I just defended my dissertation on Fe-based superconductors, and I found this video incredibly useful. Understanding things on a deep technical level is completely different than being able to understand it in simple terms and communicate it easily to a general audience. Like Einstein said, if you can't explain something simply, you don't understand it well enough.
@@gregoryb9313 Look up imposter syndrome and be aware of it. If it doesn't affect you, that's great, but it's incredibly common in advanced degree STEM programs. Understanding it is the most important step in overcoming it.
@@gregoryb9313 Read, read (reviews, good books, old papers and books, not just new material rediscovering 100-year-old information), and get a post doc level tutor/sponsor. Learn math, physics, chemistry, electronics and programming. Do not waste your time if something can be automated. Learn to use as many instruments, methods and techniques as you can. Don't limit yourself to "how thing are always done". Hang out with people from your field and outside your department. Discuss. Publish not only your discoveries (for that good fame and cash flow), but also how you failed so that some one out there may not fail like you did or just finds a solution to your issue. Have fun while it lasts. There is a narrow and steep road ahead in science.
Thank you for making these maps, it takes subjects that are not necessarily digestible by everyone and breaks them down to where even non-physicists can understand them, all the while still being respectful of people's intelligence. Much appreciated!
Nice map and I enjoy your videos. I would like to mention an additional and interesting technology made possible by superconductors. Superconductors can be used to detect light on the single photon level with great precision. These superconducting nanowire single photon detectors SNSPD work by breaking down the superconduction of a wire when a photon impinges on a superconducting wire. They are around since the early 2000s and are used in the field of quantum optics. Currently the SNSPDs are setting the gold standard for single photon detection and can achieve a near unity detection efficiency.
@@alwaysdisputin9930 Not quite, the energy of a photon is big enough to break apart Cooper pairs. Once you Setup a hot spot with a normal resistive spot heating will kick in and the entire wire becomes resistive. The resistance can be easily read out. The layout of the super conductor line is critical to get it working. www.researchgate.net/profile/Chandra-Natarajan-2/publication/224836704_Superconducting_nanowire_single-photon_detectors_Physics_and_applications/links/00b49533b7632e3570000000/Superconducting-nanowire-single-photon-detectors-Physics-and-applications.pdf?origin=publication_detail
A very nice and well done quick overview over a complex field which hit the sweet spot of not to trivial to be wrong and not to complex to kick 99% of the people out very well. One thing for the back side of the map: the magic angle of bilayer graphene.
Great video! I am a PhD student in mechanical engineering and focused in thermal energy systems and sustainability. That being said, I have zero background in this subject haha. This was super informative and easy to digest. Keep making great videos!
I love your pictures about the map of the science series. How about making those maps not only a poster but also a mouse pad? it would be really fascinating and I'm sure that many people would like it.
There are books out there that break things down and give you the big picture just like you do in your videos. I appreciate what you do because those types of books have always been among my favorite.
yep ! I like vids like this, a guy who has temporarily reduced his clock cycles down to our level and made a informative vid on a tricky subject, could do another on the latest REBCO types and so on, especially the methods of attack on the critical field and current issues, sub most certainly earned, well done.
I work on a team that builds superconducting electromagnets and I do not understand them well yet. We have physicists and engineers who understand them so I am safe but.... I am really interested in learning all I can about everything related. This video made me happy. Your delivery is interesting. I wonder if you used sarcasm if it would be detectable.
Correction at 12:00 - SQUIDs aren't used in MRIs, MRIs use conventionally conducting receiver coil, rather they're used in magnetoencephalography and magnetocardiography machines.
Masterful job. I agree with your earlier assessment that its not always necessary to show the kill, but occasionally it drives home the point that wilderness living is bloody at times and food/hide procurement means killing. People need to see it done with a professional dispassion in order to to realize that there is nothing cruel about it, its just a part of the cycle of life. A predator killing prey is much messier and less humane than is a hunter dispatch, but both are thankful for what nature has provided.
Thank you for this video! I couldn't understand a thing from my graduate quantum mechanics course on BCS theory, and it's nice to finally know what it is about xD
Im surprised there's so many applications to civil engineering in one quantum field. Lossless energy grid? Levitating trains? Whats next, you'll tell me we put it in the roads and less people die in car crashes? Honestly you get me really excited about this metal.
"We've seen currents losing no energy over twenty-five years" Good to know there are superconductor experiments that have been running almost twice as long as I've been alive
I am a Korean-American. South Korea is my homeland, and I feel immense pride in knowing that brilliant scientists from my country have recently developed the LK-99. I hope for promising outcomes in the future.
