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The proportions of silver and gold can vary widely. Doré bars weigh as much as 25 kg. During the 19th century gold rushes, gold nuggets and dust were melted into crude gold bars mistakenly called "bullion" by miners. They were, more accurately, doré bars with higher contents of silver and other adulterants than the mints would accept.
The Riegel mine 43 or (Sprengriegel/R.Mi. 43) is a German steel cased anti-tank bar mine used during the Second World War. The mine is a long thin rectangle . It consists of a lower and upper metal tray, and an internal metal-cased explosive block.
A miner's name for a working partner (South Wales) or for their opposite number on another shift (N. England) but also in earlier times an alternative name for a charter master. The "butty system" was the contracting system used by charter masters.
A pinch point bar has a chisel at one end. Bars are typically 5 to 6 ft (1.5 to 1.8 m) long and weigh 15 to 23 lb (6.8 to 10.4 kg). They are usually made entirely of cylindrical or hexagonal forged steel with a diameter of approximately 1 in (2.5 cm). Chisel and wedge ends typically have a blade width measuring 1 to 3 in (3 to 8 cm).
Phineas P. Gage (1823–1860) was an American railroad construction foreman remembered for his improbable: 19 survival of an accident in which a large iron rod was driven completely through his head, destroying much of his brain's left frontal lobe, and for that injury's reported effects on his personality and behavior over the remaining 12 years of his life—effects sufficiently ...
Comstock miners, 1880s. Caption on original: "To Labor is to Pray." Credit for the discovery of the Comstock Lode is disputed. It is said to have been discovered, in 1857, by Ethan Allen Grosh and Hosea Ballou Grosh, sons of a Pennsylvania clergyman, trained mineralogists and veterans of the California gold fields. [3]
Global gold demand including over-the-counter (OTC) trading rose by 1% to a record high of 4,974.5 metric tons in 2024 as investment increased, the World Gold Council (WGC) said on Wednesday ...
The miner's inch is a method of measuring the amount of flow a particular water supply system (such as a flume or sluice) is capable of supplying. The miner ’s inch measures the amount of water that would flow through a slot of a given area at a given pressure (for example, at a head of 6 inches of water , or 1.5 kPa .)