Black Holes Might Not Be Objects | Black Holes Part 1

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  • เผยแพร่เมื่อ 2 มิ.ย. 2024
  • The properties of black holes that make them so bizarre.
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ความคิดเห็น • 1.5K

  • @JCMills55
    @JCMills55 2 ปีที่แล้ว +1187

    I retired a couple of years ago and finally have the time to dedicate to all the fantastically interesting subjects I've only been able to give a passing glance at before. Thank you.

    • @jcchappy1
      @jcchappy1 2 ปีที่แล้ว +91

      Enjoy your retirement.

    • @chensenhan
      @chensenhan 2 ปีที่แล้ว +14

      You've wasted your life. It seems like you didn't like your job

    • @edderkoppepigen
      @edderkoppepigen 2 ปีที่แล้ว +177

      @@chensenhan That's extremely rude and not even remotely logical

    • @PMA65537
      @PMA65537 2 ปีที่แล้ว +4

      @@chensenhan Check out Goodbye Mr Chips, Hobson's Choice, The Wrong Box and more films!

    • @chensenhan
      @chensenhan 2 ปีที่แล้ว +9

      @@PMA65537 I have fear of wasting my life and regret. I want to do things I interested

  • @robinhodgkinson
    @robinhodgkinson 2 ปีที่แล้ว +740

    One thing that black holes make me appreciate is just how much empty space there is between particles in normal matter! No wonder neutrinos can travel through the earth and not strike a single atom. At that scale it’s virtually all space! We have a very distorted view of what “solid” means.

    • @briant.v.5799
      @briant.v.5799 2 ปีที่แล้ว +9

      Well said

    • @Hackanhacker
      @Hackanhacker 2 ปีที่แล้ว +2

      Mmmh ... Well said :D

    • @MattJarvis0
      @MattJarvis0 2 ปีที่แล้ว +16

      True and so fascinating - although how did black holes help you appreciate this?

    • @robinhodgkinson
      @robinhodgkinson 2 ปีที่แล้ว +47

      @@MattJarvis0 Perhaps I should have said neutron stars - wanna be black holes! The creation of hyper dense bodies. Black holes go too far and just break the “rules” - infinite density? What does than mean in any sense of reality we can comprehend. At least neutron stars can be explained with physics we experience, albeit in an extreme form.

    • @Hackanhacker
      @Hackanhacker 2 ปีที่แล้ว

      @@robinhodgkinson 😜

  • @dontworry4945
    @dontworry4945 2 ปีที่แล้ว +78

    It blew my mind when my mom wanted to show me a video that she thought I would like, and she put on one of your videos! You have independently attracted the approval of EVERY SINGLE PERSON in my family. We didn't even know that each other watched you. You've positively effected so many people with these videos. Teaching complex concepts with such elegance and simplicity is no small feat. I will always be grateful for you, your team, and this channel. Thank you, Alex, and thank you to the entire Astrum team. ☺

  • @Peoples_Republic_of_Cotati
    @Peoples_Republic_of_Cotati 2 ปีที่แล้ว +557

    A weird thing about crossing an event horizon: part of the reason you can't go back is because the rest of the universe is gone. Time stopped for the crosser; so the rest of the Universe sped up until it more or less instantly reached the effective end of time (no other frame of reference).

    • @walkerwilson3298
      @walkerwilson3298 2 ปีที่แล้ว +222

      That just made the idea of falling into a black hole 10x more terrifying

    • @odalicio
      @odalicio 2 ปีที่แล้ว +183

      Whoever dies by supermassive black hole is also the last human to ever live. If the big bounce theory is right, it gets whackier - as you fall, you watch the universe fall in with you into darkness

    • @koffieslikkersenior
      @koffieslikkersenior 2 ปีที่แล้ว +47

      @@walkerwilson3298 You would be looooong dead before reaching the event horizon. I'm not that scared of 'falling' into one, what terryfies me is what they represent. You'd think the concept of a black hole would be an indicator that there's something wrong with GR, but then we've found proof that they actually exist

    • @iliaadamanthark8336
      @iliaadamanthark8336 2 ปีที่แล้ว +29

      But how? I mean speed of light is still the same through every observer right? So you cannot speed everything up to that extreme, or maybe our understanding of relativity is just not completely true.

    • @tobiaswilhelmi4819
      @tobiaswilhelmi4819 2 ปีที่แล้ว +45

      @@koffieslikkersenior Why would you be dead if you fall into a supermassive black hole?
      Also: it is not an indicator that there is something wrong with GR, but that GR is not complete. In the same sense that Newtonian Gravity is not wrong, just incomplete.

  • @SchmuckYourself
    @SchmuckYourself 2 ปีที่แล้ว +44

    Never been this early for a space video before...

  • @ldawg7117
    @ldawg7117 2 ปีที่แล้ว +203

    This is without a doubt, one of the best and most underappreciated channels on TH-cam. Well, I guess all of us who are subscribed to this channel definitely appreciate it properly.. but you definitely deserve far, far more recognition, Alex.

    • @sb2johan
      @sb2johan 2 ปีที่แล้ว +7

      This one and SEA.

    • @ldawg7117
      @ldawg7117 2 ปีที่แล้ว +4

      @@sb2johan I haven't heard of that channel, what's it about? Well, I guess I can just type it in and find out myself in a second so.. yeah .. I'll check that out haha..

    • @sb2johan
      @sb2johan 2 ปีที่แล้ว +3

      All about the universe. Quality video's.

    • @ldawg7117
      @ldawg7117 2 ปีที่แล้ว +2

      @@sb2johan yeah, I've already watched a few of them haha. Thanks again for the recommendation.

