Exotic Elements vs. Magnet | Uranium and 40 other metals | Part 1/6

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  • Опубликовано: 7 янв 2012
  • I believe this video is unique. I haven't found a video on RUclips showing so many different metals and their effect with magnets. I dream of getting all the available elemental metals and make updates for this video series.
    I have had quite a lot feedback suggesting that I should have put the magnet on a string or scale so smaller effects would be visualized. I use this in newer parts of this series:
    Part 2: • Exotic Elements vs. Ma...
    Part 3: • Exotic Elements vs. Ma...
    Part 4: • Exotic Elements vs. Ma...
    Part 5: • Exotic Elements vs. Ma...
    Part 6: • Exotic Elements vs. Ma...
    I may at some point redo this video with more sensitive setups, but with 41 metals it is quite a large project :|
    Music is by Kevin MacLeod from www.incompetech.com.
    Songs used:
    0:31 - 6:13 + 8:55 - 9:54 Sovereign
    ISRC: USUAN1100065
    6:13 - 8:55 Atlantean Twilight
    ISRC: USUAN1100322
    9:55 - 10:31 Darkness is coming.
    ISRC: USUAN1100584
    His music is free and royalty free for download and released under a Common Creative Attribution license which is perfect for an amateur video maker like me but I have made a fair donation since I use his music extensively in my videos.
    Close captions are available in English and Danish (click the CC button under the video).
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Комментарии • 2,1 тыс.

  • @haikiri2011
    @haikiri2011 9 лет назад +48

    You should remake this video, but this time hang the magnet on a non magnetic wire like a pendulum so we can see the very effect of the very low effect ones and notice the difference between the metals.

    • @Cryptonomous
      @Cryptonomous 8 лет назад

      +Haikiri Nanbo good point

    • @MegaMrDanne
      @MegaMrDanne 8 лет назад +13

      +Haikiri Nanbo He does this in part 2. Dude listens to his audience.

    • @Skandalos
      @Skandalos Год назад

      Yea, this video is rather pointless. Nothing to see.

    • @owlredshift
      @owlredshift Год назад

      @@Skandalos 13k people are rolling their eyes at you

  • @trppmdm
    @trppmdm 10 лет назад +126

    This has to the most jolly part of youtube. ^^ Haha relaxing music, insightful comments, actual politeness. Wait, I'm on youtube?

    • @Belfor09
      @Belfor09 10 лет назад

      I believe music is borrowed from K-Pax movie. The piano theme is remind me of that movie.

    • @ruhat911
      @ruhat911 6 лет назад

      The force is strong with this one.

    • @dakotadirden9834
      @dakotadirden9834 6 лет назад

      trppmdm I know right, it's hard to believe

    • @YoutuberBack
      @YoutuberBack 2 года назад

      if believe youtube now was as good as it was 7 years ago...

    • @trppmdm
      @trppmdm 2 года назад

      @@RUclipsrBack Hey man, check out NileRed! Definitely a similar vibe and community!

  • @Turbo187KillerB
    @Turbo187KillerB 8 лет назад +93

    THIS VIDEO IS THE MOST METAL VIDEO ON RUclips!!!!

    • @draygoes
      @draygoes 6 лет назад +1

      Ok, that got a chuckle.

  • @Zhak7
    @Zhak7 8 лет назад +104

    This guy have all the elements at home 0_o

    • @souravzzz
      @souravzzz 7 лет назад +26

      But I have the Element of Surprise!

    • @HighlanderNorth1
      @HighlanderNorth1 6 лет назад +1

      Am I sensing an element of sarcasm? Videos like these should not contain elements of mockery! This information is elementary to our understanding of the elements of science that we learned in elementary school in a very elementary way. We must be serious when discussing all the different elements of scientific discovery, because there will always be an element of mystery that requires an element of maturity to decipher.

    • @yolosnuff1476
      @yolosnuff1476 6 лет назад +1

      He owns the periodic table

    • @kimcharly1266
      @kimcharly1266 4 года назад

      Polonium is most dangerous element so he cant keep it..