Dude you are too good looking and your voice is mesmerising, I found it difficult to follow the superconductivity, I think I have to watch it few more times 😂❤️
Another future application I think could be is energy storage. If you can get electrons to circulate freely inside a superconductor with no resistance, wouldn't it be possible to let them run indefinitely, therefore storing their energy for later use?
That seems reasonable, provided the current stays under the critical current or whatever he said? Also, I think maybe that would induce a large magnetic field? Not sure whether or not that would pose a substantial engineering problem.
We got the room temperature superconductor without a quantum computer... the superconductors coming after the LK-99 Quantum Computer will be beyond sci fi
Dear Dr. Walliman, I am sorry, that I have to mess up your beautiful map, but superconductivity using magnetic levitation trains have been around for quite some time, the fastest of them are currently reaching 600 km/h in Japan. It's not future, it should be moved to current applications. Nonetheless, I greatly appreciate your work and am looking forward to seeing more!
Thank you Andrej, you are right. I should have looked this up before, rather than just relying on my memory which told me that the Maglev trains ran using regular electromagnets. But just looked it up and you are totally right! :)
1:45 (losing no energy over 25 years), As per my knowledge It was 2.5 years, In an Experiment conducted by "S. S. Collins" in Great Britain, and reported by Steve Van Wyk.
13:21 Superconducting trains are already a thing now. Currently holding the title of World’s fastest train at 600+ km/hr SCMagLev is in operation in Japan.
i was thinking that the non conventional super conduction could be the shape of the electron cloud being more "flat" in a direction so that the electrons path is seemingly shorter and less forces apply parallel to the moving direction. or it could be something to do with the harmonics of movement within the material. if for example it was easier for the electron to move in a certain direction during a period of it's spin syncing up with it's path etc. that being said i'm no physicist. your explanation of cooper pairs and why they cause superconductivity was really short and simple and better than i've gotten anywhere else so thanks for that it's what made these 2 ideas alot clearer in my head. what kind of patterns to look for. both of those theories were inspired by the directionality of super conduction in the bi-layer graphene at magic angles. also having a smooth electron surface would also explain why liquid helium has 0 friction. no extra movement into direction's tangendentials. could you test for me if 2 super conductors have less friction in their super conducting phase versus not?
No man - it’s like this: the electron cloud is normally like a mixed-up Rubik’s Cube where all the colors are mixed up - so what you gotta do is get all the little clock-elves ( which inhabit the magnetic field around it ) to solve the Rubik Cube on each side so that the atoms are lined up… And when the sides of the Rubik’s Cube colors are together, and all the colors are lined up in a straight line the clock-elves intentions are realised which makes their spirit flow uninterrupted ! And thus you have superconductivity, no problem !
At 6:10 I believe you mixed up intermediate state (not a phase, geometry dependent and macroscopic, usually found in type I SC afaik) and mixed phase (an actual thermodynamic state, microscopic effect found in type II SC).
Hello, everyone, I have a potentially stupid question. Please don't be mean; outside of TH-cam, my last physics class was secondary school. At 5:04, the phase diagram for water shows the solid phase of water _decreasing_ with pressure at a certain temperature -- implying water can turn from a gas, into a solid, then into a liquid with more pressure at the same temperature. I always thought it goes: gas, liquid, solid, because pressure basically mushes the particles together to stop them from moving much. What's going on here?
Altho, in my defence, looking at more detailed water phase diagrams, it seems different types of ice do form again at high pressures and certain temperatures (the solid phase looks like an L turned 90° clockwise), so I guess it’s not super simple!
I just defended my dissertation on Fe-based superconductors, and I found this video incredibly useful. Understanding things on a deep technical level is completely different than being able to understand it in simple terms and communicate it easily to a general audience. Like Einstein said, if you can't explain something simply, you don't understand it well enough.
Hey congratulations Ryan!
Congrats! And I think Feynman made his colleagues explain concepts with the simplest explanation possible to make sure everyone understood it.
Congrats Ryan! I just started as a first year grad student working on SC materials. Any tips?
@@gregoryb9313 Look up imposter syndrome and be aware of it. If it doesn't affect you, that's great, but it's incredibly common in advanced degree STEM programs. Understanding it is the most important step in overcoming it.
@@gregoryb9313 Read, read (reviews, good books, old papers and books, not just new material rediscovering 100-year-old information), and get a post doc level tutor/sponsor. Learn math, physics, chemistry, electronics and programming. Do not waste your time if something can be automated. Learn to use as many instruments, methods and techniques as you can. Don't limit yourself to "how thing are always done". Hang out with people from your field and outside your department. Discuss. Publish not only your discoveries (for that good fame and cash flow), but also how you failed so that some one out there may not fail like you did or just finds a solution to your issue. Have fun while it lasts. There is a narrow and steep road ahead in science.
