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How Old is that Rock?
 
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Uranium-Lead Dating using Zircon Crystals.
Views: 17366 GNS Science
Uranium-lead dating
 
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Views: 4760 Benjamin Shepler
Uranium-thorium dating
 
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Video Software we use: https://amzn.to/2KpdCQF Ad-free videos. You can support us by purchasing something through our Amazon-Url, thanks :) Uranium-thorium dating, also called thorium-230 dating, uranium-series disequilibrium dating or uranium-series dating, is a radiometric dating technique commonly used to determine the age of calcium carbonate materials such as speleothem or coral.Unlike other commonly used radiometric dating techniques such as rubidium-strontium or uranium-lead dating, the uranium-thorium technique does not measure accumulation of a stable end-member decay product.Instead, the uranium-thorium technique calculates an age from the degree to which secular equilibrium has been restored between the radioactive isotope thorium-230 and its radioactive parent uranium-234 within a sample.Thorium is not soluble in natural waters under conditions found at or near the surface of the earth, so materials grown in or from these waters do not usually contain thorium. ---Image-Copyright-and-Permission--- About the author(s): . The original uploader was Paulsheer at English Wikipedia License: Creative Commons Attribution-Share Alike 3.0 (CC BY-SA 3.0) Author(s): Paulsheer ---Image-Copyright-and-Permission--- This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision. Article available under a Creative Commons license Image source in video
Views: 886 WikiWikiup
Uranium and Thorium Samples in Cloud Chamber
 
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Nothinglabs.com is now selling radioactive samples on ebay!
Views: 10895 Rich Olson
How Nuclear rockets will get us to Mars and beyond
 
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They were developed more than 40 years ago and then almost forgotten but now Nuclear Rockets are set to make a comeback and possibly provide the fastest way to get around our solar system to date. Here look at their history and how they could be used in the next decade or so. Patreon : https://www.patreon.com/curiousdroid Paypal.me : https://www.paypal.me/curiousdroid Sponsors: Symon Hamer, Florian Hesse, Felix Friese, Martel DuVigneaud, Bernt-Olov Hellstram, Tayar Jundi, Johan Rombaut, Tobias Pettersson, Kevin Hinnen, Mitchel J. Mullin II, Lucius Kwok, Hunter Schwisow, Pyloric, Seb Stoodley, Peter Cote, Cody Belichesky, Mogoreanu Daniel, Douglas Gustafson, Marcus Chiado, Jorn Magnus Karlsen This episodes shirt was the Plectrum Hawaiian Shirt by Madcap England & available from https://www.atomretro.com/madcap_england Get 10% discount with the code DROID10 Presented by Paul Shillito Written and researched by Andy Munzer Additional material by Paul Shillito Footage and Images:NASA, Roscosmos, SpaceX, Fragomatik https://www.youtube.com/user/fragomatik/, Mark Wade http://www.astronautix.com Music Mike G. Mullen, BMI - www.positrosmic.com Featuring on Guitar James Zota Baker - www.jameszotabaker.com Azimuth Mix 002 with Guitar: https://soundcloud.com/synchro505/azimuth-mix-002-with-guitar
Views: 668703 Curious Droid
Decay Series.mpg
 
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Naturally occuring radioactive isotopes with decay series.
Views: 6124 EnderlePhD
What is FISSION TRACK DATING? What does FISSION TRACK DATING mean? FISSION TRACK DATING meaning
 
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What is FISSION TRACK DATING? What does FISSION TRACK DATING mean? FISSION TRACK DATING meaning - FISSION TRACK DATING definition - FISSION TRACK DATING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Fission track dating is a radiometric dating technique based on analyses of the damage trails, or tracks, left by fission fragments in certain uranium-bearing minerals and glasses. Fission-track dating is a relatively simple method of radiometric dating that has made a significant impact on understanding the thermal history of continental crust, the timing of volcanic events, and the source and age of different archeological artifacts. The method involves using the number of fission events produced from the spontaneous decay of uranium-238 in common accessory minerals to date the time of rock cooling below closure temperature. Fission tracks are sensitive to heat, and therefore the technique is useful at unraveling the thermal evolution of rocks and minerals. Most current research using fission tracks is aimed at: a) understanding the evolution of mountain belts; b) determining the source or provenance of sediments; c) studying the thermal evolution of basins; d) determining the age of poorly dated strata; and e) dating and provenance determination of archeological artifacts. Unlike other isotopic dating methods, the "daughter" in fission track dating is an effect in the crystal rather than a daughter isotope. Uranium-238 undergoes spontaneous fission decay at a known rate, and it is the only isotope with a decay rate that is relevant to the significant production of natural fission tracks; other isotopes have fission decay rates too slow to be of consequence. The fragments emitted by this fission process leave trails of damage (fossil tracks or ion tracks) in the crystal structure of the mineral that contains the uranium. The process of track production is essentially the same by which swift heavy ions produce ion tracks. Chemical etching of polished internal surfaces of these minerals reveals spontaneous fission tracks, and the track density can be determined. Because etched tracks are relatively large (in the range 1 to 15 micrometres), counting can be done by optical microscopy, although other imaging techniques are used. The density of fossil tracks correlates with the cooling age of the sample and with uranium content, which needs to be determined independently. To determine the uranium content, several methods have been used. One method is by neutron irradiation, where the sample is irradiated with thermal neutrons in a nuclear reactor, with an external detector, such as mica, affixed to the grain surface. The neutron irradiation induces fission of uranium-235 in the sample, and the resulting induced tracks are used to determine the uranium content of the sample because the 235U:238U ratio is well known and assumed constant in nature. To determine the number of induced fission events that occurred during neutron irradiation an external detector is attached to the sample and both sample and detector are simultaneously irradiated by thermal neutrons. The external detector is typically a low-uranium mica flake, but plastics such as CR-39 have also been used. The resulting induced fission of the uranium-235 in the sample creates induced tracks in the overlying external detector, which are later revealed by chemical etching. The ratio of spontaneous to induced tracks is proportional to the age. Another method of determining uranium concentration is through LA-ICPMS, a technique where the crystal is hit with a laser beam and ablated, and then the material is passed through a mass spectrometer........
Views: 1004 The Audiopedia
Oklo, the Two Billion Year Old Nuclear Reactor
 
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SciShow takes you to a uranium deposit in Africa where, eons ago, a unique set of conditions came together to form the world’s only known natural nuclear reactor. Check it out! No radiation suit required! Hosted by: Hank Green ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Thanks Tank Tumblr: http://thankstank.tumblr.com Sources:
Views: 2147506 SciShow
Uranium–lead dating
 
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Uranium–lead dating =======Image-Copyright-Info======= Image is in public domain Author-Info: Radiogenic (talk) (Uploads) Image Source: https://en.wikipedia.org/wiki/File:ConcordiaDiagram.jpg =======Image-Copyright-Info======== ☆Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video
Views: 770 WikiAudio
What's it Like in a Radioactive Thorium Mine? A cubic kilometer to power the world!
 
