Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy

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6 років тому

Have you ever wondered whether black holes exist? And if so, how do astronomers study them? What would it be like to be close to a black hole? UCSC astrophysicist Dr. Martin Gaskell has spent his career studying what happens around supermassive black holes in the centers of distant galaxies. He explains in simple, everyday language recent progress in understanding what is going on around these extraordinary objects as they eat up matter around them. Martin Gaskell is a researcher in the Department of Astronomy and Astrophysics at UCSC. He has over four decades of experience working on issues related to supermassive black holes (including a Ph.D.), a couple of hundred publications, and many research grants. He was a finalist for five years in a row for top teaching award at the University of Nebraska. Martin also engages in many popular talks to the public. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx

КОМЕНТАРІ: 395
@corpsmind5920
@corpsmind5920 5 років тому
Now that's a teacher. Someone who can teach you 5 different things in one presentation.
@danzimbr
@danzimbr 5 років тому
MAN i would LOVE to hang out with this adorable old man and talk about the Universe! Thanks for sharing your knowledge, Mr. Martin Gaskell.
@johnjohnson6423
@johnjohnson6423 5 років тому
Come join us at the Nebraska Star Party from July 28th to August 2nd, 2019. You will be able to meet Dr. Gaskill. He will be one of our keynote speakers!
@leslawrenson
@leslawrenson 5 років тому
You'd do better to hang out with the likes of Wal Thornhill and Don Scott - proper scientists, who understand exactly how the Cosmos actually works. Check out their work.
@mikerose51
@mikerose51 4 роки тому
I’d take mushrooms with him 🍄💀🤤😳🤪
@K1lostream
@K1lostream 4 роки тому
TED organisers take note - get more speakers like this dude, and less of the UV tattoo/Synestia types. He thinks clearly, speaks clearly, and gets his technical points across in an accessible way without dumbing-down, or patronising the audience. My opinion of TED talks is, temporarily at least, restored!
@gens0kyo
@gens0kyo 4 роки тому
?
@twenty-fifth420
@twenty-fifth420 4 роки тому
java snip He or she or they are saying that this man speaks clearly compared to other ted talkers who ramble on. Which is subjective but I do agree with OP.
@twenty-fifth420
@twenty-fifth420 4 роки тому
java snip He or she or they are saying that this man speaks clearly compared to other ted talkers who ramble on. Which is subjective but I do agree with OP.
@happycoco2967
@happycoco2967 3 роки тому
Yes. A TED talk where the speaker is not afraid of losing his audience over formal scientific names, shows actual evidence of the subject and not just meaningless, flashy photos of nice stars and does not try to blow audience mind with phrases like "there's millions and millions of starts! wow! that's incredible isn't it?" NO ITS NOT INCREDIBLE, ITS BASIC KNOWLEGE ABOUT THE UNIVERSE AND I COME TO THIS VIDEOS TO ACTUALLY LEARN STUFF. And with this beautiful talk - I did. Thank you Dr. Martin Gaskell for your amazing talk, your explanations were very approachable and the demonstrations (in the form of photos, videos and the live one with the apple and honey) were as informative as they were entertaining. Hope to see you again on TED or any other platform!
@JosieGonzalez
@JosieGonzalez 4 роки тому
He’s amazing. The way he explains things thoroughly.
@paulramirez632
@paulramirez632 4 роки тому
Yes, he is.
@javinova2091
@javinova2091 4 роки тому
You're amazing babygirl
@kwicksand12
@kwicksand12 4 роки тому
You know he’s a great teacher when you’ve watched several videos on the same topic but still had at least 2 or 3 “oh sh*t” moments during his speech.
@EarthChampion_TophBeifong
@EarthChampion_TophBeifong 5 років тому
Yes in the beginning I did notice the mouth sounds he was making but I quickly forgot about it when I focused astonishing on the information he was providing, such an interesting talk!
@mikerose51
@mikerose51 4 роки тому
Lol u lien 🤣
@Galactic_hippie1111
@Galactic_hippie1111 5 років тому
i love this dude! like the ideal old British professor.
@peacewalking__
@peacewalking__ 5 років тому
English*
@kendomyers
@kendomyers 4 роки тому
@@peacewalking__ Is your comment meant to mean that he is not British? And if so, what makes him not British?
@peacewalking__
@peacewalking__ 4 роки тому
@@kendomyers He himself is British. But he is not THE ideol British professor, he is the 'ideol' English professor stereotype. Scottish and Irish ones are different.
