The Impact of Superconductors

[@Zerepzerreitug]

I got LK-99 problems, but resistance is not one of them

[@gingernutpreacher]

Ain't one*

[@derkatzenfuerst6077]

Nice.

[@geryz7549]

"There will be no resistance to the widespread adoption of superconductors" I see what you did there...

[@axiomostanes]

Resistance is futile

[@albertjackinson]

That was a really good pun!

[@Prbkkb]

Haha smooth

[@muninrob]

I had hoped that one would be too "cool" to resist.

[@HiroNguy]

Electrical puns are as easy as PIE.

[@thisguyoverhere6572]

So is anyone else back here after the recent paper about scientists creating room temperature superconductors (albeit at extremely high pressures)?

[@softb]

I am! Also a radiative cooling paint that’s colder than room temp

[@medexamtoolscom]

It has actually been known for a long time that under high pressure, pure hydrogen becomes a high temperature superconductor. This is just the first time anyone actually did it. Though they used a mixture of methane and hydrogen sulfide instead of pure hydrogen - basically swamp gas. But it's not useful. Consider this - they don't even use the kind that uses liquid nitrogen in MRI machines, they use the kind that uses liquid helium, simply because it's too much of an inconvenience dealing with the brittle ceramics that superconduct in liquid nitrogen, so they use the much more expensive liquid helium just for THAT. Consider that liquid helium is 50 times more expensive than liquid nitrogen, so if they're not even willing to deal with the relatively minor inconvenience of using the hard to shape and brittle ceramics to save 50 bucks, do you really think they're going to use materials that need to be put under 3 million atmospheres of pressure, in order to save 51 bucks?

[@chrisschembari2486]

@ThisGuyOverHere I am. I just watched another video about that breakthrough, and YT offered me this video right after it. kzbin.info/www/bejne/oX6ae2hshN10bNk

[@dracor.331]

Me

[@xbox70333]

I am here for room temperature and pressure lol

[@edpistemic]

To do list this week: -invent nuclear fusion machine -create warm superconductor -chill

[@Laotzu.Goldbug]

absolute chill

[@kindlin]

-Only a hundred billion degrees -Has warm in name, but is 35 kelvin

[@Baigle1]

If you can separate all the neutrons and nucleons of a heavy (high-Z) atom, you can get far more energy than the standard radionuclide decay chain. It takes a lot of energy input, and has a relatively low total output power (using modern accelerators and non-specific materials selection) versus piling a bunch of dangerous rocks in tubes until they heat up. Lanthanum Decahydride (LaH10) at extreme pressure (~170GPa, or 1,700,000 bar) is a type 3 superconductor at ~250-260 degrees Kelvin, -13.15 degrees Celsius, or 8.3 degrees Fahrenheit. Educated speculations assume that Lanthanum, Yittrium, or Calcium Hydrides may be able to achieve superconductivity at up to 320 degrees Kelvin, or ~116 degrees Fahrenheit at extreme (around 1 million atmospheres again) pressure. Other promising combinations are Cerium Superhydrides, Palladium Superhydrides, Thorium Superhydrides, Uranium Superhydrides, Metal Boro or Carbo-Hydrides, and other "hydrogen clathrate structures". The working theory is that the atoms are so tightly packed that any vibrations due to heat do not cause large lattice movements, thus providing stable tubes for paired up electrons to travel through. High temperature superconductors may be a good candidate for high efficiency electro-reactor designs, or as a replacement for any materials that emit, absorb, or transfer electrons via pressure or impulse. Right now we cannot maintain these near-room-temperature SC materials because they exceed the compression strength of even diamond anvils at ~100GPa. "Superconductivity at 250 K in lanthanum hydride under high pressures A. P. Drozdov, P. P. Kong, V. S. Minkov, S. P. Besedin, M. A. Kuzovnikov, S. Mozaffari, L. Balicas, F. F. Balakirev, D. E. Graf, V. B. Prakapenka, E. Greenberg, D. A. Knyazev, M. Tkacz & M. I. Eremets Nature volume 569, pages528-531(2019)" www.nature.com/articles/s41586-019-1201-8 If you want to learn more, you can study the 3 popular theories behind advancements in superconductors: Bardeen-Cooper-Schrieffer, Migdal-Eliashberg, and Density-functional-theory.

[@mrjava66]

One of the "coolest" things you could do with high-temp superconductors is that you could build a global magnetic field around Mars. Once you have a global magnetic field, you can lower radiation levels and increase atmosphere retention time. Mars would be MUCH easier to colonize with a magnetic field.