    • @epic004
      @epic004 2 ปีที่แล้ว +3

      PBS Space Time is another great channel!

  • @sleepingbackbone7581
    @sleepingbackbone7581 2 ปีที่แล้ว +184

    Another gem from Astrum. Can't wait for a sequel. You're doing amazing work, and we are happy for sharing same space-time with you.

    • @astrumspace
      @astrumspace  2 ปีที่แล้ว +24

      That's a really cool way of thinking of it. Thanks!

    • @FaxanaduJohn
      @FaxanaduJohn 2 ปีที่แล้ว +11

      I sometimes wonder whether tv producers check out channels like Alex’s. There’s no reason he couldn’t do a BBC series about space like a new wave Patrick Moore.

    • @richardwalker6004
      @richardwalker6004 2 ปีที่แล้ว +1

      Man who are you telling I had to watch this twice to grasp my mind around it . Great Way to start my Friday morning.

    • @norddorian5791
      @norddorian5791 ปีที่แล้ว

      @@astrumspace scientists are NOT thinking that black holes have infite singularities

  • @jonamahee
    @jonamahee 2 ปีที่แล้ว +140

    Alex, this video is exactly what I've been looking for to understand the process of a star transforming into a black hole. That was brilliant enough but then your explanation of lightwave propagation blew me away! I can't wait for part 2. The world needs more science communicators like you. Thank you.

    • @Siopezz
      @Siopezz 2 ปีที่แล้ว +1

      No problem

    • @cezay5966
      @cezay5966 2 ปีที่แล้ว +2

      Ok

    • @AFreeThinkingDawg09
      @AFreeThinkingDawg09 2 ปีที่แล้ว +3

      Except quantum physicists still don’t understand black holes, care to enlighten the universe?

    • @jonamahee
      @jonamahee 2 ปีที่แล้ว +2

      @@AFreeThinkingDawg09 Sure! Beyond the event horizon there is a three dimensional tesseract built by five dimensional beings. 😉 I meant that I understand more about the process of a dying star becoming a black hole, not that I understand the black hole itself. I certainly wouldn't be one of those great science communicators 😅

  • @that_guy_from_the_internet
    @that_guy_from_the_internet 2 ปีที่แล้ว +15

    Dear Alex, i've been following your channel for a long time now and i am proud of the work you are doing here. The quality of your content is incredible, both the visuals/editing and the information you are sharing with us are perfect.
    You, sir, are in my top 5 TH-camrs.
    Thank you!

  • @dundotta1500
    @dundotta1500 2 ปีที่แล้ว +4

    The narration with good background music, you can't go wrong.

  • @MegaCheese48
    @MegaCheese48 2 ปีที่แล้ว +1

    Thank you so much for being diligent with your music credits. Makes it so much easier to find those lovely ethereal tunes.

  • @ethansuppes6285
    @ethansuppes6285 2 ปีที่แล้ว +45

    Space never ceases to peak my curiosity. Black holes are literally magic, they break space and time and can immortalize you on their surface for trying to enter. It's straight up wizard magic..

    • @keirfarnum6811
      @keirfarnum6811 2 ปีที่แล้ว +11

      It never ceases to pique my curiosity too. It’s amazing to think that black holes were discovered because the MATH said they should exist; not because they were just discovered on their own as a phenomenon. That’s mind blowing on its own. 🧠 💥

    • @blakemeding7917
      @blakemeding7917 2 ปีที่แล้ว +5

      @@keirfarnum6811 Same with Neptune, Lasers and gravitational waves! All postulated with math before there invention / discovery! Mind blowing!

    • @kylelochlann5053
      @kylelochlann5053 2 ปีที่แล้ว +1

      That is wrong. Everything crosses the horizon upon reaching it.

    • @AxionSmurf
      @AxionSmurf 2 ปีที่แล้ว +2

      Maybe Merlin made them for a high school project

    • @ethansuppes6285
      @ethansuppes6285 2 ปีที่แล้ว

      @@kylelochlann5053 farty fart poopoo man so smart, funny and talented. Go sit in the corner with your duncecap on

  • @Blake_47
    @Blake_47 2 ปีที่แล้ว +203

    Thank you Astrum for this unbelievably interesting content you've provided all that time,hope you keep going!

    • @astrumspace
      @astrumspace  2 ปีที่แล้ว +38

      I definitely will! I enjoy it a lot!

    • @teleportdinero
      @teleportdinero 2 ปีที่แล้ว

      @@astrumspace i am Lord teleport

    • @RenneDanjoule
      @RenneDanjoule 2 ปีที่แล้ว

      @@astrumspace Black holes may not be black holes. But a plasmoid.

  • @ttj_
    @ttj_ 2 ปีที่แล้ว +10

    You explaining quantum field theory actually got me to understand it now! I’ve been trying for so long to understand what it is, but your explanation is spot on! Thank you so much Alex and the Astrum team :) can’t wait for part 2!

  • @yosefcoopersmith9583
    @yosefcoopersmith9583 2 ปีที่แล้ว +41

    The visuals in the video were really interesting. It was was cool to learn the name of the first discovered black hole, as well as the year it was discovered. The zoom-in on M87 was awesome! And the design overlay of our solar system with white text over the orange, red and black colors just looks really pleasing from a graphic design point of view, it would be awesome to have that frame as a poster. I really like the font for the text content you use in your videos to label your photos or references, its friendly looking and easy to read. Ive gotta remember to find it later!