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What's it Like in a Radioactive Thorium Mine? How radioactive is a Thorium mine? For how long can one stay there? Do you need a lamp in a Thorium mine or does it glow in the dark? (hahaha!) For how long can a cubic kilometer power the world? There are many questions and in this video we are in Norway and going into the Thorium mine in the Fensfelt complex. It used to be an iron mine dating back as long as to 1650! We met the owner (who doesn't want to be on video) and the regional geologist and his assistant who guided us along the way. The place is about 100 times more radioactive than normal background radiaiton. Nothing to worry too much about as long as you don't live there or ingest any materials. Actually the radioactivity doesn't come directly from Thorium but rather indirectly since the main sources of radioactivity is the daughter products of Thorium that has much shorter halftime. In this particular area which is smaller than one cubic kilometer there is more energy in Thorium than all the past and future oil and gas in all of Norway. Given that Norway is the world's richest nation due to it's oil and gas profits, should't they play a key role in developing this future power source to help power the world? (and make another 1,5 trillion $ in doing so) Let’s not gamble with your future. It’s time to leave the past behind and enter a safe, healthy and rich new era of growth! Do you think this kind of videos helps to power the world with thorium? Support us as a member/patron and we will make more and even better videos https://www.patreon.com/ThoriumEnergyWorld Don't forget to like us on Facebook! https://www.facebook.com/ThoriumEnergyWorld/ Follow us on Twitter! https://twitter.com/thenergyorg Read about all Developers http://www.thoriumenergyworld.com/developers.html Learn more about the current state of the art from the world’s leading scientists http://www.thoriumenergyworld.com/conference.html Learn about the world's energy situation http://www.thoriumenergyworld.com/energy.html Get the basics about Thorium http://www.thoriumenergyworld.com/thorium.html
Views: 1901 Thorium Energy
Thorium Fireball: Direct Production of U233 in Th232 Beams - Bogdan Maglich @ TEAC7
 
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BARC's simulations predict that by switching to Strong Focusing Auto Collider designed by Blewett, 10 deuterons 0.75 MeV each, will generate 1 3He +1T +1p + 1n at a total input energy cost of 10.72 MeV. Economic value of T and 3He is 65 and 120 MeV/atom respectively. Paper by Bogdan Maglich & Tim Hester of CALSEC California Science & Engineering Corp., Irvine, California: http://calseco.com Thorium Energy Alliance: http://www.thoriumenergyalliance.com/ Footage captured for "Thorium Remix" an educational video series about thorium. http://thoriumremix.com/2015/
Views: 4471 gordonmcdowell
What Every Adventist Scientist Should Know: Uranium-Lead Dating 3-15-2014 by Paul Giem
 
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We continue a series on What Every Adventist Scientist Should Know. This third week we review the data on uranium-lead dating. 1. Giem, PAL, 1997. Scientific Theology (Chapter 5). La Sierra University Press. Available online free at http://www.scientifictheology.com 2. Gentry RV, Christie WH, Smith DH, Emery JF, Reynolds SA, Walker R, Cristy SS, Gentry PA, 1976. "Radiohalos in coalified wood: New evidence relating to the time of uranium introduction and coalification." Science 194:315-8. http://www.sciencemag.org/content/194/4262/315.abstract 3. Gentry RV, Glish GJ, McBay EH, 1982. Differential helium retention in zircons: implications for nuclear waste management. Geophysical Research Letters, 9(10), 1129--1130. http://onlinelibrary.wiley.com/doi/10.1029/GL009i010p01129/abstract 4. Humphreys DR, 2005. Young Helium Diffusion Age of Zircons Supports Accelerated Nuclear Decay. In Radioisotopes and the Age of The Earth: Results of a Young-Earth Creationist Research Initiative, (Volume II), L. Vardiman et al., eds. Available at http://www.icr.org/i/pdf/technical/Young-Helium-Diffusion-Age-of-Zircons.pdf For additional recordings on various topics regarding faith and science visit: ItsAboutGod.tv/sls
Views: 799 ItIsAboutGod
Uranium Dating
 
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A short video about uranium dating, especially for ms.santos! :)
Views: 2245 Kirti Pandey
Slang Words that I Don't Understand
 
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I'm sure there's some convoluted origin to all of these that makes SOME sense, but it's funnier if we just stick to a laymen's perspective here. Intro and outro song: "Brandenburg Concerto No. 4 in G, Movement I (Allegro), BWV 1049" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/
Views: 1419696 Sam O'Nella Academy
Uranium desperation: C14 in diamonds by U-Th ? Bible been proven right AGAIN.
 