[@EvitoCruor]

I still don't understand why you would want to colonize it. I'd much rather build orbitals out of its moons.

[@andreiharkov5110]

Evito Cruor I don’t know why you wouldn’t when you haven’t even searched the Martian soil for any artifacts or resources that could surpass oil and nuclear energy and it’s the closest we have to earth

[@accidos]

@@andreiharkov5110 Nearly every valuable Resource is more accessible in Asteroids and Moons. Most heavy elements have sunken into the core of planets. This will not be different on Mars, even if we havn't done a lot of prospecting. There is a lot of cool manufacturing techniques and research that you can do in zero gravity, but not on Mars. If you are looking for opportunities for mankind, that are not accessible on earth, it's not a good idea to colonize a nearly identical planet but without atmosphere or magnetic field. For new breakthroughs better go to titan, the upper atmosphere of venus or even good old lunar.

[@andreiharkov5110]

Acidos you are not a scientist nor have you found any brand new resource nor have you been to mars and checked under neither the planet

[@andreiharkov5110]

Acidos that’s your inferior opinion similar to the people who thought people should have stayed in their respective countries thinking it was a bad idea to explore and find the opportunities beyond the shore line

[@nickfranssen6893]

Watching this a few days after the Korean Room Temperature Superconductor study came out. Crazy times we live in!

[@calicoesblue4703]

Lk-99 isn’t a room temperature conductor.🤷

[@listenatwork99]

Watching this now that a room temperature superconductor has apparently been created makes me super excited for what's to come. Hopefully it doesn't turn out to be a hoax.

[@emopanda116]

It's looking like we have a green light! Papers are coming though the works! Although defects ect have to be figured out. But hey it's looking like our life time kind of stuff

[@hoangvuification]

Uwu so rare to found on youtube

[@sensora9646]

​@@hoangvuificationOwo let's wish for the best UwU

[@hatman3445]

Don't wanna sound like doomer, but this kind of technology will take decades to implement, so don't get too excited.

[@azder4140]

​@@hatman3445 ww3 noticing you're not a complete doomer yet:

[@bornkinggamer3347]

I like how when you sort by new there are no comments for 10 months until LK-99 new dropped. What's funny is it was recommended to me.

[@skipperg4436]

Was recommended to me too. Makes sense actually. Kinda exciting that - if stars aligned - we might see one of sci-fi materials making its way into ordinary reality. What's next? Thermoelectric converters with good efficiency?=)

[@gatonegativa9582]

Today, 26 of july 2023, a paper by south korean researchers has found a way to make a superconductor with room temperature and pressure. Its has not been peer reviewed yet, but it looks legit.

[@Marf-yt]

Better than room temperature, up to 127C (261F).

[@damiangoryl9302]

The most important thing of this paper is that the method is extremally simple and easy to replicate, materials are dirt cheap, so in a few weeks we will know if it really works. I went back to this video because of this study. For anyone interested, the candidate for RTS is called LK-99.

[@shamgar348]

@@damiangoryl9302 Very excited about this! Just waiting to see if it can be replicated!

[@maomaomaimaimao]

Oh boy can't wait for black mirror type tech

[@ASlickNamedPimpback]

It was not, in fact, legit.

[@FiNiTe_weeb]

KZbin algo doing its thing lol

[@joelkreider5042]

Who else is here becusae of LK-99

[@alexanderthemagnifcent2573]

Me

[@belliduradespicio8009]

yup, time for a refresher

[@marcowen1506]

Just a slight clarification for the other viewers: a superconductor does not need to have current flowing through it to produce a magnetic field. In the presence of another magnet, the superconductor produces an (almost) equal and opposite field (Meissner effect). The Meissner effect is the origin of the levitation so often demonstrated in videos.

[@merlin9657]

Doesn't the other magnet induce a current in the superconducter that then produces the opposite field? Still, no current needs to be supplied externally.

