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Give to the Max 2013: Can Sulfide Mining be Funny?
 
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Your gift keeps the Boundary Waters wild for generations to come: http://www.friends-bwca.org/donate We protect the Boundary Waters from threats like sulfide mining right up to the edge of the wilderness. But that takes more than sound science, it also requires creative advocacy. Here's one example - our collaboration with the Theater of Public Policy.
Views: 380 Aaron Klemz
Acidophiles in acid mine drainage - Video Learning - WizScience.com
 
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The outflow of acidic liquids and other pollutants from mines is often catalysed by acid-loving microorganisms; these are the "acidophiles in acid mine drainage". Acidophiles are not just present in exotic environments such as Yellowstone National Park or deep-sea hydrothermal vents. Genera such as Acidithiobacillus and Leptospirillum bacteria, and Thermoplasmatales archaea, are present in syntrophic relationships in the more mundane environments of concrete sewer pipes and implicated in the heavy-metal-containing, sulfurous waters of rivers such as the Rheidol. Such microorganisms are responsible for the phenomenon of acid mine drainage and thus are important both economically and from a conservation perspective. Control of these acidophiles and their harnessing for industrial biotechnology shows their effect need not be entirely negative. The use of acidophilic organisms in mining is a new technique for extracting trace metals through bioleaching, and offers solutions for the phenomenon of acid mine drainage in mining spoils. Upon exposure to oxygen and water , metal sulfides undergo oxidation to produce metal-rich acidic effluent. If the pH is low enough to overcome the natural buffering capacity of the surrounding rocks , the surrounding area may become acidic, as well as contaminated with high levels of heavy metals. Though acidophiles have an important place in the iron and sulfur biogeochemical cycles, strongly acidic environments are overwhelmingly anthropogenic in cause, primarily created at the cessation of mining operations where sulfide minerals, such as pyrite , are present. Wiz Science™ is "the" learning channel for children and all ages. SUBSCRIBE TODAY Disclaimer: This video is for your information only. The author or publisher does not guarantee the accuracy of the content presented in this video. USE AT YOUR OWN RISK. Background Music: "The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library. This video uses material/images from https://en.wikipedia.org/wiki/Acidophiles+in+acid+mine+drainage, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . To reuse/adapt the content in your own work, you must comply with the license terms.
Views: 1456 Wiz Science™
Why Sand Mining is a Global Environmental Crisis
 
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Love the beach? Then get to them before sand mining destroys them all. Watch more stories like this at: https://insh.world Check out more from INSH: Top 10 Women's Jobs That No Longer Exist https://www.youtube.com/watch?v=i5TJJoIzSWg This Norwegian Town Needs Giant Mirrors to See the Sun https://www.youtube.com/watch?v=jep1oPm1fMk About INSH: We tell the world’s greatest underknown stories and facts about history, geography and world culture. Our stories are true, but either unknown or underknown. We aim to bring the marvel of these narratives, images or facts to your consciousness and hope that these inspiring tales make us look to the skies rather than to the ground. INSH is an educational video company producing snackable, short-form videos. Visit our official site at: https://insh.world Follow us on Twitter: https://twitter.com/INSH Like us on Facebook: https://www.facebook.com/INSH/ or follow on Instagram: instagram.com/interestingsh
Views: 232 INSH
Should we be mining the sea bed for minerals
 
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British scientists have announced what they are calling an "astonishing" discovery deep in the Atlantic Ocean. They found that an underwater mountain near the Canary Islands holds some of the richest deposits of rare minerals anywhere on Earth.
Views: 180 T - images
Nanotechnology : Dr. L. Petrik - Acid Mine Water.wmv
 
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A five-part series introducing ground-breaking innovation in Nanotechnology in South Africa, produced for the Sci-Bono Discovery Centre in Johannesburg. (Disclaimer: Stonefish Studios accepts no liability for the use of any images supplied by Speakers, Scientists, or the Sci_Bono Discovery Centre, in the production of these podcasts). See also http://www.stonefishstudios.com, and view more from t\his Director at http://www.livestream.com/stonefishstudiossouthafrica
Views: 159 Rusty Stanley
Latin America EPC Summit | Chili's Copper Mining Solutions | GE Mining Solutions
 
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Chili's copper mining challenges and solutions discussed at the Latin America EPC Summit on March 24, 2012. Take a moment to like, add to your favorites or share with a friend. http://www.ge.com/mining Chili mining faces power generation and distribution along with water management and productivity. GE Mining Solutions can provide the technology of water desalination and pumping used for off-shore oil rigs to pump water 2000 meters or even 4000 meters for mineral mining in the Chili mountains.
Views: 282 GE Reports
Why don't oil and water mix? - John Pollard
 
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View full lesson: http://ed.ted.com/lessons/why-don-t-oil-and-water-mix-john-pollard Salt dissolves in water; oil does not. But why? You can think of that glass of water as a big, bumpin' dance party where the water molecules are always switching dance partners -- and they'd much rather dance with a salt ion. John Pollard explains how two chemistry principles, energetics and entropy, rule the dance floor. Lesson by John Pollard, animation by Andrew Foerster.
Views: 790900 TED-Ed
Module 4: Introduction to Aerosols
 
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The objectives for this module are that, by the end, learners should be able to (1) define "aerosol" and related terms, (2) interpret summary properties of particle size distributions, (3) predict the relationship between aerosol source and particle size, and (4) describe approaches to measuring airborne particles
Views: 10516 METPHAST Program
PubTalk 7/2018 - Water
 
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Title: Iron Mountain, California: An Extreme Acid Mine Drainage Environment * "The world's most acid water" — explaining negative pH * Colorful mineral salts that store metals and acidity in underground mine workings * Microbial iron oxidation and formation of pipe scale in the water treatment system * Challenges and successes of environmental remediation by USEPA's Superfund program
Views: 784 USGS
"Treasure Hunting" ~ A documentary against gold mining (French Subtitles)
 