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Is C14 in diamonds, that are supposedly millions-billions yrs old, formed by Uranium-Thorium (U-Th) decay ???? Well sorry for the folks that try to get rid of C14 in diamonds so eagerly... but no C14 is impossibly formed due to SUPPOSED nearby uranium-thorium decay. You see the U-Th- C14 formation is only 0,0001 atom per second per gram carbon. That means only 1 C14 atom will be formed in 2,7777777 hours or in 2 hours and 45 minutes.... in 1 gram of C. Well to get a DETECTABLE !!!! amount, it is required that this process takes about 7000 BILLIONS of yrs ... assuming that all C14 will in the meanwhile NOT decays... Well as you might have guessed this is NOT scientifically correct.... And IF there was such a vast amout of uranium-thorium present then no-one on earth would want to have THAT diamond due to the radiation coming of that diamond... Furthermore. IF C14 formed by uranium-thorium would be possible in vast amounts then there would be more problems. Since uranium decays in helium, where is the helium in the diamonds ? and the helium ions would make C turn into O and with the heat around the diamond (due to the present uranium) this oxigen would immediately react with the diamonds C to form gasious CO and CO2... so NO diamonds would be left.... Next to that also Boron would be formed due to the released electrons.... you see Uranium decays with the formation of He2+ and e-..... and boron will be formed from C14 and e-. Sorry old agers folks: NON of this has been found in significant amounts.. But your theory is highly interesting for us YEC-ers: By YOUR DESPERSATELY trying to proof the earth is NOT 6000 yrs old, it appears that YOU YOURSELVES proof the YEC-ers standpoints..... that is: you are willing to bring unscientific and unrelyable unprovable theories/hypotheses and cheating on us and to humanity just in order to get your theories accepted.... That IS indoctrination and false propaganda folks..... Your true nature by this C14-uranium-thorium issue is very strongly revealed ... just lying and deceiting on us by every means possible..... even with false science.... Exactly as we YEC-ers ALWAYS have told ..... Thanks for revealing us your true nature.... We forgive you !!! But.... .. this proofs that we are right and the bible is right AGAIN !!! Thank you so much !!!!
Views: 271 thewaytruthandlife
Marin Katusa: Uranium Series Part 4: Making a Short Case Against Uranium
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Marin discusses his travels to many regions where he has looked at lots of projects. Most of which he says, “Will never, ever get into production.” When markets get euphoric many of these old projects will be promoted, and while they may have pounds in the ground, they will never be mines. Don’t put any money in European or non-producing areas of Africa in the next cycle. You want to expose yourself to cash-flow and royalties. He discusses his “short report” on uranium and how he only looked at the United State’s demand picture for uranium. He analyzed reactor shutdowns and how many would likely be built. He only counted those reactors that are financed, permitted and thus under construction. Typically only 10% of planned reactors ever get made. He is quite bullish on uranium as the United States is the largest consumer of uranium in the world and yet they produce less than 10% of what they consume. America is very vulnerable. He cautions that since uranium is so unloved, it’s ten times as difficult to start a uranium mine. Governments and people are afraid of uranium due to misinformation. Marin likes the royalty and streaming companies and feels every investor should have exposure to them. They take on the least amount of risk and tend to outperform everything else. You want to minimize your downside risks by investing with the best long-term management teams who have weathered the bad times and that have projects in the best jurisdictions. Whenever you invest in a fund or company be sure that they are more invested in it than you. He feels that by the end of 2019 the price should reach $35 to $40 and in 2020 it should be above $40. The move in uranium will likely not happen all at once.
Views: 5077 Palisade Radio
Radioactive decay series - Uranium (4n+2) series
 
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To more videos subscribe our channel
Views: 670 Chemistry exam
Rob Crayfourd & Keith Watson: Uranium Series Part 9: Kazatomprom is a Game Changer
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com We are joined by Robert Crayfourd and Keith Watson from New City Natural Resources who are fund managers for their Geiger Counter Limited fund. They discuss how the uranium market is continuing to tighten as reactors are built. Many countries need energy that is carbon emission free. Further incentive pricing and long-term contracts are required to restart mines and bring on more production. The in-elasticity of uranium demand means that large price increases will not have an effect on the needs of the nuclear energy industry. Time Stamp Reference: 00:40 – Introductions and backgrounds 02:30 – Uranium market is getting tighter, and demand is increasing. 05:10 – Reactor restart timelines are difficult to obtain. 05:50 – Japan has nuclear in their strategic plans. 07:50 – Demand reduction risks could come from Germany and France. 13:10 – What will send the price upwards? 17:45 – KazAtomProm is increasingly competitive business wise. 19:45 – Uranium not correlated to the regular markets. 22:30 – Cameco will not restart McArthur River until above $45.00 23:45 – NexGen is an attractive resource.
Views: 3528 Palisade Radio
Metal-silicate Partitioning of Uranium and Thorium up to 138 GPa and 5500 K and Implications for...
 
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2014 Fall Meeting Section: Study of Earth's Deep Interior Session: The Structure, Dynamics, and Evolution of Earth's Core: Observations, Models, and Experiments I Title: Metal-silicate Partitioning of Uranium and Thorium up to 138 GPa and 5500 K and Implications for Stratified Layer at the Top of the Outer Core Authors: Nomura, R, Tokyo Institute of Technology, Tokyo, Japan Chang, Q, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan Hirose, K, Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan Kimura, J I, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan Abstract: http://abstractsearch.agu.org/meetings/2014/FM/DI13C-03
Michael Alkin: Uranium Series Part 2: The Bull Case for Uranium in 2019 is Very Strong
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Michael continues his discussion on the intricacies of uranium, and we pick up with his analysis of supply. Supply has been constrained by recent cutbacks from Kazakhstan and Cameco as well as other mines being idled. There appears to be some supply-side discipline building in the market. Secondary supplies are also starting to wane, and there is not much left. This points to an inevitable price rise. The demand picture is beginning to form as a third of nuclear plants will need to buy uranium which will no longer be available from the spot market. They will have to negotiate with the producers. Prices have to go appreciably higher for mines to restart. The United States used to be self-sufficient when it came to producing uranium but that is no longer the case. They are now entirely dependent on foreign sources which carries geopolitical risk. In the last few years, most uranium companies have diluted their shares and have been burning cash. There have been some investors but the marginal capital that will take these stocks higher are the general institutional funds. Uranium has not been on their radar because it's so complicated with sparse data and limited information. The big guys can’t be bothered, and the smaller investment firms can’t afford to do the research. People need to realize that this seven-year downturn has resulted in a lot of shares being issued by companies. Since they diluted their shares this will dampen the upside potential on many stocks.
Views: 6587 Palisade Radio
Michael Alkin: Uranium Series Part I: Hedge Fund Manager Goes All in on Uranium
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Michael has an extensive background in the Hedge Fund world where he would look for inconsistencies with companies and then study them in-depth. Company management would often say one thing, but the numbers would say something different. His job was to discover what was truly occurring. His career has always been about discovery, understanding expectations and knowing what is going on in both the buy and sell side of the market. His first assignment in the industry was looking into the not-for-profit education space.  He discovered there was a lot of shady and illegal business practices. Eventually, the government took notice, there was an investigation, and the stock of the company went to zero. This experience drove home the importance of not only listening to Wall Street but investigating in person to get the complete story. In 2015 he left the Hedge Fund industry for family reasons, and in his spare time, he began looking Into uranium. He quickly realized that the uranium picture was a complex one and appeared underappreciated. He details his entire journey into understanding the market and gives us a fairly in-depth overview of the uranium market. He studied the entire mining picture including the fuel cycle, reactors, regional demands, enrichment, underfeeding, and secondary market sources of uranium like government holdings. He realized that the economics of future uranium production was mainly ignored due to long-term contracts.  After carefully considering the market he realized it would almost certainly continue to grow. He explains the reasons for the plentiful uranium supply from Kazakhstan and why it was cheaper and how that is now changing.
Views: 6254 Palisade Radio
Nuclear Chemistry: Crash Course Chemistry #38
 
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You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. In this episode, Hank welcomes you to the new age, to the new age, welcome to the new age. Here he'll talk about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission. SUBBABLE MESSAGE: "To Crash Course From Shawn, Mike, Sophia, and Jake" "Thank you for using humor while educating and inspiring." -- Table of Contents Radioactivity Transmutation Among Elements and Isotopes Calculating Half-Life Radioactive Decay Spontaneous Fission -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1237810 CrashCourse
The Future of Nuclear Energy: Thorium or Uranium?
 