  • @brainiac75
    @brainiac75  10 лет назад +37

    +NY Tsou
    Hi, I can't reply directly to your comment (have you disabled replies?). Hope you see this.
    The hazard label of cadmium was a European standard that shows that cadmium is an environmental hazard (dead tree and fish). The symbol is now updated to a global standard (en.wikipedia.org/wiki/GHS_hazard_pictograms).
    Thanks for watching and commenting!

    • @Codmaster4488
      @Codmaster4488 10 лет назад

      how do you get all these elements 0.O

    • @isakmohamed27
      @isakmohamed27 10 лет назад

      Can you provide a link to where you got those rare earth metals.

    • @brainiac75
      @brainiac75  10 лет назад +1

      Isak Mohamed I bought the set through eBay, but the seller has his own website: www.smart-elements.com/?arg=detail&element=Set&newitems=&limit=1&art=00174&pn=&cat=&view=gl&tr=10&out=1&lid=15&PHPSESSID=a7d2ffd37834b8aaddb26735b7291fad#A

    • @Camroc37
      @Camroc37 10 лет назад +1

      Freeze the mercury with liquid nitrogen, then pull out the glass.

    • @Camroc37
      @Camroc37 9 лет назад +1

      Enrique Suarez Uranium is found in many minerals, but Plutonium is really not, although most elements can be found naturally on Earth, but not in pure form.

  • @ILikeWafflz
    @ILikeWafflz 8 лет назад +10

    7:35 I approve of the use of legos. I too have found some random practical purposes for them.

  • @brainiac75
    @brainiac75  11 лет назад

    You can find most on eBay (like myworld.ebay.co.uk/onyxmetall/­) or in dedicated webshops like smart-elements'com. I don't know much about the American market but there are without doubt also some in the US.
    Part 3 to this series will come in August - subscribe to get reminded ;)

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you!
    There are also some rare samples in part 2 for this video: 'Exotic Elements vs. Magnet'.
    Part 3 is only a month or two away and will include samples I didn't expect to have access to - so stay tuned ;)

  • @BleuFire50
    @BleuFire50 10 лет назад +13

    Imagine if he drooled on that lithium, quite the bang i'd say

  • @JBoyle-jr9wb
    @JBoyle-jr9wb 9 лет назад +15

    Very impressive collection. I'm going to have to buy some bismuth now. Thanks for sharing.

  • @brainiac75
    @brainiac75  11 лет назад

    Glad you liked it! Remember to watch part two 'Exotic Elements vs. Magnet' for more elements in an improved presentation ;)
    Links in the description and in the end of the video.

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you! Remember to watch part 2: Exotic Elements vs. Magnet.
    Part 3 is coming here late in August and will in my opinion have the best samples!
    Thanks for watching :)

  • @enginbilgi
    @enginbilgi 8 лет назад +6

    Even Periodic Table of Videos don't have this much metal samples.

  • @vikram.pandya
    @vikram.pandya 8 лет назад +12

    You should have hung that magnet to a very very long string so that we can better see the effect (Paramagnetic / diamagnetic etc)

    • @brainiac75
      @brainiac75  8 лет назад +2

      +Vikram Pandya
      Yep, this video was the first in the series. Part 2-4 are much better due to feedback from my viewers (links in the description box). So I may have to revisit these metals in a future video. Especially the rare earth metals which are quite paramagnetic.
      Thanks for watching and commenting!

    • @vikram.pandya
      @vikram.pandya 8 лет назад

      Thanks for your response, I already subscribed due to interesting content. Keep up the good work :)

    • @Namorite
      @Namorite 8 лет назад

      +brainiac75 Hey, you think you could re-do this video with the new methods (Water, magnet on a string, etc...) so we can have a better idea of these metals properties?

