Rare Earth Elements - YouTube

Channel: unknown

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Welcome! You're just in time to learn about lanthanides!
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[SciShow theme]
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It's a- it's the periodic table of elements, it's- it's wonderful.
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You got your noble gases over here, and hydrogen, the building block of everything in the universe over here,
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you got your alkali metals and gold and other lovely regular metals in the middle here.
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What is this?
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What are these elements that aren't.. in.. They're not in the table proper, they're like, in their own table.
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What makes you guys so special? Those are the lanthanides on top and the actinides on the bottom.
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And they're down there because they can't be trusted around the other elements!
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That's not true. They actually could be a part of the table,
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but if they became part of the table, the table would be too big to put on a piece of paper,
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so they sort of shove them down to the bottom. Basically, like Alaska.
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You always sort of like disembody Alaska
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and bring it down because, it's just too big. You gotta- it just big... gotta break it off.
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They are actually kind of crazy actinides are, uh,
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they contain all the elements that we make nuclear weapons out of. But the lanthanides on top there.
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Uh, they're actually responsible for a lot of the coolest things that we have as 21st century citizens:
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laptops, cell phones, plasma screen TVs, solar panels, wind turbines,
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the catalytic converter on your car, that makes your car not so horrible for the environment.
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And also the pollution control equipment that we stick on top of big, gigantic coal-fired power plants
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All that stuff is made possible by our friends, the lanthanides.
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Yeah! Rare-earth elements for president!
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Oh, hold on a sec.
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Uh, yeah, mhm. N- no!
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[bleep]
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Because our rare-earth Lanthanide friends are so frickin' awesome of course,
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they have to have a dark side.
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Despite their name, a lot of rare-earths are really common.
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They're called rare because they're hard to find in large concentrations.
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Th-they like to mix together with a bunch of other minerals and elements underground,
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there- there's never, like, a vein full of Indium.
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So extracting rare-earths, and especially refining them, is a huge pain in the ass.
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In addition to giving you a huge pain in the ass,
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refining rare-earths also gives you, uh, mountains of low-level radioctive waste
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And I mean, who wants to deal with that.
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I'm actually going to give you a second to think about who would want to deal with all that.
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Yeah, it's China.
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In the past 20 years we've become extremely dependent on rare-earth metals for our, you know, everything.
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And since none of us want gigantic piles of toxic waste dumped in our backyards,
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we've left about 95% of the processing of rare-earth metals to Chinese refineries,
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which are hardly regulated at all, and in some cases just totally illegal.
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And believe me when I say that they're making an unholy godforsaken mess over there.
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I'm talking giant sizzling lakes of acidic waste.
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Oh God, I can't breathe. [heayy breathing]
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But the Chinese are also totally making bank off of all of this and they're also wielding a lot of political power.
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Like, if China got angry at the Unites States tomorrow,
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they could be like, "No more neodymium for you!"
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And then we wouldn't have any neodymium, which would mean, like, no new wind turbines or uh, like
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high-powered electric motors for- for hybrid cars.
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So other countries, including the United States, have cautiously begun building their
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much more expensive, much cleaner rare-earth refineries.
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Probably just in time for the bubble to pop on all of this stuff.
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But we still have to figure out something to do with all that toxic by-product.
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Nobody has come up with a really good solution to that problem
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Just recently a rare-earth mine in California opened back up after being shut down in 1998 for toxic leakage
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Now the company- promising that they've got it all figured out.
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No big deal.
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One of their solutions involves covering toxic waste water pools
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with interlocked 18 sided plastic balls to prevent evaporation.
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Yeah, plastic balls.
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Covering a radioactive sludge pond.. I'm not filled with an overwhelming sense of confidence in that idea,
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but the state of California seems to be satisfied.
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21st century problems, y'all.
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Do you want to know where we got all the information for this episode?
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We've set you up with some links below
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so that you can learn more about rare-earth elements and all of the controversy
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and awesome things surrounding them.
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And you can also check us out on Facebook and Twitter if you have any questions for us.
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You can also leave those in the comments, we're always there.
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And we're always looking for new ideas for episodes of Scishow
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so please let us know what you're curious about.