blast-furnace burden

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• blast furnace — a large vertical furnace for smelting iron from ore, using coke as fuel: designed so as to direct a continuous blast of air through the fuel in order to obtain a high rate of combustion. [1700 10] * * * Vertical shaft furnace that produces liquid …   Universalium

• Burden — Bur den (b[^u] d n), n. [Written also burthen.] [OE. burden, burthen, birthen, birden, AS. byr[eth]en; akin to Icel. byr[eth]i, Dan. byrde, Sw. b[ o]rda, G. b[ u]rde, OHG. burdi, Goth. ba[ u]r[thorn]ei, fr. the root of E. bear, AS. beran, Goth.… …   The Collaborative International Dictionary of English

• Burden of proof — Burden Bur den (b[^u] d n), n. [Written also burthen.] [OE. burden, burthen, birthen, birden, AS. byr[eth]en; akin to Icel. byr[eth]i, Dan. byrde, Sw. b[ o]rda, G. b[ u]rde, OHG. burdi, Goth. ba[ u]r[thorn]ei, fr. the root of E. bear, AS. beran,… …   The Collaborative International Dictionary of English

• burden — burden1 burdener, n. burdenless, adj. /berr dn/, n. 1. that which is carried; load: a horse s burden of rider and pack. 2. that which is borne with difficulty; obligation; onus: the burden of leadership. 3. Naut. a. the weight of a ship s cargo.… …   Universalium

• Beast of burden — Burden Bur den (b[^u] d n), n. [Written also burthen.] [OE. burden, burthen, birthen, birden, AS. byr[eth]en; akin to Icel. byr[eth]i, Dan. byrde, Sw. b[ o]rda, G. b[ u]rde, OHG. burdi, Goth. ba[ u]r[thorn]ei, fr. the root of E. bear, AS. beran,… …   The Collaborative International Dictionary of English

• iron processing — Introduction       use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting.       Iron (Fe) is a… …   Universalium

• List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

• Direct reduced iron — (DRI), also called sponge iron,[1] is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon… …   Wikipedia

• Economic history of China before 1911 — For developments after 1911, see Economic history of Modern China. A Chinese dragon seen floating among clouds, engraved on a golden canteen dated to the 15th century, during the …   Wikipedia

• Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …   Wikipedia