Storia Della Chimica
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Storia Della Chimica

Storia Della Chimica


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About the Book

Riscaldare le rocce in un incendio è tutto ciò che serve per estrarre diversi metalli dai loro minerali, in particolare stagno, piombo e (a una temperatura maggiore) rame. Il termine "fusione" descrive questa operazione. I siti archeologici in Serbia a Majdanpek, Jarmovac e Plonik della cultura Vina forniscono le prime prove di questa metallurgia estrattiva, risalenti al sesto e quinto millennio a.C. Il sito di Belovode contiene i primi esempi conosciuti di fusione del rame, come un'ascia di rame risalente al 5500 a.C. Altri siti, come Palmela in Portogallo, Los Millares in Spagna e Stonehenge nel Regno Unito, mostrano prove di primi metalli già nel terzo millennio a.C. Questi primi metalli erano elementi isolati o leghe presenti in natura. Il bronzo, una lega prodotta da rame e stagno, è un metallo migliore. La transizione alla tecnologia dell'età del bronzo avvenne intorno al 3500 a.C. La fusione di rame e stagno da affioramenti naturali di minerali di rame e quindi la fusione di quei minerali per produrre bronzo rappresenta la lavorazione dei metalli più avanzata (almeno nell'applicazione sistematica e diffusa) durante l'età del bronzo del progresso culturale umano. L'arsenico è stato spesso trovato come impurità in questi minerali presenti in natura. La mancanza di bronzi di stagno nell'Asia occidentale prima del 3000 aC è indicativa della scarsità di minerali di rame/stagno nella regione. Eserciti alla ricerca di armamenti superiori hanno segnato la storia della metallurgia dopo l'età del bronzo. La produzione di leghe superiori che consentivano la creazione di armature e armi superiori andò a vantaggio degli stati dell'Eurasia. L'uso confermato della citazione necessaria L'India fece passi da gigante nei campi dell'alchimia e della metallurgia nell'era antica. Tuttavia, come è tipico nello studio della storia antica, gli inizi definitivi sono difficili da definire e vengono sempre fatte nuove scoperte.


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Product Details
  • ISBN-13: 9798856842301
  • Publisher: Amazon Digital Services LLC - Kdp
  • Binding: Paperback
  • Language: Italian
  • Returnable: N
  • Sub Title: In quali modi possiamo definire la chimica?
  • Width: 140 mm
  • ISBN-10: 8856842300
  • Publisher Date: 10 Aug 2023
  • Height: 216 mm
  • No of Pages: 82
  • Spine Width: 4 mm
  • Weight: 154 gr


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