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QMC Quantum Minerals - Lithium Mining Company in Canada
 
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Quantum Minerals Corp is a Lithium Mining Company based in Vancouver for mining in Canada. QMC quantum minerals is currently a top lithium producer and a profitable junior mining company to invest in. Visit https://bit.ly/2QM6bqn to know more
Lithium Production In the United States Opportunity
 
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Cypress Development (TSX-V: CYP) (OTCQB: CYDVF) is a publicly traded company focused on developing its 100%-held Clayton Valley Lithium Project in Nevada, U.S.A. Exploration by Cypress has discovered a world-class resource of a leachable lithium-bearing claystone adjacent to Albemarle's Silver Peak mine, North America's only lithium brine operation. The size of the discovery makes the Clayton Valley Project a premier target with the potential to impact the future production of lithium for a fast-growing global lithium-ion battery market. Learn more at: http://aheadoftheherd.com/Newsletter/2018html/1Exploding-Demand-for-Lithium-ion-EV-Batteries-Puts-CYP-in-The-Drivers-Seat.html This sites content is not and should not be construed as an offer to sell or the solicitation of an offer to purchase or subscribe for any investment. None of the Materials is provided on aheadoftheherd.com with a view to inviting, inducing or encouraging any person to make any kind of investment decision. Securities or other investments referred to may not be suitable for you and you should not make any kind of investment decision in relation to them without first obtaining independent investment advice from a person authorized to give it.Richard Mills is not a registered investment advisor or financial planner. Nothing on aheadoftheherd.com is to be taken as investment advice or the recommendation to purchase or sell any security. Richard Mills makes no guarantee, representation or warranty and accepts no responsibility or liability as to its accuracy or completeness. Expressions of opinion are those of Richard Mills only and are subject to change without notice. Richard Mills assumes no warranty, liability or guarantee for the current relevance, correctness or completeness of any information provided within this website and will not be held liable for the consequence of reliance upon any opinion or statement contained herein or any omission.
Mt Marion Overview
 
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Overview of operations at Mt Marion mine site.
Greenpower Energy Ltd: Guyana Morabisi Lithium,Tantalum,Niobium,REE Project
 
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The Morabisi Lithium & Tantalum Project is located within the mineral-rich greenstone belt of Central Guyana approximately 150km SW of Georgetown. Guyana is the only English speaking country in South America and is renowned as a mining-friendly jurisdiction whose commitment to the industry is evidenced by the recent commissioning of three substantial gold mines (Guyana Goldfields’ Aurora Gold Mine, Troy Resources’ Kaburi Gold Mine and Goldsource’s Eagle Mountain Gold Mine). The Project area covers over 950,000 acres and is conveniently serviced by existing road and future planned power facilities, in addition to a number of local service towns within the Project area. Greenpower Energy Limited has executed a binding Heads of Agreement with Guyana Strategic Metals Inc. (GSM), to acquire up to a 74% interest in the Morabisi Project. GSM is a private Canadian company established by a group of mining professionals with significant Guyanese experience and in-country expertise. Over the past two and a half years, GSM has undertaken a substantial amount of work in terms of identifying areas within Guyana which are prospective for lithium and tantalum (including compiling, interpreting and undertaking desktop work in relation to historical information). Work on the Project has seen extensive sampling confirm high levels of Tantalum in addition to geochemistry results confirming accessary minerals consistent with LCT type Pegmatites with strong Rb, Cs, Be and Ta anomalies. Encouragingly, lithium bearing pegmatites have been identified in outcrop within quartz-microcline-tourmaline zone and on-trend with mapped LCT type Pegmatite veins/ring dykes identified on margin of batholith with over 40 km of combined strike length. The Phase II work has commenced at the Morabisi Lithium/Tantalum Project in Guyana in August 2017. Phase II exploration of the Morabisi Li-Ta-REE Project is designed to consolidate and expand exploration results from the Phase I exploration programme. In summary, exploration in the Phase I programme discovered Lithium occurrences of up to 1.04% Li2O associated with pegmatites at Turesi Ridge and very encouraging geochemistry results in two locations within 20km Ridge (East Camp and Banakaru). Lithium occurrences in rock chips and associated stream sediment sampling results warrant further exploration. The Phase II Morabisi Project exploration programme is designed to be carried out over a four-month period which includes the forthcoming dry season, from August 2017 to November 2017. Phase I was focused on mapping and sampling historically reported spodumene occurrences in the southern margin of the Morabisi Batholith. The first Phase will also revisit historical mining camps in the Robello and Rumong-Rumong rivers, where Coltan (Niobium and Tantalum) production has been undertaken in the past from alluvial deposits. These historical camps coincide with the location of several zoned pegmatite veins and dykes described by the British Guiana Geological Survey (BGGS). Greenstones adjacent to fertile granites are also key target areas for spodumene-bearing LCT pegmatites, and will be investigated as part of the phase 1 program. South of the granite contact is approximately 20 km of NW-SE orientated ridgeline hosted in greenstones (metavolcanics and metasediments), where additional LCT pegmatites are expected to occur. This area has seen minimal sampling, however minerals consistent with LCT pegmatites. Music: The Story Unfolds - Jingle Punks https://youtu.be/_8iypSHvdx0
Lithium lighting up renewables
 
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Sino-US Greenbushes, announced it's doubling lithium output. But by increasing supply the Western Australian company could also threaten some junior players who piled in as prices rose sky high.
Views: 402 George Cybergringo
Bitclub Registration Burundi
 
