Original Video @kurzgesagt • The Largest Black Hole...
Пікірлер: 49
@IroAppe Жыл бұрын
14:07: That bit at the end is not an advertisement. It's about the "necessary inaccuracies" in the video. It belongs to the video, since it tells that some things of the video aren't that clear. I think they did it better in "The largest stars", because they included that bit into the main part, so that people would not click away before seeing this. I really recommend watching it, because it's interesting. Here's the script to show you: "Let’s try something new today, we can call it: “Behind the Lies”, a short behind the scenes bit about the necessary inaccuracies in this video - because it's really not actually possible to rank black holes like trading cards. How so? Well, while we have catalogued millions of stars, we really only have good data on a couple of dozen black holes. That’s because black hole gazing wasn’t really a thing until 50 years ago - and technically still isn’t, because we can’t see black holes. We can only derive their properties from studying their gravitational effects on the matter around them, like the orbit of stars that come close to them. This effect depends on the mass of the black hole, which we can approximate at the most basic level with Kepler’s Laws. But this comes with huge uncertainties and error bars. Then we have to convert mass to size next, which brings new uncertainties. For example, we calculated the radius from the mass using the Schwarzschild equation which for the sake of simplicity assumes black holes are perfectly round and don’t spin: a kind of black hole that doesn’t really exist. The reality is that physics on these scales is a bit fuzzy. So some of the black holes we talked about here may be way smaller or way bigger. We just don’t know for sure. We shimmied around this problem by comparing different sources with different kinds of values and using different mass calculations to arrive at a standardized list that allowed us to be as accurate as humanly possible. You can look at all of this in our source doc. As a result this script was written with the tears of experts we drove crazy with our obsession for the best values they could live with."
@tfolsenuclear Жыл бұрын
Wow, my bad 🤣Thanks for letting me know! I’ll check out the rest of the video
@georgieyoung970 Жыл бұрын
@@tfolsenucleardid you really read all that information that can never be lost nor can be lost
@quangho8120 Жыл бұрын
5:03 observable universe is 93B light years in diameter btw, but we're still seeing the objects 46B light years away from us as though they're from 13.7B years ago
@tfolsenuclear Жыл бұрын
Thanks for the clarification!
@OzoneTheLynx Жыл бұрын
And the reason why it so much bigger then 13.7B ly (in radius): The universe used to be way smaller and expanded over time. So tiny distances traveled in mear seconds in the early universe have grown into huge distances afterwards. So things "actually" are way farther away from us then they appear to be. (Also why most stuff we can see is literally impossible for us to ever reach) Also it often makes more sense to use the 13.8 ly universe, because that is how the universe appears to us and it hence describes what and how stuff is actually interacting with us right now.
@georgieyoung970 Жыл бұрын
@@tfolsenucleartell us every single tiny-biggest events from 15.4 billion years to now
@MrCubFan41511 ай бұрын
@@OzoneTheLynx 13.8 Gly, you mean (gigalightyears)
@OzoneTheLynx11 ай бұрын
@@MrCubFan415 no I meant 13.7 billion lightyears, which is the same as 13.7 gigalightyears. (Thanks to standardized SI-prefixes).
@v1_the_ultrakiller2 ай бұрын
fun fact: there's black holes that are bigger than TON 618. (kinda) these include: 3. Pheonix A 2. Abell 1201 1. S5 0014+81
@Satronex8 ай бұрын
Forget TON618. An even larger black hole was found with around 100 billion solar masses. Name "Phoenix a"
@aariyanbailey Жыл бұрын
PLEASE what is something by in a nutshell kurzgesagt!!!
@tfolsenuclear Жыл бұрын
I’ll check it out!
@ninamueller3358 Жыл бұрын
Its easy its doku shorts im german or english
@georgieyoung970 Жыл бұрын
@@tfolsenuclearwhat is a thing
@weresteres8 ай бұрын
That video always makes me fall asleep
@didierleonard7125Ай бұрын
The first GW detection was a merge of two black holes 1 billion light years away… not 17
@novasolarius87633 ай бұрын
Fun fact about black holes: small black holes are far denser than large ones. This is because the radius of a black hole scales linearly with its mass, at roughly three kilometres per solar mass. TON 618 has a density of just over five grams per cubic metre, lower than that of hydrogen gas.