@kendomyers
@kendomyers 4 роки тому
@@peacewalking__ Ah, that... actually makes sense. Agreed. I am curious why only this guy, Dr. Gaskel, has a chorus of people praising his teaching ability... He was involved in a major court case where he was denied a job for being a creationist christian. Hhmmm
@brettconv83
@brettconv83 4 роки тому
Morty Sanchez Interesting, I presume he is entitled to his personal beliefs thought right? And to be denied a job sounds like a loss for the employer
@eviljedi1496
@eviljedi1496 5 років тому
I can't even imagine what would happen if all teachers in school / professors in universities would be only half (!) a as good as this guy o_O. Very good explanation technic for understanding complex mechanics.
@marcusashwell8314
@marcusashwell8314 3 роки тому
They are too busy poisoning the minds of kids to be interesting
@badmintongo4832
@badmintongo4832 2 роки тому
Complex? This is elementary, my dear.
@shrarneomar8080
@shrarneomar8080 6 років тому
Very nice done presentation, Mr. Gaskell! :)
@pilisjose
@pilisjose 5 років тому
Wow.... What a fascinating lecture. I would love to assist to this Professor's class, he really knows how to keep you focused in these interesting topics!! Great job TED and thank you very much to Dr. Gaskell for his time.
@coolthought8456
@coolthought8456 5 років тому
Most brilliant explanation of mind boggling objects in a very simple way that make it extremely easy to understand.
@alaminmbamba
@alaminmbamba 5 років тому
Excellent lecture.
@stephentrebble
@stephentrebble 5 років тому
Ideal physic professor. Very pleasing to listen too even if one had no interest in said topic.
@hasanshirazi9535
@hasanshirazi9535 5 років тому
What a great lecture and knowledgeable gentleman.
@divyamarkande35
@divyamarkande35 2 роки тому
Oh he is definitely on the Ted Stage for a reason! ❤️🙌🙌
@yashasvim1145
@yashasvim1145 5 років тому
I love such speakers!! Awesome!!
@mukundswamyya9058
@mukundswamyya9058 5 років тому
Yashasvi M who doesn't love old pioneers giving us their gyaan.
@christophercharlesblack2529
@christophercharlesblack2529 5 років тому
Excellent talk, great public speaking. Screw the sound quality...this is quality material.
@bharathvaj3471
@bharathvaj3471 5 років тому
I liked the way he takes and keeps back av remote inside pocket . Lecture was superb
@MonsieurJarrux
@MonsieurJarrux 4 роки тому
For the first time I understand why accretion disk are produces heat. Very clear and very interesting.
@nfactorial4074
@nfactorial4074 4 роки тому
This gave me ASMR. Awesome talk Martin thank you
@fallstar130
@fallstar130 5 років тому
Someone get this poor man a glass of water
@respwnonme1030
@respwnonme1030 5 років тому
It's the mic that's in his beard. You heard his beard, lol.
@coryhoward3801
@coryhoward3801 5 років тому
it enrages me. nothing angers me more than that noise.
@jake5952
@jake5952 5 років тому
That's what I heard too.
@sharicamonet9675
@sharicamonet9675 5 років тому
@@coryhoward3801 omg me too
@jasonwhyttes1679
@jasonwhyttes1679 5 років тому
i didnt hear it until i ventured down to the comment section :D
@jaherrick
@jaherrick 5 років тому
These videos should be shown in schools. Much more useful and interesting than science lessons.
@jeffreystreeter5381
@jeffreystreeter5381 Рік тому
Excellent presenter. Fascinating. Great job.
@aliakbar307
@aliakbar307 2 роки тому
Thank you so much sir. May you have a good health and others shall benefit from your wisdom, and knowledge.
@MrAbdoo9911
@MrAbdoo9911 5 років тому
Thanks, it's really clear seminar
@m0bz0mb39
@m0bz0mb39 3 роки тому
Wow! I knew about plasars, quasars, and blazars and how much energy they that can be produce but no one actually explained to me why and how it happens. That was fascinating
@erikq9788
@erikq9788 5 років тому
People will complain about everything. I was soaking in all this knowledge and didn’t even pay attention to the sounds his mouth made. For the love of god can people just stop complaining.
@vmardian
@vmardian 5 років тому
Is that a complaint regarding other people?
@unkleRucker21
@unkleRucker21 5 років тому
I didnt notice it either they are just trolls who cares what they say.
@robertjenkins6132
@robertjenkins6132 5 років тому
I didn't even notice any unusual sounds. I guess I am deaf.