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Sign up and learn more ► http://bitclub.network/lgclub LUCRATIVE WAY TO EARN CRYPTOCURRENCY
Multideck Lift Type Shaking Table for gold,tin,tantalum,niobium,zircon.ilmenite
 
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Shaking Table which is also called table concentrator, it's effective in processing precious and base metal, rare metal and non-metallic minerals, widely used in separation for Gold, Silver, Tin, Columbium, Tantalum, Titanium, Barium, Tungsten, Iron, Chrome, Manganese, Zircon, Lead, Zinc, Mercury, Copper, Aluminum, etc. The range of effective separating particle size of shaking table is 2 to 0.022 mm. Advantages and Characteristics  Ingenious structure of inertial gearing, self balanced vertical force component. No vertical jump because no vertical vibrating force. It can be installed on the building floor, or on the bracket  Lift type, minimal consumption of friction, reduce vibration and energy-saving, non-required bulky base, quick and flexible installation  It adopts fiberglass deck with wear-resistant layer, wear-resistant, waterproof, anti-dry, anticorrosion, non-deformed, less maintenance, long service life  The deck installed in an uniform frame Layer-by-layer, easy to install and unload, increase processing capacity per unit area. Replace different weight blocks can change the stroke of shaking table  It adopts variable-frequence governor, easily change frequency of stroke to adapt different material with different particle size and feature for details,please contact me any time: my Cell/WhatsApp:+86 18379873189 Mily e-mail:[email protected] know more us from Website: http://jxwelltech.en.alibaba.com/ http://www.benefication.com
Views: 55 Mily huang
Have you heard the Hafnium buzz?
 
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April 5, 2017 -- Ian Chalmers, Managing Director of Alkane Resources Ltd. (ASX: ALK | OTCQX: ANLKY), in an interview with InvestorIntel’s CEO, Tracy Weslosky discuss the new super metal hafnium. Hafnium, which is building on its nuclear energy application to absorb heat --- is now expanding into the tech and automotive sectors. Ian comments, “[there’s] a lot of potential interest [in hafnium] converting the heat of the automobile back into electricity.” Ian points to a shortage as demand increases. As a multi-commodity company, Ian goes on to discuss Alkane’s rare earths and comments on 2017 market prices. Ian will be presenting at InvestorIntel’s 6th Annual Cleantech and Technology Metals Summit on Monday and Tuesday, May 15th and 16th in Toronto, Canada at the Omni King Edward Hotel. Tracy Weslosky: Ian, we were delighted to see you’re one of the top 50 performing OTC stocks last year. Is that correct? Ian Chalmers: It was great. I must admit I was quite surprised, but it was great to see. It was great that we get some recognition for everything that’s going on in the company. Tracy Weslosky: Speaking of recognition, you’re coming to North America, May 15th and 16th to speak at the Cleantech & Technology Metals Summit, yes? Ian Chalmers: Yes I am. I’m looking forward to it. Tracy Weslosky: As one of the featured speakers, can you share with us what you plan on discussing, as Alkane Resources is a multi-commodity play? Ian Chalmers: We thought this time we’d do something slightly different. We’ve always talked about the project or financing the project and those sort of things. We would like this year to talk about hafnium. We think it’s appropriate that we bring up hafnium to the broader audience because hafnium is a fascinating metal. Certainly all the work that we’ve done on the last 2-3 years on hafnium indicates it’s one of these metals that is really going to have a big impact on our future. I’d like us to expose the world to some of our fascinating developments. Tracy Weslosky: Many of the members of our audience don’t know about hafnium. Ian, I am a believer in hafnium and the technology that hafnium can be used for is quite sizzling. Could you give the InvestorIntel audience a bit of an overview…to access the complete interview, click here Disclaimer: Alkane Resources Ltd. is an advertorial member of InvestorIntel.
Views: 825 InvestorIntel
The Electric Highway to the Talison Lithium mine | Day 914-918 | Plug Me In
 