    • @brainiac75
      @brainiac75  8 лет назад +3

      Miguel Peralta Yes, that will likely happen in the future. Right now I just have so many video ideas in my head that will be more interesting to make.
      But I definitely have to re-visit the set with rare earth metals vs. magnet. Most of them should have a very noticeable reaction in a sensitive setup - despite the glass ampoule and small sample size.

    • @Namorite
      @Namorite 8 лет назад

      +brainiac75 Yeeeesss!!! I've been waiting for that ever since I first saw this video. Thank you!

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you for watching!
    Part 2 is called Exotic Elements vs. Magnet.
    Part 3 is coming late in August and will have some stunning samples :)

  • @brainiac75
    @brainiac75  11 лет назад

    Yes. Check part two of this video serie: 'Exotic Elements vs. Magnet'. I'm planning sort of a remake of this video with the rare earth metals and their oxides in a more sensitive setup. Stay tuned!

  • @Helmutlozzi
    @Helmutlozzi 9 лет назад +5

    Dat relaxing music.
    Thanks for the video!

  • @519MaLoNeY
    @519MaLoNeY 7 лет назад +8

    What a GREAT VIDEO!!! Thanks so much for your work, you are a gentleman. Lol. And I agree with the other comments, THIS here is what RUclips is about

  • @brainiac75
    @brainiac75  11 лет назад +1

    Thank you :)
    I am providing the energy in the setup. I am holding a 'lifter' magnet above the two discs of bismuth and by moving the lifter magnet up and down I can control the small magnet between the bismuth discs. If I made a rig that could hold the lifter magnet completely steady I could make a more stable levitation (balancing several forces: gravity, magnetic fields and diamagnetic repulsion).
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks for watching!
    Part 2 is called 'Exotic Elements vs. Magnet' - I tried to make it even more interesting :)

  • @Yourname942
    @Yourname942 9 лет назад +3

    Is it possible to mix every (or nearly every) element together? If so what would happen?

  • @rajeshshahi1000
    @rajeshshahi1000 8 лет назад +4

    What's the cost of uranium and where did you buy that

    • @lol49031
      @lol49031 8 лет назад +1

      People online sell it

    • @videolabguy
      @videolabguy 6 лет назад

      Cheap. Ebay. Duh!

  • @brainiac75
    @brainiac75  11 лет назад

    More sensitive setups in part 2 Exotic Elements vs. Magnet. I may redo this video. It's however quite a task and you may be disappointed of how little reaction there is even in a string setup. But at least I show the elements :)

  • @brainiac75
    @brainiac75  11 лет назад

    Coming in part three that I will release late in August. You can watch part two in the mean time: Exotic Elements vs. Magnet :)

  • @arturomena834
    @arturomena834 7 лет назад +3

    That tungsten cylinder sounded like a brick!!! 0__o

  • @philswift592
    @philswift592 7 лет назад +5

    I really wish he was my science teach

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you :)
    Remember to watch part 2 + 3 if you haven't already. Links in the description. Especially part 3 has some hard-to-find elements.

  • @brainiac75
    @brainiac75  11 лет назад

    It is readily available from smart-elements'com so you can get your own. I admit it is quite expensive - took some saving up for me. But I really wanted it and was lucky to find it for sale in their eBay-shop some years ago (they still regularly have it for sale on eBay - not right now though).
    Thanks for watching :)

  • @Rich_ard
    @Rich_ard 10 лет назад +4

    a guy on youtube channel taofledermaus does a bunch of videos on mecury and he cleans his mecury with a sponge but he has 5 pounds of mercury... you would need a small sponge.

  • @au5music
    @au5music 8 лет назад +6

    I didn't even know diamagnetism was a thing

    • @brainiac75
      @brainiac75  8 лет назад +5

      You're not the only one :) For some reason we are only really tought about the ferromagnetism in school. The other forms of magnetism are 'forgotten'.

    • @NwoDispatcher
      @NwoDispatcher 3 года назад

      @@brainiac75 what do diamagnets do when dropped down a copper pipe?