[@marcowen1506]

@AreUKiddingMeTV Oh, this get's complicated rather quickly. In reverse order, there are several different types of SC and one of them (Type II SCs) will allow the field to pass through it in little channels if you really force it close to the magnet, but in doing so, the SC gets pinned above the magnet. The field does get excluded, but this isn't the same as, saying water is excluded from a waterproof coat. The outside magnetic field causes electrons in the SC to circulate and produce a magnetic field of the same strength but in the opposite direction. The two fields add up to a field of zero inside the SC - they cancel out. As is typical of physics, saying that something is zero isn't the same as the as saying it isn't there. Note that *both* the pinning and the repulsion can happen at the same time. As for the mobius strip, I would guess that they used a Type II, as they are easier to come by, or a Type I and pushed it horizontally really hard to let "centrifugal force" keep it on track. Actually, the first one is the most probable. PS, please do not call us eggheads. We don't like it, and it's factually incorrect as my head is the normal shape for a human.🙂

[@douglastjones9830]

Please be true! 2023 Korean team!

[@AlexJohnsonSays]

I'm sure this video will get a lot more traffic over the next few weeks

[@TheCiroth]

I went back and watched 99% of the channel as I worked on a novel. A lot of the science that Isaac talked about shaped the world as to what they could and couldn't do. Long term sleeper ship, O'Neil cylinders, hydroponics, and many others that I tapped into formed the base to make it sound real. Thank you for all the hard work you and your team have put into it.

[@baliiiiii]

This aged well LK99 please be real

[@itogisch]

This video will have an influx of LK-99 enjoyers. Who else is here with me on the hype train?

[@Simeeow]

Yup!

[@Rose_Harmonic]

Apparently people involved in LK 99 are racing to get credit, which is a green flag.

[@mqb3gofjzkko7nzx38]

They struck fool's gold.

[@MachineManGabb]

Search engine optimization lk 99 lK 99 Lk 99 LK 99 LK-99 Lk-99 lK-99 lk-99

[@MatthewKanwisher]

Who is watching this after the lk-99 news ?

[@MarshallTheArtist]

I imagine you're going to update us about a certain development in Korea...

[@yeager1957]

I’m surprised you didn’t make a community tab post with this video linked since LK-99 is **maybe** a thing

[@Thunderbr3wn]

I truly hope we someday get to live in these incredible potential futures you map out for us.

[@shannonlove4328]

We live in an incredible future right now. I’m 55 and compared to the technology of my childhood, we live in age of miracles.

[@unintentionallydramatic]

I hope I'll be able to celebrate IA's 250th birthday with him in earth orbit one day.

[@justarandomname420]

Its called Warhammer 40k. Noone wants to live there.

[@unintentionallydramatic]

@@justarandomname420 ...wot.

[@Dragrath1]

I hate to be a killjoy but with regards to Room Temperature Superconductors we are far away as the record holder from 2019 Lanthanum decahydride may have a transition temperature of 250K but unfortunately that is only at 150 GPa Issac kinda dropped the ball there with false hope there are interesting superconductors which might see practical use but that is probably not one of them. On the other hand if we can just get space based manufacturing there is so much we could accomplish. Though Nothing compared to what evidence based policies with independent oversight would accomplish on Earth since the reason we can't have nice things comes mostly down to a cocktail of corruption, inefficient and wasteful methods, bureaucracy, half done efforts, cognitive biases and gross incompetence/laziness. I think this is the reason so many technologies remain in the experimental phase because they aren't yet "idiot proof". >_< Sorry about my pessimism but While there are things to be hopeful for I think we need to acknowledge the challenges as well

[@saintjimmy2244]

Mate , I've been with you from around a thousand subs and it is still great. Keep it up. And thanks😊😊👌👌👍👍

[@reiito8727]

LK-99 I want to believe

[@sarcasmo57]

Looks like room temperature super conductors might actually be here now.

[@calicoesblue4703]

Nope, not yet

[@Dina_tankar_mina_ord]

Hey Arthur 2 years in the future. Scientist just claimed they had achieved room temperature conductors 27c. And so far things seem to checkout. gonna watch this now.

[@calicoesblue4703]

Nope 👎

[@aaronmcdaniel7768]

I've been watching since early 2018. I'm pretty sure I've seen everything except for the live sessions. I definitely remember when you used to have to warn people about your speech impediment using Elmer Fudd and how impressed I was that you overcame that issue so completely. I've had an awesome time on this channel and I look forward to the new content. Keep it up, Isaac!

[@ivoryas1696]

Aaron Mcdaniel Wholesome af 🥰

[@TheDavidKidane]

Are we going to revisit this now with the South Korean LK-99 Room Temp Superconductor

[@LordBitememan]

I've watched them all Isaac. Though I wasn't around for the first, I have been watching for years.

Ich au.