  • @banmidox
    @banmidox ปีที่แล้ว +4

    Hey Astrum love all your videos! I have literally binged your videos for hours. From the narration to the graphics and even the choice of background tunes, especially this one (Strellardrone - Billions and Billions) is just from another world. The background tune is very subtle, but every time that tune starts playing I legit feel like I'm on a journey in space!
    The timing of the music with the graphics and your narration is just sublime. I'm lost for words! Seriously amazing 🔥

  • @nonprodoorman6147
    @nonprodoorman6147 2 ปีที่แล้ว +26

    Astrum upload=day made better.
    Seriously love your stuff, man. Thank you for all the effort you put into this channel

  • @aroundomaha
    @aroundomaha 2 ปีที่แล้ว +6

    Wow! One of my favorite all-time episodes. Thank you for making a complex topic approachable.

  • @KarpeNoktum
    @KarpeNoktum 2 ปีที่แล้ว +1

    I'm already subbed, but I really appreciate your approach to the "like and subscribe" stuff, rather than asking people to subscribe before they even watch rhe video

  • @anttam117
    @anttam117 2 ปีที่แล้ว

    Alex, let me congratulate you, because yours is one of the very few TH-cam channels that I know of that treats the amazing mysteries of our Universe with the respect and awe they deserve. No loud Hans Zimmer style music, no snarky commentaries, no common denominator narrations. I really like your channel and I just wanted to chime in and cheer you into continuing with this amazing job you’re doing!

  • @matthewbattenfelder1748
    @matthewbattenfelder1748 2 ปีที่แล้ว +4

    I feel like I’ve watched…..hundreds of videos on black holes. This one had perfect visuals to go with the content. Just when I think I’ve seen it all, this is what keeps people like me discovering more and more. Thank you

  • @robertkerr4199
    @robertkerr4199 2 ปีที่แล้ว +3

    I love your enthusiasm. The sheer joy in your voice makes your video's worth it.

  • @mikepette4422
    @mikepette4422 2 ปีที่แล้ว +1

    This is THE BEST video about Black Holes I've ever seen because everything was said so simply and understandably. Often I see videos about Black Holes that talk about things way beyond my level of understanding. So glad you picked this topic today. TY

  • @Palmit_
    @Palmit_ 2 ปีที่แล้ว +1

    This is a very good explanation. The entire video is fantastic. The visual's used, (for example the concept of a star and the two basic forces), are particularly useful for those of us that find visual aids for learning the best option. The clear speech, and well paced commentary/narration matches the visuals and the 'story' perfectly. Good work Alex!

  • @dartagnanx1
    @dartagnanx1 2 ปีที่แล้ว +3

    I am so thrilled to see you nearing 1 million subscribers. Your channel is amazing!

  • @antonkovalenko364
    @antonkovalenko364 2 ปีที่แล้ว +3

    Thanks, bud. Your content is always a delight!

  • @Magnetarz
    @Magnetarz 2 ปีที่แล้ว

    Ok, this was the sleekest transition to a commercial ever! I didn’t even noticed it until I was halfway through, good job! 🤣

  • @rohanmagee6781
    @rohanmagee6781 2 ปีที่แล้ว +1

    I literally cannot get enough of your amazingly soothing English accent with that calm sense of didactic wonder about the universe

  • @toyfreaks
    @toyfreaks 2 ปีที่แล้ว +4

    What a cliffhanger! Your well chosen graphics really help associate the complex ideas with recognizable patterns.

  • @auctifer0
    @auctifer0 2 ปีที่แล้ว +6

    Just imagine - at this very moment, a particle just fell somewhere into a black hole out there. Time, as we know it, is slowing down for it to the extent that it's not moving at all for us. It can see us pass 10000 years in just a few seconds. Truly amazing and terrifying to think about!

  • @CLipka2373
    @CLipka2373 2 ปีที่แล้ว

    Kudos for being pretty much the only person on the interwebs who manages to properly pronounce "Schwarzschild".

  • @ernstkristianstlen4369
    @ernstkristianstlen4369 2 ปีที่แล้ว +1

    I was looking for part 2. But just realized this was posted last night.
    Looking forward for the follow up video

  • @stanleycostello9610
    @stanleycostello9610 2 ปีที่แล้ว +15

    "What is nothing?" I find this question most interesting. If a person is blind from birth, they see nothing, not even "black", as sighted people do.

    • @specter86fl
      @specter86fl 2 ปีที่แล้ว +4

      there is no such thing as "nothing" only the unobserved.

    • @lasarousi
      @lasarousi 2 ปีที่แล้ว

      @@specter86fl I wouldn't say observe as that is a limiting facto too, there are plenty of things we can't literally see but still measure, I'd say we just have the unmeasured out there.
      But there's a point in which humans just accept the fact that there might be something we cannot measure and cannot know it exists.
      Just like a blind person never knows what seeing is, only the theory behind it.

    • @syriouskash537
      @syriouskash537 2 ปีที่แล้ว

      There is no such thing as nothing? LOL. Here we go with the deep wokeness.
      Thats like saying there is no such thing as ZERO.
      There is always a nothing. Its the opposite of whatever is. The problem (YOU TH-cam SCIENTISTS) is you cant see.... or measure NOTHING. Cause there is nothing to measure.
      Now I know that goes against your scientific principles, but there is such a thing as the NON MATERIAL. Cake = Material. Birthday = Non Material.
      Now you scientificals have a hard time understanding the non material due to the fact you dont have any control of it or way of interacting with it........... until it happens to you.
      YOU DONT LIKE BEING BAFFLED. I get it.
      But. But... well.... I will just leave it at that.
      COME AT ME BRO!