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In greek with french subtitles. "Chasse au tresor", un documentaire contre les mines d'or a Halkidiki, au nord de la Grece. Titre : "Chasse au trésor" (1h39'), 2007 "Chasse au trésor", est un film collectif, "un film d'investigation sur l'extraction de l'or au nord de Halkidiki", selon les réalisateurs. Il a était fini en 2007, et retrace la longue lutte des habitants de certains villages de la région de Halkidiki, au nord de la Grèce, qui s'opposent à la construction d'une mine d'or en plein milieu d'une des plus belles foret du pays par une compagnie canadienne. Le documentaire fini avec la victoire des habitants du village de Olympiada et le commencement de la lutte des habitants de Megali Panagia et Ierissos contre le lancement d'un nouveau plan d'extraction près de leurs villages. Une lutte qu'aujourd'hui, 6 ans après, est devenu une des luttes principales qui se déroulent dans le territoire grecque. La traduction et le sous-titrage sont le fruit d'un effort collectif, qui n'aurai jamais eu lieux sans le dynamisme et la joyeuse folie de notre chère amie Clémentine, qui nous a quitté soudainement cette année. Elle sera toujours entre nous, à travers la vie qu'on donne à tout ce qu'elle a fait vivre. Bon voyage.
Views: 6398 Perseus999
Urgent: Join tribes, others at Sacred Eagle Rock in Michigan to prevent Kennecott Acid Mine
 
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American Indians and non-natives are encouraged to visit the northern Michigan campsite that is blocking a sulfide mine - as in sulfuric acid - from being built under Sacred Eagle Rock. Levi Tadgerson, an Anishinaabe man who loves and respects the environment, narrates this video that invites everyone to join the encampment at the base of Eagle Rock - the sooner the better because a confrontation between mine owners, the police and those protecting Sacred Eagle Rock could happen at any moment. Tadgerson is a 22-year-old Northern Michigan University senior and member of Bay Mills Indian Community. In the video, you will see the many amazing things happening to protect Sacred Eagle Rock including an appearance by popular American Indian singer/songwriter Elder Bobby "Bullet" St. Germaine of Iron River, MI - an elder of the Lac Du Flambeau tribe. He sings and leads a thank you drum under the shadow of Sacred Eagle Rock. This video was shot on 4/29/2010. Background Eagle Rock has been a sacred place to hold ceremonies since the Ojibwa tribe was created and was seeded to the Keweenaw Bay Indian Community (KBIC) under treaties with the American government. The multi-tribe encampment, that could be raided by mine guards and police at any moment, is blocking the Eagle Mine Project by international mining giant Kennecott Minerals and its parent company Rio Tinto. KBIC member Glen Bressette Jr., 38, of Harvey, Michigan brought a rare legally-permitted Eagle has been received to award feathers to those who honor their tribes by protecting sacred Eagle Rock and other honorable actions. Dozens of people from numerous tribes have spent days at the camp - and many others have brought supplies to the remote site on dirt roads about an hour from any city. The state of Michigan has claimed ownership to the land - but the lease with Kennecott only takes effect when the mine has secured all permits. Opponents say the mine must still get a federal EPA groundwater permit - but under a technicality the mine owners say they do not need the permit and recently put up No Trespassing signs. The American Indians rushed to the sight after Kennecott ordered the arrest of longtime mine opponent Cynthia Pryor of Big Bay, MI on April 20, 2010. Pryor was out for her usual walk on the Yellow Dog Plains when she spotted a bulldozer - and refused to leave saying the mine still had an EPA permit pending. Pryor is a member of the Yellow Dog Watershed Preserve. Among the Ojibwa tribes from Michigan and Wisconsin on sight are KBIC, Lac Du Flambeau, and Bay Mills Indian Community. As of April 30th, the mine guards has not confronted the campers - but the day before ordered no still or video cameras are allowed. That has campers worried about why what they do not want videotaped or documented - thus nerves are high. When a reporter arrived a short time later - the campers allowed him on the sight and this story was videotaped. For more info call 1-906-401-0109 The video was produced by the nonprofit Cedar Tree Institute in Marquette, MI, which has founded numerous youth, faith and Native American related environment projects. Bobby "Bullet" St. Germaine of Iron River, MI - a member of the Lac Du Flambeau tribe in Wisconsin. He is a well-know longtime native singer http://www.bobbybullet.com Petition to support Cynthia Pryor http://www.savethewildup.org/jailed/petition Yellow Dog Watershed Preserve http://www.yellowdogwatershed.org/blog Save the Wild U.P. (SWUP) http://www.savethewildup.org SWUP Facebook Page http://www.facebook.com/group.php?gid=20079015072 SWUP Causes on Facebook http://www.causes.com/causes/46130?recruiter_id=60587135 Stand for the Land blog http://standfortheland.com Eagle Mine Concerns Raised at Rio Tinto Meeting http://headwatersnews.net/mining-article/audio-rio-tintos-annual-general-meeting Upper Peninsula Mine Threatens Sacred Tribal Rights http://headwatersnews.net/mining-blog/upper-peninsula-mine-threatens-sacred-tribal-rights Rio Tinto Stomps on Indigenous Rights in Upper Peninsula of Michigan http://headwatersnews.net/mining-blog/rio-tinto-stomps-out-indigenous-rights-in-upper-michigan Kennecott Minerals parent company Rio Tinto accused of crimes http://headwatersnews.net/mining-article/uk-serious-fraud-office-to-investigate-rio-tinto http://headwatersnews.net/mining-article/rio-tinto-employees-charged-with-industrial-espionage-and-bribery http://headwatersnews.net/mining-article/rio-tinto-pleads-guilty-to-breach-of-mining-management-act-again-2 Mining Journal Native American activists protest at Eagle Rock 4/25/10 http://miningjournal.net/page/content.detail/id/543341.html Granholm, DEQ decision condemned by U.P. http://www.ausableanglers.org/files/members/RIVERWATCH48.pdf State of Michigan Info Eagle Mine Project http://www.michigan.gov/deq/0,1607,7-135-3311_4111_18442-130551--,00.html Nonprofit Cedar Tree Institute http://www.CedarTreeInstitute.org
Views: 1976 YOOPERNEWSMAN
How to Recover Silver from X ray Films
 
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We provide training for Instant Silver Recovery from Waste Fixer/Hypo Solution X-ray film and all other kinds of photographic waste material and electronic items without any machine in two hours only. Ours is a pollution free chemical process.
Views: 68027 GoldSilverRecovery
Rio Tinto, Spain (Red River)
 