    • @priyanthisandarath1365
      @priyanthisandarath1365 2 месяца назад

      Oh no Au5 in here 😃😃

  • @brainiac75
    @brainiac75  11 лет назад +1

    In part two (Exotic Elements vs. Magnet) I use much more sensitive setups. When I have time I will redo some of the tests in this video - especially for the rare earth metals.

  • @brainiac75
    @brainiac75  10 лет назад +1

    It's been collected over many years so I kinda lost track of cost :/
    But all the elements in part 1-3 in this series I wouldn't sell for less than $2500-3000 (not really for sale - some of them are hard to find).
    Thanks for watching!

  • @MastorusGamingPlays
    @MastorusGamingPlays 10 лет назад +6

    The music :'(

  • @EternalDB1
    @EternalDB1 7 лет назад +20

    here because of part 5/5

    • @brainiac75
      @brainiac75  7 лет назад +11

      Nice :) This video is starting to feel old compared to my never videos but it still shows 41 elements in pure form.

  • @brainiac75
    @brainiac75  11 лет назад +1

    Not really forgotten - more an issue of money ;)
    In part two for this video - Exotic Elements vs. Magnet - I promise a gold sample for part three since gold is the most requested. Getting a visible sample of gold is just so expensive that I prioritized to get as many metal samples for the first part instead of just a few expensive ones.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    You may have experienced eddy currents (reaction with highly conducting metal and movement) which can be confused with paramagnetism (reaction even when metal and magnet is not moved). More about this phenomenon is in my video 'Eddy currents ad libitum'.
    Thanks for watching!

  • @thefattesthagrid
    @thefattesthagrid 9 лет назад +15

    so basically u wanted to show us ur variety of elements..?

    • @danielyorke5238
      @danielyorke5238 9 лет назад +1

      Obviously because every element didn't do anything

    • @danielyorke5238
      @danielyorke5238 9 лет назад +3

      Literally the most boring video ever😂😂

    • @ionelmarin4446
      @ionelmarin4446 9 лет назад

      Daniel Yorke id interstibg he know all metals of the planet

    • @Kingjeffkoch
      @Kingjeffkoch 9 лет назад

      GreenFlu TheWicked Did i miss something or is he really a show off, i mean gas pistol, ammunition etc. wtf.

    • @offbeat4772
      @offbeat4772 9 лет назад +4

      He has ammunition and stuff to show real world applications for that metal...

  • @brainiac75
    @brainiac75  11 лет назад +1

    Thanks for watching!
    The rare earth metals are rarely seen in pure form and their attraction to a magnet surprises many. I'll revisit them in an upcoming video with more sensitive setups and even include all of their oxides that may also react with a magnet ;)

  • @brainiac75
    @brainiac75  11 лет назад

    It is in part two: Exotic Elements vs. Magnet. Check my channel :)

  • @brainiac75
    @brainiac75  10 лет назад

    Thanks, and welcome to my channel :)
    Hope you remembered to watch part 2 and 3 in this series. I tried to improve them based on the feedback on this video.

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks for the suggestion. I have so far cleaned it somewhat with the simplest method: double-sided tape. It's not optimal but was quick and easy :)
    I have actually bought a new mercury sample from a source without broken glass (sphygmomanometers) ;)
    Thanks for watching and commenting!

  • @brainiac75
    @brainiac75  11 лет назад +2

    This is my hobby and filmed at home. eBay is my friend when I need to find the rarer stuff ;)

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you very much. I'm currently buying stuff for part 1½ in this video series where I show all the rare earth metals and their beautiful oxides in a more sensitive setup. While you wait you could watch part 2: Exotic Elements vs. magnet :)

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks :)
    I get very mixed reactions to this video but as long as the people that do like this video remembers to press like I'm more than happy. I have tried to improve some aspects in part 2 (Exotic Elements vs. Magnet). And I'm working on getting some really hard to find elements for part 3!