    • @chrlpolk
      @chrlpolk 2 ปีที่แล้ว

      You don’t “see” black. Black is what we call the absence of light, right? We only know “black” in contrast to our experience with light. Also, blind people have varying degrees of light detection, as their brain still attempts to interpret signals from surrounding nerves.

    • @chrlpolk
      @chrlpolk 2 ปีที่แล้ว

      @Syrious Kash We use “zero” to define the absence of specific things. In everything we can observe, there are no examples of nothing. Empty space, sure - and in that “empty space” is residual fluctuations from surrounding objects and energies. So the best you have is circular logic, “You can’t observe nothing because nothing can’t be observed!” Congratulations on your logical fallacy!

  • @thelastminutetrade
    @thelastminutetrade 2 ปีที่แล้ว +8

    I m always fascinating by the way science work.
    Thanks for putting details simply
    Who else love this guy ❣️😍😍

  • @vexari4683
    @vexari4683 2 ปีที่แล้ว +1

    The quality of these videos is amazing

  • @romanslingervoet7916
    @romanslingervoet7916 2 ปีที่แล้ว

    This is the only channel where I already like the video while the ad is still playing, because I know it’s gon’ be good

  • @freddyjosereginomontalvo4667
    @freddyjosereginomontalvo4667 2 ปีที่แล้ว +5

    Awesome channel with awesome content and great quality 🌍💯

  • @AAlfredjoseph
    @AAlfredjoseph 2 ปีที่แล้ว +4

    Black holes are by far the strangest and scariest things in the universe

    • @specter86fl
      @specter86fl 2 ปีที่แล้ว +1

      not really, its just gravity taken to the extreme outcome where it is strong enough to keep everything from escaping, including light.

  • @rvboyett
    @rvboyett 2 ปีที่แล้ว +2

    I've enjoyed every Astrum video I've seen. But really, this takes the cake. They way you're starting to explain quantum fields is excellent.

  • @FreezeO
    @FreezeO 2 ปีที่แล้ว +2

    Really looking forward for this in-depth next video! Thanks Alex!!

  • @TerranIV
    @TerranIV 2 ปีที่แล้ว +8

    "Nothing" is not empty vacuum, it is the emptiness between quanta of spacetime. The vacuum contains the fields of QFT which, when exited, create the particles that make up matter.
    "Nothing" is the "no time" and "no volume," that separate one moment and one place from another, while having no duration or size itself.

    • @lol-dj2hv
      @lol-dj2hv ปีที่แล้ว

      Nothing or a void doesn't actually exist as particles on a quantum level can and will pop in and out of existence inside of "empty space"
      Source : Leonard S.- Cambridge University lecture on TH-cam
      dealing in quantum physics black holes and general relativity.

  • @duality4y
    @duality4y 2 ปีที่แล้ว +5

    What I really like is the fact that black-holes fell out of the math and everybody was like impossible! and then they get backed up by evidence!

  • @LupeCoded
    @LupeCoded 2 ปีที่แล้ว +1

    You brought back my favorite background music! Thank you!

  • @IvoryRider
    @IvoryRider 2 ปีที่แล้ว

    This is amazing content. I can see your hard work and attention to detail and it definitely pays off. Good for you for valuing the attention to detail rather than just trying to churn content out asap. This is going to be an amazing series, I think I'll watch it with my dad.

  • @PieterPatrick
    @PieterPatrick 2 ปีที่แล้ว +5

    4:15 Correction:
    The black hole is not the singularity, it is the black hole itself.
    A black hole is defined by the event horizon.
    Everything that is inside, is indeed speculation.

    • @specter86fl
      @specter86fl 2 ปีที่แล้ว +1

      correct, the black hole is the overall "thing" where as the event horizon or the singularity are parts of the greater whole that is a black hole.

    • @chrlpolk
      @chrlpolk 2 ปีที่แล้ว

      Love semantics!
      “We define the car by its frame!”
      “No, the engine is very much a part of a car!”

    • @PieterPatrick
      @PieterPatrick 2 ปีที่แล้ว

      @@chrlpolk We know what's in a car, that is the difference.
      If we talk about the Black hole, we know a lot about it.
      If we talk about what's inside the Black hole, we know almost nothing.

  • @AmpieAnk
    @AmpieAnk 2 ปีที่แล้ว +7

    Here's the one thing about Black Holes that I don't get: the supernova explosion starts off via an object that has finite mass and as gravity pulls the particles inwards towards the core, do the particles/atoms gain mass via increased momentum from gravity? How does a singularity with infinite mass and density form from an object that had finite mass?

    • @aasishwarsaravana5748
      @aasishwarsaravana5748 2 ปีที่แล้ว +4

      No the density increases due to the collapse and more mass is concentrated at a given mm3 of space and his is what causes increase in the concentration of gravitational force at a small point.
      There is actually a lot of unused space inside and atom and its the nuclear repulsive force between the atoms that keep each other far apart. It requires huge amounts of energy to overcome those repulsive forces and compress the empty space between them. Which is why a mm3 of a neutron star weighs as much as mount everest as much of the empty space has been filled.

    • @bobsmith231
      @bobsmith231 2 ปีที่แล้ว +4

      First off, singularities don't exist. It is just an indication that our knowledge of the maths and physics (i.e. relativity) breaks down at that point. Secondly, gravity is dependent on mass and radius. If the radius of the object decreases, but the mass remains the same, then gravity increases.

    • @Duhya
      @Duhya 2 ปีที่แล้ว +2

      Black holes don't have infinite mass, they have the mass of the material that was pulled inwards, and grow in mass as they eat. Their event horizon size is based on their mass, since gravity is a side effect of mass.