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Views: 90737 FutureMoneyTrends.com
Lobo Tiggre: Uranium Series Part 6: Uranium is the Territory of Ten Baggers
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Lobo Tiggre is the founder of the Independent Speculator, but you may know him by his pen name Louis James. He says, “People need to pay attention to the uranium market as this is the territory of ten-baggers.” Uranium is a sector where there are few players, and the quality assets can go up by multiples when the uranium price moves. When it does, it moves mountains both literally and figuratively. Large parts of the world including China and India must use nuclear to keep the lights on, and even the United States gets 20% of its electrical needs from nuclear power. The fundamental reality of this market is that uranium is not substitutable. Even in a worst-case scenario uranium still has to increase as it’s below the cost of production. The largest producer in the world KazAtomProm is getting more aggressive with their pricing and Cameco’s flagship uranium asset McArthur River has been shut down. Both companies realize the economics of the situation. Many analysts see $60 as an incentive price for uranium production to increase. He says, “I don’t want to count on crazy prices, I want to minimize the risk and see projects that work at lower prices. You don’t have to have crazy prices to win on uranium.” There are strong signals that the market wants to go higher. He names two picks for the exploration space. He is also bullish on vanadium as that story is solid and is often found along with uranium deposits.
Views: 3393 Palisade Radio
Rick Rule: Uranium Series Part 8: Upside in Uranium Price is Absolutely Inevitable
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com When investing in uranium companies, you want to make sure they are well funded, that they actually have uranium and that it’s not merely in the title of the company. Rick argues that placing your money in the best of the best companies will likely do better than wildly speculating. Nuclear still represents 15% of U.S. baseload energy needs and therefore in the coming years either the lights will go out, or the price of uranium will go up. Time Stamp Reference: 00:40 – Too early to draw any conclusions from recent market action. 02:00 – A liquidity crisis will hit stocks including gold stocks. 03:40 – Optimistic about uranium stocks but be selective. 05:10 – Previous uranium bull market performance. 06:45 – Utility companies are very tight-lipped. 08:05 – Value proposition of uranium juniors. 09:20 – Uranium stock picking strategies. 11:30 – Vanadium outlook and risks. 15:00 – Comparison of the cost of uranium vs. the cost of reactors.
Views: 5769 Palisade Radio
Uranium-Lead Dating
 
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I explain the basics of Uranium-Lead Dating.
Views: 2310 1Erik85
Warren Irwin: Uranium Series Part 7: Cameco's McArthur River Mine will Never Re-open
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Warren discusses the lack of a “knock your socks off uranium rally” but he still feels the trend is our friend. Some of the developments in Kazakhstan have resulted in production cuts. KazAtomProm may be incentivized in the short term to keep a lid on the price of uranium until after their IPO. Then they may start acting more like a private company than a government-backed entity. The big news from Canada is with Cameco and their shutdown of the McArthur River Mine. It shows how serious they are about trying to get the uranium market back into line. He doesn’t see them restarting the mine due to it being one of the most technically challenging in the world. He is quite familiar with NexGen’s Arrow resource, and if he were in management at Cameco, he would look at the cost benefit of closing the McArthur mine versus acquiring other assets. He feels that it's almost inevitable that Cameco will buy an interest in NexGen’s Arrow. The public view on uranium in Australia seems mixed as many environmental groups incorrectly see it as negative. People keep discussing the Olympic Dam Mine expansion and how that could bring on additional uranium production, but from a cost-benefit perspective, he doesn’t see that happening any time soon. China has forty-five nuclear plants and fifteen more that are under construction with even more in planning. Even in China, there were concerns due to Fukushima and they had to re-evaluate their plans. The reality, however, is that China needs to use nuclear to shut down their coal-fired power plants. They will need increasing amounts of uranium after 2020.
Views: 3988 Palisade Radio
Daniel Major: Uranium Series Part 3: Uranium Clearly on an Upward Trend
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com Daniel discusses the latest market conditions and why he sees it on an upward trend. Steady growth continues in nuclear energy production and reactor builds. Uranium producers have been holding back production, and there is a reduction in supply in the secondary market. Many utilities still have inventory, but they are declining as contracts unwind. He says, “There is a lot of factors that will squeeze the price higher.” From a fundamental perspective, the most significant risk with the uranium market is with the opaque inventory numbers. There is always a chance that coming price increases could bring production online too quickly. New contracts haven’t been signed in recent years because of continued excess supply from existing contracts. So in that environment, the spot market was able to supply those that did not have contracts. The U.S. and Europe’s needs for uranium are mostly covered for another year or so, but after that, we see a sharp decline in contract obligations. Inventory levels are starting to drop, and because many users want to maintain a two-year inventory they will want to start looking for that supply soon. Producers, on the other hand, are going to want justifiable long-term prices going forward. GoviEx, unlike most potential uranium plays already have their permits in place. They are working with banks to establish benchmarks for capital and use that to establish a price at which their project is feasible. As an industry, they want to secure long-term pricing that can justify the capital investment required to build out. He discusses what you can expect next from GoviEx.
Views: 3732 Palisade Radio
George Glasier: Uranium Series Part 5: Changes Coming within the US Uranium Market
 
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To subscribe to our newsletter and get notified of new shows, please visit http://palisaderadio.com George discusses the section 232 petition and why its important for U.S. uranium resource holders. Last year the U.S. produced a mere 2 million pounds while consuming over 50 million. The petition asks that 25% of U.S. commercial utility demand be filled by U.S. sourced uranium. That means 12+ million pounds may be required. The Department of Commerce is reviewing the petition and will make a recommendation next year to the President. They discuss Trump's executive order from earlier this year which names 35 strategic metals and includes uranium and vanadium. This order is important since the U.S. is not producing any vanadium. Western’s project has one of the largest in the ground stores of uranium along with a much larger vanadium resource. Their resource is looking like a primary vanadium mine with a co-product of uranium. Mr. Glasier outlines what is required for production to resume. It requires a new contract commitment for vanadium near current pricing. The big question with vanadium is what is the sustainable long-term price level. He notes that the price of uranium continues to move upwards due to production cutbacks. They have a report on grades upcoming, and they plan to re-open the mine next year for some limited activity and to reassess their vanadium resource. He says, “At current pricing, they don’t need to use the ablation technology. Conventional production can start if they can secure the price.”
Views: 2929 Palisade Radio
URANIUM & ABSOLUTE DATING
 
