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994K Unveiling
 
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The all new Cat® 994K Large Wheel Loader is the largest loader Cat offers, built on nearly 25 years of 994 history and experience. Watch as the 994K is unveiled for customers at the Tinaja Hills Training & Demonstration Center in Arizona on November 11, 2014.
Views: 1407112 Caterpillar Global Mining
Mining industry | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Mining 00:01:48 1 History 00:01:57 1.1 Prehistoric mining 00:03:13 1.2 Ancient Egypt 00:04:23 1.3 Ancient Greek and Roman mining 00:08:00 1.4 Medieval Europe 00:12:01 1.5 Classical Philippine civilization 00:13:12 1.6 The Americas 00:16:14 1.7 Modern period 00:17:49 2 Mine development and lifecycle 00:20:32 3 Mining techniques 00:22:00 3.1 Surface mining 00:23:03 3.2 Underground mining 00:24:32 3.3 Highwall mining 00:26:16 4 Machines 00:27:38 5 Processing 00:30:22 6 Environmental effects 00:34:25 6.1 Waste 00:36:53 6.2 Renewable energy and mining 00:37:36 7 Mining industry 00:41:45 7.1 Corporate classifications 00:42:33 7.2 Regulation and governance 00:46:31 7.3 World Bank 00:48:38 8 Safety 00:52:16 9 Records 00:54:44 10 Metal reserves and recycling 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: 0.998962699879125 Voice name: en-US-Wavenet-C "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an orebody, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Mining of stones and metal has been a human activity since pre-historic times. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation of the land after the mine is closed. De Re Metallica, Georgius Agricola, 1550, Book I, Para. 1Mining operations usually create a negative environmental impact, both during the mining activity and after the mine has closed. Hence, most of the world's nations have passed regulations to decrease the impact. Work safety has long been a concern as well, and modern practices have significantly improved safety in mines. Levels of metals recycling are generally low. Unless future end-of-life recycling rates are stepped up, some rare metals may become unavailable for use in a variety of consumer products. Due to the low recycling rates, some landfills now contain higher concentrations of metal than mines themselves.
Views: 58 wikipedia tts
Mining | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Mining 00:01:51 1 History 00:02:00 1.1 Prehistoric mining 00:03:18 1.2 Ancient Egypt 00:04:31 1.3 Ancient Greek and Roman mining 00:08:15 1.4 Medieval Europe 00:12:23 1.5 Classical Philippine civilization 00:13:36 1.6 The Americas 00:16:44 1.7 Modern period 00:18:22 2 Mine development and life cycle 00:21:09 3 Mining techniques 00:22:39 3.1 Surface mining 00:23:44 3.2 Underground mining 00:25:16 3.3 Highwall mining 00:27:02 4 Machines 00:28:27 5 Processing 00:31:18 6 Environmental effects 00:35:27 6.1 Waste 00:38:00 6.2 Renewable energy and mining 00:38:45 7 Mining industry 00:43:04 7.1 Corporate classifications 00:43:54 7.2 Regulation and governance 00:47:59 7.3 World Bank 00:50:07 8 Safety 00:53:52 9 Records 00:56:26 10 Metal reserves and recycling 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: 0.9838512602070575 Voice name: en-GB-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Mining of stones and metal has been a human activity since pre-historic times. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation of the land after the mine is closed. De Re Metallica, Georgius Agricola, 1550, Book I, Para. 1Mining operations usually create a negative environmental impact, both during the mining activity and after the mine has closed. Hence, most of the world's nations have passed regulations to decrease the impact. Work safety has long been a concern as well, and modern practices have significantly improved safety in mines. Levels of metals recycling are generally low. Unless future end-of-life recycling rates are stepped up, some rare metals may become unavailable for use in a variety of consumer products. Due to the low recycling rates, some landfills now contain higher concentrations of metal than mines themselves.
Views: 17 wikipedia tts