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After a month in Perth I left the city and went into Western Australia's Southwest region. Easy coverable because of the Electric Highway, fast chargers placed at strategic places. This led me to the world's biggest lithium mine and saw how the Blue Bandits battery is made. 👍 SUBSCRIBE TO THIS CHANNEL: 👍 http://bit.ly/SUBSCRIBE-PMI 📲 FOLLOW THE ADVENTURE ON SOCIAL MEDIA 📱 Facebook: http://www.facebook.com/PlugMeIn Instagram: http://www.instagram.com/PlugMeInTravel Twitter: http://www.twitter.com/WiebeWkkr 🖥 WEBSITE 🖥 http://www.plugmeinproject.com 🔌 🔌 PLUG ME IN 🔌 🔌 http://www.plugmeinproject.com/plug-me-in
Views: 1534 Plug Me In
Mining industry of Burundi | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Mining_industry_of_Burundi Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9532464334774808 Voice name: en-GB-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Burundi is a producer of columbium (niobium) and tantalum ore, tin ore, and tungsten ore, and some deposits of gold which are designated for export. Burundi has resources of copper, cobalt, nickel, feldspar, phosphate rock, quartzite, and rare reserves of uranium, and vanadium. The country is also a producer of limestone, peat, sand and gravel for domestic consumption and as building materials. As of 2005, manufacturing accounted for 8% of the country's gross domestic product.National gold production increased to 3,905 kg in 2005 from 3,229 kg in 2004 increasing dramatically from just 415 kg in 2001 because of higher gold prices. Gold reportedly accounted for more than 90% of the value of Burundi’s total mineral production in 2005. Machanga Ltd. of Uganda and more recently the Burundi Mining Corporation were responsible for mining much of the country's primary gold reserves which are concentrated in Muyinga Province in the north-east of the country.Columbium (niobium) and tantalum were mined by Asyst Mines, Comptoirs Miniers de Burundi S.A., Hamza, and Habonimana but the production of columbite-tantalite ore decreased considerably to 23,356 kg in 2004 from 72,441 kg in 2002 because low world market prices saw a slump in the demand for tantalum oxide in 2004. In 2005, production increased to 42,592 kg and has continued to rise again and columbite-tantalite production accounted for 5% of the value of Burundi’s mineral production as of 2005. An Australian company AuArgosy Minerals Incorporated was proposing to develop mines in the country but has had its Mining Convention and licences suspended by the government due to failure to meet commitments. Small quantities of tungsten and tin but only account for 3% of Burundi's total mineral production according to the Burundi Ministry of Energy and Mines The Office National de la Tourbe a branch of the government is responsible for peat production which is extracted notably in the Akanyara Valley near Buyongwe and in 2005 unmined resources of peat were stated by the Burundian government to total around 36 million metric tons. However Burundi has no resources of coal, natural gas, or petroleum meaning that electricity production in the country was very problematic. Hydroelectric power stations now account for most of the country’s electricity production as they do not have the natural reserves to produce it.
Views: 24 wikipedia tts
TriMetals Mining CEO Ralph Fitch: Gold Springs is a "strongly economic unit"
 
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TriMetals Mining (TSX:TMI) CEO Ralph Fitch spoke to the Investing News Network at the 2015 PDAC conference in Toronto about its various projects in Chile, Bolivia, and its flagship project Gold Springs in Nevada. TriMetals Mining is undergoing international arbitration for the expropriation of the Malku Khota project in Bolivia. 2014, Mr. Fitch says, "was a pivotal year for us," as an updated resource for Gold Springs was announced, as well as a PEA which showed a pre-tax NPV 5% of $162 million with a 57.5% IRR. He continues, "It's a very strong project, and the thing to remember about that is that we've only actually drilled 10% of the gold target so far and we've already got what appears to be a strongly economic unit."
Views: 115 InvestingNews
Production of Tantalum Beads by X-medics
 
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X-medics is a specialized tantalum player with more than a decade of knowhow in the field of tantalum products and the manufacturing of tantalum beads. We are continually improving our business concept and today we can offer the leading product quality, the uppermost technical documentation and the shortest lead times available in the market. X-medics is situated in Copenhagen in the high-tech Medicon Valley region area connecting Denmark and Sweden. We supply customers globally in the Americas, Europe, Asia and Africa. X-medics is highly flexible and can handle orders ranging from only a few hundred beads to hundreds of thousands for shipping directly from stock to reach customers globally in a few days. X-medics’ customer base spans from small prototype workshops to large fabrication facilities and includes the majority of the world’s top-10 spinal implant manufactures. X-medics materials are today implanted in millions of patients. To illustrate how X-medics works, let’s take a look at the fabrication of tantalum beads. Tantalum beads, tantalum balls and tantalum spheres are synonyms for the same product. Surgical grade tantalum wire is used as raw material in the manufacturing of X-medics’ tantalum beads. As mandated by the Dodd-Frank law on conflict materials, X-medics evaluates the supply chain concerning conflict-free sourcing. We verify that the raw material supplier has undergone an independent evaluation by an auditor appointed by the Conflict-free sourcing program and that the smelter has a valid conflict free smelter identification number. The conflict free smelter ID and the delivery date of the wire can be found in the certificate that follows any shipment from X-medics. The tantalum wire is now sent for chemical and mechanical testing performed by an ISO accredited laboratory. The laboratory validates the wire against the ASTM and ISO material-standards and issues an independent 3rd party material testing certificate. This certificate is stored by X-medics and a copy is provided as an appendix in the certificate to the customer. If the trial results are acceptable, the wire will be approved for processing into tantalum beads. The beads are manufactured in a series of steps, ground and polished to a narrow tolerance of 5 micrometres or 0.2 micro inches equal to A.F.B.M.A. grade 50. After industrial cleaning and drying the beads undergo an intensive visual inspection by trained personnel. Balls with an uneven shape or with surface defects will be removed from the batch. The tolerance is subsequently tested independently of production by calibrated equipment under the X-medics medical device quality system. The beads are then sent to a specialized ISO certified medical device cleaning facility, where they undergo a validated cleaning and passivation procedure of more than 10 steps to fulfil the requirement of ASTM F86 for surgical implants. The parts are then returned to X-medics together with a cleaning certificate. After the cleaning, a batch sample will be sent to an independent ISO accredited laboratory in order to validate the surface purity of the beads. The laboratory conducts a cytotoxicity test for biocompatibility on the sample. This test reveals if potentially harmful particles or chemicals remain after processing. The laboratory then issues an independent test report with the result. If the 3rd party testing shows that the beads are of adequate purity, the batch will be released for packaging and shipping to our customers The internal and external test results as well as the conflict material information are consolidated in a test certificate provided to the customer together with a copy of the 3rd party material testing certificate and the cleaning ASTM F86 cleaning certificate. The total value of this comprehensive external documentation work adds up to thousands of dollars or euros. As X-medics shares the documentation with a large number of customers, the added cost to an individual order will only be a small fraction of the value. Total production and testing time for a batch of tantalum beads is typically 3-6 months. As X-medics delivers the tantalum beads from stock, customer orders can be handled in only a few hours. Please contact us to quote your next order of tantalum beads, rods or wire. Simply send your request by email to [email protected] More than 99% of our requests are responded to within 24 hours, 7 days a week. If X-medics’ quotation has not reached you the next day, please call us as your email might not have reached us. To see our full product program and find more technical information please visit our website www.x-medics.com
Views: 16184 XMEDICS SCANDINAVIA
Ontario Rocks and Minerals at the Rivers Occurrence
 