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The Río Tinto (red river) is a river in southwestern Spain that originates in the Sierra Morena mountains of Andalusia. It flows generally south-southwest, reaching the Gulf of Cádiz at Huelva. This unearthly, reddish river in southwestern Spain is unlike any you've ever seen before. The water gets its coloration from iron dissolved in the water, and is notable for being extremely acidic. This may not sound like a suitable place to find life, but living in the bizarre waters of Rio Tinto are extremophile aerobic microorganisms that feed on the iron and sulphide minerals plentiful in the river. Since ancient times, a site along the river has been mined for copper, silver, gold, and other minerals. In approximately 3,000 BC, Iberians and Tartessians began mining the site, followed by the Phoenicians, Greeks, Romans, Visigoths, and Moors. After a period of abandonment, the mines were rediscovered in 1556 and the Spanish government began operating them once again in 1724. As a possible result of the mining, Río Tinto is notable for being very acidic (pH 2) and its deep reddish hue is due to iron dissolved in the water. Acid mine drainage from the mines leads to severe environmental problems due to the heavy metal concentrations in the river. In 1873, Rio Tinto Company was formed to operate the mines; by the end of the 20th century it had become one of the world's largest multinational mining companies, although it no longer controls the Rio Tinto mines; these are now owned by EMED Mining plc. Scientists now believe that these conditions could be the perfect analogue to what happens when liquid water flows on other planets or moons, such as on Mars or perhaps on Jupiter's moon, Europa. If life can survive under these conditions here on Earth, then it's possible that it also has survived elsewhere, making Rio Tinto an important case study into astrobiology. In fact, data retrieved from NASA's Opportunity rover has shown that similar conditions to those at Rio Tinto have existed on Mars in the past. Subsribe on Happy Traveler - https://www.youtube.com/channel/UCB7ViK_fZPd3-3XzIgQKWYg?sub_confirmation=1
Views: 10625 Happy Traveler
Coal: Engine of Change
 
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This 60-minute documentary interweaves the development of modern life with innovations in energy technologies in Great Britain and the United States. Coal played a major role from the start, shaping the stage with other fossil fuels by the end of the twentieth century. What will happen in the twenty-first century as we factor addressing concerns about human influence on global climate with the ever-increasing demand for energy and all it provides? Includes expert interviews from Sacramento, CA; Gainesville, FL; Lowell, MA; Minneapolis, MN; New York City, NY; Beulah and Grand Forks, ND; Pittsburgh and Rankin, PA; Dallas and Houston, TX; Arlington, VA; White Salmon, WA; Estavan, SK, Canada; United Kingdom; France; and Sweden.
Views: 643 Prairie Public
Groundwater in 16 States found to be contaminated by uranium
 
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Groundwater in 16 States found to be contaminated by uranium
Views: 715 ETV Andhra Pradesh
Petroleum industry in Nigeria
 
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The petroleum industry in Nigeria, Africa is the largest industry and main generator of GDP in the continent's most populous nation. In February 2013, the Nigerian Association of Chambers of Commerce, Industry, Mines and Agriculture (NACCIMA) claimed that the oil sector of the country “is killing the economy”. NACCIMA's Director General Dr John Isemede said the oil sector is affecting businesses in the country negatively by failing to add real value to them. He said the oil sector has caused substantial decline in agricultural exports, which began in the mid-1960s and continued to date. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 686 Audiopedia
Lecture 16 - Sources of air pollution
 
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Lecture Series on Environmental Air Pollution by Prof. Mukesh Sharma , Department of Civil Engineering IIT Kanpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 36095 nptelhrd
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: 19 wikipedia tts
Viajando Al Centro De La Tierra! DOCUMENTALES DISCOVERY CHANNEL,DOCU
 
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Viajando Al Centro De La Tierra! - DOCUMENTAL,VIDEO,2017,DOCUMENTALES DISCOVERY CHANNEL,DOCUMENTAL 👅 SUSCRÍBETE https://goo.gl/PpDqDx 👍 😜 👆 Viajando Al Centro De La Tierra! - DOCUMENTAL,VIDEO,2017,DOCUMENTALES DISCOVERY CHANNEL,DOCUMENTAL 👍 DALE PULGAR HACIA ARRIBA 👍ツ Viajando Al Centro De La Tierra! - DOCUMENTAL,VIDEO,2017,DOCUMENTALES DISCOVERY CHANNEL,DOCUMENTAL 🗣 DEJEN SUS COMENTARIOS 💭 Viajando Al Centro De La Tierra! - DOCUMENTAL,VIDEO,2017,DOCUMENTALES DISCOVERY CHANNEL,DOCUMENTAL Viajando Al Centro De La Tierra! - DOCUMENTAL,VIDEO,2017,DOCUMENTALES DISCOVERY CHANNEL,DOCUMENTAL DOCUMENTALES, documentales 2016, documentales interesantes, top documentales, documentales nuevos, documentales español, documentales en español, documentales completos, national geographic documentales, national geographic, discovery documentales, discovery, discovery channel documentales, discovery channel, documentales latino, documentales online, documentales national geographic español, documentales en español completos, documentales gratis, documentales youtube,documental, documental de discovery channel en español, documental de, documental español, documental completo, documental historia, documental guerra, documental 2016, documental discovery channel, documental national geographic, documental history channel, documental national geographic latino, documentales de history channel en español latino, documental national geographic animales español, DOCUMENTALES, documentales 2016, documentales interesantes, top documentales, documentales nuevos, documentales español, documentales en español, documentales completos, national geographic documentales, national geographic, discovery documentales, discovery, discovery channel documentales, discovery channel, documentales latino, documentales online, documentales national geographic español, documentales en español completos, documentales gratis, documentales youtube,documental, documental de discovery channel en español, documental de, documental español, documental completo, documental historia, documental guerra, documental 2016, documental discovery channel, documental national geographic, documental history channel, documental national geographic latino, documentales de history channel en español latino, documental national geographic animales español, DOCUMENTALES, documentales 2016, documentales interesantes, top documentales, documentales nuevos, documentales español, documentales en español, documentales completos, national geographic documentales, national geographic, discovery documentales, discovery, discovery channel documentales, discovery channel, documentales latino, documentales online, documentales national geographic español, documentales en español completos, documentales gratis, documentales youtube,documental, documental de discovery channel en español, documental de, documental español, documental completo, documental historia, documental guerra, documental 2016, documental discovery channel, documental national geographic, documental history channel, documental national geographic latino, documentales de history channel en español latino, documental national geographic animales español, #Documental#Documentales#MejoresDocumentales#DocumentalesEnEspañol#Documentales CompletosEnEspañol#DocumentalesInteresantes#Video#Videos -~-~~-~~~-~~-~- Please watch: "BATALLAS EPICAS DE LA HISTORIA,MIOSÉS,DOCUMENTALES GUERRA,DOCUMENTALES DOCUMENTAL,BIBLIA DOCUMENTAL" https://www.youtube.com/watch?v=AtzkQ0H-tJU -~-~~-~~~-~~-~-
Views: 953949 DOCUMENTALES EN ESPAÑOL
health alert(sulfur dioxide poison) 1 Bedroom apartment windber PA $340 612 cherry st
 
