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Virginia City, Nevada
Virginia City is a census-designated place (CDP) that is the county seat of Storey County, Nevada, United States, and the largest community in the county. The city is a part of the Reno, Nevada, Reno–Sparks, Nevada, Sparks Reno, NV Metropolitan Statistical Area, Metropolitan Statistical Area. Virginia City developed as a boomtown with the 1859 discovery of the Comstock Lode, the first major silver deposit discovery in the United States, with numerous mines opening. The population peaked in the mid-1870s, with an estimated 25,000 residents. The mines' output declined after 1878, and the population declined as a result. As of the 2020 United States Census, 2020 Census, the population of Virginia City was 787. History Peter O'Riley and Patrick McLaughlin are credited with the discovery of the Comstock Lode. Henry Comstock, Henry T. P. Comstock's name was associated with the discovery through his own machinations. According to folklore, James Fennimore, nicknamed Old Virginn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Census-designated Place
A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing city (United States), cities, town (United States), towns, and village (United States), villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated area, unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, Edge city, edge cities, colonia (United States), colonias located along the Mexico–United States border, and unincorporated resort and retirement community, retirement communities and their environs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form ("native metal, native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in currency and as an in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roots-type Supercharger
The Roots blower is a Pump#Positive-displacement pumps, positive displacement lobe pump which operates by pumping a fluid with a pair of meshing lobes resembling a set of stretched gears. Fluid is trapped in pockets surrounding the lobes and carried from the intake side to the exhaust. The Roots blower design does not incorporate any reduction in volume/increase in pressure as air or other fluid passes through, hence it can best be described as a blower rather than a supercharger unlike some other designs of "supercharger" such as cozette, centric, Shorrock supercharger, Powerplus supercharger and also the axial flow Eaton type supercharger which have internal "compression". The most common application of the Roots-type blower has been the Forced induction, induction device on two-stroke diesel engines, such as those produced by Detroit Diesel and Electro-Motive Diesel. Roots-type blowers are also used to supercharger, supercharge four-stroke engine, four-stroke Otto cycle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Deidesheimer
Philip Deidesheimer was a mining engineer in the Western United States. Deidesheimer was born in 1832, in Darmstadt, Electorate of Hesse before German unification. He attended the prestigious Freiberg University of Mining (''Technische Universität Bergakademie Freiberg'') and emigrated to California in 1852. He died on 21 July 1916 in San Francisco, California. Career In 1852, at nineteen, the young mining engineer traveled to the California gold fields to work for several years, including in Georgetown. In April 1860 he was hired by W. F. Babcock, a trustee of the Ophir Mine, part of the Comstock Lode silver mining boom in Nevada, and solved one of the Comstock mines' most critical engineering needs. Comstock Lode Square set timbering Deidesheimer invented a system, now known as square set timbering, using heavy timber "cubes" as supports for underground mining tunnels and shafts, that enabled skilled miners to open three-dimensional cavities of any size. In large openings, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Gold Rush
The California gold rush (1848–1855) began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California from the rest of the United States and abroad. The sudden influx of gold into the money supply reinvigorated the American economy; the sudden population increase allowed California to grow rapidly into statehood in the Compromise of 1850. The gold rush had severe effects on Native Californians and accelerated the Native American population's decline from disease, starvation, and the California genocide. The effects of the gold rush were substantial. Whole indigenous societies were attacked and pushed off their lands by the gold-seekers, nicknamed "forty-niners" (referring to 1849, the peak year for gold rush immigration). Outside of California, the first to arrive were from Oregon, the Sandwich Islands (Hawaii), and Latin America in late 1848. Of the approx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Davidson (Nevada)
Mount Davidson is both the highest and most topographically prominent mountain in both Storey County, Nevada, and the Virginia Range. The mountain forms a backdrop for the mining boomtown of Virginia City which was built above the Comstock Lode silver strike. Mount Davidson was named after Donald Davidson, a geologist. Mark Twain mentions a flag on Mount Davidson in his semi-autobiographical book ''Roughing It ''Roughing It'' is a book of semi-autobiographical travel literature by Mark Twain. It was written in 1870–71 and published in 1872, following his first travel book '' The Innocents Abroad'' (1869). ''Roughing It'' is dedicated to Twain's m ...''. As of 2003 the flagpole was still standing. References Mountains of Nevada Landforms of Storey County, Nevada Virginia City, Nevada {{StoreyCountyNV-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Mining
Placer mining () is the mining of stream bed deposits for minerals. This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are often found in alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits. The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits. Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliot Lake uranium paleoplacer within the Huronian Supergroup in Canada. The containing material in an alluvial placer mine may be too lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a Fracture (geology), planar fracture or discontinuity in a volume of Rock (geology), rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust (geology), crust result from the action of Plate tectonics, plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction, subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the Plane (geometry), plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophir
Ophir (; ) is a port or region mentioned in the Bible, famous for its wealth. Its existence is attested to by an inscribed pottery shard found at Tell Qasile (in modern-day Tel Aviv) in 1946, dating to the eighth century BC, which reads "''gold of Ophir to/for Beth-Horon ..30 shekels''". The location of Ophir is unknown, though the find confirms it as a real place which exported gold. Biblical references Ophir in Genesis 10 (the Table of Nations) is said to be the name of one of the sons of Joktan. The Books of Kings and Chronicles tell of a joint expedition to Ophir by King Solomon and the Tyrian king Hiram I from Ezion-Geber, a port on the Red Sea, that brought back large amounts of gold, precious stones and ' algum wood' and of a later failed expedition by king Jehoshaphat of Judah. The famous 'gold of Ophir' is referenced in several other books of the Hebrew Bible. In the Septuagint, other variants of the name are mentioned: ''Ōpheír'', ''Sōphír'', ''Sōpheír ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Comstock
Henry Tompkins (or Thomas) Paige Comstock (c. 1820–September 27, 1870) was a Canadian miner after whom the Comstock Lode in Virginia City, Nevada, was named. The Comstock Lode was the richest silver mine in American history. Personal life Comstock was born at Wooler, Upper Canada, the son of Noah Bird Comstock and Catherine Tompkins. He may have worked as a fur trapper and sheep drover. He came into knowledge of the enormous silver lode which bears his name, but sold out his interest early and did not profit from it. Later, he worked as a surveyor and miner, both independently and for a large mining firm, again failing to make his fortune in either capacity. Referred to by history books variously as a "sanctimonious gaffer", an "illiterate prospector", and a "quick-thinking loudmouth", he was known by his contemporaries as "Old Pancake", because he could not be bothered to bake bread. He became noteworthy in 1842 for never again leaving the house without wearing at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blogger (website)
Blogger is an American online content management system founded in 1999 that enables its users to write blogs with time-stamped entries. Pyra Labs developed it before being acquired by Google in 2003. Google hosts the blogs, which can be accessed through a subdomain of blogspot.com. Blogs can also be accessed from a user-owned custom domain (such as www.example.com) by using DNS facilities to direct a domain to Google's servers. A user can have up to 100 blogs or websites per account. Blogger enabled users to publish blogs and websites to their own web hosting server via FTP until May 1, 2010. All such blogs and websites had to be redirected to a blogspot.com subdomain or point their own domain to Google's servers via DNS. History Pyra Labs launched Blogger on August 23, 1999. It is credited with popularizing the format as one of the first dedicated blog-publishing tools. Pyra Labs was purchased by Google in February 2003 for an undisclosed amount. Premium features, which Py ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