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We pay a brief visit to the Rivers Occurrence wich is a pegmatite dyke that is famous for it's tantalum and niobium minerals
Views: 2799 Caver461
Vanadium – The New Age Metal, Introduction to Prophecy’s Gibellini Vanadium Project
 
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Prophecy Development Corp (TSX: PCY) owns Gibellini project – the only large-scale, open-pit, heap-leach vanadium project of its kind in North America. Located in Nevada, Gibellini is currently undergoing EPCM and EIS preparation. With global vanadium supply declining and demand increasing, this is the right project at the right time. Prophecy has no bank debt and approximately 95 million shares outstanding.
Re-election jig video non-magnetic minerals enrichment of magnetic separation of magnetic separation
 
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DESEN-World Class Mining processing machines,Better engineering,Better results!
PEA for Cypress Clayton Valley Lithium Project, Nevada
 
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Preliminary Economic Assessment (PEA) for Cypress Development's Clayton Valley Lithium Project in Nevada - September 2018
Views: 631 Don Myers
Monazite in Cloud Chamber
 
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Monazite and Uranium Dioxide in home made cloud chamber
Views: 67 simon orr
CONGO STORIES: Battling Five Centuries of Exploitation and Greed
 
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CONGO STORIES: Battling Five Centuries of Exploitation and Greed John Prendergast, Founding Director of The Enough Project, human rights and anti-corruption activist, New York Times best-selling author, who has focused on peace in Africa for over thirty-five years. Sponsored by the John Sloan Dickey Center for International Understanding. Recorded April 16, 2019
Views: 108 Dartmouth
Peak Resources -  Tanzania Ngualla Rare Earth Deposit - New Drone Footage
 
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THE ASSET – THE NGUALLA RARE EARTH DEPOSIT NGUALLA RARE EARTH PROJECT - UNDERSTOOD -DE-RISKED- COMPETITIVE - MANAGEABLE - READY TO BE DELIVERED! Ngualla is one of the world’s largest and highest grade undeveloped neodymium (Nd) & praseodymium (Pr) rare earth projects. The Ngualla Rare Earth Project is centred on the Ngualla Carbonatite in southern Tanzania, 147 kilometres from the city of Mbeya on the edge of the East African Rift Valley. The name ‘Ngualla’ comes from the Swahili word for ‘bald head’, which reflects the appearance of the hill – mostly bare land on which there is no habitation, agriculture, grazing or reserves. The weathered Bastnaesite Zone that is the target for development occurs as a thick blanket of high grade rare earth mineralisation from surface on Ngualla Hill. Rare earths are contained within the mineral bastnaesite within a weathered host rock that contains very low levels of phosphate, carbonate, uranium and thorium compared to other rare earth deposits. This makes it easy-to-mine by low strip ratio open pit techniques and subsequently upgraded to a high grade processed concentrate through a multi stage processing plant on site. The Total All Resources Mineral Resource estimate for the Ngualla Project above a 1% REO cut-off is 214.4 million tonnes at 2.15% REO, for 4,620,000 tonnes of contained REO. Included in this Mineral Resource is the Weathered Bastnaesite Zone Mineral Resource, the measured and indicated portions of which form the basis of the Ore Reserve estimate. At a 1% REO lower grade cut-off the Mineral Resource estimate for the Weathered Bastnaesite Zone is 21.3 million tonnes at 4.75% REO, for 1,010,000 tonnes of contained REO. Details of the Mineral Resource estimate are contained within the ASX Announcement “Higher grade Resource for Ngualla nearly 1 million tonnes REO” as of 22 February 2016. The Ore Reserve estimate for the Ngualla Project is 18.5 million tonnes at 4.80% REO for 887,000 tonnes of contained REO. ASX Announcement “Ngualla Rare Earth Project – Updated Ore Reserve” as of 12 April 2017 provides further details and assumptions. The Ore Reserve represents just 22% of the Total All Resources Mineral Resource but is sufficient to support a mine life of 26 years. The Company plans to export approximately 32,700 tonnes per annum of rare earth concentrate grading 45% REO from Tanzania to the UK refinery. Ngualla is also host to widespread, high grade niobium-tantalum, phosphate, fluorspar and barite mineralisation. These additional commodities are at an early stage of evaluation and represent potential upside opportunities for additional products from the project. Tanzania is politically stable and has a well-established mining culture, being the fourth largest gold producer in Africa. Existing transport infrastructure together with a low tonnage, high value product will enable cost effective transport from Ngualla to the deep water port in Dar es Salaam. NdPr Rare Earth Tanzania Ngualla Electrification Enabling Low Carbon Technologies Lynas EV Electric Vehicles Wind Turbines Robotics Next Big Thing Permanent magnets Ethical Sustainable Supply. NGUALLA RARE EARTH PROJECT - UNDERSTOOD -DE-RISKED- COMPETITIVE - MANAGEABLE - READY TO BE DELIVERED!
LithiumOre partner 3PL Operating says Lake Livada deposit could hold up to 3b barrels of lithium
 
