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The Life and Death of Stars: White Dwarfs, Supernovae, Neutron Stars, and Black Holes 

Professor Dave Explains
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We've learned how stars form, and we've gone over some different types of stars, like main sequence stars, red giants, and white dwarfs. But a star will move between these categories over its lifetime. How does that happen, exactly? And what is leftover when a star dies? A white dwarf? A neutron star? A black hole? What are these objects? Let's answer all of these questions and more by analyzing the life cycle of a few different star types!
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16 июн 2024

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Комментарии : 1,7 тыс.   
@michaelpisciarino5348
@michaelpisciarino5348 5 лет назад
0:58 Lifetime of Stars 1:39 Nuclear Collision, Nuclear Fusion 2:34 Low Mass Star 4:24 Hydrogen gone, outer layers pushed out, ----> Red Giant for 1 million years 5:00 Helium Flash 5:30 Burning Helium, entering the Horizontal Branch 7:06 High Mass Stars. Big Stars goes out with a Bang! 7:40 Hotter Star, Faster Fusion Quicker Burning 8:25 Layered fusion, to a Core of Iron Nuclei, EXPLOSION 13:20 Collapse Into A Black Hole - Warps Space Time - Consumes Light -The Remnants of Huge Dead Stars 14:47 The Stellar Life Cycle
@lutherburgsvik6849
@lutherburgsvik6849 4 года назад
Thanks 👍
@samstarlight160
@samstarlight160 4 года назад
@@valsarff6525 what do you mean it's doing work on itself?
@kiidcathedrale8122
@kiidcathedrale8122 4 года назад
Red Giant for 1 BILLION years, not 1 million ! but thanks a lot !!
@manan-543
@manan-543 4 года назад
@@valsarff6525 oh shut up with that pseudo-scientific crap.
@Ploskkky
@Ploskkky 4 года назад
@@valsarff6525 The pseudo scientific Electric Universe hypothesis has been debunked in so many ways, and so effectively, that it's death has caused a black hole in the brain of its remaining proponents.
@mayastaples2658
@mayastaples2658 3 года назад
as a member of the hard of hearing community, i must say that i really appreciate you captioning your videos! i have an audio processing disorder so its really hard for me to understand and process spoken information and speech. you can imagine that makes it really hard for me to learn what i need to at school, and so i supplement with a lot of youtube videos. it's so hard for me to find good material that doesn't just have auto-generated captions. thanks for being inclusive of all your audience :)
@patrogers6297
@patrogers6297 2 года назад
Hear! Hear! I have the same problem and have to bypass so many interesting looking videos. Thanks for calling attention to this.
@joseemiliomelladomolina4818
@joseemiliomelladomolina4818 2 года назад
zzzzzzzz is so boring
@neilsiebenthal9254
@neilsiebenthal9254 2 года назад
@@nenmaster5218 yes, but point? ?
@bordershader
@bordershader 2 года назад
Agreed, another person hard of hearing here, so appreciated. Great vid too, I've learnt so much. Thanks 👍
@TheBluePhoenix008
@TheBluePhoenix008 Год назад
I thought the subs were for idiots like me 💀 Oh well that just proves my point lol
@archiefromuno
@archiefromuno 3 года назад
I think the worst part of denying science is that you can’t appreciate how cool the existence of all this is
@kushclarkkent6669
@kushclarkkent6669 9 месяцев назад
They wouldn't understand it anyways lol.
@liztcalistre6341
@liztcalistre6341 4 года назад
In these 16 minutes I managed to understand what my science teacher couldn't teach me in 3 weeks tysm
@yaboiyaskiii
@yaboiyaskiii 3 года назад
@@scottgames527 facts
@ItsAshlxy
@ItsAshlxy 3 года назад
@@scottgames527 tru fax
@user-us2hx3xo8e
@user-us2hx3xo8e 2 года назад
You learn more when you want to learn and are interested in the topic
@amlanadarshdas4470
@amlanadarshdas4470 2 года назад
@@user-us2hx3xo8e I am interested in topics and still I can't learn anything
@fletchy88
@fletchy88 2 года назад
@@amlanadarshdas4470 you absolutely can.... You just need to stop yourself and get into the ”flow state" .... Try doing different things in your head and try... Instead of just doing the same thing everyday
@extartempore6150
@extartempore6150 4 года назад
Girl: tell me something romantic Guy: you are as rare as the element with atomic number greater than 26
@fantoast6932
@fantoast6932 4 года назад
damn...