[@sorrow_Sam]

11:12 is when he actually starts talking about what to use them for

[@ASlickNamedPimpback]

cheers bud

[@calicoesblue4703]

Thanks

[@gymnopedie5641]

LK-99 better be real

[@stargazer7184]

I only found your channel in 2017, but I went back through your whole library and can say that I am proud to be among those who have seen every single episode. You are a legend, Isaac, and it has been a real privilege.

[@maxattacks25]

It is very easy to become jaded/cynical when bombarded by the negative news stream, but these always make me feel a bit more hopeful for our future.

[@feryth]

Time to review this episode once more

[@matthewandrae8245]

Thank you. Got chills when you started talking about multi-kilometer-tall buildings.

[@Datdus92]

BROS WE'RE SO BACK!

[@maomaomaimaimao]

WERE BARRACK

[@kevo9352]

Haven’t seen this video yet but today seems like a good time to

[@nick-hu1nx]

2 years ahead of his time, good futurism that.

[@dani-uf1eo]

You always make it sound like we are one breakthrough away from interstellar travel and I love it. I hope it happens in my lifetime.

[@isaacarthurSFIA]

:) Probably not 1, though it would depend on what the 1 was, but I do think we're close to the needed tipping point that will make space travel vastly easier

[@dansmith1661]

We would have, but certain groups of people won't allow us to have any fun.

[@rojaws1183]

If we have a breakthrough in life extension you may live for centuries and perhaps even long enough to see interstellar travel.

[@akcolade]

Ro Jaws any breakthroughs will be fairly expensive at first

[@chrisschembari2486]

@@isaacarthurSFIA YT brought me here after watching this video about a superconductor breakthrough. kzbin.info/www/bejne/oX6ae2hshN10bNk As to the cost of cooling long-distance superconductive transmission lines, I read (in an old book about electric vehicles) that lots of air gets liquefied to extract from it oxygen, some of the nitrogen, and other valuable gases, but then most of the nitrogen just gets released back into the air because there's no market for it. That's a waste of a lot of electric compressor power, which might be better used if we had a continuous demand for LN to keep the power lines' chilling sleeves topped off. Because of course, it's not enough to just have SC lines, we also have to ideally replace thousands of miles of unsightly tower-lofted lines with underground lines. I mean, what if an overhead power line cooling sleeve sprung a leak, and Bambi and Thumper happened to be frolicking about under that line? 😄

[@crashstarr6531]

I hate that this got reccomended to me again this week lol. Those articles coming out of korea have me in that 'don't give me hope' meme

[@randomman5188]

Its been replicated and confirmed by multiple labs

[@crashstarr6531]

@randomman5188 if you've got links, I'd love to read something more solid than pop-sci reporting! I'm not sure where to look to find the credible reports for something like this

[@shreyass5756]

​@@crashstarr6531 some have failed and some have succeeded but there is no conclusive proof for this because even the ones that they said have successfully replicated are simply claims. We have to wait for this race to end and some conclusive papers which are properly reviewed unlike those Korean papers

[@DaManBearPig]

Issac, you’re the best. Thank you. Thank you for giving me hope for the future. Your community loves you. You deserve it.

[@Michiganmayor420]

Issaic arther: releases this video Scientists 1 month later: hold my beer

[@vladimirlenin843]

This month scientists discover a superconductor that could work at 15 degree Celsius. But the material need to be under 15 mil psi of pressure

[@loljewlol]

That still an amazing achievement, comrade, that the ability to produce a superconductor above c it itself significantly impressive. Hopefully we discover a material that doesn't need such a high pressure.

[@danielbresnahan753]

Welcome to the future :)

[@Datdus92]

Flying cars were only 24 years later than expected!

[@erickansa5498]

Watching on the off-chance that #LK99 is more than a fool's hopium...

[@randomman5188]

Its been replicated and confirmed by multiple labs

[@Ethorbit]

@@randomman5188 you say this without pointing to any evidence

[@mqb3gofjzkko7nzx38]

@@randomman5188 Name one.

[@E1025]

Where my LK-99 boys at

[@randomman5188]

Its been replicated and confirmed by multiple labs

[@Breakfastststst]

Bow down to Koreans

[@mqb3gofjzkko7nzx38]

They are coping right now.

[@mikesmith1290]

I discovered Issac about a months ago, and am almost caught up with all the videos! This is by far the best channel on YT.