    • @dirremoire
      @dirremoire 2 ปีที่แล้ว

      @@aasishwarsaravana5748 but the fact remains that the mass of a black hole can never be more than the star that created it, hence its gravity can never be more than the star that created it. While it may be that the density is such that light cannot escape, black holes cannot simply go around gobbling up other stars. They simply don't have such incredible, unimaginable gravity as people are led to believe..

    • @martinhorvath4117
      @martinhorvath4117 2 ปีที่แล้ว

      @@dirremoire The fuck you talking about mate? Black holes gravity literally hold galaxies together.

  • @DaveNarn
    @DaveNarn 2 ปีที่แล้ว +1

    The introduction to this subject hurt my brain..
    ‘Black holes are not objects but the result of the extreme warping of space-time.’
    Thanks

  • @jonathanrivlin6248
    @jonathanrivlin6248 2 ปีที่แล้ว +1

    This was a fantastic video Alex!
    Thank you so much for all that you do.

  • @DakotaFortnerECAA
    @DakotaFortnerECAA 2 ปีที่แล้ว +25

    Since I learned about space looking curved from times point of view, and vise versa. With both together creating a spiral, I've looked at wave graphs as moving in spirals; not up, down, left , and right. Maybe I'm wrong in viewing things like that, but it seems like everything has a spin as long as there is time and space

    • @flexico64
      @flexico64 2 ปีที่แล้ว +4

      That's pretty much how I picture things now as well! I remember visualizing this for the first time when I found that e^(ix) = cos(x)+i*sin(x) makes a spiral, and not much later making the connection to relativity~

    • @senecaryan4155
      @senecaryan4155 2 ปีที่แล้ว +2

      The Fibonacci sequence made view things from a new perspective as well. I really hope additional dimensions are discovered in our lifetime.

    • @Canyon_Lark
      @Canyon_Lark 2 ปีที่แล้ว +2

      is there a video you learned that stuff from? About space and time looking curved to each other? I'm really curious about that

    • @forresthughes1650
      @forresthughes1650 2 ปีที่แล้ว

      @@Canyon_Lark can you tag me if OP responds with some resource regarding this? i'd love to learn about that too!!

  • @gravoc857
    @gravoc857 2 ปีที่แล้ว +56

    Simplest way to explain the creation and annihilation of virtual particles: You already laid the foundation in this video when you said energized particles pass their energy to the next particle in line. Same applies to whatever the quantum field of reality is. Think about the quantum field as an ocean, being tugged and pushed on, by our moon. This quantum ocean of what we perceive as nothingness, stews and sloshes about. This creates points of congestion, and points of emptiness at random intervals, in random places, Just like tangible and virtual particles, the quantum field of reality cannot be destroyed. Therefore, a large energy spike within the quantum field of reality (empty space, or a vacuum), results in the strong nuclear force creating a pair of virtual particles. Instead of the applied energy overwhelming and breaking the quantum point of space. The quantum field reacts by pushing energy away via particle creation and annihilation. Consider virtual particle pairs to be nothing more than a temporary transportation vessel to move energy away from one point, to another. This is the balancing act that generates the pair of particles, and creates a stable fabric of reality for more complex particles to exist. Why this mechanism is in place is unknown. Some attribute it to divinity. Scientists just don’t know enough to make an accurate theory of why. We have some unproven theories. But even if we prove these theories. It just moves the goalpost of “why” back further, as additional layers of complexity need peeled back to get to the root cause of everything.
    The reason for the need for the creation and annihilation of virtual particles in the vacuum of space, is because there aren’t any other tangible or virtual particles around to pass that energy off to. Our intuition lets us easily understand the passing of energy in the world we see, because we see it all the time. Such as when you microwave food, or making a camp fire, or generating body heat from exercising. You experience with your own senses the build up, and release of energy from one particle, to another. In the void of space, where these mechanisms for passing energy aren’t available. The creation and annihilation of virtual particles takes on that role. In absolute absence, the universe creates, rather than passes along.
    Back to the point - These particles are supposed to self-annihilate. Which is why Hawking radiation works, but also why it’s so confusing. If a pair forms right on the event horizon of a black hole. One particle can escape, becoming a permanent virtual particle (black body heat radiation), and the other particle also remains as a permanent particle, sucked into the abyss of the black hole.
    Since we know that virtual particle pairs aren’t creating themselves from nothing. We know that some of the mass & energy of the black hole is being used in this process.

    • @astrumspace
      @astrumspace  2 ปีที่แล้ว +29

      It's a great analogy, but just about your second to last paragraph, I thought that this is considered an oversimplified explanation, because actually it's also about time and not just about space, and it's about parts of the quantum field not able to fully vibrate or vibrate in sync which separates the particles.
      I'm doing more research at the moment for the next part in the series so I'm trying to wrap my head around this concept.

    • @gravoc857
      @gravoc857 2 ปีที่แล้ว +7

      @@astrumspace Excited to see it! The time element with anything related to black holes absolutely scrambles my brain. Maybe you can explain it in a way so that it finally clicks in my brain. The concept about space and time ceasing to exist at the singularity, is just, well, insane to think about. Thx for the content.