@Fred_the_1996
@Fred_the_1996 4 года назад
Boi, u are as rare as hydrogen
@EmomanTavish
@EmomanTavish 4 года назад
@@Fred_the_1996 hydrogen makes up 90% of mass in the universe, if you were not just joking around
@EmomanTavish
@EmomanTavish 4 года назад
@@sohinimukherjee2856 youre not smart enough to woosh me since you dont get it
@EmomanTavish
@EmomanTavish 4 года назад
@@sohinimukherjee2856 you still dont
@jeffreysmith6910
@jeffreysmith6910 4 года назад
Professor Dave, that’s the best H-R diagram description I’ve ever seen! Most H-R discussions are simply temperature vs mass explanations. You correctly make it a “roadmap” for the life of high/low mass stars. Even textbooks I’ve read don’t make that connection.
@Presidentclockworktoby
@Presidentclockworktoby 4 года назад
🤬
@plasmaastronaut
@plasmaastronaut 4 года назад
its a pity Dave's interpretation of is wrong, and identical to that of all the other astro sheeple
@ghz24
@ghz24 4 года назад
@@plasmaastronaut Back to flatardia with you.
@lauramoreno8742
@lauramoreno8742 4 года назад
plasmaastronaut what... care to elaborate?
@plasmaastronaut
@plasmaastronaut 4 года назад
@@lauramoreno8742 guess i'll have to do my own vid on the HR diagram. it'll be nothing like the normy interpretation
@ZaWakingEagle
@ZaWakingEagle 5 лет назад
Not only is the content super interesting, you do a great job at explaining it! I love this!
@ToutCQJM
@ToutCQJM 5 лет назад
You can tell he’s excited about it, and that is contagious.
@edthoreum7625
@edthoreum7625 4 года назад
1:20 human life & fraction of blink of an eye,,,
@Human-gu2cx
@Human-gu2cx 4 года назад
ZaWakingEagle except for the part where he says that a black holes center has infinite density because some scientists believe it may be the plank length and not a single point
@ZaWakingEagle
@ZaWakingEagle 4 года назад
@@Human-gu2cx I googled what you were talking about. I think for the sake of reaching the audience of interest, defining the concentration of mass at a single point is an ok simplification since the plank length is so small. Taking a pretty large mass and dividing it by that extremely small plank length would cause the density to skyrocket to an insane number. thoughts?
@Human-gu2cx
@Human-gu2cx 4 года назад
ZaWakingEagle and really there’s more speculation about black holes than he lets on
@gdiaz2623
@gdiaz2623 2 года назад
This is incredibly helpful for my astronomy class this summer. You managed to take around 4 weeks of information, with all lecture videos coming to a total of about 5 hours, and condensed it into a much more comprehensive video with better visuals that is under 20 minutes. Absolutely amazing and I thank you so much for this.
@pro-rw9xz8co9p
@pro-rw9xz8co9p 9 месяцев назад
Thank you
@TheBsheep
@TheBsheep 5 лет назад
I've heard a star's life cycle dozens of time but this is by FAR my favorite tutorial!!!! Very informative.
@zerokmatrix
@zerokmatrix 4 года назад
I think this is aimed at kids, and despite being an adult with a lifelong interest in science and astronomy and having an above-average level knowledge of both, I find these videos extremely entertaining and chocked full of facts I had forgotten or didn't even know in the first place. This channel definitely deserves better recognition and more subscribers. My friend has just had a baby and this is one of the channels I'll recommend he lets his kid watch while growing up
@patricksarama4963
@patricksarama4963 3 года назад
Your friends baby will get to grow up watching science Jesus
@thunderspark1536
@thunderspark1536 Год назад
@@patricksarama4963 Except professor Dave doesn't have people saying he rose from the dead, is the son of god, died for our sins...etc. He's just a man like any of us, communicating peer reviewed, studied, and well understood processes.