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Photo image of only inhabitable room of 3 during winter months **Health alert**"1 bedroom, 1 bath, laundry room, off street parking, $340/mo plus security deposit ($400/mo with refrigerator & stove) utilities not included. No pets call" This postings purpose is a health alert to individuals seeking to rent the above noted who may suffer from a respiratory illness (asthma, COPD) or chronic sinusitis http://www.atsdr.cdc.gov/toxfaqs/TF.asp?id=252&tid=46 Landlords typically are required to inform tenants of circumstances that would make an apartment uninhabitable whereas the apartment in question has an air quality control issue stemming from its locality within Windber PA.http://www.city-data.com/city/Windber-Pennsylvania.html The residence is located on a mountain side above Windber which is situated within a valley surrounded by mountainous terrain. Windber is known for its coal mines situated nearby and housing in the valley utilizing coal as a heating source. Windber per city data has a sulfur dioxide level 2 times higher than the national level as measured in ppb (sulfur dioxide is related to hydrogen sulfide (rotten egg odor) and sulfuric acid in batteries). Sulfur dioxide levels reach toxicity at 100 ppb. Sulfur dioxide is considered an irritant to air passages in which so2 aspired becomes sulfide which can be measured in urine or blood if exposed. For anyone considering renting the apartment with above noted health situations obtaining an agreement to have the air quality tested by the land lord (Dennis Hoffman,owner) by the PA Environmental Protection Agency(Steve Hepler) contact number 412.442.4170 through the Allegheny Environmental Health prior to move in date and/or signing the agreement. The sulfur level increases on cold windy days during the heating season-2 rooms within the apartment become saturated with sulfur with the doors closed making them uninhabitable for sleeping purposes. The owner denies the existence of an odor although those acclimated to such odors are less likely to detect due to the olfactory system. The lease agreement for the apartment is monthly although the tenant will lose his/her security deposit if the apartment is vacated prior to one year for health/environmental conditions if he/she chooses to do so. One important tenant right owner apparently is not aware of is the right to privacy in that on several occasions he or someone in his family enters without notice or scheduling an appropriate time."You have the right to enjoy your property and not have your landlord interfere with that enjoyment unless it is necessary. Pennsylvania tenant rights allow landlords to enter a dwelling only for repairs or inspections, and only after providing reasonable notice. Your landlord may enter your apartment without violating your PA tenant rights if emergency repairs are needed and giving notice would lead to further damage to possessions or danger to tenants." http://real-estate.laws.com/pennsylvania-landlord-tenant-law
Views: 82 Patrick Engle
CWM Foamy Discharge
 
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Buffalo Niagara RIVERKEEPER Riverwatch team found this mysterious foam in the Niagara River that had been discharged from a toxic waste facility.
Views: 179 BfloNiagaraRvrkpr
Mod-01 Lec-02 Lecture-02-Brief History of Non-ferrous Metal (Contd.)
 
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Non-ferrous Extractive Metallurgy by Prof.H.S. Ray,Department of Metallurgical & Materials Engineering,IIT Kharagpur.For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 4550 nptelhrd
Carbon Cycle in Hindi कार्बन चक्र Educational Video for Students
 
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For more science videos,visit http://www.makemegenius.com The carbon cycle is the cycle by which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere of the Earth.In short,the carbon cycle is a complex series of processes through which all the carbon atoms; in existence; rotate.
Views: 60672 MakeMeGeniusIndia
Skip Sandman at Lake Avenue Idle No More Duluth, MN January 11th, 2013
 
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This is a slightly revised version of my WGZS-FM interview with Skip Sandman during the Idle No More Jingle Dress, Round Dance demonstration in Duluth, MN on January 11th, 2013. I provided a little snippet of video at the beginning that provides important context. Here are drummers and dancers on four corners of Lake Avenue and Superior Street on a busy Friday. So the busiest intersection in the heart of the city on one of the busiest days. Skip Sandman talks very eloquently about the history and beliefs about this symbolic, spiritual action in the video. I cannot believe that I was able to get such clear images of him on my little point-and-shoot $60 Fujifilm camera. Special thanks to Ivy Vainio for releasing some of her wonderful images of the event to be used in this video.
Views: 170 JP Rennquist
Dustin Mulvaney, Exploring Tensions between Solar Innovation & Environmental Justice, 110117, GT8-1
 
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There are emerging tensions between solar innovation and environmental justice. Photovoltaic (PV) manufacturing processes involve hazardous chemicals similar to those found in the electronics industry, where impacts such as groundwater contamination, worker exposures to chemicals, and other air and water emissions overlap with environmental inequality. In the US, cadmium-based thin-film PV was financed with support from the American Recovery and Reinvestment Act producing new political ecological configurations of energy procurement and generation, linking Malaysian thin film PV fabs to public lands in the US desert southwest. By integrating traditions in global commodity chains, political ecology, and science and technology studies, this research shows how life cycle assessment was used to shape the debate about cadmium pollution from thin-film PV. As metrics have the power to obscure environmental injustice, the findings call for humility when interpreting life cycle assessment.
What is Black Salt | Health Benefits of Black Salt
 