Thank you for making these maps, it takes subjects that are not necessarily digestible by everyone and breaks them down to where even non-physicists can understand them, all the while still being respectful of people's intelligence. Much appreciated!
Hey thanks! Yes that's my goal :)
I don't understand
Bad metals making great superconductors is like an inspirational quote in itself
timestamps?
@@yash1152 7:14
@@yash1152 Also technically 3:16
Yeah, just remember, even if you’re not the best at everything, you may be great when being shocked at a high voltage
@@woofle4830 lol
Filming in the woods was a very cool idea...the greenery is pretty eye soothing...do such more often
Yes but it's also a weird story at the dinner table: "I went to the forest today and recorded myself talking about superconductivity"
@@BboyKeny
I had assumed he functionally lived alone, tbh.
Sica Panjesis
Honestly. I didn't think twice about it until he mentioned it.
greenscreen
"But... it's not magic, it's just plain old quantum mechanics" - Magician
"Just plain old quantum mechanics" ... so in other words, magic. Got it.
Well, some magicians use quantum physics as a way to prove the existence of magic.
We're approaching Marvel levels of scientific mumbo-jumbo
"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke
@@mar1o981 what?
Physics is the most beautiful, incredible and important knowledge ever created
Dont forget about mathematics!
Religion: Am i a joke to you
Me: Yes you are
@@orhx5529 Since, physics and mathematics are branches of science, they both are wonderfully awesome.
@@utsavbhurtel math isn't really science
Discovered I would say
This video is underrated, you deserve more views thankyou
Nice map and I enjoy your videos. I would like to mention an additional and interesting technology made possible by superconductors. Superconductors can be used to detect light on the single photon level with great precision. These superconducting nanowire single photon detectors SNSPD work by breaking down the superconduction of a wire when a photon impinges on a superconducting wire. They are around since the early 2000s and are used in the field of quantum optics. Currently the SNSPDs are setting the gold standard for single photon detection and can achieve a near unity detection efficiency.
@@alwaysdisputin9930 Not quite, the energy of a photon is big enough to break apart Cooper pairs. Once you Setup a hot spot with a normal resistive spot heating will kick in and the entire wire becomes resistive. The resistance can be easily read out. The layout of the super conductor line is critical to get it working. www.researchgate.net/profile/Chandra-Natarajan-2/publication/224836704_Superconducting_nanowire_single-photon_detectors_Physics_and_applications/links/00b49533b7632e3570000000/Superconducting-nanowire-single-photon-detectors-Physics-and-applications.pdf?origin=publication_detail
Always excited for all your maps!
A very nice and well done quick overview over a complex field which hit the sweet spot of not to trivial to be wrong and not to complex to kick 99% of the people out very well.
One thing for the back side of the map: the magic angle of bilayer graphene.
Great video! I am a PhD student in mechanical engineering and focused in thermal energy systems and sustainability. That being said, I have zero background in this subject haha. This was super informative and easy to digest. Keep making great videos!
Brilliant as always!
Now, to get that Nobel Prize...
His voice is therapeutic 😌
Fr 😌😌😌
I like how DoS also means Density of States, one of the key things studied in superconductivity
or digital operating system which is windows
or Disk Operating System
or the number 2
or Designated Organization Screening
Excellent video. Very interesting, informative and worthwhile video. This channel's videos are a must see for all thinking persons.
I wish YT would allow me to give a 1000 likes to each of your videos. Love them
DFTBA! Nerdfighter here, but Anton Petrov (What Da Math?!) brought me here. Great stuff!
Incredible! This content is actually explained at a pace one can follow whitout having to pause at every new subject. Please do continue this trend.
I love your choice of words at 10:44, made this field seem so not out of reach
yeah, he once said that he did smth (study or work) in this field - condensed matter physics
I love your pictures about the map of the science series. How about making those maps not only a poster but also a mouse pad? it would be really fascinating and I'm sure that many people would like it.
I really like your science videos. They all help me to step into a field I have never heard of, and they open me scopes of imagination!!
There are books out there that break things down and give you the big picture just like you do in your videos. I appreciate what you do because those types of books have always been among my favorite.
Yeah these are my favourite kind of books too
yep ! I like vids like this, a guy who has temporarily reduced his clock cycles down to our level and made a informative vid on a tricky subject, could do another on the latest REBCO types and so on, especially the methods of attack on the critical field and current issues, sub most certainly earned, well done.