@shankara8132
@shankara8132 10 месяцев назад
@@thunderspark1536it’s a joke
@anirbandutta8000
@anirbandutta8000 4 года назад
It's very hard to explain complex things in simple ways. And you have just done that! Kudos!
@dongato6838
@dongato6838 5 лет назад
I've never heard it explained so simply, clearly, and beautifully. Thank you so much. Subscribed!
@pro-rw9xz8co9p
@pro-rw9xz8co9p 9 месяцев назад
Thank you
@adventuremi1
@adventuremi1 4 года назад
Every time I come here I'd get so fascinated by not just the facts but also by how easily understandable Dave delivers the topic, to the point that I feel so eager to click the like button right after watching, only to find that I've liked it already!
@raffia16thblaze10
@raffia16thblaze10 4 года назад
2018: "its impossible to see a black hole" 2019: "We made a photo of a black hole"
@Fred_the_1996
@Fred_the_1996 4 года назад
I know I'll get whooshed but the photo represents the glowing gas around the blakc hole
@xiaozhang7103
@xiaozhang7103 4 года назад
technically, it's a photo of the black hole's event horizon.
@raffia16thblaze10
@raffia16thblaze10 4 года назад
Yeah well its still something and its provem that its possible. To get an image of one even if it is indirect
@andersonklein3587
@andersonklein3587 4 года назад
@@raffia16thblaze10 Nope. He was making a point you can't see the singularity. Which is debatable but definitely not something we've ever done. A naked singularity could be anything, as far as we are aware, but not purely a point since it has spin, no one knows what shape or volume it has, if it even has one...
@raffia16thblaze10
@raffia16thblaze10 4 года назад
Yall are taking this too literally guys.
@PedroSilva_ytptbr
@PedroSilva_ytptbr 3 года назад
"We are all made of stardust" -Carl Sagan
@radinelaj9280
@radinelaj9280 2 года назад
We all are made of star dust - quran (1400 years ago )
@spoodlydoodler3552
@spoodlydoodler3552 2 года назад
@@radinelaj9280 Carl Sagan is a much better person to quote from.
@suhyibmazmy87
@suhyibmazmy87 2 года назад
@@spoodlydoodler3552 most of the time I will get angry when I see comments like yours but ill let you off since I just woke up and I don't have enough energy to get angry
@spoodlydoodler3552
@spoodlydoodler3552 2 года назад
@@suhyibmazmy87 good for you.
@alexanderkarvos6728
@alexanderkarvos6728 2 года назад
*snort Stardust* Mmmm. Star makee
@stewiegrif1
@stewiegrif1 25 дней назад
I'm working through your course right now Dave, and I wanted to let you know that this is such a beautifully constructed course. It blends a perfect balance between being detailed, but not overly complex, and maintains a phenomenal sense of flow. You explain things in such a way that it captures the true essence of the concept, yet also leaves room to explore other pieces of it in more detail. I always leave a chapter feeling like I learned something really cool, and I feel like I'm growing after each video. This series really means a lot to me, and I'm very happy to have found it!
@allo9228
@allo9228 5 лет назад
He deserves a million subscribers. He’s a very hard worker
@zaynab3970
@zaynab3970 5 лет назад
Al Lo IKR
@peterowley2014
@peterowley2014 5 лет назад
Propaganda for gullible people.
@NPC-kr3cx
@NPC-kr3cx 5 лет назад
@@peterowley2014 arent you fun
@peterowley2014
@peterowley2014 5 лет назад
LMAO I love entertaining simple people "grade school"
@xavierlauzac5922
@xavierlauzac5922 5 лет назад
Pete Rowley it’s true.