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Black Salt Benefits: Elixir for Skin, Hair and Body. Black salt, A type of rock sat, composed largely of sodium chloride with several other components lending the salt its color and smell. Black salt benefits are plenty, and it acts as a cooling spice and recommended as a treatment for many health issues. It is very popular in India, Middle East, France, Japan and Spain. It’s also called as ‘Black lava salt’, ‘kala namak’ salt or ‘sanchal’ and is a type of volcanic rock salt. It’s commonly used in Asian countries surrounding the Himalayan Mountains like India and Pakistan. It has been used for hundreds of years as traditional medicine, for cooking and as a beauty aid ► SUBSCRIBE our channel: https://goo.gl/5F04NY 💋 G+:https://goo.gl/lQsL5w Twitter: https://goo.gl/lQDTlX 💋Pinterest: https://goo.gl/EZLI5T ► If there are any copyright issues with any videos posted here i will remove them. ► Thanks for watching! 💋Please watch: 💋Health :https://goo.gl/x3JCp9
Views: 30364 Useful info
Geoengineering Animation
 
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This is for my English 102 pubic turn.
Views: 172 Nathan Vance
GOLD - WikiVidi Documentary
 
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Gold is a chemical element with symbol Au and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the native element silver and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium . Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars, and to have been present in the dust from which the Solar System formed. Because the Earth was molten when it was formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most of the gold that is in the Eart... http://www.wikividi.com ____________________________________ Shortcuts to chapters: 00:03:50: Characteristics 00:05:15: Color 00:06:53: Isotopes 00:08:36: Synthesis 00:10:58: Chemistry 00:15:03: Rare oxidation states 00:17:08: Occurrence 00:22:22: Seawater 00:24:09: History 00:31:41: Etymology 00:32:23: Culture 00:34:36: Mining and prospecting 00:38:24: Extraction and refining 00:39:56: Consumption 00:40:40: Pollution 00:42:56: Monetary use 00:49:01: Price 00:50:03: History 00:54:29: Jewelry 00:56:31: Electronics 00:59:30: Medicine ____________________________________ Copyright WikiVidi. Licensed under Creative Commons. Wikipedia link: https://en.wikipedia.org/wiki/Gold
Wild rice water quality sulfate standard debated on House Floor
 
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HF3280 would nullify the existing wild rice water quality sulfate standard and require the Minnesota Pollution Control Agency (MPCA) to begin a new rulemaking process if the agency moved forward with adoption of a new standard. * Connect with House Public Information Services: www.house.mn/hinfo/hinfo.asp * Find Minnesota House of Representatives news and updates at Session Daily: www.house.mn/sessiondaily/ *Connect with the Minnesota House of Representatives: www.house.mn
Views: 100 MNHouseInfo
Nitrogen Cycle, The Nitrogen Cycle Mineral Nutrition in Plants - in hindi
 
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Nitrogen Cycle The Nitrogen Cycle Mineral Nutrition in Plants - Nitrogen Metabolism - Nitrogen Cycle नायट्रोजन सायकल क्या है? | mpsc upsc videos, mpsc science, science for competitive exam nitrogen cycle explanation nitrogen cycle diagram nitrogen cycle steps simple nitrogen cycle the nitrogen cycle definition nitrogen cycle NITROGEN IN HINDI WHAT IS NITROGEN DEFINE NITROGEN nitrogen cycle meaning nitrogen reactions
Views: 67509 Creators 360
House Floor Session  4/23/18
 
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CALENDAR FOR THE DAY. 12:10 - HF3389 (Scott) Child support modification presumptions modified. 15:29 - HF3833 (Schomacker) Financial exploitation protections provided for older and vulnerable adults. 26:16 - HF3280 (Lueck) Wild rice water findings established and listing authorized, application of water quality standards nullified and restricted, report required, and money appropriated. 1:47:08 - HF817 (Loonan) Interference or attempted interference with point-of-sale terminals, gas pump dispensers, and automated teller machines crime established. Runs 1 hour, 54 minutes. * Connect with House Public Information Services: www.house.mn/hinfo/hinfo.asp * Find Minnesota House of Representatives news and updates at Session Daily: www.house.mn/sessiondaily/ *Connect with the Minnesota House of Representatives: www.house.mn
Views: 349 MNHouseInfo
Bituminous coal
 
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Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but of poorer quality than anthracite. Formation is usually the result of high pressure being exerted on lignite. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. These distinctive sequences, which are classified according to either "dull, bright-banded" or "bright, dull-banded", is how bituminous coals are stratigraphically identified. Bituminous coal is an organic sedimentary rock formed by diagenetic and sub metamorphic compression of peat bog material. Its primary constituents are macerals: vitrinite, and liptinite. The carbon content of bituminous coal is around 60-80%; the rest is composed of water, air, hydrogen, and sulphur, which have not been driven off from the macerals. Bank density is approximately 1346 kg/m³. Bulk density typically runs to 833 kg/m³. The heat content of bituminous coal ranges from 24 to 35 MJ/kg on a moist, mineral-matter-free basis. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 3018 Audiopedia
Sulfur cycle
 
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The sulfur cycle is the collection of processes by which sulfur moves to and from minerals (including the waterways) and living systems. Such biogeochemical cycles are important in geology because they affect many minerals. Biogeochemical cycles are also important for life because sulfur is an essential element, being a constituent of many proteins and cofactors. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 3599 Audiopedia
Aluminium oxide
 
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Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide. It is commonly called alumina, and may also be called aloxide, aloxite, or alundum depending on particular forms or applications. It commonly occurs in its crystalline polymorphic phase α-Al2O3, in which it comprises the mineral corundum, varieties of which form the precious gems ruby and sapphire. Al2O3 is significant in its use to produce aluminium metal, as an abrasive owing to its hardness, and as a refractory material owing to its high melting point. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 5997 Audiopedia
Tin
 