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Description
Views: 87 Walter Jahn
Helium dating Meaning
 
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Video shows what helium dating means. a method of determining the age of rock that depends on the production of helium during the decay of various radioactive isotopes of uranium and thorium.. helium dating synonyms: He dating. Helium dating Meaning. How to pronounce, definition audio dictionary. How to say helium dating. Powered by MaryTTS, Wiktionary
Views: 119 ADictionary
Young earth creationists and Carbon-14 "dating" of diamonds
 
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Young earth creationists are using this "Carbon-14 dating of diamonds" to argue that geologists are all wrong that the earth has been around for millions and billions of years. In this video I discuss the directly relevant science information that the young earth creationists are conveniently ignoring. (By the way, yes, I misspoke in the video about C14 being produced from C12 in the atmosphere; it's produced from nitrogen atoms, not carbon atoms.) Here is some relevant reference information (of course, as you'll notice from numerous examples of how young earth creationists behave in the comments sections of my videos, they are apparently incapable of lifting a finger to actually look up and read any real science information; they avoid/evade it like the plague; so this information is just for everyone else): "Excess carbon-14 abundances in uranium ores: Possible evidence for emission from uranium-series isotopes" by D. Barker, A. J. T. Jull, and D. J. Donahue (Geophysical Research Letters, Volume 12, Issue 10, p. 737-740 [1985]) "Carbon-14 Abundances in Uranium Ores and Possible Spontaneous Exotic Emission from U-Series Nuclides" by A. J. T. Jull, D. Barker, and D. J. Donahue (Meteoritics, Vol. 20, p.676 [Dec. 1985]) "14C in uranium and thorium minerals: a signature of cluster radioactivity?" by R. Bonetti, et al (European Physical Journal A, Vol. 5, No. 2, 235-238 [Jun. 1999]) Related: "Use of Natural Diamonds to Monitor 14C AMS Instrument Backgrounds" By R. E. Taylor and J. R. Southon (Nuclear Instruments and Methods in Physics Research B [Jun. 2007])
Views: 18233 greeneto
What Are The Different Types Of Radioactive Dating?
 
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"What Are The Different Types Of Radioactive Dating Radiocarbon dating method. Radiometric dating conservapedia radiometric conservapedia radiometric_dating a class ""imx0m"" url? Q webcache. Radiocarbon dating is a method that provides objective age estimates for; Sample type gas proportional counting conventional radiometric technique counts the beta new standard, oxalic acid ii, was proven to have only slight difference with i in terms of radiocarbon content 13 jun 2001 discovery natural radioactive decay uranium 1896 by their nuclei but different atomic weights owing variations number neutrons. Fission track dating method. Googleusercontent search. Radiocarbon dating 9 apr 2018 radiometric methods, uses & the significance of half life. Radiometric dating conservapediaradiometric wikipedia. Specimen are determined by various kinds of analytical methods the radiation produced during radioactive decay is such that daughter nuclide we classify different types 24 apr 2017 many rocks and organisms contain isotopes, as u 235 c 14. Principles of isotopes are unstable forms elements. Lutetium 176 20 nov 2013. What is carbon 14 (14c) dating? Carbon dating definition. Radioactive decay chemistry bc open textbooks. They give off particles from their nucleus and become a different isotope. How is radioactive dating used to date fossils? Dating methods using isotopes. Earlham college geology 211 radiometric datingradioactive decay types article (article) dating ( read ) ck 12 foundation. The mass spectrometer is able to give information about the type this page contains a short explanation of radiocarbon dating and found by measuring level radioactive decay, comparing that with decay rate are displaced from crystalline solid which forms because gas molecules. Samarium neodymium dating method. Uranium thorium dating method. Potassium argon dating method. The aging process in human beings is easy to seethe methods work because radioactive elements are unstable, and they always trying move a more stable stateuranium lead dating. During radioactivity, the unstable isotope breaks down and changes into a different substance. 26 sep 2018 there are several major types of radiometric dating in use radiocarbon dating, also called carbon datinguranium lead datingrubidium strontium dating contents. Dating sample, key fission product. Rubidium strontium dating method. Chlorine 36 dating method 9 jan 2014 radiometric. When an element is broken down in alpha decay it looses two neutrons and (2) protons read learn for free about the following article radioactive types you are certain will eventually into a different nucleus, still have only 24 feb 2012 isotopes half lives so they useful dating ages of rocks25 nov 2018 major radioactivity include particles, beta (ce{u}) 238, gamma rays there three that can occur (depending on radioisotopes thus 13 jul various elements used time periods; Ones with limitation all forms radiometric depend commonly. Isotopes, half life (years), effective dating range (years). A new 6 oct 2009 radioactive dating is a method of rocks and minerals using these are released as particles (there many types). Potassium argon and rubidium strontium dating. Geologic time radiometric scale. Types of radioactive decay youtube. Many different radioactive isotopes and techniques are used for dating common types of radiometric datingas shown in the diagram above, isotope carbon 14 originates earth's 27 mar 2002 there 5 decay. Types of radioactivity alpha, beta, and gamma decay radioactive dating isotopes commonly used for radiometric. Radiometric dating methods, uses & the significance of half life what is radioactive dating? Definition facts video lesson australian museum. Uranium lead dating method."
Views: 134 Question Force
Pastor Chui - 14C dating—who is fooling who? -1
 
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The Creation.com website published the article on September 8, 2018. I now quote the article below: “Bill N. of Australia wrote in response to the article How old? When archaeology conflicts with the Bible, saying that 14C, dendrochronology, and uranium-thorium (U-Th) dating techniques are indeed trustworthy, as are the experts and labs that perform these tests. He asks, “What did CMI do to disillusion them, and who is fooling who?” His message is below in red. Responses from CMI’s Gavin Cox (and some from Robert Carter on corals) are interspersed: “There are several tree-ring chronologies which are reported to agree with each other, and C14 dating of rings enables a calibration curve for C14 against age to be constructed to account for variation of C14 production from time to time due to altered solar activity or volcanism. “1. Uranium is highly soluble in seawater. Thorium is not. (The ratio 232Th/238U in seawater approximates 1x10-5). “2. Corals readily absorb ambient U and Th from seawater. The amount of each incorporated in the skeleton generally reflects the solubility difference. “3. How can you age-date something using the 230Th/234U method when the amount of 230Th in recent corals is highly variable? Seawater is not the only source of thorium, and different sources have a different 230Th/232Th ratio. The ratio in carbonates (1x10-2) bigger than deep seawater bigger than surface seawater bigger than atmospheric dust (4x10-6). In young corals, ratios can be between 0 and 2x10-5. “4. 230Th ranges from 0 to 1000 pg/g in modern corals,3 and one can measure different amounts of 232Th from corals of the same age. “5. Thus, the amount of 230Th in corals is a combination of environmental and radiogenic (from interstitial U decay) sources. “6. Finally, and this is the crux of the argument, one cannot measure 230Th/234U in ancient coral skeletons without making a lot of assumptions about the starting quantity of both constituents. This is affected by water temperature, nearby sources of both uranium and thorium (e.g. volcanic islands), and incoming thorium (of both isotopes) from various distant sources. The final age is model-dependent, after accounting for multiple correction factors….(To be continued in Part 2)
Views: 4 Christopher Chui
URANIUM and thorium , FOUND !!
 
