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Cast iron is more brittle than wrought iron or steel, which required additional fining and then cementation or co-fusion to produce, but for menial activities such as farming it sufficed. By using the blast furnace, it was possible to produce larger quantities of tools such as ploughshares more efficiently than the bloomery.
Integrated steel mill in the Netherlands.The two large towers are blast furnaces.. A steel mill or steelworks is an industrial plant for the manufacture of steel.It may be an integrated steel works carrying out all steps of steelmaking from smelting iron ore to rolled product, but may also be a plant where steel semi-finished casting products are made from molten pig iron or from scrap.
1909 Charles Burrell & Sons 6 nominal horsepower general purpose engine, at Great Dorset Steam Fair in 2018. A traction engine is a steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location.
Flare stack at the Shell Haven refinery in England. A gas flare, alternatively known as a flare stack, flare boom, ground flare, or flare pit, is a gas combustion device used in places such as petroleum refineries, chemical plants and natural gas processing plants, oil or gas extraction sites having oil wells, gas wells, offshore oil and gas rigs and landfills.
[10]: 1 About 70% of the Earth's land-based nickel resources are contained in laterites; they currently account for about 40% of the world nickel production. [10]: 1 In 1950 laterite-source nickel was less than 10% of total production, in 2003 it accounted for 42%, and by 2012 the share of laterite-source nickel was expected to be 51%.
[6] [7] The widespread use of iron revolutionized the Bantu-speaking farming communities who adopted it, driving out and absorbing the rock tool using hunter-gatherer societies they encountered as they expanded to farm wider areas of savanna. The technologically superior Bantu-speakers spread across southern Africa and became wealthy and ...
NASA G2 flywheel. Flywheel energy storage (FES) works by accelerating a rotor to a very high speed and maintaining the energy in the system as rotational energy.When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the ...
The Hedgehog entered service in 1942. Carrying a 35 lb (16 kg) Torpex charge, each mortar projectile had a diameter of 7.1 in (18 cm) and weighed about 65 lb (29.5 kg). The spigots were angled so the projectiles would land in a circular pattern with a diameter of 130 ft (40 m), about 200 yd (180 m) ahead of the ship's position.