@laplace607 Жыл бұрын
However due to the expansion of the universe, the observable universe (how far we can receive light from) is 90 billion lightyears across. 5:04
@stumblepuppy606Ай бұрын
the gravitational waves we detected are 17 billion light years away because the Universe has expanded since then. They are 17 billion light years away now, but were a lot closer when they emitted that gravitational wave energy. Even though the Universe is 14.something billion years old, it is 93 billion light years in diameter due to expansion.
@limabravo60652 күн бұрын
That's not how that works. Those waves traveled 17 billion light years, so minimum distance at origin is 17 billion light years. The universes expansion means the source is now further away than 17 billion light years, but that doesn't mean the source was once closer to us when it emitted those waves, if it were then light speed would have had to slow down somehow and then your breaking all sorts of the laws of physics. All telescopy is viewing objects and phenomena where they were and not where they are
@greaterbelgiummapping1266 Жыл бұрын
youre way to underrated! i hope you get more subs!
@tfolsenuclear Жыл бұрын
Thanks so much! Please help me out by sharing with your friends and family 😁
@greaterbelgiummapping1266 Жыл бұрын
@@tfolsenuclear sadly they aren't really interested in this topic, but i can reccomend you to my 315 subs XD
@georgieyoung970 Жыл бұрын
@@tfolsenuclearhow many people have ever lost there lives since -40!??
@wangson26 күн бұрын
That's not true. They're suggesting that the Radio Lobes stretch "...half a million light years in diameter. That is 2.5 Milky Ways wide." No! From what I've read, the Milky Way has a diameter of around 80,000 light years. That's a pretty massive difference!
@nazmameah381011 ай бұрын
Did you know kurzgesagt in german means in short? Since they put this stuff in short, consumable videos, the title fits well
@pulli2311 ай бұрын
it just means "in a nutshell" - they always start their video with that. Kurz gesagt "shortly said".
@mealosramirez2950 Жыл бұрын
Try searching for the black hole PHEONIX A
@makerofArt11 ай бұрын
Hey, we actually can use black holes as an energy source. kurgzgesaegt he has a video on how to take energy from a black hole
@F-35BLightningII11 ай бұрын
13:18 Lesson Learned Here You are insignificant.
@gonnaenodaethat61984 ай бұрын
If we could harness the tidal forces of a black hole, just this would be a mind numbing amount of energy and all without getting into energy from radiation yet. Might even be able to heat water into steam directly just by having water orbit a black hole in a pressurized container of a sort. So many possibilities for black hole energy; it gives me an engineer boner just thinking about it :3
@stephenhilario8311 Жыл бұрын
Imagine you as a big jacked body builder getting bullied by a little boy
@eonuzex Жыл бұрын
When it comes to energy, antimatter is the key. Once we figure out ways to make the process less expensive, time consuming and energy intensive we will have a energy source like no other. Of course in the long long long long long future if we survive we can definitely harvest black holes for energy using a very sophisticated, high tech, revolutionary awe-inspiring.... mirrors.. yup just a lot of mirrors. Cant remember where I got that information from, probably Kurzgesagt lol.
@michaelp4013 Жыл бұрын
I believe it was the "Black hole bomb" video from Kurzgesagt where you might have obtained that knowledge, and the only reason I think that's the video is because I've watched that video several times over.
@UberMangaka11 ай бұрын
@@michaelp4013agreed probably the black hole bomb video, bounce a particle around a black hole enough and it will just collect energy like nobody's business, then release it into the wider universe and Voile, stupid huge energy source. Probably one means by which a Kardashev type 3 civilization would power itself.
@icaruswindrune711610 ай бұрын
You did get it from Kurzgesagt lol. It was the Black hole Bomb video that mentioned such a thing. It was essentially covering what a Penrose Sphere is.
@seek408810 ай бұрын
phoenix A blackhole Largest than Ton 618
@servantofdeen3 ай бұрын
GOD is real!
@georgieyoung970 Жыл бұрын
Give this video to 500 likes in 12 hours
@terra.7607 Жыл бұрын
OK
@esraeloh868111 ай бұрын
Aww man why the fk would you cut that end off without checking what it was