My Map of Quantum Physics poster is my favourite thing in my room!!
Charles Hoskinson sent me here, Thank you!
Thanks!
Hey right back at ya! Thanks very much :)
I just started working with superconductivity and this map helped me a lot ❤❤ thank you
You are hilarious. Your dry sense of humor has to be part of your success algorithm.
0:12 Oh wow, it's so terrific how you've simplified it all!
Easy on the eye and great with words. What more can one ask for?
This channel is a goldmine. Thanks a lot for the content
Map of biomaterials next?
Omg yes love this
I work on a team that builds superconducting electromagnets and I do not understand them well yet. We have physicists and engineers who understand them so I am safe but.... I am really interested in learning all I can about everything related. This video made me happy. Your delivery is interesting. I wonder if you used sarcasm if it would be detectable.
I aspire to be as profoundly knowledgeable across a wide range of topics as this guy :)
Correction at 12:00 - SQUIDs aren't used in MRIs, MRIs use conventionally conducting receiver coil, rather they're used in magnetoencephalography and magnetocardiography machines.
People coming back to this video in late July of 2023 be like
Masterful job. I agree with your earlier assessment that its not always necessary to show the kill, but occasionally it drives home the point that wilderness living is bloody at times and food/hide procurement means killing. People need to see it done with a professional dispassion in order to to realize that there is nothing cruel about it, its just a part of the cycle of life. A predator killing prey is much messier and less humane than is a hunter dispatch, but both are thankful for what nature has provided.
Great video man! dos = density of states ... Easy to remember your channel and that it's connected to this type of content.
How did you get a sound that clear outside ?
The most clear overview I’ve seen.
Fantastic work. Your a credit to your parents.
Thank you for this video! I couldn't understand a thing from my graduate quantum mechanics course on BCS theory, and it's nice to finally know what it is about xD
As a PHY undergrad. this is the most inspiring video
The CSH paper has now be retracted, just thought you should know. Love the video!
That is impressive. A fully informative video. Many thanks :)
criminally under-rated
Im surprised there's so many applications to civil engineering in one quantum field. Lossless energy grid? Levitating trains? Whats next, you'll tell me we put it in the roads and less people die in car crashes? Honestly you get me really excited about this metal.
I mean, the high temperature ones aren't even metal, they're ceramic.
"We've seen currents losing no energy over twenty-five years"
Good to know there are superconductor experiments that have been running almost twice as long as I've been alive
sad to know there have been superconducting experiments running half as long as I've been alive....
Impressive that you just explained a senior college level topic in a way that anyone can get.
general question at 1:20 : is there a current produced exactly on the axis (i.e. in the center) of the eddy current vortex?
this man taught me more than my physics teacher in just 17 min
First time at your channel, and you get my subscription! You're impressive.
Might need to redefine "room temperature" superconductivity after the week Vancouver has just had, heh.
hmm??
@@yash1152 heat dome hit the west coast, temperatures in bc were upwards of 40 (up to 49.5)
@@riconaranjo. oh, ohkayy, got it. the room as in actual room thing skipped my mind
I am a Korean-American. South Korea is my homeland, and I feel immense pride in knowing that brilliant scientists from my country have recently developed the LK-99. I hope for promising outcomes in the future.
01:11 Induced current flows the other way of shown in the video
One day, all of your Maps will become a very nice book, I hope!
This was awesome, like most of your videos! keep up the great work man!
This video will age like fine wine once LK 99 is confirmed.
woah the forest background is wayy nicer.....keep it!
What a beautiful studio for doing wonderful work :)
Woo organics! Thanks for mentioning us
I always Like before I even hit Play, you never forget to be awesome 😎
This is amazing.
Thanks for this video, a gold mine of clear explanation
What a perfect video... well done!
Great video as always. I recently stumbled upon this channel and have been watching DoS Latest work and its really good. I loved it. Thanks
Time to revisit this topic, it's been 3 years and new discoveries have been made
Dude you are too good looking and your voice is mesmerising, I found it difficult to follow the superconductivity, I think I have to watch it few more times 😂❤️
Another future application I think could be is energy storage. If you can get electrons to circulate freely inside a superconductor with no resistance, wouldn't it be possible to let them run indefinitely, therefore storing their energy for later use?
That seems reasonable, provided the current stays under the critical current or whatever he said?
Also, I think maybe that would induce a large magnetic field? Not sure whether or not that would pose a substantial engineering problem.
You are doing amazing work with these videos (and maps!) 10x!