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can someone help me identify what kind of mineral this is - i know from the guys that work in the mine that its not just one mienral but A LOT of them some radioactive some not in this ore
Most AMAZING Recent Discoveries!
 
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Check out the most amazing recent discoveries! This top 10 list of recent archaeological discoveries around the world are absolutely incredible! Subscribe For New Videos! http://goo.gl/UIzLeB Watch our "UNSOLVED Mysteries That Cannot Be Explained!" video here: https://youtu.be/-4affLOd_7Q Watch our "Most Amazing Cities Found UNDERWATER!" video here: https://youtu.be/rUqxhYJqGhU Watch our "MYSTERIOUS Things Discovered In WEIRD Places!" video here: https://youtu.be/VtiF8vhBLHY 10. Bruniquel Cave Chambe Inside of the Bruniquel Cave, in the south-west of France, scientists have discovered a chamber with ring-shaped structures made of stalagmites, both broken and whole. A sort of a small-scale Stonehenge, but with stalagmites instead of big rocks. At first, they carbon-dated the area to around 47,000 years ago, but they recently used a different kind of method. With uranium-thorium dating (sounds awesome, btw!), they managed to date the area to 176,000 years ago – three and a half times the original dating! Now, the only humans who lived there in those days were the Neanderthals, and scientists concluded that Neanderthals must have been the ones to make the stalagmite structures in the cave. This is a very important discovery, because it helped scientists realize that Neanderthals were going deep down into the caves, as opposed to earlier findings. The chamber inside Bruniquel Cave gives us the opportunity to learn more about the lives of first humans, and broaden our view on our Neanderthal ancestors. 9. Noah’s Ark Mosaic During excavations undertaken in an ancient synagogue in Israel Lower Galilee, scientists discovered a well-preserved mosaic depicting scenes from the Old Testament. Although the title, Noah’s Ark Mosaic, makes it sound like it comes straight from the Ark itself, it actually depicts the scenes connected to Noah’s journey and the Ark, hence – Noah’s Ark mosaic. This mosaic contains depictions of pairs of animals, including donkeys, bears and lions, and it was found in the ancient Jewish village of Huqoq. This mosaic was found in the form of two panels, with one panel depicting a scene from Moses’ parting of the Red Sea, with soldiers who are being swallowed by gigantic fish. What’s really fascinating about this archeological discovery is that it’s pretty rare in its category. Experts in the field agree that there aren’t many mosaics dating from that period (5th century AD) which depict these kinds of scenes. In fact, there are only two known synagogues which contain such mosaics – one is present-day Syria (which depicts a different scene) and the other in Israel (which is pretty fragmented and not very well preserved). All of this makes the newly found mosaic a one-of-a-kind discovery! Who knows, maybe there will be more of them to come. 8. A “Russian doll” Pyramid Russia and the pyramids? How does this make any sense? Well, it will soon! The Kukulkan pyramid, located in the state of Yucatan, in present-day Mexico, offers much more than the eye can tell. It is not only one pyramid, but – wait for it – three pyramids! One inside of another, inside of another, inside of another! This is why many refer to it as the “Russian doll” among fellow pyramids, as it resembles the one-inside-of-another concept of the famous Matryoshka dolls. While researching, scientists used a very useful method called electrical resistivity, during which they passed electrical waves through the pyramidal structure and measures the degree of resistivity. The results were nothing short of amazing – it turned out that the Kukulkan pyramid (also known as El Castillo – the Castle) had two more pyramids inside of it! The scientists found out that the two smaller pyramids were built much earlier, which means that the whole three-level structure wasn’t built at the same time, but over a course of several centuries. The smallest was built around 550AD, the middle one three centuries later, and the outermost one somewhere in the 12th or 13th century. It seems that the Maya people can still pull a surprise on us. Kudos! 7. Antikythera Man One of the largest sea wrecks of the ancient world is probably the Antikythera shipwreck, which happened around 65BC. It was discovered in 1900, off the coast of the island of the same name. The find was truly a wonderful one, as there were many different items from the ancient times, including bronze statues, a lot of treasure, and probably the most important item of all – the Antikythera Mechanism, widely considered as the world’s first computer! But recently, a big international team comprised of many scientists discovered something new in the
Views: 3494715 Origins Explained
THORIUM DEBUNK
 
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Thorium, element 90 on the periodic table, is a fertile material. When struck by a neutron, it will change (over time) into Uranium-233. Uranium-233 is fissile, and can fission into energy and fission products. Claims have been made regarding both thorium's energy potential, and counter claims that it holds no particular advantage over uranium as a nuclear fuel. This video seeks to clarify this dispute. Music in this video was created by KiloWatts: http://KiloWattsMusic.com/ Video assets were remixed from http://ThoriumRemix.com/ ,with some video excerpts from COSMOS with Dr. Neil deGrasse Tyson. Video constructed by Gordon McDowell. Reports cited are... NNL [UK's National Nuclear Laboratory] Comparison of Thorium and Uranium Fuel Cycles: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/65504/6300-comparison-fuel-cycles.pdf OECD NEA's Introduction of Thorium In The Nuclear Fuel Cycle: https://www.oecd-nea.org/science/pubs/2015/7224-thorium.pdf IEER Thorium Fact Sheet: http://energyfromthorium.com/ieer-rebuttal/ (I will not be linking to IEER. Easy to Google.) For a multi-hour in-depth look at Thorium, see video "Thorium.": https://youtu.be/2oK6Rs6yFsM
Views: 396082 gordonmcdowell
Uranium & Thorium distribution | Three stage nuclear power programme in Hindi | By Rahul Chaturvedi
 
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Share your details on [email protected] to get heavy early bird discount on our video lectures course of 8 subjects .. To Get free Study Material on WhatsApp “Save” our Number as ‘Tapasvi IAS’ and Send us your Name and Details on 06353628568 Join our Telegram channel and turn on your notification for daily updates and monthly PDFs https://goo.gl/azzfr7 You can visit and subscribe our YouTube channel for daily free videos https://goo.gl/rWCQ4f -~-~~-~~~-~~-~- Please watch: "SHUJAAT BUKHARI KASHMIR | SUGARCANE FARMERS | GST CESS | The Hindu Editorial Analysis in Hindi" https://www.youtube.com/watch?v=HYpMmFHdkSY -~-~~-~~~-~~-~-
Views: 254 UPSC IAS Exam
48) Absolute Time - Radiometric Dating
 
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Using the half lives of radioactive elements which go from parent to daughter through alpha and beta decay.
Views: 1687 CVshorey
Did Neanderthals discover America?
 