@dave93x
@dave93x 5 років тому
@@unkleRucker21 we're trolls for pointing something out that's distracting? Mate, I can hear this guy's tongue unstick from the roof of his mouth as he's talking. Not a knock on him or what he's saying. It's just hard to get past it once you hear it.
@unkleRucker21
@unkleRucker21 5 років тому
@@dave93x its easy to comment on something so meaningless. When watching this video i dont worry about little hiccups unlike trolls. I just focus instead of worrying about speech impediments. Have you heard of isaac Arthur?
@harikumar5858
@harikumar5858 5 років тому
Beautifully explained.
@arnoldshmitt4969
@arnoldshmitt4969 4 роки тому
HE Explained it very nicely i am impressed well done sir
@Age_of_Apocalypse
@Age_of_Apocalypse 4 роки тому
Very, very interesting video: Thank You!
@vantagemove2957
@vantagemove2957 3 роки тому
His way to explain is literally interesting
@bhargavanaidu8470
@bhargavanaidu8470 5 років тому
Thanq professor
@clintwolf1557
@clintwolf1557 5 років тому
Fantastic talk. Thanks.
@nithyapanicker3128
@nithyapanicker3128 3 роки тому
Great presentation. Thank you
@rogeliocamacho8548
@rogeliocamacho8548 5 років тому
Great conference.
@asgeir6420
@asgeir6420 5 років тому
Amazing!
@Aman-tf8bt
@Aman-tf8bt 5 років тому
Thanks sir it was really a nice lecture
@praveenkumar2k
@praveenkumar2k 5 років тому
Wonderful explanation
@jkjk-uy1qi
@jkjk-uy1qi 5 років тому
Best explanation ever
@poojasabharwal55
@poojasabharwal55 5 років тому
Best professor ever!
@neponsetriver
@neponsetriver 5 років тому
He must be a scientist with all those pens, but he forgot to bring his pocket protector. lol
@gergelyfliegauf5287
@gergelyfliegauf5287 5 років тому
Brilliant! 😌
@VG-of5yk
@VG-of5yk 2 роки тому
Love it! Very informative. Good 4 ASMR as well.
@ayush3929
@ayush3929 5 років тому
nice work sir!!!!
@beautifulcatastrophe
@beautifulcatastrophe 4 роки тому
Awesome.....I love space talks
@riyanath7369
@riyanath7369 5 років тому
Well explained.
@debashisbanerjee810
@debashisbanerjee810 4 роки тому
Thanks to Muse I found such nice lecture
@thanefalkner6156
@thanefalkner6156 5 років тому
Great video. Finally a astro scientist explains it for lamens like me.
@smb7304
@smb7304 5 років тому
Interesting stuff
@obeace4495
@obeace4495 4 роки тому
Just needs a noise gate for that mic. Dudes a smart cookie and loved listening to him
@jorgepeterbarton
@jorgepeterbarton 5 років тому
If we have filmed stars orbiting Sag A... Wont there at some point be one travelling behind it and gravitational lensing effect?
@NoahS4226
@NoahS4226 4 роки тому
Hypothetically yes. Or at least that's what I've always imagined. Statistically speaking we should have as much footage of that as we've had of them going in front
@mithuraveendran8699
@mithuraveendran8699 3 роки тому
Nice. Fascinating.
@ethitlan
@ethitlan 5 років тому
This is definitely gonna help me to get into NASA. Thank you, sir! I'm trying to be respectful.
@rahuldalal4763
@rahuldalal4763 5 років тому
Awesome
@mjjumps
@mjjumps 5 років тому
How about a supermassive glass of water
@peacefulwindsong5270
@peacefulwindsong5270 5 років тому
Lol, that was funny. 😂
@joshuahack3231
@joshuahack3231 5 років тому
Stoned and read this comment got me good
@blunttime1089
@blunttime1089 5 років тому
Deaddd
@BrianGivensYtube
@BrianGivensYtube 4 роки тому
I'm pretty sure it's his beard
@GtheMVP
@GtheMVP 4 роки тому
haha, first thing I thought 3 seconds in. I just couldn't have stated it so cleverly. This unlistenable, especially with headphones on.
@fridaqi2810
@fridaqi2810 5 років тому
admirable
@tron1007r
@tron1007r 2 роки тому
Very well done
@sreejithvijaykumar2190
@sreejithvijaykumar2190 3 роки тому
Very good lecture.