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Tin
Tin is a chemical element with symbol Sn (for Latin: stannum) and atomic number 50. It is a main group metal in group 14 of the periodic table. Tin shows chemical similarity to both neighboring group-14 elements, germanium and lead, and has two possible oxidation states, +2 and the slightly more stable +4. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table. Tin is obtained chiefly from the mineral cassiterite, where it occurs as tin dioxide, SnO2. This silvery, malleable other metal is not easily oxidized in air and is used to coat other metals to prevent corrosion. The first alloy, used in large scale since 3000 BC, was bronze, an alloy of tin and copper. After 600 BC pure metallic tin was produced. Pewter, which is an alloy of 85--90% tin with the remainder commonly consisting of copper, antimony and lead, was used for flatware from the Bronze Age until the 20th century. In modern times tin is used in many alloys, most notably tin/lead soft solders, typically containing 60% or more of tin. Another large application for tin is corrosion-resistant tin plating of steel. Because of its low toxicity, tin-plated metal is also used for food packaging, giving the name to tin cans, which are made mostly of steel. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1224 Audiopedia
Activated carbon
 
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Activated carbon, also called activated charcoal, activated coal, or carbo activatus, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions. Activated is sometimes substituted with active. Due to its high degree of microporosity, just one gram of activated carbon has a surface area in excess of 500 m2, as determined by gas adsorption. An activation level sufficient for useful application may be attained solely from high surface area; however, further chemical treatment often enhances adsorption properties. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 41230 Audiopedia
Shale oil extraction
 
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Shale oil extraction is an industrial process for unconventional oil production. This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution. The resultant shale oil is used as fuel oil or upgraded to meet refinery feedstock specifications by adding hydrogen and removing sulfur and nitrogen impurities. Shale oil extraction is usually performed above ground by mining the oil shale and then treating it in processing facilities. Other modern technologies perform the processing underground by applying heat and extracting the oil via oil wells. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1657 Audiopedia
Graphite
 
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Graphite /ˈɡræfaɪt/ is made almost entirely of carbon atoms, and as with diamond, is a semimetal native element mineral, and an allotrope of carbon. Graphite, meaning "writing stone", was named by Abraham Gottlob Werner in 1789 from the Ancient Greek γράφω (graphō), "to draw/write", for its use in pencils, where it is known as lead (not to be confused with the metallic element lead). Graphite is the most stable form of carbon under standard conditions. Therefore, it is used in thermochemistry as the standard state for defining the heat of formation of carbon compounds. Graphite may be considered the highest grade of coal, just above anthracite and alternatively called meta-anthracite, although it is not normally used as fuel because it is difficult to ignite. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1534 Audiopedia
Catalytic converter
 
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A catalytic converter is a vehicle emissions control device that converts toxic pollutants in exhaust gas to less toxic pollutants by catalyzing a redox reaction (oxidation or reduction). Catalytic converters are used in internal combustion engines fueled by either petrol (gasoline) or diesel—including lean burn engines. The first widespread introduction of catalytic converters was in the United States automobile market. Manufacturers of 1975 model year equipped gasoline-powered vehicles with catalytic converters to comply with the U.S. Environmental Protection Agency's stricter regulation of exhaust emissions. These "two-way" converters combined carbon monoxide (CO) with unburned hydrocarbons (HC) to produce carbon dioxide (CO2) and water (H2O). In 1981, two-way catalytic converters were rendered obsolete by "three-way" converters that also reduce oxides of nitrogen (NOx); however, two-way converters are still used for lean burn engines. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 508 Audiopedia
DOCUMENTAL 👍ツ👉 VIAJE AL CENTRO DE LA TIERRA,DOCUMENTALES,DOCUMENTALES INTERESANTES ,DOCUMENTARY
 