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In 1992-1993, researchers discovered mastodon remains and stone tools in the Cerutti Mastodon site, California. Now, uranium–thorium dating suggests they are around 130000 years old. The authors consider several possible Homo species that could have entered North America via Beringia: late Homo erectus, Neanderthals, archaic Homo sapiens or Denisovans. So, did Neanderthals discover America? Or maybe the mysterious Denisovans? Credits Excavation video & images: Dr. Tom Deméré, San Diego Natural History Museum Research: A 130,000-year-old archaeological site in southern California, USASteven R. Holen, Thomas A. Deméré, Daniel C. Fisher, Richard Fullagar, James B. Paces, George t. Jefferson, Jared M. Beeton, Richard A. Cerutti, Adam n. Rountrey, Lawrence Vescera & Kathleen A. Holen Nature doi:10.1038/nature22065
Views: 2434 SciNews
Nucleonic Corp of America Ratemeter and Uranium-Thorium Minerals
 
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This is my restored late 1940's or early '50's scaler-ratemeter for doing analytical work with radioactive materials and minerals. These were top notch items in their day, and a unit like this cost as much as a new automobile. This unit was purchased from a person in TN who listed it on ebay, and most likely it was used at Oak Ridge National Laboratory before it was surveyed as "disposable." I obtained it for $76, but spent quite a bit of time (several months) and quite a bit more cash restoring it. It needs more work to properly calibrate it to a known source. In this video I test it's function with some radioactive minerals from my collection.
Views: 262 SRSchoner
Early Man In America !
 
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After excavations in the 1960's, the site became notorious due to geochronologists analyses that indicated human habitation at Hueyatlaco was dated to 250 ka. The geochronologists claim was largely rejected amongst mainstream archaeologists and anthropologists, who typically date the earliest human habitation of the New World to roughly 15 to 20 ka. Cynthia Irwin-Williams first excavated the site in the 1960's. They dug four strata to excavate the artefact. Virginia Steen-McIntyre later wrote and published a paper concerning the dating of the artefacts found. It reported four sophisticated, independent tests: uranium-thorium dating, fission track dating, tephra hydration dating and the studying of mineral weathering to determine the date of the artefacts. Their 1981 paper (Quaternary Research (1981) v. 16, pp. 1-17) suggested that these tests, among others, validated a date of 250 ka for the Hueyatlaco artefacts. Later analyses conducted by bio-stratigraphic researcher, Sam VanLandingham, were concordant with the radiometric analyses conducted earlier. The professional report, categorizing the findings at Hueyatlaco, was delayed for years. When it was finally published in 1981 it met widespread criticism. Steen-McIntyre argues that her findings were rejected not on their failings or merits, but because her critics engaged in circular reasoning. The centre of the debate is whether the Clovis people were the earliest human inhabitants of the Americas or whether there was a PreClovis human presence in the Americas. The archaeologists studying such sites as Clovis and Hueyatlaco are able to identify the time period through a series of testing techniques. A very simplified version of determining Clovis or PreClovis is the existence of Clovis tool reduction techniques apparent on the tools. Hueyatlaco is a site that portrays the academic debate between Clovis or PreClovis inhabitation of the Americas. Hueyatlaco is famous because sophisticated, bi facial tools, professionally excavated, are dated to around 250,000 years ago (via concordance of five independent dating methods).
Views: 6768 MysticVoyager
Uranium 238 into Lead 206
 
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My Project on Physics on how Uranium 238 transforms into Lead 206.
Views: 2204 Alex Retona
Hydroplate Theory: Origin of Earth's Radioactivity
 
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Updated version w/ better sound. For anyone interested in radiometric dating and the age of the earth. This is an overview presentation of Dr. Walt Brown's online chapter on radioactivity's origin on earth. The information in this presentation shows the problems with using radiometric decay as an indicator of earth's age. This is based on his hydroplate theory of how the earth experienced a global flood as described in Genesis 6-9 (the flood of Noah). For more information about this subject and the hydroplate theory visit the Center for Scientific Creation website at: www.creationscience.com/onlinebook, key words hydroplate theory, Walt Brown, radioactivity, radiometric decay, old earth, age of the earth, zircons, uranium, radiometric lead, U238, Pb206, origins, catastrophic, plate, tectonics, lightning, hydro, plate, proton, neutron, super heavy elements, Bill Maher and Bill Nye should study hydroplate theory before declaring the Flood of Noah to be a children's fairytale. For more information on the HPT check out Dr. Walt Brown's http://creationscience.com and Real Science Radio's http://rsr.org/hydroplate-theory resource page.
Views: 6139 Bryan Nickel
MICA अभ्र्क URANIUM, THORIUM GRAPHITE || MINERALS OF RAJASTHAN PART #6 || GURUJI H NA ONLINE
 
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in this channel we are provide the best general knowledge material ,,,the material are very authentic and clean but we are the man not god if any mistake found in the material to matr ek sanyog hoga iski jimedari channel ki nhi hogi
Views: 8659 guruji h na online
❌ दुनिया का सबसेवशक्तिशाली पदार्थ! [Uranium 235] in Hindi!Urdu
 