  • @brainiac75
    @brainiac75  11 лет назад +1

    It's one of my favorite metals too! It is used in the world's most powerful permanent magnets, in the lovely green lasers and it's compounds often have some interesting color-changing effects. I'm planning to show this in an upcoming video with neodymium chloride and neodymium fluoride.

  • @brainiac75
    @brainiac75  11 лет назад

    I do have some smoke detector americium discs (watch my video 'Radioactivity | My collection so far').
    The problem is that it's not the pure element/metal. It is americium dioxide lodged in a disc of another metal (often made of gold actually) so it will not show the magnetic property of pure americium.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Good thing that you know about conservation of energy!
    I am providing the energy in the setup. I am holding a 'lifter' magnet about the two discs of bismuth and by moving the lifter magnet up and down I can control the small magnet between the bismuth discs. If I made a rig that could hold the lifter magnet steady I could make a more stable levitation (balancing several forces: gravity, magnetic fields and diamagnetic repulsion).
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Full credits in the description under the video (click 'Show more' under the video).

  • @brainiac75
    @brainiac75  10 лет назад

    Well, they exist and are out there - just gotta search for them :) Like mercury in thermometers.
    Try searching eBay, Amazon or dedicated element webshops.
    Thanks for watching!

  • @TGears314
    @TGears314 5 лет назад

    Love that this is still available. Quality content from a much younger RUclips. Very nice to see the difference in your editing and stuff as well. Great work!

  • @brainiac75
    @brainiac75  11 лет назад

    Yes, it should be if you have a sufficiently large lifter magnet above the setup (and some seriously big slabs af bismuth). I doubt it would be spectacular though. It would still only be a few millimeters of levitation and therefore hardly visible with such a large magnet. It's better to use small magnets and pyrolytic carbon in stead af bismuth.
    Thanks for watching and commenting!

  • @brainiac75
    @brainiac75  11 лет назад

    Yes! As soon as I get more pure samples (including gold) I will make part three.
    Search the channel 'periodicvideos' videos about the elements to hear how the different elements are pronounced by chemistry professors - that's how I learned... :)

  • @brainiac75
    @brainiac75  11 лет назад +1

    Gold is coming in part 3 here in August. Meanwhile you can watch part 2: Exotic Elements vs. Magnet :)

  • @brainiac75
    @brainiac75  11 лет назад

    Full credits are in the description under the video. Click 'Show more'.

  • @brainiac75
    @brainiac75  11 лет назад

    It's moving because I hold a 'lifter' magnet above the setup. If I made a rig for the lifter magnet and balanced it perfectly it could levitate for hundreds of years (until the magnet loses it magnetism - partly because of background radiation).
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you very much :)
    I have just uploaded part three of this series - some very-hard-to-find elements so I think it's worth a look too.

  • @brainiac75
    @brainiac75  11 лет назад

    Not all elements are possible to get in visible amounts - even in a laboratory. But collecting the available elements still takes some dedication and cash. If you can live with tiny samples and not to high purity I think a couple of thousands dollars + shipping could get you all available elements. I have just started collecting the precious metals. Their price tags are painfully high :(
    Thanks for watching - more to come when I can afford it ;)

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks for noticing! One of the challenges with this video was how to show 41 elements in an interesting way without being to repetitive. The different backgrounds made this a huge (and expensive) project but I think it was worth it :)

  • @brainiac75
    @brainiac75  11 лет назад

    I do have some smoke detector americium discs (watch my video 'Radioactivity | My collection so far').
    The problem is that it's not the pure element/metal. It is americium dioxide lodged in a disc of another metal (often made of gold actually) so it will not show the magnetic property of pure americium.
    With that said it is fantastic that we have a man-made element in our homes in a detectable amount (and it is the decay product of plutonium-241!).
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    You're right: scandium + yttrium + lanthanides = rare earth metals. Should have clarified this in the video. I'll make it more clear in my upcoming video where I retest all rare earth metals in more sensitive setups including their oxides.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    It's the number of protons that determines an element from another. Electrons can vary for an element (called ions, but still the same element). The number of neutrons can also vary for an element (called isotopes, but still the same element).
    Thanks for watching!