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Vince Ramirez, CEO of 3PL Operating Inc, tells Proactive Investors the privately held lithium exploration company is working with LithiumOre (OTCQB: ORRP) to explore and develop lithium in Railroad Valley, Nevada. Ramirez says the company shares a neighboring land stake with LithiumOre's claim at its Western Nevada Basin project, and says the "$10 billion dollar question" is the amount of lithium within the Railroad Valley brine deposit, known as Lake Livada, which he believes is 3 billion barrels.
Pilbara Minerals Presentation at Resources Rising Stars 2015
 
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Presentation from Pilbara Minerals Executive Director Neil Biddle at the Resources Rising Stars - Gold Coast - 25th September 2015.
Fly-through of Rhyolite Ridge Lithium-Boron Project in Nevada
 
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23 October 2018 - Fly-through shows the detailed development plans for the Rhyolite Ridge Lithium-Boron Project flowing the Pre-Feasibility Study completed in October 2018.
Views: 743 IONEER Corporate
Greg Pendura - Solid Resources - Exploring the Iberian Pyrite Belt
 
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Greg Pendura CEO of Solid Resources spoke about how his company are exploring the Iberian Pyrite belt in Spain in order to develop a European conflict-free Tantalum project. Full video at: http://objectivecapitalconferences.com/ocic/globalR2011-videos.php
Views: 286 objcapconferences
De Beers, Anglo American and AfriTin make headlines this week
 
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De Beers has decided to close the Voorspoed diamond mine in the Free State, Anglo American has drawn a line in the sand for its thermal coal portfolio and emerging tin miner AfriTin is on track to meet its targets. Mining Weekly editor Martin Creamer unpacks the headlines.
Views: 39 MiningWeekly
High quality gavity concentrate lead jig separator machine
 
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Website:http://www.shichengmachine.com/ Jiangxi Shicheng Mine Machinery Factory is a professional metallurgical mineral processing machinery enterprise, who integrates production, research, sales and site tracking services into one complete unit. Over several years history, the company is dedicated in the mineral processing equipment products design and production. Now the company has accumulated rich experience in design and production.
Lithium Australia revising Sadisdorf scoping study following processing 'breakthrough'
 
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Lithium Australia NL (ASX:LIT) managing director Adrian Griffin speaks to Proactive Investors about the company's recent world first; producing lithium-ion batteries using cathode powder made from lithium-iron-phosphate material derived from mine waste using the proprietary SiLeach® process. The batteries performed on par with standard lithium carbonate batteries, and have a superior safety profile as they tend to not overheat during charging, amongst other benefits. This latest achievement demonstrates Lithium Australia's strategy of 'closing the loop' on the lithium value chain.
Getting the Blood Out of Your Cell Phone: ISS Noon Lecture with James Smith
 
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On January 20, 2016, UC Davis Associate Professor of Anthropology James Smith delivered an ISS Noon Lecture, entitled "Getting the Blood Out of Your Cellphone: Silicon Valley's Efforts to Avoid 'Conflict Materials' from the DR Congo."
Commerce Resources Corp. (TSXv: CCE) - News Release (February 2, 2011)
 
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Commerce Resources Corp. (TSXv: CCE) announced that AMEC has completed a new ational Instrument 43-101 resource estimate for the Upper Fir Tantalum - Niobium Deposit at its Blue River Project in British Columbia. The video is an introduction to the news release by InvestmentPitch.com. View the complete news release at http://www.commerceresources.com
Views: 186 CommerceResCCE
fortescue metals group iron ore beneficiation technology 2012
 
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Views: 49 Dacuk Porty
Fred Jansen: How to land on a comet
 
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As manager of the Rosetta mission, Fred Jansen was responsible for the successful 2014 landing of a probe on the comet known as 67P/Churyumov-Gerasimenko. In this fascinating and funny talk, Jansen reveals some of the intricate calculations that went into landing the Philae probe on a comet 500 million kilometers from Earth — and shares some incredible photographs taken along the way. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/talks/fred_jansen_how_to_land_on_a_comet Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
Views: 53617 TED
Ore
 
08:16
Ore
An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. The ores are extracted through mining; these are then refined (often via smelting) to extract the valuable element(s). The grade or concentration of an ore mineral, or metal, as well as its form of occurrence, will directly affect the costs associated with mining the ore. The cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a grade to be worth mining. Metal ores are generally oxides, sulfides, silicates, or "native" metals (such as native copper) that are not commonly concentrated in the Earth's crust, or "noble" metals (not usually forming compounds) such as gold. The ores must be processed to extract the metals of interest from the waste rock and from the ore minerals. Ore bodies are formed by a variety of geological processes. The process of ore formation is called ore genesis. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1074 Audiopedia
2017 October Evening Public Lecture — Global Trends in Mineral Commodity Supplies
 