[@Wearableputty]

Isaac Arthur is a god send. A high level explanation of fascinating material and practical applications. I’m sure all of us here are curious intelligent minds and doing our own research sometimes is just exhausting. So nice to be able to watch Isaac and get trustworthy scientific facts

[@thesenate1844]

Its lovely to see all the new comments here after LK-99

[@tvcomputer1321]

i just want to say Isaac that in these bullsh*t times we find ourselves today, your futurism videos give me hope and inspiration

[@monjier]

I'm from New Zealand. COVID-19 doesn't exist here. It only exists at the border for us.

[@tvcomputer1321]

@@monjier I mean sure NZ is nice, but seriously enjoy your prison

[@monjier]

@@tvcomputer1321 😂 what prison? I can go wherever I want freely 😂 without any level of fear 😂 seriously, COVID-19 is like a past time for us. It's actually funny when we hear the numbers the other countries are putting out 😂

[@tvcomputer1321]

@@monjier can you leave NZ?

[@monjier]

@@tvcomputer1321 well, I never planned on leaving at all. Not this year. So I never bothered looking into it. There were people who left to go to South Korea, and people can fly into NZ, so I don't see why we couldn't leave. In fact, our airport was one of the busiest airports in the world during June.

[@exoplanets]

Congrats for reaching 250 episodes. 20:16 looking forward to our collaboration ! I hope perseverance finds alien life soon.

[@benbaselet2026]

Is it alien life though, if we happen to be related?

[@avanconia]

Sorry dude but we will always be on the cusp of finding life for the rest of our lives and it will not happen.

[@benbaselet2026]

@@avanconia You have a reason for that claim or you just like pessimism?

[@avanconia]

@@benbaselet2026 The fact that we won't find it is just as interesting as finding it could be. I won't insult anybody by qualifying basic math.

[@wackywonka1611]

@@benbaselet2026 watch the fermi paradox vids hes not saying there are no aliens just that we probably wont encounter much more than bacteria

[@NN-eh1fq]

I’m here only since 2017, but back then I’ve watched all the previous episodes and I suppose almost all of the current ones since then. Thank you, Isaac, for all the inspiring thoughts and a great time.

[@charliebachelder4883]

Issac, I saw your videos three years ago and was fascinated . You have opened my mind so much. Recommending so many incredible sci fi stories and explaining so many awesome concepts and principles. You have opened my mind sir. Thank you

[@Excellerator420]

Congrats on 250 i cant wait for the next 250. One bright side to my job is being encouraged to use headphones in a factory atmosphere. So I have 10hrs a day to fill with podcasts and audiobooks. Being from Dayton area this channel was a godsend. For the entertainment value and helping to support a fellow Ohioan. Keep up the good work man and stay safe out there :)

[@isaacarthurSFIA]

Good old Dayton, other corner of the state but I was a research intern at Wright-Patt AFB back in 2000

[@Fearmylogic]

I would love to see ION drives equipped with super conductors? Imagine, being able to shoot gas out of an engine, and the speed at which you are firing that gas, is only limited to how much energy you can collect. With large enough solar panels and batteries, you could throw fairly heavy atoms of Argon/Xenon at speeds nearing the speed of light. At those kinds of energies, single atoms of gas would produce levels of thrusts that could be measured. A fairly small amount of gas would let you get to some amazing speeds! Imagine firing an Ion drive space ship from a rail launcher, then part way through, the drive is turned on, slowing it down, so it can reach a planet, moon, or asteroid. It would save on gas, it woulds save on the time needed to speed up the ship up to cursing speed, we could charge the batteries before the launch, and just use the gas for slowing down, or Slowing down, and a return flight back to base! The possibilities!

[@serpentphoenix]

If you have superconductors you can also probably do fusion rockets instead of ion drives.

[@Azilythe]

Pretty sure those are the fusion powered ion drives in the show Expanse

[@Niskirin]

@@Azilythe Along with a bit of handwavium magic.

[@TruAnRksT]

Ya can never go faster than the shit you're spewing lad. If that's near light speed that's all shes got. Might take many years to get up to speed though. Not enough pushin in the cushion. Such things will never get us there.

[@darkstorminc]

I would rather have a working warp drive lol

[@Etheoma]

Room temp super conductors = fusion Like seriously fusion reaction rate goes up linearly with temperature and area of the inner reactor, by increases by the power of 4 of the magnetic field strength so double the field strength. Double your field strength and you get 16 times the power, and room temperature super conductors means you can pump a lot of power into them before you lose super conductivity.