  • @brainiac75
    @brainiac75  10 лет назад

    Most of it is from eBay (like the seller 'onyxmet'). But also from dedicated element webshops like smart-elements´com. Thanks for watching!

  • @jameswright1879
    @jameswright1879 9 лет назад

    Them slow movements hovering the metals over the magnet are unintentional ASMR triggers

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks :)
    I do plan to make an updated video with especially the rare earth metals and what they are used for. Telling in detail about all 41 metals would make a long video ;)

  • @brainiac75
    @brainiac75  10 лет назад

    No, you need a superconductor cooled to superconduction to shield like that.
    At normal temperatures you need something magnetic with high magnetic permeability to 'shield' (actually redirect) magnetic fields. Search mu-metal which is an alloy commonly used for magnetic shielding.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you very much!
    I hope to upload part 3 within the next month. Very-hard-to-find samples in part 3 ;)

  • @brainiac75
    @brainiac75  11 лет назад

    Yep. The old term rare earth metals is quite misleading because many of them are as 'rare' as cupper, nickel lead and tin in the Earth's crust.
    However they are rarely seen in pure metal form by most people because they are expensive to separate from each other and most of them will corrode very easily in the air.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    It's from eBay. There's a similar cylinder for sale right now for $240 (search 'tungsten cylinder 1 kg'). 7 out of 10 are already sold so it is quite a popular item despite the high price :)
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Palladium is attracted to a magnet (paramagnetic +540). I haven't been able to afford a sample of it... yet.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    The rare earth set is from smart-elements´com. Current cost is €385/~$500.
    Thanks for watching!

  • @MegaFitthora
    @MegaFitthora 11 лет назад

    Gosh, I get all excited getting a look at all these different metal-elements!

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you. Part two is even better (Exotic Elements vs. Magnet). Part three is coming very soon and will top them all in my opinion ;)

  • @brainiac75
    @brainiac75  11 лет назад

    I've heard that before so there must be something about it. I don't think so myself though - I'm not that badass :)
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    Exactly! Unpaired electrons gives a net charge that causes ferro- or paramagnetic effects. Paired electrons gives diamagnetic effects.

  • @brainiac75
    @brainiac75  11 лет назад

    No, magnetism is an effect between electrons. Radioactivity is from the nucleus (protons+neutrons) so no real linkage.
    Thanks for watching!

  • @brainiac75
    @brainiac75  10 лет назад

    They don't ship to Denmark and their pure uranium has been sold out for a very long time. They only have uranium ore for sale (mineral samples containing uranium).
    The sample in this video is pure uranium metal. If you want to see some of my stronger radioactive samples watch the video 'Radioactivity | My collection so far'.
    Thanks for watching!

  • @phoenizboiisawesome
    @phoenizboiisawesome 6 месяцев назад

    This was one of the first videos I ever watched on RUclips, and it brings back so many memories

  • @brainiac75
    @brainiac75  11 лет назад +1

    Then you should watch part 2: Exotic Elements vs. Magnet!

  • @MrTheorac
    @MrTheorac 11 лет назад

    Wow, thanks for taking the time to collect and set up every sample testing shot

  • @brainiac75
    @brainiac75  10 лет назад

    Because I'm Danish and forgot I was writing English (or the autocorrect corrected it to Danish - I don't know...).
    Thanks for watching carefully ;)

  • @brainiac75
    @brainiac75  11 лет назад

    There's a little more about mercury and gallium in my video 'Metal Meltdown' - not on the magnetic properties though :) I may try to show the weak magnetic properties of them in revisit-video with more sensitive setups.

  • @MontananMillionaire
    @MontananMillionaire 11 лет назад

    Amazingly nice set of samples. A very classy science setup...great video!