@direwood
@direwood 5 лет назад
This is the most informative video on Astronomy I've ever seen! Keep up the great work!
@quahntasy
@quahntasy 5 лет назад
Dave is such a nice explainer. He deserves a million subs
@siddhantagrawal711
@siddhantagrawal711 5 лет назад
Thanks.this is the first video on RU-vid which gives complete information about star formation,their life and death. I requested many RU-vidr to make videos on this topic
@Lightgreen57
@Lightgreen57 4 года назад
It took my teacher like the entire science class (45 min) to explain the same information. Keep it up!
@johnrupesh4535
@johnrupesh4535 Год назад
Closed the video without hitting the like button so came back specifically to do that. This video deserves it.
@kalimeet___1524
@kalimeet___1524 2 года назад
Love this channel. Getting ready to head to college for math and physics and always good to see someone informing people who chose to go another route in life
@anthroposlogica9379
@anthroposlogica9379 Год назад
Professor Dave. I am a student of Anthropology and i never thought in a million years i could understand astronomy. I picked it up half a year ago to fill a hobby. and you have made it so easy and fascinating to study, i always take to my telescope after your videos man. Thanks a ton
@MrLorincombs
@MrLorincombs 4 года назад
Dude...thank you for teaching me so much and giving me access to this stuff... Its truly appreciated
@belladupont6777
@belladupont6777 2 года назад
That was incredibly fascinating and easily the best explanation I've seen for the formation and life cycle of the main planetary objects. You make it all very intuitive. 👍
@hemenpalani9793
@hemenpalani9793 2 года назад
Thank you Professor Dave. I get more and more thankful for every one of your videos. They are so perfectly organized. Love from Norway.
@jdillon8360
@jdillon8360 2 года назад
Great video Professor Dave. I re-learned a whole bunch of stuff I had forgotten since high school. You are doing a great job. Cheers!
@jaxwoodworkers
@jaxwoodworkers 5 лет назад
WOW!! What a great explanation of stars. Great job as usual Prof. Dave!
@gewhyfrank9252
@gewhyfrank9252 5 лет назад
This is the best video explaining Stars life I’ve every seen.
@neub4321
@neub4321 3 года назад
Great job tying together disparate ideas and terms I've heard about from watching other astronomy videos. That's challenging. Thanks
@Eztoez
@Eztoez Год назад
This is the best explanation of the death of stars I have so far seen on youtube. I was always confused about supernovae, neutron stars and black hole formation. Now I feel I know a lot more and am less confused. Thank you so much for this informative video.
@kingcrabbrc
@kingcrabbrc 3 года назад
"we will probably never see one..." M87: 🙋🏻‍♂️
@ProfessorDaveExplains
@ProfessorDaveExplains 3 года назад
Well we can't see inside one is what I mean.
@CTGReviews
@CTGReviews 3 года назад
Oh, hi! How’s your friendship with Sagittarius A*?
@patricksarama4963
@patricksarama4963 3 года назад
@@ProfessorDaveExplains spinning black holes are typing... ⚫️
@Mark-Wilson
@Mark-Wilson 3 года назад
why are you susbcribed tog aia aslo you're a troll I found you on a flat earth video
@TornadoHarry
@TornadoHarry 3 года назад
Nice profile picture
@purplehaze2358
@purplehaze2358 4 года назад
Electron degeneracy? As a degenerate myself, I can assure you electrons aren’t the only things going through that.
@WilbertLek
@WilbertLek 4 года назад
You should use a picture of the amulet as your profile pic.
@xxxman360
@xxxman360 4 года назад
But at least electrons are actually good for use
@samueltrusik3251
@samueltrusik3251 4 года назад
before you ask, bright, no, chainsaws aren`t the answer. not even more chainsaws. And MOST DEFFINATLY NOT chainsaw CANNONS.
@PaulaJBean
@PaulaJBean 4 года назад
The real degenerates are flat earthers. The flat earth movement back then: skeptoid.com/episodes/4338 , and now: skeptoid.com/episodes/4521
@lauramoreno8742
@lauramoreno8742 4 года назад
Chainsaw is the way
@christheswiss390
@christheswiss390 3 года назад
Best structured and most instructive video I've seen on this topic. Thank you very much!