You rock. I love your delivery style
Your videos are very informative and help classifying all the different branches and fields ,systematically
wow! I'm a bit of a material science nerd. Heard some new, super-interesting stuff here. Nice presentation!
14:23 "I used the stones to destroy the stones"
Minecraft in a nutshell
I'm here for the algorithm! 👍🏼
Just saw an article today where science is fusing super conductors with semiconductors, exciting stuff
Can't wait for the map of engineering
Or electrical engineering to be precise
Excellent map bro thanks
We got the room temperature superconductor without a quantum computer... the superconductors coming after the LK-99 Quantum Computer will be beyond sci fi
Dear Dr. Walliman, I am sorry, that I have to mess up your beautiful map, but superconductivity using magnetic levitation trains have been around for quite some time, the fastest of them are currently reaching 600 km/h in Japan. It's not future, it should be moved to current applications.
Nonetheless, I greatly appreciate your work and am looking forward to seeing more!
Thank you Andrej, you are right. I should have looked this up before, rather than just relying on my memory which told me that the Maglev trains ran using regular electromagnets. But just looked it up and you are totally right! :)
@@domainofscience Thank you for kind response!
super congratulations for the video, is excellent
1:45 (losing no energy over 25 years), As per my knowledge It was 2.5 years, In an Experiment conducted by "S. S. Collins" in Great Britain, and reported by Steve Van Wyk.
13:21 Superconducting trains are already a thing now. Currently holding the title of World’s fastest train at 600+ km/hr SCMagLev is in operation in Japan.
Thanks, I was wondering, why he didn't mention it in the video!
I had to watch this to understand why LK99 is a big deal.
Bad for you, LK99 was a lie.
Great way of explaning 😎
Your voice is just so sweet!
Très fort………très,très fort MERCI
i was thinking that the non conventional super conduction could be the shape of the electron cloud being more "flat" in a direction so that the electrons path is seemingly shorter and less forces apply parallel to the moving direction.
or it could be something to do with the harmonics of movement within the material. if for example it was easier for the electron to move in a certain direction during a period of it's spin syncing up with it's path etc.
that being said i'm no physicist. your explanation of cooper pairs and why they cause superconductivity was really short and simple and better than i've gotten anywhere else so thanks for that it's what made these 2 ideas alot clearer in my head. what kind of patterns to look for.
both of those theories were inspired by the directionality of super conduction in the bi-layer graphene at magic angles. also having a smooth electron surface would also explain why liquid helium has 0 friction. no extra movement into direction's tangendentials.
could you test for me if 2 super conductors have less friction in their super conducting phase versus not?
No man - it’s like this: the electron cloud is normally like a mixed-up Rubik’s Cube where all the colors are mixed up - so what you gotta do is get all the little clock-elves ( which inhabit the magnetic field around it ) to solve the Rubik Cube on each side so that the atoms are lined up…
And when the sides of the Rubik’s Cube colors are together, and all the colors are lined up in a straight line the clock-elves intentions are realised which makes their spirit flow uninterrupted !
And thus you have superconductivity, no problem !
Thanks i am a nerd and this is well put together.
Another amazing video. Thank you for your work! Greetings from Berlin
I really enjoy your visualizations.
Should the phase diagram also include the Currie temperature? I don't know if superconductors also have a Currie temperature?
Your videos are so beautifully made!
7:42 Peak Helium! Get yours now, while supplies last!
This is super informative.
Thanks!
great video !!!! massive introductory insight thank you so much
At 6:10 I believe you mixed up intermediate state (not a phase, geometry dependent and macroscopic, usually found in type I SC afaik) and mixed phase (an actual thermodynamic state, microscopic effect found in type II SC).
At 1:13, shouldn't the induced eddy current be the other way?
Great video!
Thank you! This is great!
Hello, everyone, I have a potentially stupid question. Please don't be mean; outside of TH-cam, my last physics class was secondary school. At 5:04, the phase diagram for water shows the solid phase of water _decreasing_ with pressure at a certain temperature -- implying water can turn from a gas, into a solid, then into a liquid with more pressure at the same temperature. I always thought it goes: gas, liquid, solid, because pressure basically mushes the particles together to stop them from moving much. What's going on here?
Well, I'm no physicist, but I think it has to do with water-ice being less dense than water-liquid, unlike many other materials.
@@schalkvandermerwe3838 Thanks! Can’t believe I forgot ice floats on water because it’s less dense. Who’s the dense one now, eh? Ha.
Altho, in my defence, looking at more detailed water phase diagrams, it seems different types of ice do form again at high pressures and certain temperatures (the solid phase looks like an L turned 90° clockwise), so I guess it’s not super simple!