01:14:56
* The U.S. is increasingly reliant on supply of mineral raw materials from other countries. * Advanced technologies are increasingly making use of nearly the entire periodic table of the elements. * Dynamic studies of critical and strategic mineral supply and demand can identify emerging potential supply risks. * The USGS - National Minerals Information Center has assumed a leading role in mineral criticality studies. ---------- Find this video and thousands more at https://usgs.gov/gallery. Stay up-to-date on USGS topics and news on Twitter, Instagram, Facebook and more at https://usgs.gov/socialmedia. DYK? The USGS.gov site is completely mobile! Ditch the desktop and browse the latest earth science on your mobile device. Go to https://usgs.gov.
Views: 1146 USGS
Lithium Australia 'closing the loop' on producing cathode powder from waste materials
 
10:55
Lithium Australia NL (ASX:LIT) managing director Adrian Griffin explains the company's innovative and integrated approach to producing the in-demand battery metal, which includes proprietary technologies for tailings processing and battery recycling. "We believe we can process waste material from other people's operations, and those operations aren't just lithium operations; there's a lot of lithium minerals contained in deposits such as tin, tantalum, and clay minerals... we've taken positions in most of the major lithium provinces around the world so that if we do a deal to recover lithium from other people's waste materials, and there's a supply chain problem with respect to that, we can then go and mine our own deposits," says Griffin.
Elon Musk - CEO of Tesla Motors and SpaceX | Entrepreneurship | Khan Academy
 
48:42
Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/entrepreneurship2/interviews-entrepreneurs/copy-of-khan-academy-living-room-chats/v/reid-hoffman-founder-of-linkedin?utm_source=YT&utm_medium=Desc&utm_campaign=entrepreneurship Entrepreneurship on Khan Academy: Personal lessons and insights from accomplished entrepreneurs are the basis of this interview series produced by the Ewing Marion Kauffman Foundation and Khan Academy. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Entrepreneurship channel: https://www.youtube.com/channel/UCHqkkPYpIb9FotyBtLWU7IQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 1360343 Khan Academy
Nuclear Power - Dr. Helen Caldicott - Visions of the Future
 
02:43:36
Dr. Helen Caldicott's statements on nuclear power are contrasted with a vision of abundant energy, exploration, and realized human potential. Music by KiloWatts: http://kilowattsmusic.com The world's most prolific anti-nuclear activist, Dr. Helen Caldicott has been featured many times by mainstream media and has testified before government panels on the subject of radiation. However, she has made many false statements. Repeatedly. Music created by KiloWatts: https://soundcloud.com/kilowatts Edited by Gordon McDowell: https://www.patreon.com/thorium Features video clips from Pandora's Promise: https://itunes.apple.com/us/movie/pandoras-promise/id675188533 Useful timecodes: 0:03:50 AP1000 (introduced) 0:04:10 Dr. Helen Caldicott (introduced) 0:07:39 Caldicott does not want China to modernize. 0:09:08 China's uses energy to create goods we buy. 0:10:52 Unleash human potential. 0:14:37 Energy for efficient resource mining (copper). 0:15:18 Energy for efficient resource recycling (steel). 0:17:37 Tyson on golden era NASA exploration. 0:20:08 Caldicott for candlelight. Candles for light. 0:20:34 Dr. James Hansen on energy & safety. 0:21:43 Caldicott cites Hansen. Hansen disagrees. 0:23:10 Tyson: Advancing a field attracts smart. 0:24:07 GM EV1 - Revolution needed. 0:25:50 Start Nuclear 101. Atoms. Fission. 0:29:34 Radiation. Geothermal. 0:34:50 Isotopes. 0:38:21 Chain reaction. 0:40:52 Uranium - Finite or renewable? 0:43:26 Nuclear waste. Fission products. Recycle. 0:50:03 Caldicott - We are not God. 0:51:43 Caldicott fearmonger spent fuel. 0:53:14 Ben Heard - Cask storage. Recycle fuel. 0:55:44 Coal ash. A legitimate waste concern. 0:58:40 Deliberately constraining energy supply. 1:05:22 Recognize limitations of solar & wind. 1:07:05 Germany burning biomass. 1:09:00 Nuclear replaced by combustion. 1:13:03 Caldicott's Global Preventive Medicine. 1:14:01 George Monbiot debates Caldicott. 1:15:07 Caldicott against energy use, lifestyle. 1:17:05 Caldicott's candles vs Penn and Teller. 1:20:22 Accustomed to uncompetitive nuclear. 1:21:08 Caldicott cites Russian Study. 1:21:47 Monbiot calls out Caldicott untruths. 1:23:26 Caldicott on nuclear = testosterone. 1:24:45 Caldicott on nuclear causing cancer. 1:31:31 Robert Stone - Facts unpersuasive. 1:33:26 President Kennedy to Moon. Lesson. 1:39:47 Aspiration vision/message needed. 1:42:03 Energy ideas the media notices. 1:45:17 Turning seawater into liquid fuels. 1:49:07 Energy as a byproduct. Trek future. 1:52:01 Energy is peace. 1:53:28 Energy to explore. Nuclear required. 2:01:26 Earth Panel. Challenges of solar. 2:03:14 Titan mission. 10 years vs 1 hour. 2:05:31 Nuclear beyond solar system. 2:08:10 Comet probe lands in shadow. 2:10:05 Elon Musk vs launch constraint. 2:13:31 Martian photosynthesis food. 2:15:36 Elon Musk. Mars solar & nuclear. 2:16:05 Europa. Tyson. James Cameron. 2:18:55 Back on Earth. 2:20:16 Clean energy cheap. Not sci-fi. 2:21:30 Shellenberger. Save nature. 2:32:25 People changing their minds. 2:33:28 Nuclear Industry. 2:36:21 Industry communications. 2:38:20 PWR status quo. 2:39:29 Advanced Reactors. Thorium. 2:41:08 People changing their minds. 2:43:12 Call to action for engineers. This video is a byproduct of THORIUM REMIX 2016: http://thoriumremix.com/
Views: 2233 Gordon McDowell
Tin ore carriers in Malaysia
 