@lombardo141
@lombardo141 5 років тому
I will never fail his classes. 😧
@mat-only
@mat-only 3 роки тому
Amazing dr😎
@willzhang4117
@willzhang4117 5 років тому
Great!
@IMN602
@IMN602 3 роки тому
Man i love this guy!
@asokaranjan1844
@asokaranjan1844 2 роки тому
Good presentation very interesting.
@fahdmasud
@fahdmasud 5 років тому
so we see the light from the 'white hot' heat from 3C273 (17:29) but cannot see it but can't see the light in the other capture (10:53)? can someone please explain that to me?
@guitaristxcore
@guitaristxcore 5 років тому
Different light spectra being viewed. Also, our galactic nucleus is not going through a period of high activity, so it isnt emitting as brightly as galaxies whose nucleus are more active.
@nigel900
@nigel900 5 років тому
Very good.
@reddiamond239
@reddiamond239 3 роки тому
Majestät the center of the univers is the earth. Thank you .
@attoblaze3395
@attoblaze3395 4 роки тому
good lecture, very informative
@christinestill1990
@christinestill1990 4 роки тому
Oh please, zoom in to what he is talking about if u intend to post online!
@samiulbari2233
@samiulbari2233 5 років тому
Pretty awesome
@abhisheksrivastava7474
@abhisheksrivastava7474 4 роки тому
Just so you know I am clapping!
@thesetruths1404
@thesetruths1404 5 років тому
My best Dr Spock impression... Fascinating. Well done!
@WillOfTheWeb
@WillOfTheWeb 5 років тому
Brilliant talk. I found this fascinating. Always thought bl holes consumed everything around them.
@DosDonts101
@DosDonts101 5 років тому
it all makes sense
@jj-iu3ni
@jj-iu3ni 5 років тому
Spin a penny on the floor Open the door Spin another penny on the door Place magnet in the middle You have created a warp drive Just need dark matter
@ptrkmr
@ptrkmr 5 років тому
I’m sorry but what? That was way too vague.
@jj-iu3ni
@jj-iu3ni 5 років тому
@@ptrkmr The realms of undiscovered science is vague.
@ptrkmr
@ptrkmr 5 років тому
@@jj-iu3ni Doesn't mean you shouldn't speak concise lol
@jj-iu3ni
@jj-iu3ni 5 років тому
@@ptrkmr ok I don't anymore what
@kbbeats3099
@kbbeats3099 5 років тому
@@jj-iu3ni where are you from? If English isn't your first language, type in your native tongue, and we can just hit translate.
@3094usmc
@3094usmc 5 років тому
So what happens after 2002????
@realdjtoddthunder1323
@realdjtoddthunder1323 4 роки тому
I GUESS ITS LIKE ,IF YOU THROW SOMTHING IN SPACE,,,IT WILL KEEP GOING WITH OUT STOPPING UNLES SOMTHING STOPS IT,,,,I GUESS WHEN A SUPER MASSIVE STAR IMPLODES,,,IT GETS STUCK IN A CONTINUOUS IMPLOSION ….JUST AMAZING
@antilarge7860
@antilarge7860 2 роки тому
Now they believe that the center of the milky way is dark matter. Amazing how smart these guys are.
@reddiamond239
@reddiamond239 3 роки тому
Majestät Berfect teatcher .thank you Gentelman .
@abihakhan3426
@abihakhan3426 3 роки тому
Wowwww what an informative video thank you doctor 🌹💋🌺🇵🇰🇵🇰
@charlieangkor8649
@charlieangkor8649 5 років тому
There seem to be grooves in the Saturn rings. What would happen if we put the Saturn rings into a record player? Like a supermassive record player? What would it sound like?
@nicolaikaasgaard7231
@nicolaikaasgaard7231 5 років тому
Charlie Angkor that’s the best question I’ve ever heard about Saturns rings😂
@lordofthewoods
@lordofthewoods 5 років тому
@ Charlie: White Noise : )
@TheBoundBowman
@TheBoundBowman 5 років тому
Despacito, probably.
@shahzadaslam384
@shahzadaslam384 5 років тому
I wish this man was my father :) he would have amazed me very day
@ptrkmr
@ptrkmr 5 років тому
Could a secretion disk kick off basic fusion due to the same friction-like principles at extremely high velocities with the right composition and difference in velocity?