    • @richardconway6425
      @richardconway6425 2 ปีที่แล้ว +6

      @@astrumspace yes, it's not surprising that it's difficult to explain 'Hawking Radiation', because it's very technical but also quite speculative.
      I've always been surprised at the willingness of the physics community to accept it, because it is quite problematic.
      1. It is unfalsifiable, at least with larger black holes, because the energy radiated is less than the cmb, which means it gets drowned out by the noise of the cmb. It is undetectable. The only time we would ever see it would be in the final stages of a rapidly shrinking black hole in the final hours and minutes of its life, before it evaporated completely, in a flash of radiation. If we saw that, would we even know what we were looking at?
      2. It completely invalidates one of the most important pillars on which quantum mechanics is built - that of the conservation of information. This is even more problematic when you consider that the theory of Hawking radiation is built on quantum field theory, and, of course, GR.
      This is not a good start, and yet physicists like Leonard Susskind will say "the math is watertight, - you can't argue with the math..."
      However, it has to be said, that this 'problem', does lend itself very well to a theory favored by Susskind and others, that of Holographic theory.
      Ever since Jacob Bekenstein made the astonishing discovery of what is referred to as the 'Bekenstein bound', the idea of information being somehow encoded on the event horizon at the planck scale does not seem so outlandish. In fact, it seems eerily convincing.
      The correlation, that Bekenstein demonstrated, between the amount of information needed to describe the contents of a bounded volume, and it's surface area is so precise, that it is staggering. It is such a profound observation, that it would seem absurd to dismiss it as a 'coincidence', or lacking in significance. It seems to have a significance that could extend way beyond black holes, it could even describe the universe itself.
      Edit: the whole point of this holographic theory, at least in the context of black holes, is that it allows for quantum information to be conserved, even when Hawking radiation is occurring. The idea is that the information which is encoded on the event horizon at the planck scale, is somehow being transferred and encoded on the outgoing radiation, hence the information is not 'lost', but conserved, albeit in another form.
      It's difficult to imagine how this might happen, but one possibility is that it might involve the polarisation of the outgoing photons.
      So, in essence, we have one speculative theory (HR) that requires a second, arguably more speculative theory to validate it's possibility.
      Hawking radiation is unfalsifiable, and I think it's safe to say that the same applies to holographic theory, however intriguing it may be.
      Which leaves us in a difficult position. I think we should be sceptical.
      Good luck with doing a video on this!
      PS I have always found Matt O'Dowd's videos on these things to be very helpful, even he acknowledges the difficulties with some of these theories, and he should know!!

    • @nuntana2
      @nuntana2 2 ปีที่แล้ว +2

      @@gravoc857 Time dilation is a very real attribute and is ubiquitous and concerned with motion and gravity/acceleration. Even an aircraft pilot ages slightly more slowly than those who are stationary. Regards black holes-and photons travelling through space-time dilation is at the extreme (for them). Have a look into Special Relativity.

    • @astrumspace
      @astrumspace  2 ปีที่แล้ว +6

      @Richard Conway yes, I realise it is unproven, and I will emphasize that in the video. I did find it interesting though that hawking radiation was detected in an artificial "sonic" black hole - which I will also mention. It just shows the math is right, but whether sonic and normal black holes are analogous is the next debate. However I will check out what you just mentioned! Thanks

  • @bxbank
    @bxbank 2 ปีที่แล้ว +1

    Simply educational.
    Amazing to understand black holes so well.
    Those rotating black hole images are so trippy! :)
    Can't wait for Part 2!
    Thanks Alex!

  • @danielsmith1202
    @danielsmith1202 2 ปีที่แล้ว

    I just came across this channel and I’m loving it. Super calming narration mixed with astrophysics, who could ask for more from a TH-cam channel?

  • @benjaminschoberl6438
    @benjaminschoberl6438 2 ปีที่แล้ว +21

    Well, someone could argue that "nothing" is the absence of anything. But in my opinion it's more like a philosophical term. Because the moment you know what nothing is, it is something, right? So it's more like a illusionary term like maybe "perfect"
    We humans tend to make it more complicated than it actually is, I guess..

    • @no_more_spamplease5121
      @no_more_spamplease5121 2 ปีที่แล้ว +3

      Well, you put a lot of words together, yet you said nothing.

  • @ToniSM912YTMx
    @ToniSM912YTMx 2 ปีที่แล้ว +5

    Great Information Alex ! without doubt black holes 💢are misterious objects, but also they are very interesting, that's a good reason for study it .
    Thanks for share with us greetings and Great weekend for everybody
    👋🇲🇽🇪🇸🇮🇪🍀

  • @randomgrinn
    @randomgrinn 2 ปีที่แล้ว

    First black hole video in history that DID NOT tell me what happens when I fall in!! Thumbs up!!

  • @artdonovandesign
    @artdonovandesign 2 ปีที่แล้ว

    An Excellent Episode! A great script, graphics and narration. Thank you, Astrum. Always dependable quality shows!

  • @orbitingancient
    @orbitingancient 2 ปีที่แล้ว +6

    Epic

  • @longlakeshore
    @longlakeshore 2 ปีที่แล้ว +6

    A singularity IS an object. Its mass remains in the universe. If it disappeared from the universe so would its gravitational effect.

  • @benmcreynolds8581
    @benmcreynolds8581 2 ปีที่แล้ว

    Its so facinating that when i was born in '89 black holes were just theory. Now we have so much science and observations that prove their existence. I love that about science. It keeps me constantly curious. Also it keeps me thinking about how much more we can learn or discover in things we already thought we fully understood. Its amazing how much detail this universe consists. You zoom in, zoom out, you'll be surprised at how much detail there is in either direction, everywhere. Its amazing. Nature is awesome.

  • @maxximumskillzartstudios4217
    @maxximumskillzartstudios4217 2 ปีที่แล้ว +1

    This is amazing!! I am learning so much from this channel!

  • @Trev0r98
    @Trev0r98 2 ปีที่แล้ว +7

    Physics does not "break down" when a black hole is formed. Instead, you end up with "black hole physics". No laws are broken. They just become extreme.