02:07
Get the price of machines: [email protected] ,for more details, here is our skype: billchanglei123 Changlei communicates with client departments in advance and pays close attention to customers' dynamic of attracting investment to grasp customers' needs in the first time. Centralized lubrication systems achieves oiling without stopping the machine and is convenient and efficient for oiling on the road. It adapts to raw materials with moisture content higher than 8%. It has the unique two-way transfer gap technology and after the hammer is worn, the gap between the hammer and the liner becomes larger and size becomes thicker and can move the position of hammer out from central to narrow its gap between the liner and to continue using it. Demands of the industry makes crusher manufacturing industry change constantly. With the pace of development of construction of urbanization, new rural and industrialization accelerates in China, problems of high energy consumption and use efficiency is low of building industry become hinder of the efficient development of the economy. Changlei crusher follows the laws of market development and is closely in accordance with the reality and has written a glorious history. Equipment's warranty is six months with lifetime maintenance.
Views: 31 Bill Hu
William Ginell's Interview
 
01:24:10
William Ginell is a physical chemist who worked on the Manhattan Project. In this interview he describes how he became interested in chemistry and his experiences working at Columbia University and Oak Ridge, TN on the gaseous diffusion process. He reflects on the Army, living conditions, and the intense secrecy and security during the project. He also discusses his life after the war, especially his work at Brookhaven, Atomics International, and Douglas Aircraft. For a complete transcript of this interview, visit: http://manhattanprojectvoices.org/oral-histories/william-ginell
Views: 391 AtomicHeritage
Ellis Martin Report with New Age Metals' Harry Barr Lithium Update
 
12:07
Ellis Martin speaks with Harry Barr, the CEO of New Age Metals (TSX-V:NAM/OTC:NMTLF) about the company's latest hard rock lithium acquisition in Manitoba. http://www.ellismartinreport.com http://www.newagemetals.com New Age Metals is a paid sponsor of The Ellis Martin Report
Views: 67 Ellis Martin
Mining in Greenland | Wikipedia audio article
 
16:45
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Economy_of_Greenland 00:00:54 1 Historical development 00:05:10 2 Sectors of the economy 00:05:38 2.1 Governance 00:06:18 2.2 Fishing industry 00:06:55 2.3 Hunting and whaling 00:08:03 2.4 Retail 00:08:32 2.5 Mining 00:09:48 2.6 Energy 00:13:02 2.7 Tourism 00:13:43 2.8 Agriculture and forestry 00:14:50 2.9 Animal husbandry 00:16:29 3 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9395087937346476 Voice name: en-US-Wavenet-A "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= The economy of Greenland can be characterized as small, mixed and vulnerable. Greenland's economy consists of a large public sector and comprehensive foreign trade. This has resulted in an economy with periods of strong growth, considerable inflation, unemployment problems and extreme dependence on capital inflow from the Kingdom Government.GDP per capita is close to the average for European economies, but the economy is critically dependent upon substantial support from the Danish government, which supplies about half the revenues of the Self-rule Government, which in turn employs 10,307 Greenlanders out of 25,620 currently in employment (2015). Unemployment nonetheless remains high, with the rest of the economy dependent upon demand for exports of shrimp and fish.
Views: 1 wikipedia tts
Mining industry of Egypt | Wikipedia audio article
 
06:59
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Mining_industry_of_Egypt 00:01:40 1 History 00:04:40 2 Modern technology and gold exploration 00:06:46 3 See more Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9039354459480986 Voice name: en-GB-Wavenet-A "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Mining in Egypt has had a long history that goes back to predynastic times. Egypt has substantial mineral resources, including 48 million tons of tantalite (fourth largest in the world), 50 million tons of coal, and an estimated 6.7 million ounces of gold in the Eastern Desert. The total real value of minerals mined was about £E102 million (US$18.7 million) in 1986, up from £E60 million (US$11 million) in 1981. The chief minerals in terms of volume output were iron ore, phosphates, and salt. The quantities produced in 1986 were estimated at 2,048, 1,310, and 1,233 tons, respectively, compared with 2,139, 691, and 883 tons in 1981. In addition, minor amounts of asbestos (313 tons) and quartz (19 tons) were mined in 1986. Preliminary exploration in Sinai indicated the presence of zinc, tin, lead, and copper deposits. Private sector exploration and exploitation activities so far have been limited. Only recently, AngloGold Ashanti with its joint Venture Partner Thani Dubai and a Canadian listed exploration company, Alexander Nubia International have been undertaking exploration in Egypt's Eastern Desert with some success. Centamin Ltd., a mineral exploration company founded in Australia, started a massive mining project in Sukari Hill.
Views: 0 wikipedia tts
Mining industry of Ghana | Wikipedia audio article
 