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दुनिया का सबसेवशक्तिशाली पदार्थ! [Uranium 235] in Hindi!Urdu In this video I explained about Uranium 235.This a radioactive element and the isotope of Uranium.Only 1Kg Uranium 235 can give the power to the entire industrial city for 2.5 to 3 years.This is the most useful and harmful element on earth.This elements is used in Nuclear Bombs formerly known Atomic Bombs.There was only .91Kg Uranium 235 had been used in “Little Boy” Bomb which had been used on Hiroshima city in Japan. Uranium 235also used in Nuclear Power Plants to produ the electricity but there is only few countries who produced Uranium 235 in large scale. If you have any question regarding this topic or you noticed anything wrong in this please let me know in the comments section I definitely reply you. Don’t forget like and share if you find something helpful in this video. And for more videos like this please subscribe here.👇 Subscribe - https://www.youtube.com/channel/UCOl5ex-qERzHDpaM8Iq1yEg?app=desktop Facebook - https://m.facebook.com/Science-dood-2022333658051865/?ref=bookmarks Blog- https://webofsciencedood.blogspot.in/?m=1 Twitter https://mobile.twitter.com/home Instagram- https://www.instagram.com/science_dood/ G+ https://plus.google.com/109875299875001774662 Binding Energy - https://en.m.wikipedia.org/wiki/Binding_energy Radioactive decay - https://en.m.wikipedia.org/wiki/Radioactive_decay Uranium 235 - https://en.m.wikipedia.org/wiki/Uranium-235 Half Life Time of Radioactive Element - https://en.m.wikipedia.org/wiki/Half-life Isotope - https://en.m.wikipedia.org/wiki/Isotope Pitchblende/Uraninite - https://en.m.wikipedia.org/wiki/Uraninite Jaduguda Uranium Mine - https://en.m.wikipedia.org/wiki/Jaduguda_uranium_mine About; This a YouTube channel which will surely show you some different and the best videos on the basis of #Science. #Uranium_235
Views: 7742 Science dood!
Uranium - Video Learning - WizScience.com
 
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"Uranium" is a chemical element with symbol "U" and atomic number 92. It is a silvery-white metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all its isotopes are unstable . The most common isotopes of uranium are uranium-238 and uranium-235 . Uranium has the second highest atomic weight of the primordially occurring elements, lighter only than plutonium. Its density is about 70% higher than that of lead, but slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 , uranium-235 , and a very small amount of uranium-234 . Uranium decays slowly by emitting an alpha particle. The half-life of uranium-238 is about 4.47 billion years and that of uranium-235 is 704 million years, making them useful in dating the age of the Earth. Many contemporary uses of uranium exploit its unique nuclear properties. Uranium-235 has the distinction of being the only naturally occurring fissile isotope. Uranium-238 is fissionable by fast neutrons, and is "fertile", meaning it can be transmuted to fissile plutonium-239 in a nuclear reactor. Another fissile isotope, uranium-233, can be produced from natural thorium and is also important in nuclear technology. While uranium-238 has a small probability for spontaneous fission or even induced fission with fast neutrons, uranium-235 and to a lesser degree uranium-233 have a much higher fission cross-section for slow neutrons. In sufficient concentration, these isotopes maintain a sustained nuclear chain reaction. This generates the heat in nuclear power reactors, and produces the fissile material for nuclear weapons. Depleted uranium is used in kinetic energy penetrators and armor plating. 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/Uranium, 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: 3428 Wiz Science™
Whas is URANIUM?
 
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Whas is URANIUM? Uranium is a chemical element with symbol U and atomic number 92. It is a silvery grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium 238 and uranium 235. Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium 238 ,uranium 235, and a very small amount of uranium 234. Uranium decays slowly by emitting an alpha particle. The half-life of uranium 238 is about 4.47 billion years and that of uranium 235 is 704 million years, making them useful in dating the age of the Earth. Many contemporary uses of uranium exploit its unique nuclear properties. Uranium 235 is the only naturally occurring fissile isotope, which makes it widely used in nuclear power plants and nuclear weapons. However, because of the tiny amounts found in nature, uranium needs to undergo enrichment so that enough uranium 235 is present. Uranium 238 is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium 239 in a nuclear reactor. Another fissile isotope, uranium 233, can be produced from natural thorium and is also important in nuclear technology. Uranium 238 has a small probability for spontaneous fission or even induced fission with fast neutrons; uranium 235 and to a lesser degree uranium 233 have a much higher fission cross section for slow neutrons. In sufficient concentration, these isotopes maintain a sustained nuclear chain reaction. This generates the heat in nuclear power reactors, and produces the fissile material for nuclear weapons. Depleted uranium is used in kinetic energy penetrators and armor plating. Uranium is used as a colorant in uranium glass, producing lemon yellow to green colors. Uranium glass fluoresces green in ultraviolet light. It was also used for tinting and shading in early photography. The 1789 discovery of uranium in the mineral pitchblende is credited to Martin Heinrich Klaproth, who named the new element after the recently discovered planet Uranus. Eugène Melchior Péligot was the first person to isolate the metal and its radioactive properties were discovered in 1896 by Henri Becquerel. Research by Otto Hahn, Lise Meitner, Enrico Fermi and others, such as J. Robert Oppenheimer starting in 1934 led to its use as a fuel in the nuclear power industry and in Little Boy, the first nuclear weapon used in war. An ensuing arms race during the Cold War between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used uranium metal and uranium-derived plutonium 239. The security of those weapons and their fissile material following the breakup of the Soviet Union in 1991 is an ongoing concern for public health and safety.
Views: 114 Knowledge Archive
Biologist Ken Ham: Age of the Earth
 
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Credit to Evidence Press Radiometric dating methods cannot be reliably used to date anything without using unreasonable assumptions. Take carbon-14 dating, for example. The half-life of carbon-14 decay into nitrogen is 5730 years. From a pharmacological perspective, after 7 half-lives, any substance that goes through decay is gone. We can do the math on that by multiplying 0.5 seven times or 0.5^7 (0.5 to the seventh power). However, for convenience sake, we assume that after 10 half lives, the amount of substance going in decay will basically be undetectable. That means, carbon-14 cannot be used to date anything beyond 57,300 years. Secondly, we cannot assume that when an organism dies, its body only has carbon-14 (parent isotope) without any trace of nitrogen (daughter isotope) because that simply cannot be true for any organisms, because proteins contain nitrogen and organisms are made of proteins. Yet radiometric dating methods constantly assume that the original samples only contain parent isotopes without any trace of daughter isotopes. I didn't realize this when I was taking a physic 3 course in pharmacy school until I've heard from the young earth creationists' side. If I am to be dated, I might be dated to be thousands of years old when I am still living and breathing. The same problem exists for other radiometric dating methods (potassium-argon, uranium-thorium, rubidium-strontium, and other dating methods). That is, we simply cannot assume that the original samples when they first formed only contained the parent isotopes with no daughter isotopes. That's why radiometric dating methods always date samples to be much older than they really are. Samples of known ages are inaccurately dated because of such wrong assumptions, but samples of unknown ages are assumed to be accurately dated only because evolutionists select the dates they want that would fit their deep time model. Here's a short video with inorganic chemist Dr. Edward Boudreaux explaining why radiometric dating methods cannot work without unreasonable assumptions. https://www.youtube.com/watch?v=G-YnfkjJjLA