@samiranshil576
@samiranshil576 4 года назад
knowing about stars is my favorite hobby. i have seen tons of videos about stars and black hole, but you are too good. you deserves millions of subscribers
@shashanksharma2428
@shashanksharma2428 5 лет назад
Just Stumbled upon your channel today You Are AMAZINGGGG
@williamsaunders670
@williamsaunders670 4 года назад
Love this Professor! Best expo of star life cycles I've seen EVER
@charminharlan9081
@charminharlan9081 3 месяца назад
I slept through my astronomy lecture this morning, thanks for helping me keep up! Plus, this helped me understand the HR diagram so much better!!
@tomaszwida
@tomaszwida Год назад
there is a lot more that going on in between these fusions cycles into new elements, also there is a difference luminescence between type of starts as well as the temperature they are burned at. however this is very good concise information on very lengthy and somewhat complicated topic. great job!
@InvisRatEnjoyer
@InvisRatEnjoyer 4 года назад
Thank you Dave, this video helped me so much to an atrophysics test. Massive Thanks to you, keep doing what you are doing :D
@InvisRatEnjoyer
@InvisRatEnjoyer 4 года назад
Update, got an A thanks to you. 👊👊
@florinfiltervac1415
@florinfiltervac1415 5 лет назад
This is the best explanation that I've looked for in what happens with the atoms actually, when the mass is contracting that much, first atom pushing atom, then an huge nucleus of neutrons, then a black hole. Now I've figured out finally all, generally speaking. Thank you, that's light in my head now.
@summergelato1248
@summergelato1248 2 года назад
thank you so much for explaining in a really easy and fun way! surely, stars, nebula and galaxies are really interesting and fascinating but there are complexities as well, of course, but simple explanations make it so much easier and faster to learn about them!
@jacobblumin4260
@jacobblumin4260 Год назад
Excellent video! Excellent information presented well. Keep it up.
@innertubez
@innertubez 4 года назад
Thanks for this awesome video! One question , though: the “horizontal branch” doesn’t look very horizontal. How did it get that name?
@yeyee4707
@yeyee4707 4 года назад
I already know this stuff but it’s just interesting to listen to
@penrythajanitor1977
@penrythajanitor1977 3 года назад
Plus Professor Dave is excellent at explaining complicated concepts in an easy to understand fashion... not a lot of people can manage that... especially without being patronising...my man is a star, pardon the pun...
@himashah2128
@himashah2128 Год назад
Was literally looking for a video that explains this topic in depth..but my expectations were not meant to be fulfilled until I found this video🙌🏻thanks for sharing this video..
@stbny4444
@stbny4444 11 месяцев назад
What a well done video. Amazing clarity and simplicity.
@josephgrant6300
@josephgrant6300 5 лет назад
So glad I found your channel! Thank you!
@Taricus
@Taricus 5 лет назад
This video is so impressive! It covers so many things that astronomy and astrophysics classes would have in a textbook, but it stays entertaining and fun to watch ^_^
@DucLemd
@DucLemd 5 лет назад
I really like your videos. It's also unbelievable that more than 6 months later, we finally can capture a picture of a black hole.
@AlokAwasthii
@AlokAwasthii 3 года назад
This video hooked me to your channel. Thanks for providing such in depth knowledge :) . Also I love your intro songs and animation.
@vivekpanchal3338
@vivekpanchal3338 5 лет назад
Wow, your work is easy to understand professors. 👌👌👌👌
@rafaelakkauy1004
@rafaelakkauy1004 2 года назад
Professor dave I'm a teacher and I've got to hand it to you. You do such a good job simplifying difficult ideas that it's beautiful to see as well as being informative and enjoyable. Rock on :)))))
@ronburgundych.4634
@ronburgundych.4634 3 года назад
I have an exam tomorrow and this video hit nearly every vocab term for the star death section on my review sheet. Thank you so much!
