What is the Strongest Magnet We Possibly Could Make?

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Publicado 2022-12-26
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The bigger the electrical current, the more powerful the magnetic field. And we've learned to harness the power of those magnetic fields to do things like accelerate particles and suspend plasma!

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Sources:
Iseult magnet
www.ncbi.nlm.nih.gov/pmc/articles/PMC1121941/
www.cea.fr/english/Pages/News/Iseult-MRI-Magnet-Re…
www.sciencedirect.com/science/article/abs/pii/S107…
www.ncbi.nlm.nih.gov/pmc/articles/PMC5704893/

MIT-CFS magnet
news.mit.edu/2021/MIT-CFS-major-advance-toward-fus…
www.energy.gov/science/doe-explainsnuclear-fusion-…
www.britannica.com/science/nuclear-fission

LHC magnet
www.home.cern/science/engineering/pulling-together…
www.lhc-closer.es/taking_a_closer_look_at_lhc/0.ma…

SHMFF magnet
www.eurekalert.org/news-releases/961842
iopscience.iop.org/article/10.1088/1361-6668/ac3f9…
nationalmaglab.org/about/maglab-dictionary/hybrid-…
www.mdpi.com/2312-7481/8/6/64/htm#B26-magnetochemi…
www.science.org/doi/full/10.1126/science.1096524?c…

UTokyo magnet
aip.scitation.org/doi/10.1063/1.5044557
bigthink.com/hard-science/magnetic-field-record-la…
   • Magnetic Field Record Set With a Bang...  

Images:
commons.wikimedia.org/wiki/File:VFPt_cylindrical_m…
   • How Does an MRI Scan Work?  
news.mit.edu/2021/MIT-CFS-major-advance-toward-fus…
www.flickr.com/photos/eyesteel/32476489303/
cds.cern.ch/record/905940
home.cern/resources/image/accelerators/lhc-images-…
commons.wikimedia.org/wiki/File:LHC_helium_tanks.j…
cds.cern.ch/record/39304
commons.wikimedia.org/wiki/File:VFPt_electric_and_…
www.home.cern/resources/video/accelerators/quadrup…
commons.wikimedia.org/wiki/File:National_High_Magn…
   • Magnetic Field Record Set With a Bang...  
www.u-tokyo.ac.jp/focus/en/press/z0508_00008.html

Five Of The Most Powerful Magnets On Earth

Todos los comentarios (21)
  • @SciShow
    Visit brilliant.org/scishow/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription.
  • I liked how you did everything you could to avoid saying the words "Flux" and "Capacitor" together. Impressive.
  • @chew_1993
    I’m more impressed that someone was like “hey what if we use a big magnet to align people’s protons”
  • @TAP7a
    I remember studying for exams we take at 16 in my country and at the time 3-4T was considered absurdly strong. Starting off with 11T really sent home how far this one niche has come in just a decade or two
  • @mattalevine
    12:49 "So that explosion was actually a sign of great progress!" What an amazing sentence.
  • @tobiasheal
    The first magnet, ISEULT is located in the CEA near Paris, where I work. I work I a completely different field so it's cool to see a bit about the other sorts of things that happen in the centre.
  • @whistlinturbo
    I'm a bit sad that you didn't mention the magnets used to separate Uranium-235 from Uranium-238 during the Manhattan Project. When they flipped them on for the first time, they ended up ripping out some of the giant fasteners holding together the steel beam structure of the warehouse they were in.
  • @ryandoyle3413
    My dad designed MRI machines for 25 years, up to 7T. He was so glad to not be in charge of keeping the liquid helium in the coils since it's a superfluid
  • @4Rhino60
    I really liked how detailed you explained the actual purpose of those magnets love your videos in general, but this one was outstandingly interesting!
  • @PartiallyCooked
    I like how we can just casually create, configure, and destroy very important magnetics fields at any point we want.
  • Some years ago, I toured the imaging department at Oregon Health and Science University. They have a 12 Tesla MRI, but it is only large enough scan a rat.
  • @Amboss39
    I have an uncle who researched from MIT at Cern and led a group. Therefore, I was allowed to visit Cern and went for a walk in the ring and stood in front of the huge magnets that measure the collision of the particles. It was very special.
  • Today I learned that Doc Brown was actually onto something back in the 1980s.
  • @-Slinger-
    If/When you do an episode on fusion, will you look into Helion's method as well as the tokamaks please?
  • @emerald2805
    I love how excited Hank gets about science.
  • @mesillahills
    I worked at Delco Remy Division of GM in Anderson, Indiana when Dr. John Croat invented the Neodymium-Iron-Boron magnet. I actually got to know him well. This was the so-called Magnequench rare-earth magnet. Later, I was trying to develop an injection moldable grade of powder for them. After I retired, Magnequench was sold to the Chinese. A man named Joe Lehman built and managed the first GM Magnequench plant in Anderson, Indiana. FYI - Magne (big) + quench (cool). If I remember right it was over a million degrees per second. You were never a genuine MQ engineer until you got your first "finger between magnets" blister. Those suckers were unbelievable.
  • @adamtschupp9825
    I've always wondered, if you took a permanent magnet and stuck it on the ceiling, will it eventually weaken and fall as it uses energy to resist Earth's gravity? How long would that take?
  • @k.l.manring2083
    So interesting! I was thinking that the magnets of MRI machines had something to do with the iron of the red blood cells but that was as far as I went with that. Knew nothing about them needed to be cold. Hmmm...
  • @JasonMTuftsify
    I'm one of many millions, but thank you for the great video. This maybe not my field of experience, but none the less just learning more has always been a goal of mine which I have to say this video brought new light to just how important magnets are and what they can be used for/use.