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DOCUMENTAL 👍ツ👉 VIAJE AL CENTRO DE LA TIERRA,DOCUMENTALES,DOCUMENTALES INTERESANTES ,DOCUMENTARY 👅 SUSCRÍBETE https://goo.gl/PpDqDx 👍 😜 👆 DOCUMENTAL 👍ツ👉 VIAJE AL CENTRO DE LA TIERRA,DOCUMENTALES,DOCUMENTALES INTERESANTES ,DOCUMENTARY 👍 DALE PULGAR HACIA ARRIBA 👍ツ DOCUMENTAL 👍ツ👉 VIAJE AL CENTRO DE LA TIERRA,DOCUMENTALES,DOCUMENTALES INTERESANTES ,DOCUMENTARY 🗣 DEJEN SUS COMENTARIOS 💭 DOCUMENTAL 👍ツ👉 VIAJE AL CENTRO DE LA TIERRA,DOCUMENTALES,DOCUMENTALES INTERESANTES ,DOCUMENTARY DOCUMENTAL,DOCUMENTALES,documental youtube,documental national geographic,documental historia,documental online,documental zeitgeist,documental universo,documental extraterrestres,documental discovery max,documentales historia,documentales online,documentales youtube,mejores documentales,documentales discovery channel,documentales national geographic,documentales yonkis,documentales de animales,documental,documental national geographic,documental Discovery cannel,documentales completos en español,documentales de historia,documentales national geographic,documentales de animales,documentales Discovery cannel,documentales hd, documentales interesantes,documentales bbc,documentales de Discovery cannel,documentales,documentary,documentary entaries history cannel DOCUMENTAL,DOCUMENTALES,documental youtube,documental national geographic,documental historia,documental online,documental zeitgeist,documental universo,documental extraterrestres,documental discovery max,documentales historia,documentales online,documentales youtube,mejores documentales,documentales discovery channel,documentales national geographic,documentales yonkis,documentales de animales,documental,documental national geographic,documental Discovery cannel,documentales completos en español,documentales de historia,documentales national geographic,documentales de animales,documentales Discovery cannel,documentales hd, documentales interesantes,documentales bbc,documentales de Discovery cannel,documentales,documentary,documentary bbc,documentary subtitles in english,documentary national geographic,documentary 2016,documentario,documentaries,documentaries bbc,documentaries in english,documentaries 2016,documentaries history cannel DOCUMENTAL,DOCUMENTALES,documental youtube,documental national geographic,documental historia,documental online,documental zeitgeist,documental universo,documental extraterrestres,documental discovery max,documentales historia,documentales online,documentales youtube,mejores documentales,documentales discovery channel,documentales national geographic,documentales yonkis,documentales de animales,documental,documental national geographic,documental Discovery cannel,documentales completos en español,documentales de historia,documentales national geographic,documentales de animales,documentales Discovery cannel,documentales hd, documentales interesantes,documentales bbc,documentales de Discovery cannel,documentales,documentary,documentary bbc,documentary subtitles in english,documentary national geographic,documentary 2016,documentario,documentaries,documentaries bbc,documentaries in english,documentaries 2016,documentaries history cannel 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE GENTE QUE COME PLASTICO 👍ツ👉 https://www.youtube.com/watch?v=8DLR5EEWB-U 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LA REINA BOUDICA 👍ツ👉 https://www.youtube.com/watch?v=4F7UycsLebY 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LA CERVEZA 👍ツ👉 https://www.youtube.com/watch?v=0HKsklcx4Jg 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS CABALLOS ESPAÑOLES 👍ツ👉 https://www.youtube.com/watch?v=JJSJJcW52pY 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBREESTRATERRESTRES 👍ツ👉 https://www.youtube.com/watch?v=gBRfq7GQ1Eo 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS LA EXTREMA DERECHA Y LOS NEONAZIS EN EUROPA 👍ツ👉 https://www.youtube.com/watch?v=9O25eF_RV44 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS MILLONARIOS 👍ツ👉https://www.youtube.com/watch?v=Drp37x7-eKM 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE TOXICOS EN LOS ALIMENTOS 👍ツ👉 https://www.youtube.com/watch?v=-BgqAwED7IY 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LA DIABETES 👍ツ👉 https://www.youtube.com/watch?v=EPDGOp33Mtc 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS NARCOS PABLO ESCOBAR 👍ツ👉 https://www.youtube.com/watch?v=bnbu3J55rfg 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS AZTECAS 👍ツ👉 https://www.youtube.com/watch?v=idIlAwe6thQ 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LOS ROMANOS 👍ツ👉 https://www.youtube.com/watch?v=8tVE0yk7KrM 👍 😜 👇NO SE PIERDA ESTE DOCUMENTAL SOBRE LAS NINFOMANAS 👍ツ👉 https://www.youtube.com/watch?v=caOYOhBEIYk He creado este vídeo con el Editor de vídeo de YouTube (http://www.youtube.com/editor) #Documental#Documentales#MejoresDocumentales#DocumentalesEnEspañol#Documentales CompletosEnEspañol#DocumentalesInteresantes#Video#Videos -~-~~-~~~-~~-~- Please watch: "BATALLAS EPICAS DE LA HISTORIA,MIOSÉS,DOCUMENTALES GUERRA,DOCUMENTALES DOCUMENTAL,BIBLIA DOCUMENTAL" https://www.youtube.com/watch?v=AtzkQ0H-tJU -~-~~-~~~-~~-~-
Greater Sudbury
 
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Greater Sudbury (2011 census population 160,274) is a city in Ontario, Canada, which was founded following the discovery of nickel ore by Tom Flanagan, a Canadian Pacific Railway blacksmith in 1883, when the transcontinental railway was near completion. Greater Sudbury was formed in 2001 by merging the cities and towns of the former Regional Municipality of Sudbury with several previously unincorporated geographic townships. It is the largest city in Northern Ontario by population and the 24th largest metropolitan area in Canada. By land area, it is the largest city in Ontario and the seventh largest municipality by area in Canada. Sudbury, as it is commonly known, is administratively separate and thus not part of any district, county, or regional municipality. Sudbury has a humid continental climate with warm and often hot summers and long, cold, snowy winters. The population resides in an urban core and many smaller communities scattered around 300 lakes and among hills of rock blackened by historical smelting activity. Sudbury was once a major lumber centre and a world leader in nickel mining. Mining and related industries dominated the economy for much of the 20th century. The two major mining companies which shaped the history of Sudbury were Inco, now Vale, which employed more than 25% of the population by the 1970s, and Falconbridge, now Glencore Xstrata. Sudbury has since expanded from its resource-based economy to emerge as the major retail, economic, health and educational centre for Northeastern Ontario. Sudbury is also home to a large Franco-Ontarian population that influences its arts and culture. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 273 Audiopedia
Gold | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Gold 00:03:21 1 Characteristics 00:04:59 1.1 Color 00:06:50 1.2 Isotopes 00:09:16 1.2.1 Synthesis 00:11:48 2 Chemistry 00:16:18 2.1 Rare oxidation states 00:19:01 2.2 Medicinal uses 00:20:03 3 Origins 00:20:12 3.1 Earth's mantle origins 00:20:55 3.2 Celestial origin theories 00:24:05 4 Occurrence 00:27:19 4.1 Seawater 00:29:29 5 History 00:38:28 5.1 Etymology 00:39:36 5.2 Culture 00:42:25 6 Production 00:43:29 6.1 Mining and prospecting 00:47:35 6.2 Extraction and refining 00:49:20 6.3 Consumption 00:50:10 6.4 Pollution 00:52:38 7 Monetary use 00:59:42 7.1 Price 01:01:01 7.2 History 01:06:02 8 Other applications 01:06:12 8.1 Jewelry 01:08:33 8.2 Electronics 01:12:02 8.3 Medicine 01:17:00 8.4 Cuisine 01:18:55 8.5 Miscellanea 01:21:38 9 Toxicity 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: 0.7739193736639014 Voice name: en-US-Wavenet-E "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native) form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum) and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia, a mixture of nitric acid and hydrochloric acid, which forms a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid, which dissolves silver and base metals, a property that has long been used to refine gold and to confirm the presence of gold in metallic objects, giving rise to the term acid test. Gold also dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold dissolves in mercury, forming amalgam alloys, but this is not a chemical reaction. A relatively rare element, gold is a precious metal that has been used for coinage, jewelry, and other arts throughout recorded history. In the past, a gold standard was often implemented as a monetary policy, but gold coins ceased to be minted as a circulating currency in the 1930s, and the world gold standard was abandoned for a fiat currency system after 1971. A total of 186,700 tonnes of gold exists above ground, as of 2015. The world consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold's high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity have led to its continued use in corrosion resistant electrical connectors in all types of computerized devices (its chief industrial use). Gold is also used in infrared shielding, colored-glass production, gold leafing, and tooth restoration. Certain gold salts are still used as anti-inflammatories in medicine. As of 2016, the world's largest gold producer by far was China with 450 tonnes per year.
Views: 8 wikipedia tts
Titanium
 