@majalaja799
@majalaja799 Год назад
such a great video! I really struggled to understand it all, but this made things so clear. thank you!!!!!
@bens.5127
@bens.5127 4 года назад
Effortless knowledge. You are one smart guy, Dave! Thanks for sharing!
@shocbomb23
@shocbomb23 5 лет назад
You should do videos over time about all the possible Hypothetical stars
@Swaggaccino
@Swaggaccino 3 года назад
this
@-trustworthy-3950
@-trustworthy-3950 2 года назад
You are indeed a truly hard-working RU-vidR and explain everything properly and in a fun way keep it up plzz
@merveilmeok2416
@merveilmeok2416 4 года назад
Great job for this video! I find this video very valuable and explains information between useful and how to the professor can explain to the limit without using difficulty words in science for non-scientists. Thanks. It takes an “art” for information video and this young professor to stay in this limit of giving us the information without yawning. I give Professor Dave an A+.
@carolynnbrunsdon6165
@carolynnbrunsdon6165 4 года назад
Honestly this video is so much appreciated for my test tomorrow T.T
@spacetraveler3286
@spacetraveler3286 5 лет назад
That was the best explained video I have seen. Well done you made it easier for some of us to understand all this stuff. Worth subscribing to 👍
@cristenpantano3794
@cristenpantano3794 4 года назад
Fantastic explanation of this very complex process. Thank you!
@jobyjohn7576
@jobyjohn7576 5 лет назад
Super simple explanation ,everyone can understand !!THANK YOU!!
@RigelStarxBetelgeuseVirility
@RigelStarxBetelgeuseVirility 2 года назад
Thank you, Professor Dave. Love it!
@harshsinghal4342
@harshsinghal4342 5 лет назад
I think that this video is really good and deserves much more views than it actually has. Your channel is way too good than others.
@sanjay46u
@sanjay46u Год назад
Nice way to explain the life cycle of stars which makes easy to understand the giant concept of red giant and other stages of dying star. Kudos!
@yanoshgloxinia
@yanoshgloxinia 4 года назад
I have an Astronomy class this semester and the students teach each other so I am happy I could find someone to help me teach (not really me but 🤫) so thank you. 😂✌️
@BigMuff75
@BigMuff75 3 года назад
I was wondering - if the universe fell back and collapsed and expanded into / out of another big bang - could / would chemistry and physics be different that time? Or the distribution between matter and antimatter?
@avparamesh
@avparamesh 5 лет назад
I always had a confusion on this topic. Good video to clarify those doubts.
@OmegaVideoGameGod
@OmegaVideoGameGod 4 года назад
@Professor Dave, just subscribed thanks for making these videos. :D
@jensphiliphohmann1876
@jensphiliphohmann1876 4 года назад
13:38f > _This object is called a black hole._ No, it's called _the singularity of_ a black hole. The black hole itself is the inner part of the point masse's gravitational field which is divided from the rest of spacetime by an event horizon. Note that this is just the simplest case of a SCHWARZSCHILD black hole which doesn't rotate which most black holes will.
@Ender3264
@Ender3264 4 года назад
The centers of spinning black holes are called ringularities. 😉
@nebtheweb8885
@nebtheweb8885 4 года назад
And now we have 'white holes'.
@Francois424
@Francois424 5 лет назад
I thought that an M-class star, especially the smaller ones, didn't experience a Red Giant stage? That they went to White Dwarf in a more "relaxed" manner if you will. Can you enlighten me on that ? I loved the vid; thanks !
@rhowee2011
@rhowee2011 3 года назад
I really understand everything in a very easy way. thank you for explaining it in a very understandable way 😊
@hanes28
@hanes28 Год назад
Well put together! Understandable and very informative!
@rafaelricardovilorio602
@rafaelricardovilorio602 5 лет назад
This episode has been particularly special for me because I often wonder about stars, and I daydream that they are living things.
