " The British iron and steel industry since 1945 ," Journal of European Economic History Winter 1997, Vol.

Carbonates are widely used in industry, e. g. in iron smelting, as a raw material for Portland cement and lime manufacture, in the composition of ceramic glazes, and more.

At the beginning of the 20th century, the automotive industry boomed, and the many manufacturers shipped in abundant supplies of iron ore.

Nazi Germany similarly pursued an economic agenda with the aims of autarky and rearmament and imposed protectionist policies, including forcing the German steel industry to use lower-quality German iron ore rather than superior-quality imported iron.

The political decisions about the economy of Prussia ( and after 1871 all Germany ) were largely controlled by a coalition of " rye and iron ", that is the Junker landowners of the east and the heavy industry of the west.

The industry never recovered, but by that time Scotland had developed heavy industries based on its coal and iron resources.

The invention of the hot blast for smelting iron ( 1828 ) revolutionised the Scottish iron industry.

* Iron making – In the Iron industry, coke was finally applied to all stages of iron smelting, replacing charcoal.

Without some earlier ones, such as the spinning jenny and flying shuttle in the textile industry and the smelting of pig iron with coke, these achievements might have been impossible.

From 1785, perhaps because the improved version of potting and stamping was about to come out of patent, a great expansion in the output of the British iron industry began.

" Michel De Coster, Professor at the Université de Liège wrote also: " The historians and the economists say that Belgium was the second industrial power of the world, in proportion to its population and its territory (...) But this rank is the one of Wallonia where the coal-mines, the blast furnaces, the iron and zinc factories, the wool industry, the glass industry, the weapons industry ... were concentrated "

In 1971, Liberia had the world ’ s largest rubber industry, and was the third largest exporter of iron ore.

The iron and steel industry, located along the French border, is an important sector of the economy.

Mainframe computers ( colloquially referred to as " big iron ") are powerful computers used primarily by corporate and governmental organizations for critical applications, bulk data processing such as census, industry and consumer statistics, enterprise resource planning, and transaction processing.

The mining industry in the early Middle Ages was mainly focused on the extraction of copper and iron.

The widespread adoption of agricultural innovations such as the iron plowshare, as well as the growing use of metal as a building material, was also a driving force in the tremendous growth of the iron industry during this period.

The office was of logs, four rooms, each heated by an iron stove.

The door of the lockup was of oak planks and banded with strap iron.

There was no lock on the door, only an iron hook which he unfastened.

Ramey reached out with the tire iron and dislodged a chunk of mud that was caked on the spare tire rack.

The man seemed to sink a little as Ramey brought the tire iron down on his shoulder and it seemed that the blonde head was turning as he hit the man again, with his fist.

Opposite every gate was a hitching post or a stone carriage-step, set with a rusty iron ring for tying a horse.

There I was a retired wobbly and structural iron worker who'd never gouged a cent off a fellow worker in my thirty years in the movement.

and he could tell, simply by the feel of it, whether it was made of wood, iron, cloth, rubber, and so on.

It had started two years ago when he was in an iron lung.

The Hittites smelted rather brittle iron from the 15th century BC and the new metal was introduced in Greece.

A meteorite is shown below a hatchet that was forged from meteoric iron.

As no metallurgic processes were used to separate iron from nickel, the alloy was used as it was.

Meteoric iron was very rare and valuable, and difficult for ancient people to work.

Iron is usually found as iron ore on Earth, except for one deposit of native iron in Greenland, which was used by the Inuit people.

Pig iron, a very hard but brittle alloy of iron and carbon, was being produced in China as early as 1200 BC, but did not arrive in Europe until the Middle Ages.

In ancient Egypt and Mycenae, gold was often alloyed with copper to produce red-gold, or iron to produce a bright burgundy-gold.

However, very small amounts of steel, ( an alloy of iron and around 1 % carbon ), was always a byproduct of the bloomery process.

This method introduced carbon by heating wrought iron in charcoal for long periods of time, but the penetration of carbon was not very deep, so the alloy was not homogeneous.