47:14
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Mining_industry_of_Ghana 00:00:52 1 Economic impact 00:02:06 2 Government policies and programs 00:06:20 3 Industry structure 00:08:14 4 Commodities 00:08:23 4.1 Aluminum, bauxite, and alumina 00:10:30 4.2 Gold 00:22:49 4.3 Manganese 00:25:11 4.4 Diamond 00:30:39 4.5 Cement 00:31:20 4.6 Petroleum 00:34:48 5 Environmental impact 00:38:34 6 History 00:46:26 6.1 Accidents 00:46:58 7 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9018217069732137 Voice name: en-GB-Wavenet-B "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= The Mining industry of Ghana accounts for 5% of the country's GDP and minerals make up 37% of total exports, of which gold contributes over 90% of the total mineral exports. Thus, the main focus of Ghana's mining and minerals development industry remains focused on gold. Ghana is Africa's largest gold producer, producing 80.5 t in 2008. Ghana is also a major producer of bauxite, manganese and diamonds. Ghana has 23 large-scale mining companies producing gold, diamonds, bauxite and manganese, and, there are also over 300 registered small scale mining groups and 90 mine support service companies.Other mineral commodities produced in the country are natural gas, petroleum, salt, and silver.
Views: 25 wikipedia tts
Ore | Wikipedia audio article
 
10:23
This is an audio version of the Wikipedia Article: Ore 00:01:03 1 Ore deposits 00:01:51 1.1 Classification 00:02:11 1.1.1 Hydrothermal epigenetic deposits 00:02:40 1.1.2 Granite related hydrothermal 00:03:21 1.1.3 Magmatic deposits 00:04:08 1.1.4 Volcanic-related deposits 00:04:31 1.1.5 Metamorphically reworked deposits 00:04:57 1.1.6 Carbonatite-alkaline igneous related 00:05:20 1.1.7 Sedimentary deposits 00:05:51 1.1.8 Sedimentary hydrothermal deposits 00:06:33 1.1.9 Astrobleme-related ores 00:06:46 2 Extraction 00:08:15 3 Trade 00:09:48 4 Important ore minerals 00:09:58 5 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= An ore is an occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit. The ores are extracted from the earth through mining; they are then refined (often via smelting) to extract the valuable element, or elements. The grade or concentration of an ore mineral, or metal, as well as its form of occurrence, will directly affect the costs associated with mining the ore. The cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a grade to be worth mining. Metal ores are generally oxides, sulfides, silicates, or native metals (such as native copper) that are not commonly concentrated in the Earth's crust, or noble metals (not usually forming compounds) such as gold. The ores must be processed to extract the elements of interest from the waste rock and from the ore minerals. Ore bodies are formed by a variety of geological processes. The process of ore formation is called ore genesis.
Views: 12 wikipedia tts
Energy in Greenland | Wikipedia audio article
 
16:14
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Economy_of_Greenland 00:00:52 1 Historical development 00:05:01 2 Sectors of the economy 00:05:29 2.1 Governance 00:06:08 2.2 Fishing industry 00:06:44 2.3 Hunting and whaling 00:07:50 2.4 Retail 00:08:18 2.5 Mining 00:09:31 2.6 Energy 00:12:38 2.7 Tourism 00:13:18 2.8 Agriculture and forestry 00:14:23 2.9 Animal husbandry 00:15:59 3 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9598907367582059 Voice name: en-US-Wavenet-E "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= The economy of Greenland can be characterized as small, mixed and vulnerable. Greenland's economy consists of a large public sector and comprehensive foreign trade. This has resulted in an economy with periods of strong growth, considerable inflation, unemployment problems and extreme dependence on capital inflow from the Kingdom Government.GDP per capita is close to the average for European economies, but the economy is critically dependent upon substantial support from the Danish government, which supplies about half the revenues of the Self-rule Government, which in turn employs 10,307 Greenlanders out of 25,620 currently in employment (2015). Unemployment nonetheless remains high, with the rest of the economy dependent upon demand for exports of shrimp and fish.
Views: 0 wikipedia tts
Agriculture in Greenland | Wikipedia audio article
 
18:32
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Economy_of_Greenland 00:01:01 1 Historical development 00:05:46 2 Sectors of the economy 00:06:16 2.1 Governance 00:07:00 2.2 Fishing industry 00:07:41 2.3 Hunting and whaling 00:08:56 2.4 Retail 00:09:28 2.5 Mining 00:10:52 2.6 Energy 00:14:28 2.7 Tourism 00:15:13 2.8 Agriculture and forestry 00:16:27 2.9 Animal husbandry 00:18:16 3 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.8207815084741931 Voice name: en-US-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= The economy of Greenland can be characterized as small, mixed and vulnerable. Greenland's economy consists of a large public sector and comprehensive foreign trade. This has resulted in an economy with periods of strong growth, considerable inflation, unemployment problems and extreme dependence on capital inflow from the Kingdom Government.GDP per capita is close to the average for European economies, but the economy is critically dependent upon substantial support from the Danish government, which supplies about half the revenues of the Self-rule Government, which in turn employs 10,307 Greenlanders out of 25,620 currently in employment (2015). Unemployment nonetheless remains high, with the rest of the economy dependent upon demand for exports of shrimp and fish.
Views: 4 wikipedia tts
mining cassiterite in brazil
 
06:06
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Views: 22 Lillie8 Rogers115