  • @brainiac75
    @brainiac75  10 лет назад

    The magnet is a neodymium magnet made of iron, neodymium and boron (~Nd2Fe14B). The strongest permanent magnet material we know of.
    Yes, alloying and combining elements can change the results completely. Magnetism is all about the electrons and their behaviour can be very different in pure elements and alloys/compounds with the element.
    That's why I try to find very pure element samples for this video series. In part 2 and 3 I have samples that are not pure enough to behave in the right way...

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks for watching and commenting :)

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks for watching :)

  • @brainiac75
    @brainiac75  11 лет назад

    Thank you for your story about mercury! In the good ol'days mercury really wasn't taken as seriously as today where each new study seems to suggest that ANY exposure to mercury is really bad. A little dramatic as your story proves ;)
    Pure elemental mercury is not madly poisonous (the fumes are dangerous in long term exposure though). It's the organic mercury compounds that builds up in nature that's the real problem.
    Thanks for watching!

  • @brainiac75
    @brainiac75  11 лет назад

    The 'neodymium' magnets are actually made of a crystalline material of roughly 14 parts iron, 2 parts neodymium and 1 part boron.
    It is a special, symmetrical arrangement of the elements in the crystal that give this material such powerful magnetic properties that no pure element has.

  • @brainiac75
    @brainiac75  11 лет назад

    Short and simplified: It is because of unpaired electrons. Paired electrons cancel each others magnetic moments - unpaired have a magnetic moment. The more unpaired electrons - the more magnetic moment. Many metals have more or less free electrons and therefore a magnetic moment.

  • @brainiac75
    @brainiac75  11 лет назад

    Thanks :)
    Very short and simplified: in matter with some unpaired electrons the magnetic moment of the electrons is not cancelled out so there is a para- or even ferromagnetic reaction. In matter with only paired electrons the magnetic moment of the electrons is cancelled out so they have a diamagnetic reaction.

  • @accemekun
    @accemekun 11 лет назад

    Fascinating. Pure information dissemination. I very much appreciate this demonstration.

  • @JuanArroyoRios
    @JuanArroyoRios 9 лет назад +2

    Congratulations. You make RUclips worth while. Great job.

  • @brainiac75
    @brainiac75  11 лет назад

    Yep, most people - without your knowledge - are surprised that many of the rare earth metals are visibly attracted to a magnet.
    Thanks for watching :)

  • @brainiac75
    @brainiac75  11 лет назад

    Not kidding. Try searching eBay. You may be surprised by what is available!
    Tungsten/wolfram is easily available though expensive ($240 for the shown 1 kg cylinder + shipping from UK - search for 'tungsten metal cylinder').
    Thanks for watching and commenting.

  • @drylabfab
    @drylabfab 11 лет назад

    I found myself most fascinated by actually seeing most of these metals for the first time.

  • @soulsbreaker
    @soulsbreaker 9 лет назад

    Watching this guy "pet" that magnet for 10 minutes, is one of the best decisions I took today

  • @iamsupersammie
    @iamsupersammie 11 лет назад

    wow that's alot of effort put into the backgrounds for each metal! awesome!

  • @brainiac75
    @brainiac75  11 лет назад

    Depleted uranium is sometimes for sale - usually on the US eBay (in the US up to 15 lbs is allowed without a permit). Unitednuclear'com also used to have some for sale but they seem to be out of it.
    The rare earth metal set can be bought on smart-elements'com.

  • @charleyt9558
    @charleyt9558 7 лет назад

    awesome video brainiac, keep up the good work

  • @brainiac75
    @brainiac75  11 лет назад

    You are exactly right! Most of the helium in a party balloon actually used to be part of uranium or thorium in the underground that decayed with an alpha particle. The alpha particle then grabbed electrons from its environment and became a helium atom. Quite fantastic - I love science :)

  • @cubaniton74
    @cubaniton74 9 лет назад

    Thank you for all your effort and hard work.