With the introduction of the blast furnace to Europe in the Middle Ages, pig iron was able to be produced in much higher volumes than wrought iron.

Puddling was introduced during the 1700s, where molten pig iron was stirred while exposed to the air, to remove the carbon by oxidation.

Other metals including iron, gold and tin in addition to non-metallic resources are also important.

In the 19th century and up to the 1930s, the city was important for the production of railway locomotives and carriages, iron, pins, needles, buttons, tobacco, woollen goods, and silk goods.

The most important oxidation reactions are with ozone, hydrogen peroxide and oxygen ( reactions with oxygen are catalyzed by iron and manganese in the cloud droplets ).

Particularly important is the ability to sequester iron, which is the function of iron-binding proteins such as transferrin and ferritin.

The most common are calcite or calcium carbonate, CaCO < sub > 3 </ sub >, the chief constituent of limestone ( as well as the main component of mollusc shells and coral skeletons ); dolomite, a calcium-magnesium carbonate CaMg ( CO < sub > 3 </ sub >)< sub > 2 </ sub >; and siderite, or iron ( II ) carbonate, FeCO < sub > 3 </ sub >, an important iron ore.

With regard to synthetic fuels, an old but still important process is the Fischer-Tropsch synthesis of hydrocarbons from synthesis gas, which itself is processed via water-gas shift reactions, catalysed by iron.

Because of the Balkans were rich in raw materials like iron, zinc and above all oil that could help Germany survive a British blockade, it was viewed as highly important by the Allies to keep German influence in the Balkans to a minimum, hence British efforts to link British promises to support Turkey in the event of an Italian attack in exchange for Turkish promises to help defend Romania from a German attack.

Other important occupations were metallurgy and smithery, based on local iron ore reserves, other crafts like the production of combs from horn, and in the surrounding areas, agriculture.

Nickel-78's half-life was recently measured to be 110 milliseconds and is believed to be an important isotope involved in supernova nucleosynthesis of elements heavier than iron.

He calls this " a rare achievement of Art ," and notes that it was important to him as a reader: " It was in fairy-stories that I first divined the potency of the words, and the wonder of things, such as stone, and wood, and iron ; tree and grass ; house and fire ; bread and wine.

The most important regional industries are: mining, iron, lead and zinc metallurgy, power industry, engineering, automobile, chemical, building materials and textile.

In English it is generally called an Assegai. A shami Arab warrior ( ca. 1914 ) carrying a long hunting Assegai | az-zaġāyah It is a pole weapon used for throwing or hurling, usually a light spear or javelin made of hard wood and pointed with a forged iron tip. The az-zaġāyah played an important role during the Islamic conquest as well as during later periods, well into the 20th century.

" To put artifacts in their proper context I consider it most important to pay attention to the chronological sequence, and I believe that the old idea of first stone, then copper, and finally iron, appears to be ever more firmly established as far as Scandinavia is concerned.

By 1830 when iron and later steel became important the Belgium coal industry had long been established, and used steam-engines for pumping.

Banded iron beds are an important commercial source of iron ore, such as the Pilbara region of Western Australia and the Animikie Group in Minnesota.

Research shows that Zug was important as an administrative centre of the Kyburg and the Habsburg office, then as a local market place, and, thereafter, as a stage town for the transport of goods ( particularly salt and iron ) over the Hirzel hill towards Lucerne.

Amphibole () is the name of an important group of generally dark-colored rock-forming inosilicate minerals, composed of double chain tetrahedra, linked at the vertices and generally containing ions of iron and / or magnesium in their structures.

In recent years iron has become an important player when discussing ocean dynamics and nutrient cycles.

Diabetes: The pancreas which also stores iron is very important in the body ’ s mechanisms for sugar metabolism.

Early diagnosis is important because the late effects of iron accumulation can be wholly prevented by periodic phlebotomies ( by venesection ) comparable in volume to blood donations.

Like other towns in this populous region, it is an important manufacturing centre, having coal-mines, iron, wire, glass, chemical and oil works, breweries, etc.

At the turn of the 19th century the most important manufacturing industries of Wismar were iron, machinery, paper, roofing-felt and asphalt.