[@SoSezTheDude]

Just want to say congrats on hitting the 250 mark! I remember way back when I first found your vids, you would use an image of Elmur Fudd with an apology for your speech impediment and asking folks to use subtitles at the beginning of every video. Been a while since I saw that, you've come so far with your speech that I can barely hear it now. Here's to another 250, cheers! 🍻

[@esra_erimez]

You are a class act.

[@johnrockwell5834]

The ultimate goal of all technology is Beauty,Truth and Goodness.

[@TruAnRksT]

Spoken like a true Rockwell. Don't know what that would be like but good comment.

[@johnrockwell5834]

@@TruAnRksT Renaissance architecture for one.

[@donaldhobson8873]

Where did that 50% of electricity lost in transmission number come from? This source puts it at 6 to 10 % insideenergy.org/2015/11/06/lost-in-transmission-how-much-electricity-disappears-between-a-power-plant-and-your-plug/ (In the USA grid)

[@Laotzu.Goldbug]

Yeah, it does seem incredibly High to me. If that was the case you would think power lines would be catching on fire all the time.

[@Sigma00000]

You beat me to this. Good for you for calling out misinformation. I'm going to throw in a few lessons from my electrical engineering classes here to explain why loses are so low. Because it takes engineering to get the losses that low. Transformers (you've probably seen them as those big bulky things on power line poles with what kind of looks like two stubby antennas (they aren't antennas btw)) are a great way to reduce wasted energy. From a linear element perspective (meaning this is a bit of a simplification), transformers change the apparent resistance. Increasing the voltage drops the apparent resistance. Stepping the voltage back down increases the resistance again. This is why they up the voltage leaving power plants and then step it back down closer to residential centers, so your appliances actually use the electricity. Modern transformers can be 95% to 98.5% efficient. However resistance isn't the only thing that saps power. You lose power in power lines primarily to two reasons: resistance and inductance. Super conductors removes almost all resistance (I think they still have something like 1e-35 ohms of resistance, double check that though). Inductance refers to the creation of magnetic fields from running current. With direct current (DC) like current from typical batteries, the current flows consistently. It will just build up a small magnetic field (e.g., wrap a wire around a nail to build an electric magnet), and stop losing more energy to the magnetic field once it has built up. However alternating current (AC), which is used in most power grids, causes the current to change direction. Because it constantly changes direction, the magnetic fields constantly changes direction, leaking power constantly. This isn't a lot of wasted power, but it adds up over long distances. To reduce energy lost to inductance, European cross-country power grids have been adopting high voltage DC power transmission lines. Please forgive me if I get any of the details wrong I'm not a European. This is a little more complicated as you cannot scale voltage using transformers on DC power directly. But it basically works by generating power either as AC or converting it to AC -> use a transformer to up it's voltage (reduce apparent resistance of down stream elements) -> convert to DC (using e.g., a rectifier, diodes, and capacitors) -> transmit long distances -> convert back to AC (with what is called a power inverter) -> transform the voltage back down (so appliances can use the power) -> deliver to your home/work/school/etc. Most of the losses in efficiency are from all of these conversations, not transmission anymore. Edit: added the name of the element that changes DC power to AC power. Included a few other details.

[@richardbloemenkamp8532]

The number would be quite high if you would wanted to transport electricity between continents e.g. from places near the equator (solar energy) to place further from the equator where most people live. Your numbers are lower because in the US the energy companies try to avoid long-distance transportation at the cost of less-ideal energy generation.

[@Fleurlean4]

Michael V A more condensed version of this would reach more people. Presentation skills matter (especially for engineers).

[@nilskrumnack8699]

Or also the EIA directly: www.eia.gov/tools/faqs/faq.php?id=105&t=3

[@lindenmorgan2941]

Can we get a follow up video on LK-99?

[@Bob-lr2xp]

Isaac, I want to ask for your advice. I'm in my 30s working a job that's unfulfilling but pays well enough to support my family. But all my life I never knew what I wanted to do as a career. But watching your videos over the last few months is making me yearn for a future where humanity can operate in space, and I wish we didn't stop the progress we made during the space race as we could've had decades worth of technological advancement compared to today. I want to help put humanity on the moon, having industry, mining, and manufacturing outside of Earth. How can I help make that happen? What should I go back to school for, and what line of work can go towards such a goal outside of working for Space X? Physics, engineering?