  • @jdubya7
    @jdubya7 2 ปีที่แล้ว +3

    "we are not objects"-black holes

  • @EmperorMato
    @EmperorMato 2 ปีที่แล้ว +1

    Condensed and understandable information about evolution of a black hole. Thank you and looking forward to the second part.

  • @LDSG_A_Team
    @LDSG_A_Team 2 ปีที่แล้ว +1

    This series is gonna be awesome

  • @marksainsbury2422
    @marksainsbury2422 2 ปีที่แล้ว +3

    I've watched a bunhc of your video's, and they're always great and informative. For me, this one has been the most impactful I've seen yet. I've heard of light as a wave (and a particle) but never taken the time to understand it. I've taken it as "fact" for whatever else was underdiscussion. I've heard of quantum fields and the "fabric of space". While I'm sure it's still MASSIVLEY oversimplified for me, I've suddenly been able to tie waves, light, "fabric of space" or quantum fields into a single or related set of ideas, not the individual bits of stuff that I "knew" before. AWESOME! Patterns help understanding (and I realise our human bias towards patterns can also get in the way). This pattern that you've just made clear (linking bits of previously unrelated info) is fantastic! I feel like I've locked in something that was always a frustrating itch of fragments!
    Thanks a million! I'm hopping over to part 2 now to learn more! Awesome! Keep up the great work.

  • @flossietube2065
    @flossietube2065 2 ปีที่แล้ว +11

    I thought that matter "displaces" Space-time ultimately creating the "effect" of Gravity with the passage of time. So, because Black holes come in different "sizes", we know the matter is still there. It's just SO compacted that it completely displaces Space-time!
    So all the matter that makes up a Black hole is still there. In what form? IDK. But it has to be there in some form. Because the more of it that is there, the larger the Black hole "appears" to be! It just exsits "outside" of Space-time!
    I don't know, I just never liked the idea of a "singularity". Where you have one that has 3 Solar masses while others can have Billions of Solar masses and still be the same "singularity"??? Naw, that don't sound right. That mass is still there in some form!!!!

  • @quintonphelan7542
    @quintonphelan7542 ปีที่แล้ว

    I can’t believe I only found this video now absolutely love watching Astrum!

  • @danriddick914
    @danriddick914 2 ปีที่แล้ว +2

    Amazing series, can't wait for the next part!

  • @batinimagus
    @batinimagus 2 ปีที่แล้ว +4

    Black holes are so fascinating!
    The only thing that compares to the mystery of Black Holes, at least for me, is The Great Attractor.
    Thank you Alex for bringing us such quality content for us!
    Cheers from Brazil!

  • @awfullufwa
    @awfullufwa 2 ปีที่แล้ว +3

    Let's Goooooooo!

  • @soumyajain6982
    @soumyajain6982 2 ปีที่แล้ว +1

    Astrum!!! you are sooo good at explaining so complicated concepts in such a simple way!! Good Job buddy!!❤️❤️

  • @emmadeofsteel
    @emmadeofsteel 2 ปีที่แล้ว +1

    Great video! You do an amazing job of explaining the subject in a way that's sadly uncommon. We need more science teachers like you in schools!

  • @aliservan7188
    @aliservan7188 2 ปีที่แล้ว +5

    Great video as always, but you make one common mistake when discussing black holes. There's no such thing as a singularity. There is no infinite mass at the centre of a black hole. The "singularity" just denotes that the maths breaks down when trying to describe the conditions within the bounds of the event horizon

    • @srinitaaigaura
      @srinitaaigaura 2 ปีที่แล้ว

      It is simply a divide by zero error.

    • @aliservan7188
      @aliservan7188 2 ปีที่แล้ว

      @@srinitaaigaura er...no, not really

  • @i-am-evil-morty6710
    @i-am-evil-morty6710 2 ปีที่แล้ว +4

    Sweet

  • @PyroFalcon
    @PyroFalcon 2 ปีที่แล้ว

    This has to be the best explanation about black holes in TH-cam. 👏👏👍

  • @bolow
    @bolow 2 ปีที่แล้ว +1

    I love Astrum, explaining most complex astrophysics and make it so simple to grasp for us.

  • @Eremon1
    @Eremon1 2 ปีที่แล้ว +5

    If we can't observe a blackhole itself past the event horizon then we can't really say it is or isn't an object. We simply do not know and probably never will.

  • @darkflightdreamer1698
    @darkflightdreamer1698 2 ปีที่แล้ว +4

    me

  • @RagingGeekazoid
    @RagingGeekazoid 2 ปีที่แล้ว +2

    Another nice physics video about things the author doesn't really understand.
    4:20 _"[The black hole] is likely infinitely small and infinitely dense."_
    Um.....no. It's obviously denser than a neutron star, but it's unlikely that the compactness or density of anything is literally infinite. That would violate the uncertainty principle of quantum mechanics, so general relativity undoubtedly breaks down at some density level.
    9:00 Light is made of fields, not charges.
    10:10 What's waving may be the vacuum, i.e. it could actually be made of something. It seems like a substanceless void, but nobody really knows. Fields could be modes of vibration of whatever the vacuum is made of.

  • @johnhuldt
    @johnhuldt 2 ปีที่แล้ว +2

    Imagine if all black holes collapse towards the same “point” in the universe and when that point reaches a critical mass, a Big Bang happens.

  • @youcefdorbane2324
    @youcefdorbane2324 2 ปีที่แล้ว +5

    In 1974, Stephen Hawking made one of his most famous predictions: that black holes eventually evaporate entirely. He was right after all 🌌

    • @Fredrik.Sandstrom
      @Fredrik.Sandstrom 2 ปีที่แล้ว +2

      Stephen also reversed his stance on Black Holes as can be read in arXiv:1401.5761 submitted on 22 Jan 2014.

