history platinum encyclopedia

  • platinum Color, Symbol, Uses, & Facts Britannica

    Platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8–10, Periods 5 and 6, of the periodic table. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack.

  • Explore further

    Platinum Wikipediaen.wikipediaPlatinum Element information, properties and usesrscPlatinum Rausser College of Natural Resourcesnature.berkeley.eduPlatinum (Pt) Chemical properties, Health andlenntechPlatinum Definition of Platinum at DictionarydictionaryRecommended to you based on what's popular • Feedback
  • Platinum Wikipedia

    Platinum (platinium out of American and Canadian English) is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platino, meaning "little silver".. Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements.

  • Pronunciation: /ˈplæt(ɪ)nəm/ ​(PLAT-(ə)-nəm)
  • Platinum group chemical element group Britannica

    Malleable platinum, obtainable only upon purification to essentially pure metal, was first produced by the French physicist P.F. Chabaneau in 1789; it was fabricated into a chalice that was presented to Pope Pius VI. The discovery of palladium was claimed in 1802 by the English chemist William Wollaston, who named it for the asteroid Pallas.

  • Encyclopaedia Britannica History, Editions, & Facts

    Encyclopaedia Britannica is the oldest English-language general encyclopedia. The Encyclopaedia Britannica was first published in 1768, when it began to appear in Edinburgh, and its first digital version debuted in 1981. In 1994 Britannica released the first Internet-based encyclopedia, and Britannica was launched in 1999. Britannica relies on outside experts and its own editors to write

  • King James Version History & Background BritannicaJan 02, 2021Christmas Encyclopedia Britannica BritannicaDec 15, 2020See more results
  • rhodium Encyclopedia Britannica Britannica

    Rhodium, chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table, predominantly used as an alloying agent to harden platinum. Rhodium is a precious, silver-white metal, with a high reflectivity for light.

  • Platinum print Wikipedia

    The first person to have recorded observing the action of light rays on platinum was Ferdinand Gehlen of Germany in 1830. The following year his countryman Johann Wolfgang Dobereiner determined that the action of light on platinum was quite weak, but that perhaps something could be combined with platinum to increase its sensitivity.

  • Platinum Technology Inc. Encyclopedia of Chicago

    Platinum Technology Inc. Founded in 1987 by Andrew Filipowski, this computer software company was one of the fastest-growing firms in the Chicago area during the 1990s. The company began by specializing in database software and then moved into other software products. In 1989, Platinum grossed $6 million in sales and employed about 40 people.

  • Diamond Encyclopedia

    Jun 08, 2018· Diamond. Diamond is cubic native carbon with the same composition as graphite,but with different structure. It is the hardest mineral (10 on the Mohs' scale ), with the highest refractive index of 2.417 among all transparent minerals,and has a high dispersion of 0.044. Diamonds are brittle.

  • Wikipedia, the free encyclopedia

    Guillermo Lasso (pictured) is elected President of Ecuador.; At the British Academy Film Awards, Nomadland wins four awards, including Best Film.; In golf, Hideki Matsuyama wins the Masters Tournament.; In horse racing, Minella Times wins the Grand National, with Rachael Blackmore becoming the first female jockey to win in the race's 182-year history.; The volcano La Soufrière erupts in Saint

  • Ford F-Series Wikipedia

    The Ford F-Series is a series of trucks marketed and manufactured by Ford.In production since 1948, the F-Series is a range of light-duty trucks marketed as full-size pickup trucks, slotted above the compact Ford Ranger in the Ford truck model range. Since 1999, the F-Series also includes the heavier-duty Super Duty series, which includes pickup trucks, chassis cab trucks, and medium-duty trucks.

  • Facts About Platinum Live Science

    A cylindrical hunk of platinum and platinum alloy is used as the international standard for measuring a kilogram. In the 1880s, about 40 of these cylinders, which weigh about 2.2 lbs. or 1

  • Ruthenium chemical element Encyclopedia Britannica

    Ruthenium (Ru), chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table, used as an alloying agent to harden platinum and palladium.Silver-gray ruthenium metal looks like platinum but is rarer, harder, and

  • Platinum Technology Inc. Encyclopedia of Chicago

    In 1989, Platinum grossed $6 million in sales and employed about 40 people. Nine years later, the company's annual sales reached about $1 billion, and it employed 5,000 people around the country, including 1,500 in the Chicago area. In 1999, Platinum was purchased for $3.5 billion by Computer Associates, a larger competitor based in New York

  • Mining The Canadian Encyclopedia

    Apr 07, 2009· History, politics, arts, science & more: the Canadian Encyclopedia is your reference on Canada. Articles, timelines & resources for teachers, students & public. Important Canadian mineral products include precious metals (gold, silver, platinum) and diamonds; base metals inaugurating the Northwest Territories’ storied mining history.