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Titanium is a chemical element with the symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density and high strength. It is highly resistant to corrosion in sea water, aqua regia and chlorine. Titanium was discovered in Cornwall, Great Britain, by William Gregor in 1791 and named by Martin Heinrich Klaproth for the Titans of Greek mythology. The element occurs within a number of mineral deposits, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere, and it is found in almost all living things, rocks, water bodies, and soils. The metal is extracted from its principal mineral ores via the Kroll process or the Hunter process. Its most common compound, titanium dioxide, is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4), a component of smoke screens and catalysts; and titanium trichloride (TiCl3), which is used as a catalyst in the production of polypropylene. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 4780 Audiopedia
Kola Peninsula
 
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The Kola Peninsula is a peninsula in the far northwest of Russia. Constituting the bulk of the territory of Murmansk Oblast, it lies almost completely to the north of the Arctic Circle and is bordered by the Barents Sea in the north and the White Sea in the east and southeast. The city of Murmansk is the most populous human settlement on the peninsula, with a population of over 300,000 as of the 2010 Census. Despite the peninsula's northerly location, its proximity to the Gulf Stream leads to unusually high temperatures in winter, but also results in high winds due to the temperature variations between land and the Barents Sea. Summers are rather chilly, with the average July temperature of only 11 °C. The peninsula is covered by taiga in the south and tundra in the north, where permafrost limits the growth of the trees resulting in landscape dominated by shrubs and grasses. The peninsula supports a small variety of mammals, and its rivers are an important habitat for the Atlantic salmon. The Kandalaksha Nature Reserve, established to protect the population of common eider, is located in the Kandalaksha Gulf. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 511 Audiopedia
Natural resource economics
 
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Natural resource economics deals with the supply, demand, and allocation of the Earth's natural resources. One main objective of natural resource economics is to better understand the role of natural resources in the economy in order to develop more sustainable methods of managing those resources to ensure their availability to future generations. Resource economists study interactions between economic and natural systems, with the goal of developing a sustainable and efficient economy. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 795 Audiopedia
Alkalinity
 
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Alkalinity is the name given to the quantitative capacity of an aqueous solution to neutralize an acid. Measuring alkalinity is important in determining a stream's ability to neutralize acidic pollution from rainfall or wastewater. It is one of the best measures of the sensitivity of the stream to acid inputs. There can be long-term changes in the alkalinity of rivers and streams in response to human disturbances. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 125 Audiopedia
Heavy metal (chemistry) | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Heavy_metals 00:03:06 1 Definitions 00:07:02 1.1 List of heavy metals based on density 00:08:30 2 Origins and use of the term 00:10:43 2.1 Criticism 00:11:30 2.2 Popularity 00:12:28 3 Biological role 00:14:51 4 Toxicity 00:15:39 4.1 Environmental heavy metals 00:18:20 4.2 Nutritionally essential heavy metals 00:19:39 4.3 Other heavy metals 00:20:50 4.4 Exposure sources 00:21:57 5 Formation, abundance, occurrence, and extraction 00:29:20 6 Properties compared with light metals 00:30:32 7 Uses 00:32:15 7.1 Weight- or density-based 00:35:23 7.2 Strength- or durability-based 00:37:30 7.3 Biological and chemical 00:39:10 7.4 Colouring and optics 00:40:07 7.5 Electronics, magnets, and lighting 00:42:45 7.6 Nuclear 00:43:54 8 Notes 00:44:02 9 Sources 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: 0.8385105082709892 Voice name: en-US-Wavenet-A "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Heavy metals are generally defined as metals with relatively high densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary depending on the author and context. In metallurgy, for example, a heavy metal may be defined on the basis of density, whereas in physics the distinguishing criterion might be atomic number, while a chemist would likely be more concerned with chemical behaviour. More specific definitions have been published, but none of these have been widely accepted. The definitions surveyed in this article encompass up to 96 out of the 118 known chemical elements; only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in science. A density of more than 5 g/cm3 is sometimes quoted as a commonly used criterion and is used in the body of this article. The earliest known metals—common metals such as iron, copper, and tin, and precious metals such as silver, gold, and platinum—are heavy metals. From 1809 onwards, light metals, such as magnesium, aluminium, and titanium, were discovered, as well as less well-known heavy metals including gallium, thallium, and hafnium. Some heavy metals are either essential nutrients (typically iron, cobalt, and zinc), or relatively harmless (such as ruthenium, silver, and indium), but can be toxic in larger amounts or certain forms. Other heavy metals, such as cadmium, mercury, and lead, are highly poisonous. Potential sources of heavy metal poisoning include mining, tailings, industrial wastes, agricultural runoff, occupational exposure, paints and treated timber. Physical and chemical characterisations of heavy metals need to be treated with caution, as the metals involved are not always consistently defined. As well as being relatively dense, heavy metals tend to be less reactive than lighter metals and have much less soluble sulfides and hydroxides. While it is relatively easy to distinguish a heavy metal such as tungsten from a lighter metal such as sodium, a few heavy metals, such as zinc, mercury, and lead, have some of the characteristics of lighter metals, and, lighter metals such as beryllium, scandium, and titanium, have some of the characteristics of heavier metals. Heavy metals are relatively scarce in the Earth's crust but are present in many aspects of modern life. They are used in, for example, golf clubs, cars, antiseptics, self-cleaning ovens, plastics, solar panels, mobile phones, and particle accelerators.
Views: 8 wikipedia tts
Mining
 
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Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, or reef, which forms the mineralized package of economic interest to the miner. This video targeted to blind users. Attribution: Article text available under CC-BY-SA Public domain image source in video
Views: 255 encyclopediacc
Sustainable Secondary Aluminum Production and Recycling
 
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Presented by Navid Jafari, M.S. - Doctoral Candidate, NSF Fellow, Department of Civil and Environmental Engineering at University of Illinois Urbana-Champaign