@HEXCODESexe
@HEXCODESexe 5 лет назад
@Th30r3t1ca1 phy51c5 Betelgeuse is the cool kid from the block.
@HEXCODESexe
@HEXCODESexe 5 лет назад
@Th30r3t1ca1 phy51c5 Just don't mess with Ton 618 😨
@taresauce3759
@taresauce3759 4 года назад
me:*sees thumbnail* also me:EVOLUTIONS?
@markdristy
@markdristy 3 года назад
This is the best quick explanation of star life-cycles that I have seen.
@sidu130892
@sidu130892 4 года назад
This was super amazing and super interesting. You have made it so simple to understand
@JohnWayne-86ed
@JohnWayne-86ed 5 лет назад
Who's here after the first picture of a black hole was revealed?
@RetroPianoGuy
@RetroPianoGuy 5 лет назад
Not me. The theory of relativity breaks down at the center of a black hole. People like to say "infinite density", including this video, but what actually happens is unknown, and the theory of relativity does not provide the answer. Black holes are fascinating phenomena and we are circling one right now! But it is not infinitely dense. It has a known mass and a known volume as well. Why not just calculate the density from that?
@afzumohammed2799
@afzumohammed2799 5 лет назад
Me
@diamondgeezertunes
@diamondgeezertunes 5 лет назад
Not me
@josephisrael8959
@josephisrael8959 5 лет назад
@@RetroPianoGuy What's the mass and volume?
@kenskog
@kenskog 5 лет назад
@@RetroPianoGuy Because all the mass of the black hole is on the singularity, which is infinitly small (planck length). How do you calculate density of something infinitly small =)
@fartopiaa
@fartopiaa 5 лет назад
This was very well explained. The images and animations you used to show it was "STELLAR." Get it? Overall, great video. You earned a new subscriber. Your videos are neat, and I feel like I could show these to my science teacher. Thank you.
@nirupamam2814
@nirupamam2814 5 лет назад
You are the best professor ever and u made me to understand the thing which I had been searching from 2 years...
@urmanghaffaarian5774
@urmanghaffaarian5774 Год назад
Thanks! I was looking for these informations for long time.
@kenichiotaku3693
@kenichiotaku3693 4 года назад
With the knowledge researched for this video and subsequently put out by it we can now be truly humble in the face of our maker, that turns out not to be a Who but a very long natural process. As astrophysics professor Lawrence Krauss put it, "So, forget Jesus. The stars died so that you could be here today." x'D
@WilbertLek
@WilbertLek 4 года назад
Hear, hear!
@arhmlmao
@arhmlmao 5 лет назад
"lets kill some stars" *insert intro*
@maheshkandgule4266
@maheshkandgule4266 5 лет назад
Hahahaahaha.
@ameter6422
@ameter6422 5 лет назад
what dont kill the our sun
@jayaramanganapathi9385
@jayaramanganapathi9385 4 года назад
Great presentation, done in a such a precise manner.
@miger12
@miger12 5 лет назад
Brilliant Dave! Best explanation I have seen in RU-vid 👍
@Schizniit
@Schizniit 3 года назад
How are people not utterly breathtaken by astronomy? I'm glad I spent my childhood looking through a telescope and wanting to study the universe with my own eyes. Flat earthers clearly haven't done so enough.
@Gorth_the_Ork
@Gorth_the_Ork 2 года назад
Nah, they rather believe whatever they don't understand just makes no sense, and if it doesn't make sense to them it can't be right... and then imagine everything to be made of nothing but light, and all the beautiful special sky-lights must be very close to us because we're so goddamn special! That's why they can't accept the sun, moon and stars are millions and billions of miles away... It would make them feel a lot less special... They can't handle their own insignificance! So they keep telling themselves how special and important they are... I'm not familiar with psychology, but it could be some sort "defense mechanism" to avoid having an existential crysis.
@ME-dl6te
@ME-dl6te 5 лет назад
I know you are dumbing it down for others but red dwarfs (the most common star) won't super Nova or even nova but they will live the longest and fizzle down like a piece of charcoal.