  • Diamond Encyclopedia

    Jun 08, 2018· History. It is thought that diamonds were first discovered in Indiaabout 6,000 years ago in the riverbeds of the region. Traders were responsible for bringing the gems as far east as China and as far west as Rome during the classical and early medieval eras. The Chinese were the first to hamess the unusually tough nature of the gem and used it

  • Styx Encyclopedia

    May 08, 2018· Styx. Rock group. For the Record . Selected discography. Sources. Styx, one of the most successful “ arena rock ” groups of all time, was born on the South Side of Chicago in the late 1960s. Tradewinds, a trio formed by neighbors Dennis DeYoung and Chuck and John Panozzo, offered a distinctive blend of driving rock ‘ n ’ roll rhythms with classical-influenced melodic themes.

  • Wikipedia

    Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation. Wikipedia The Free Encyclopedia. English 6 280 000+ articles. Español 1 673 000+ artículos. Deutsch 2 562 000+ Artikel.

  • Robert Gabriel Mugabe Encyclopedia

    Robert Gabriel Mugabe 1928 —. President of the Republic of Zimbabwe. At a Glance . Life ’ s Destiny Set. Landed in Prison. Independence. Sources. Robert Gabriel Mugabe, Zimbabwe ’ s president, is a man who focused on his life ’ s work early. While in his twenties he decided to help less courageous black countrymen achieve independence from British colonial rule.

  • Encyclopedia Britannica for sale eBay

    Buy Encyclopedia Britannica and get the best deals at the lowest prices on eBay! Great Savings & Free Delivery Collection on many items

  • Ford F-Series Wikipedia

    The Ford F-Series is a series of trucks marketed and manufactured by Ford.In production since 1948, the F-Series is a range of light-duty trucks marketed as full-size pickup trucks, slotted above the compact Ford Ranger in the Ford truck model range. Since 1999, the F-Series also includes the heavier-duty Super Duty series, which includes pickup trucks, chassis cab trucks, and medium-duty trucks.

  • Paul Mccartney Encyclopedia

    May 29, 2018· Paul McCartney. Singer, songwriter, guitarist. The Beatles. Ex-Beatle. Selected discography. Sources. Paul McCartney cast an indelible imprint on the history of modern music during the 1960s as a member of rock and roll ’ s monumental band the Beatles. McCartney was widely accepted as a major driving force behind the Beatles and was responsible for composing an

  • Antonio De Ulloa Encyclopedia

    May 18, 2018· ULLOA Y DE LA TORRE GIRAL, ANTONIO DE (b.Seville, Spain, 12 January 1716; d.Isla de Léon, Cádiz, Spain, 5 July 1795), natural history. A mariner by profession, Ulloa was commissioned by the government, along with Jorge Juan y Santacilla, to accompany the expedition sent to America by the Paris Academy of Sciences to measure an arc of meridian (1736-1745).

  • Star Platinum Explained Stand Encyclopedia JoJo's

    PATREON:https://patreon/GrandLineReviewDISCORD: https://discord.gg/fknbjkkREDDIT: https://reddit/r/GrandLineReview/FACEBOOK:https://faceb.

  • JoJo's Bizarre Encyclopedia JoJo Wiki

    Apr 04, 2021· Welcome to the JoJo's Bizarre Adventure Wiki. JoJo's Bizarre Encyclopedia is a wiki dedicated to JoJo's Bizarre Adventure written and illustrated by Hirohiko Araki.. JoJo's Bizarre Adventure, often shortened to JoJo or JJBA, is a shōnen and seinen manga series, following the journeys of the Joestar family members across generations.. Our goal is to create a comprehensive encyclopedia for

  • Facts About Platinum Live Science

    A cylindrical hunk of platinum and platinum alloy is used as the international standard for measuring a kilogram. In the 1880s, about 40 of these cylinders, which weigh about 2.2 lbs. or 1

  • US Coin Encyclopedia Mints, Designers, Coin Grading and more

    US Coin Encyclopedia. Our encyclopedia includes general information and valuable statistics about the US coin mints, famous designers and engravers, and some basics regarding coin grading. For specific coin values, prices, details and images for all US coin types (year/mint/major variety), click the links on the left side menu to view the coin

  • Platinum Technology Inc. Encyclopedia of Chicago

    Platinum Technology Inc. Founded in 1987 by Andrew Filipowski, this computer software company was one of the fastest-growing firms in the Chicago area during the 1990s. The company began by specializing in database software and then moved into other software products. In 1989, Platinum grossed $6 million in sales and employed about 40 people.