    • @youcefdorbane2324
      @youcefdorbane2324 2 ปีที่แล้ว +1

      @@Fredrik.Sandstrom I just read the article, thanks 👍

    • @ckdigitaltheqof6th210
      @ckdigitaltheqof6th210 2 ปีที่แล้ว

      Its because its not a "hole" nor is it a color like "black," an inconceivable compression 3D celestial storm, even reflective in texture, that eventually diminished stars or any optical ommiting entity. to impose the "bkackhole" look.
      Steven Hawkings also had a theory, that if you had a telescope in local range, at a star, you wouldn't know that everyone is in a whirling parabolic vortex of this *dark matter* ...watching in a synchronized parallel view, that a "blackhole" had birth conjured close! Like the theory of "planet X," (over the Nibiru teaching and YT vids).
      A *ploom orb* that rised, after a binary dwarf/star(possibly Nemises) in the mid 2000's & mid 2010's decade was witnessed by people (& YT vids).
      Steven spoke of how years, months, days & up to the seconds would feel like very fast/forever during differant loop duruations of the dark matter whirling parabolic.
      Steven had illustrated videos, long before these paradox events. Even famous people, have theories, of being in a *simulation system* 🌠👀🌐🌀🕛🕜🕣🕥⌛⏳⌛🎢🌌

  • @swedneck
    @swedneck 2 ปีที่แล้ว +4

    Bit disappointed you didn't mention how the edge of the black hole that we see is actually not the event horizon, but rather the radius where photons get trapped in an eternal orbit around the black hole.

  • @ThomasJr
    @ThomasJr 2 ปีที่แล้ว

    Wow, you managed to make me think about points that had never occurred to me before. Even though I've watched maybe hundreds of videos on Black holes, others didn't touch on crucial points that you did. Now I finally get it.

  • @anguswombat
    @anguswombat 2 ปีที่แล้ว

    I think that was one of your best videos. Thank you very much!

  • @CosmosToGo
    @CosmosToGo 2 ปีที่แล้ว +3

    Black holes are restarting the universe....

    • @oldman2800
      @oldman2800 2 ปีที่แล้ว +1

      Maybe their the genesis of another universe the more they absorb the more that universe inflates. It would also provide a conservation of energy as black holes seem to demolish energy from our universe which breaks the laws of energy conservation

    • @CosmosToGo
      @CosmosToGo 2 ปีที่แล้ว

      @@oldman2800 I think (if the theory is right) that a universes could only created by big bangs. Yes some are saying that our bing bang could have been a black hole. But black holes also destroying information (as some research mentioned). Some black holes are having some outbursts of materia but also they become smaller over billions of years. I think they will create "nothing". They put all to the beginning. I know people hoping that black holes are doors to other worlds and something special. But i think that they are how they look like: just nothing. After billions of years there is just next big bang...a fluctuation in black vacuum.

  • @captainzappbrannagan
    @captainzappbrannagan 2 ปีที่แล้ว +5

    I've always had an issue with the phrase "this is the point where physics breaks down". The phrase should be at the point of collapse into a black hole classical physics breaks down and quantum physical effects we have yet to describe completely take over. Surely physics never breaks down, it is still physics going on at the black hole singularity, it's just we don't understand it yet.

  • @eac-ox2ly
    @eac-ox2ly 2 ปีที่แล้ว

    Incredible video as always. Your channel is a GEM in this website.

  • @rumblefishes
    @rumblefishes 2 ปีที่แล้ว

    Very nicely presented. Thank you. Looking forward to more.

  • @loomusducla
    @loomusducla 2 ปีที่แล้ว +4

    FIRST!

  • @indigoace261
    @indigoace261 2 ปีที่แล้ว +1

    Great video as always, thanks for sharing.

  • @downtownmafia123
    @downtownmafia123 2 ปีที่แล้ว +2

    Incredibly well made. Many thanks!

  • @chadbaptiste4227
    @chadbaptiste4227 2 ปีที่แล้ว

    That T up for the quantum jazz was spot on! Really looking forward to this series, Mr. McColgan!

  • @SanderAgelink
    @SanderAgelink 2 ปีที่แล้ว

    This video just helped me understand certain things I thought I new, but apparently didn't. Thank you

  • @cavedon.felipe
    @cavedon.felipe 2 ปีที่แล้ว

    Almost 1 million subs! I still remember the very first videos of Alex. Thank you very much for your dedication!

  • @biblicalbow
    @biblicalbow 2 ปีที่แล้ว

    Looking forward to this series. Thanks Alex.

  • @strether52
    @strether52 2 ปีที่แล้ว

    OUTSTANDING explanation. You are clarity itself!

  • @nonmerci8237
    @nonmerci8237 2 ปีที่แล้ว

    I want to thank you, with your metaphors I finally feel like I have a better understanding of something I couldn't understand

  • @andycopeland7051
    @andycopeland7051 2 ปีที่แล้ว +1

    Great video man I can't wait for part 2

  • @sk8razer
    @sk8razer ปีที่แล้ว

    I love that this channel is fascinating and perfectly engaging, but it's also great for helping me pass the event horizon into sleep (haha I'm a comedy genius, *clearly*)!
    The mesmerizing visuals; the soft background audio; and the narrator's (whose name I currently do not recall 😬 sry) gentle rhythmic cadence + accent all come together perfectly!

  • @Rawi888
    @Rawi888 2 ปีที่แล้ว

    ROAD TO A MILLI LESSS GOOO. this is the first video that ever made me understand what quantum fields are. Thank you.