@Involent
@Involent 5 років тому
Accretion disc*
@NoahS4226
@NoahS4226 4 роки тому
Accretion disk* and what kind of composition did you have in mind cuz I'm not sure
@salmahmohamed6048
@salmahmohamed6048 5 років тому
Ah... I learn something new.. :) :) 👍👍👍
@bhavinibhatti8598
@bhavinibhatti8598 3 роки тому
best proffesuional
@jonathanchang1574
@jonathanchang1574 5 років тому
This lecture is such a muse.
@versesquared4945
@versesquared4945 5 років тому
Can antimatter fall into a blackhole ? Could that account for the missing stuff?
@guitaristxcore
@guitaristxcore 5 років тому
Yes. No.
@lordofthewoods
@lordofthewoods 5 років тому
@ Verse: Are you kidding??? The Universe would blow a head gasket!
@factfinder4051
@factfinder4051 5 років тому
I want you to be my teacher!
@NoEgg4u
@NoEgg4u 4 роки тому
@16:39 He did not say "Simon Says".
@nickbishop959
@nickbishop959 5 років тому
The squishy noise is actually the microphone rubbing against his beard as you can see in 3:15
@SimonSozzi7258
@SimonSozzi7258 5 років тому
Water!
@trevorg4405
@trevorg4405 5 років тому
man its killing me
@mickynick9888
@mickynick9888 2 місяці тому
"itd be dark without the sun about all" not like it would be absolutely freezing and everything would die 😂
@oswellplieades8495
@oswellplieades8495 5 років тому
Luckily I was able to turn my audio down so that the quieter frequencies can be gated out. Now his voice sounds less crackly
@milanpintar
@milanpintar 5 років тому
large amounts of matter slow down time because the universe can’t process that much information at once, it’s overloaded.
@ugochukwuudeh6625
@ugochukwuudeh6625 5 років тому
Milan Pintar yup, we are definitely living in a simulation
@milanpintar
@milanpintar 5 років тому
@@ugochukwuudeh6625 For sure
@lordofthewoods
@lordofthewoods 5 років тому
@ Milan: So why doesn't someone add more RAM? I have some here...
@kat9020
@kat9020 2 роки тому
This guy is my mum's cousin. I try to be just like him and to some day become an astro physicist, just like him.
@theplayer2545
@theplayer2545 5 років тому
Came for the Knowledge Stayed for the Wise old man Didn't come for the Lip snacking ASMR ..I wanted to relax and learn not sleep
@mike-5356
@mike-5356 5 років тому
is there anything that does not have gravitational potential energy? (the dam example)
@TheStoneBreak
@TheStoneBreak 5 років тому
Potential energy is relative to position. So for simplicity's sake, you could say that an object that is securely on the ground with no potential of motion has no potential energy.
@johnernst8718
@johnernst8718 4 роки тому
Those two arcs have two totally different centers
@BGTuyau
@BGTuyau Рік тому
How are all these extremely distant phenomena observed to a degree that their mechanism can be explained in such detail?
@seansimms8503
@seansimms8503 3 місяці тому
Humans have mastered every wavelength of the electromagnetic spectrum, from radio, to gamma, infra red, uv, micro, radio, visible light and made sensors out of these energies, elements react the same be it here on earth or from a galaxy far far away, all they need is to get that energy from wherever it came and they can detect what element is present in whatever the light emitted from, they are working on subatomic particles as I type, neutrinos have been harvested since the late 1980s, they have the IceCube thing in Antarctica now, mulon detectors have been in use for atleast a decade now, see, blackhole effect mass/matter, neutrinos and mulons rarely interact with matter and have zero mass I believe.
@clintclintclint
@clintclintclint 5 років тому
I wish the microphone wasn't so close to his mouth so I wouldn't have to listen to sound of his lips and tongue making that suction and smacking noise that sounds like someone is eating with their mouth open. Loved the lecture though! Absolutely fascinating.
@brettelliott4116
@brettelliott4116 5 років тому
Clint Lewis your wish is granted my milk drinking friend. You now have two wishes left. Use them wisely.
@herglawrmr33
@herglawrmr33 5 років тому
Lol
@herglawrmr33
@herglawrmr33 5 років тому
@@brettelliott4116 my wish is for 1 single glass of delicious whole milk to go with my peanut butter sandwich. That is my only wish, not world peace - just milk in my mouth
@tamashumi7961
@tamashumi7961 5 років тому
Agreed, is it not his beard hair scratching over the mic though?
@spriggan9999
@spriggan9999 5 років тому
It sounds like someone is working with wet clay. Clayground Fan 69. Links Disease. He has it. Mourn.
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