  • History of the world Simple English Wikipedia, the free

    The Paleolithic Era is by far the longest age of humanity's time, about 99% of human history. The Paleolithic Age started about 2.6 million years ago and ended around 10,000 BC. The age began when hominids (early humans) started to use stones as tools for bashing, cutting and scraping. The age ended when humans began to plant crops and have other types of agriculture.

  • Out-of-date encyclopedia sets disappearing from shelves

    A recent search for "encyclopedia set" yielded a couple of hundred hits. A complete, 22-volume 1986 World Book Encyclopedia had the "buy it now" price of $49.99. The owner of a 26-volume set of

  • Kilogram Simple English Wikipedia, the free encyclopedia

    History. In 1879, the piece of metal was made. It was officially chosen to be the kilogram in 1889. It was made of 90% platinum and 10% iridium. Those metals were chosen because they do not rust or corrode like most metals. It is stored in a vault at the BIPM in Sèvres, France.From 1795 to 1799, the unit of mass was not called "kilogram" but was called "grave".

  • Pokémon Platinum Version Bulbapedia, the community

    Mar 10, 2021· Pokémon Platinum Version (Japanese: ポケットモンスター プラチナ Pocket Monsters Platinum) is a solitary version to Pokémon Diamond and Pearl, and the third Generation IV core series title.. The game was first seen on May 11, 2008 when a low-resolution cell-phone picture of an upcoming issue of CoroCoro magazine was leaked around the internet.

  • Encyclopedia Britannica for sale eBay

    Encyclopedia Britannica 1768 Complete 24 Volume Inc index and atlas. £0.99. 1 bid. £50.00 postage. Ending Saturday at 4:44PM BST. 2d 14h.

  • Mining The Canadian Encyclopedia

    Apr 07, 2009· Mining entails the extraction of ore, defined as rock from the earth’s crust containing valuable minerals. It may also include quarrying, or the digging of sand, gravel or aggregate for construction purposes. Although the excavation of oil sands is similar, oil and gas production is not typically considered mining.

  • JoJo's Bizarre Encyclopedia JoJo Wiki

    Apr 04, 2021· Welcome to the JoJo's Bizarre Adventure Wiki. JoJo's Bizarre Encyclopedia is a wiki dedicated to JoJo's Bizarre Adventure written and illustrated by Hirohiko Araki.. JoJo's Bizarre Adventure, often shortened to JoJo or JJBA, is a shōnen and seinen manga series, following the journeys of the Joestar family members across generations.. Our goal is to create a comprehensive encyclopedia for

  • World Book Encyclopedia Encyclopedia Sets

    World Book Encyclopedia, 2007 Edition, Classic Binding. $269.00. World Book Encyclopedia, 2008 Edition, Classic Binding. $299.00. World Book Encyclopedia, 2009 Edition, Classic Binding. $349.00. Sort By Position Product Name Price Set Descending Direction. View as Grid List. 8 Items.

  • Google Books

    Search the world's most comprehensive index of full-text books. My library

  • Pokémon Wiki Fandom

    Welcome to the wiki, Chief! We’re glad you’re here! We’re striving to be the best resource about the Pokémon World on the net, so we cover all aspects of Nintendo ’s smash hit. Whatever knowledge you have—whether it’s about the anime, card game, video game or movies—everything is welcome here.

  • Visual Encyclopedia of Chemical Engineering

    Air Swept Pulverizer. The particle feed is mixed with air as it is fed into the mill inlet (1). The beater plates (2) support the hammers (3), and distribute the particles around the periphery of the grinding chamber. The hammers grind the solid against the liner (4) of the grinding chamber. The beater plates rotate between 1600 and 7000 rpm

  • Copyright © 2004-2020 by SKD Industry Science and Technology Co. LTD All rights reserved , sitemap.xml