[@VainerCactus0]

Put as much money aside as possible and google what kind of maths you would need to learn, then start teaching yourself that maths in your spare time. After a year, you'll have tons stashed away and know most of the maths already.

[@petert969]

No need to go back to school! Spacex doesn't worry about degrees, they care about competency!

[@th3ranger]

How about learning about economics, it is the real limiting factor for industrializing space. If an activity isn’t profitable it won’t persist for long periods of time.

[@Rattus-Norvegicus]

I say that you should spend your extra time/money/energy/etc. with your family. It may be too late for you but it definitely isn't too late for your children.

[@martinwillumsen2574]

Not sure if I found the channel in 2015 or 2016, but when I did, I binged everything that at least had not been the older version of a remake and I have been here ever since and to my knowledge have watched every regular and bonus episode. Not much for livestreams though, only watched the first few of those. Love the channel and I do not plan on leaving any time soon

[@MrMatklug]

LK-99 gang rise up

[@jonathanhensley6141]

Another great video by issac arthur on my day off from work. I have been researching superconductors to see which materials would be ideal.

[@failedleopard3685]

Congratulations on reaching 250 weekly episodes! I've always liked the thumbnails you used for the episodes, any plans on making some of them or make new ones solemnly for merch?

[@TheyCalledMeT]

250 oh boy .. i remember very well the super scatchy graphics of the early upwards bound EPs .. (still my absolute favorite outro music) happy it worked out so well for you, keep the good stuff coming!

[@mxmstrj]

Who is here bc LK99

[@maxminton3693]

Please be real please be real please be real please be real please be real

[@RudeAlert]

I would like to note that I have watched every single episode up to this one so far, and in upload order no less. Keep up the amazing work Isaac!

[@zubiddydoodoopop]

Now that LK99 is a thing and seems to mostly function at 70 degrees Fahrenheit as a superconductor, are you convinced we finally have a material that can potentially help produce super constructions as mentioned in this video or would we need just a little more thermal wiggle room to achieve the best results?

[@WokeandProud]

No because ot has the material property of a brick you can't make wires out of it no flying trains or cars sorry.

[@petrkinkal1509]

And combine what WokeandProud said with the fact it also isn't superconducting.

[@vincent_hall]

Ooh, this is typical now! Very exciting!

[@glowerworm]

I really like your voice, it such a nice, natural-feeling narration voice.

[@glowerworm]

@@AloysiusOHare-fk4yq are you on drugs?

[@LiteStranger]

@@glowerworm Isaac speaks like that, listen closely 💀

[@dylanneely91]

The only channel that I've rung the bell on.

[@RAC91]

Who is here after the new lk99 discovery??

[@mj6463]

Hey issac, I’ve been watching the channel since junior high, I’m a high school senior now, I’ve watched every vid, most twice, watched this one twice and clicked now as I remembered I forgot to leave this comment after my second time, love the channel, keep up the great work! Ps I found the channel by scrolling through KZbin out of boredom in my money matters class in junior high, it became tradition to come in, turn on the computer, start a vid from you, and minimize it (we had headphones on) so I could do my work without the teacher noticing lol.

[@marlonlacert8133]

0:10

[@marlonlacert8133]

@R DOTTIN Yeps I found it charged up quite fast. LoL.. Have a great day!

[@medexamtoolscom]

Did you hear about the giant spaceship that arrived, in the shape of a giant coil of wire? They arrived and announced "inductance is futile". Then another spaceship arrived that looked like 2 big plates of metal with a separation between them, and they told us "capacitance is futile".

[@Buffaloguy1991]

We're back baby!!

[@its_dc_]

here after LK-99

[@Ramiromasters]

I've watch all episodes and many 2 or 3 times, sometimes even for background... Is not shameful, its okay to be who you are and stand up for your chosen lifestyle!

[@kevinritter6448]

Imagine the impact of super conductors on heat transfer. Every room in your home efficiently reaching your ideal temperature in a few minutes. Firefighters could fire a superconducting net onto a fire and channel the heat away into a steam tank on the truck. They could recycle the heat in a steam turbine to power the truck. Cook tops with smart sensors could instantly dump their heat into a reservoir when detecting a kids hand getting to close. Or people could carry a tiny bit of super conducting cable with a resistor in the middle to use as an instant, sparkless fire-starter when camping. Wrap the resistor around the kindling and attach the ends to a small battery, viola camping made easy.

