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Lamlungu, May 12, 2024
EconomyZochititsa chidwi za golide

Zochititsa chidwi za golide

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Kuyambira kalekale anthu ankayesetsa kukhala ndi golide wambiri. Chitsulo chamtengo wapatali chimenechi kaŵirikaŵiri chimayambitsa nkhondo zazikulu zimene anthu makumi, ngakhale zikwi mazanamazana anafa.

Zochititsa chidwi za golide

Paleoarchaeology imanena kuti golidi anali wofunika kwambiri panthawi ya kusintha kuchokera ku zomwe zimatchedwa "prehistory" kupita ku nthawi yeniyeni ya mbiriyakale ya chisinthiko cha anthu. Kukhalapo kwa mbiri yolembedwa ndi zipilala zachipembedzo kumaonedwa kuti ndi chinthu chodziwika kwambiri cha "mbiri yakale". Ndipo mwina Aigupto akale anali oyamba kuyambitsa migodi ya golidi m’dziko lonselo. Kufufuza, kupeza, kuchotsa ndi kugulitsa golide kunali ulamuliro wa boma, kuphwanya komwe kunalangidwa kwambiri. M’modzi mwa mayiko olemera kwambiri padziko lapansi, Russia, mpaka m’ma 1730, golide ankaperekedwa kuchokera kunja kokha. Njira zoyamba zamigodi ya golide mdziko muno zidapangidwa m'chigawo cha Arkhangelsk.

Golide ndi chitsulo chofewa moti kulimba kwake n’kofanana ndi kwa chikhadabo cha munthu. Mmodzi mwa oyamba kuika mu kufalitsidwa ndalama za otchedwa "electrum" - aloyi wa siliva ndi golidi, anali mfumu ya Perisiya Dariyo Woyamba, amene anakhalapo V m'ma BC. Patatha zaka pafupifupi XNUMX, Alexander Wamkulu anayamba kupanga mbiri yake pa ndalama za golide.

Malo osungunuka a golide kuchokera pa chitsanzo chapamwamba kwambiri cha 999 ndi madigiri 1064 Celsius. Chodabwitsa, golide ali ndi pulasitiki yodabwitsa - chifukwa chake amatha kupangidwa kukhala mapepala 0.1 micron thick (100 nanometers). Pa makulidwe awa amakhala translucent.

M’mbiri yonse ya dzikolo, anthu akhala akukumba matani pafupifupi 161,000 a golidi.

Madipoziti a golide apezeka m'makontinenti onse, koma amakumbidwa m'maiko 70 okha.

Ndizosangalatsa kuti lero China ndi mtsogoleri pakupanga golide - matani oposa 400 pachaka. Kuyambira 1840 mpaka 2016, kupanga golide pachaka kwawonjezeka ka 100. Ndizodabwitsa kuti kuchokera ku golidi mu kuchuluka kwa 1 ounce (28.35 magalamu) mutha kupanga waya wokhala ndi kutalika kwa 80 km.

Chidutswa chachikulu kwambiri cha golidi wamba m'mbiri yakale chinapezeka ku Australia mu 1872. Inali mbale ya quartz ya kilogalamu 286 yomwe ili ndi 90 kg ya golide woyenga. Zosakhulupirira, koma ndi zoona: zitsulo zambiri zimaponyedwa padziko lapansi ola lililonse kuposa momwe golide wapezedwa ndikukonzedwa m'mbiri yonse ya anthu.

Zosungirako zazikulu kwambiri za golide zimasungidwa ku Federal Reserve Bank ku New York - mipiringidzo yopitilira 500,000, yomwe ikuyimira 25% ya nkhokwe zagolide padziko lonse lapansi.

Thupi la munthu wamkulu lili ndi pafupifupi mamiligalamu 0.2 a golide.

Ndi 10% yokha ya migodi ya golidi yapadziko lonse lapansi yomwe imakwaniritsa zosowa zamakampani - pomwe 90% yazitsulo zimagwiritsidwa ntchito popanga zodzikongoletsera ndi zopangira golidi. 75% ya kulemera kwathunthu kwa golidi pakali pano kunakumbidwa pambuyo pa 1910. Aurophobia ndi dzina la matenda omwe amadziwonetsera okha mu mantha a pathological a golide ndi golide.

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Zambiri kuchokera kwa wolemba

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