@danyaverplak8910
@danyaverplak8910 5 лет назад
what happens if you fly a satellite near a white dwarfs orbit?
@marvinkitfox3386
@marvinkitfox3386 5 лет назад
@@danyaverplak8910 Define "near" Sufficiently close, the tidal effects (the satellite bit closest to the start experiences a *lot* more gravity that the furthest bit) to shred it to a spagetti of dust.
@sudeshnachakraborty8964
@sudeshnachakraborty8964 Год назад
Very nicely described for beginners! Nice video-graphical presentation!
@anthonymanczak9411
@anthonymanczak9411 2 года назад
The sheer thought process of how dense a Neutron Star is is insane. Like, I can't even wrap my mind around it.
@princeofcupspoc9073
@princeofcupspoc9073 4 года назад
Pretty good. Of course there were a few over-simplifications, which make it easier to understand for the people that can't do the math. For example, proton + electron --> neutron is not so much the electron being swallowed by the proton, as it is the energy of the electron being used to flip a quark in the proton, via the weak force. Well done on the stellar burning cycle yielding said elements. And Chandra was a terrible driver. I almost hit his car getting off Lake Shore Drive on the way to school. I think it was a black Mercedes. I love the story of his work on stellar nucleosynthesis. As he was mapping stellar spectra (every nuclear reaction has a distinct spectra), there was one spectra that didn't match up with any of the known reaction. Not one to be wrong, since he was sure that reaction had to be there, he dug up the original nuclear physics paper, and found a mathematical error. Correcting the math, the reaction fell perfectly in place. So much for that student's thesis defense comity. Oh the embarrassment!
@vari1535
@vari1535 4 года назад
Professor Dave again, let's k i l l s o m e s t a r s.
@vanbistrow7145
@vanbistrow7145 Год назад
Wonderful explanations! Clear and simple! Thank you!
@sumaiyatahsin4707
@sumaiyatahsin4707 3 года назад
Wow amazing!!! I was in the middle of the vid and couldn't help going back and giving a big thumbsup. So beautifully nd interestingly explained. Awesome Most perfect explanation with a perfect tone as necessary. Got new subscriber !
@ClemensAlive
@ClemensAlive 4 года назад
That's romantic. Julery is literally made out of star material! DEAD STAR MATERIAL! 😈😈😈
@LJMiho
@LJMiho 4 года назад
*_EVERYTHING_* in the Universe, including ourselves, was made out of "dead" star material. *With the exception of Hydrogen and Helium, which were initially created in the aftermath of "The Big Bang" that created the Universe.
@Makermook
@Makermook 4 года назад
*jewelry
@jamesgrist1101
@jamesgrist1101 4 года назад
no, its made from within the Earth. The idea that its made from remnants of distant stars is a myth, a myth extolled by sheeple and believed only by other sheeple.
@Tornadopelt
@Tornadopelt 4 года назад
@@jamesgrist1101 Oh, REALLY...? Care to back that up, James Grist?
@plasmaastronaut
@plasmaastronaut 4 года назад
​@@Tornadopelt sure, just give me a few million quid, like the establishment has given the astro-myth community $billions for the last 70 years to propound their nonsense, and i'll demonstrate matter creation and nuclear fusion with a small scale model of the Earth. the safire project team have already done it.
@milkcasanova1662
@milkcasanova1662 3 года назад
And now, let's learn more about black holes....... ends video......😭
@ProfessorDaveExplains
@ProfessorDaveExplains 3 года назад
Well go to the next one in the playlist!
@Sniffzoer
@Sniffzoer 5 лет назад
Very nice Dave! You earned a sub and my attention. 👍
@aleleeinnaleleeinn9110
@aleleeinnaleleeinn9110 5 лет назад
The music is silly, but the content is esxcellent. A concise explanation without the math. Science for everyone. Nice job.
@nou3838
@nou3838 4 года назад
14:14 me after seing an image of a black hole 🤔
@skurinski
@skurinski 3 года назад
he's talking about the singularity beyond the event horizon
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