[@hithere5553]

Firefighters turn into firebenders

[@Python343]

your videos literally help me with my depression, thanks isaac.

[@ScrewDrvr]

Fermi Paradox series is amazing, I love the topic and your views. Keep up the amazing work.

[@isaacarthurSFIA]

Glad you enjoy it!

[@TheAMadMan]

We all know the first thing you do is get comms up, but you forgot to mention the coolest property of superconductors imho. A short superconducting antenna acts like a much longer one. I'm talking a mater acts like kilometers. They are currently used on submarines for low frequency communications.

[@TheAMadMan]

@BBB H this seemed like a decent intro to me: ecjones.org/hightc.html

[@elkadillo4511]

LK-99 🙌🏻🙌🏻🙌🏻

[@Cyberplayer5]

Issac you don't disappoint,Great video on a range of things superconductors would change in the world.

[@FloatingWeeds2]

Great work. Isaac. I've been here since a few months before you started talking about archipelagic and bathypelagic worlds and their propensity to harbor life. Love all your super technical videos that have tons of tables and numbers in them. Thank you again for years of hard work to inspire and teach. I know my life and worldview and pursuits have all been impacted by you. Thanks again, and have a great week 😝 -jared

[@Dariushellstrome]

Congratulations I found your channel late 2019 and enjoyed many past episodes looking forward to the future

[@venmis137]

I'm in a physics lesson right now and we've been tasked with researching superconductors... guess this counts :)

[@DamnSpiders666]

The fact that this channel get so many views and likes as it does before I even get the chance to view newly uploaded content, even when keeping up with the channel to the best of my ability, gives me hope for humanity

[@wolfvale7863]

Early atom catches the electron! Like you I thought the future was a dumpster fire orbiting the sun. Arthur reminds us this may not be so.

[@adolfodef]

It is my birthday! -> What a great GIFT this is (also episode number 250!).

[@TruAnRksT]

Happy um kitty day? I love me som cats. They love me too, I've taken half the next door woman's cats in because they just fucking love me. And not her.

[@halo3soap114]

Really interesting going back and watching this after the LK-99 paper came out.

[@randomman5188]

Its been replicated and confirmed by multiple labs

[@ns2358]

"There should be NO RESISTANCE..." I love you, Arthur!! :D

[@SmoochyRoo]

Oh how relevant this video is currently, algorithm knows what's up.😊

[@silverwurm]

Where are you getting the 50% power losses to transmission lines from? The sources I’ve seen list the loss as between 5% & 15%, depending on the system in question.

[@francoislacombe9071]

It's not just the big transmission lines, it's the smaller distribution ones, the transformers, the switches, and all the hardware between the power stations and the users.

[@davidegaruti2582]

@@francoislacombe9071 wait , would superconductor make AC obsolete ?

[@francoislacombe9071]

@@davidegaruti2582 Probably. And don't quote me on that, but I think AC doesn't work well in superconductors.

[@zamundaaa776]

Yeah, the general efficiency of the power grid is usually estimated to be around 90% from generator to user. Maybe if we factor in the theoretical losses from energy storage (or lack thereof) for renewables it's less. That could be eliminated with superconductors and good global coordination. @you'll have a stroke reading this well, pairing a superconductor with AC should work just fine, just not as well as DC because the current at which the superconductor stops superconducting is lower IIRC but it is simply not the smartest move. AC radiates power away (because of the changing magnetic field) and is very complicated. The complicated part is that even at low frequencies like 50Hz electric field waves bounce back from cable ends. So that means if you have the exact right cable length the waves will cancel out (giving the generator an effective short) or at another length they will add up (double the voltage, destroys consumers) and the voltage can vary from point to point as it's possible to have a "standing wave"... The power grid is rather hard to run because of that. DC is really easy in comparison.

[@davidegaruti2582]

@@zamundaaa776 so pretty much every existing alternator would have to be converted into a dynamo/attacched to AC/DC converter in order to supply this power supercunductive power grid ?

[@rodneyericjohnson]

watching this again today for some reason

[@LucasDimoveo]

Anyone here after the announcement of room temperature super conductors from the University of Rochester?

[@GRASBOCK]

How do these active support things to work around strength limits work? Are there references for 16:20?

[@fiiral5870]

Thank you for all of your awesome videos

[@Overtime123]

I have watched every episode on your channel. When I found it 2/3 years ago I went back to the beginning!

[@sulljoh1]

This isn't looking so futuristic these days