I'll be honest, I still haven't re-read my thesis... Twenty years going. Occasionally I cracked it open, then shrieked like a little girl and slamed it shut. All I can see is things I want to edit some more and people that are no longer around. That's a very brave couple of videos you put out there. For those who are not in the academia, my supervisor said it best, when she told me; it feels like reading the diary of your teenage self.
@timberwolf15754 жыл бұрын
Seconded. Also, it is ncredibly annoying when somebody publishes a paper that fills in some tiny little corner of knowledge that subtly changes how your work should be interpreted and how you would have written it.
@shreethesmart29424 жыл бұрын
This is pure content, no lies no clickbaits just pure astrophysics...... Appreciate your hard work....... If everyone was like you , world would have been a better place..
@01Natalcia014 жыл бұрын
I really want to see you playing a "Universe Sandbox" game with some explanations from you :) It'll be cool for us :D
@HM-cw8im2 жыл бұрын
Along with Space Engine
@edgeeffect4 жыл бұрын
When I was doing my "O" levels, I was aiming for some kind of career in science.... probably "just a humble lab tech". But then I discovered computers (it was the early 80s) and got into that in a big way. Computer education in those days and now was all "business, business, business, games, business" but I didn't listen, I thought "I'm going to write code for scientists". The idea that bloody scientists would WRITE THEIR OWN CODE never crossed my mind. So for the last 1000 years, I've been writing tedious, unstimulating business applications and science has been relegated to the odd chemistry experiment in the shed and watching Dr. Becky on KZfaq. Moral: pay more attention in class, kids!
@cybisz28834 жыл бұрын
Computer education (at least as of 10 years ago) was less business and more "cool" topics, e.g., artificial intelligence & computer graphics, data structures & algorithms, hardware architecture & operating systems... and practically nothing on web development, databases, project management, teamwork, i.e., the things you actually do upon graduation. I was passionate about computer science and the university program fed into that passion. Two years into my first job killed it entirely. Now my job is just something I do for money and I really kinda hate it. Moral: Don't say with a job you hate just because it pays well. Passion isn't something you can just rekindle after that spark is snuffed out.
@suokkos4 жыл бұрын
@@cybisz2883 , I would say it depends on CS course what you study. Some lower level programs with only bachelor's degree often are more towards business only. While master level programs are much more focused towards theory with ability select between science or engineering. I studied in engineering program where there was ability choose science focus combined with minor in theoretical physics. But I didn't do science focus because my nature is more like old school hacker type person. (No. Nothing like hackers in popular culture)
@sdaniel91294 жыл бұрын
@@cybisz2883 Money is very bad for the planet and if we don't get rid of it, all life on Earth will die and no life will be possible for millions of years!
@Neilhuny4 жыл бұрын
Fascinating discussion! As another person that got in to computers in the early 80's I am delighted I did! My first passion was, and always will be, forestry & ecology, but that comes at a heavy price in my experience - flies. Midges or mosquitoes tip the balance in favour of my 2nd love - computers. So I worked in IT - business, business, business! I know that code I wrote in the 90's and naughties, at least, is still crucial to the success of world class airlines, banks, supermarkets and insurance companies, I suspect some has been superseded, though (arrogantly?) not much. That, apart from being frigging enjoyable, paid for me to travel the world, see trees in all climates, touch and see plants in the most fantastic places, marry well, eat well, party well. People can love more than one thing, imho. I haven't yet mentioned a love of history, politics, all sciences.... I might offer to arm-wrestle Dr Becky over which is the best science; I'm going with botany over physics.
@Neilhuny4 жыл бұрын
@@sdaniel9129 I mentioned arm-wrestling Dr Becky, but I make the same offer to you: you want to get rid of money and claim it to be the root of all evil - I paraphrase. To misquote Churchill "‘Many forms of capitalism have been tried, and will be tried in this world of sin and woe. No one pretends that capitalism is perfect or all-wise. Indeed it has been said that capitalism is the worst form of existence except for all those other forms that have been tried from time to time.…’ Money, of itself, isn't bad: what do you suggest replaces it? How will you save the world? I suspect I will regret asking.
@bimmergeezer4 жыл бұрын
Dr. Becky, this is the best 15 minutes of my day. You present heavy stuff with clarity and joy. Thank you so very much.
@axelivantellomartinez15114 жыл бұрын
I knew you were a Swiftie!!! Your work is very inspirational, thank you for sharing it, also for sharing your knowledge and life experiences. P.S. I’m about to finish watching the video and the “Mischief Managed” is an AMAZING way to finish a thesis! I’m emotional now.
@zacp964 жыл бұрын
I thought I read this in my master's project... I definitely did! I was looking at infalling groups of galaxies into clusters, partially detecting them, and partially looking at star formation - out of the smallish sample of groups detected it seemed like there was a peak in star formation around the virial radius which was pretty cool. This has made me so happy that I'm now obsessed with your videos without realising I read your thesis in uni!
@DrBecky4 жыл бұрын
Haha nice! I did that with some colleagues as well - so cool finally putting faces to names you read at masters level
@chrisdoyle13894 жыл бұрын
Thankyou Becky for your important work.Very interesting.Also Thanks for including your support for Black lives matter,It's time for a unified space without bigotry.
@DrBecky4 жыл бұрын
Here here!
@jmanfiji4 жыл бұрын
@@DrBecky Or hear hear!
@TheWinning2474 жыл бұрын
Heh, I managed to get a Monty Python reference into every piece of work I submitted at Uni. Raised a few eyebrows, I tell ya.
@lamegoldfish67364 жыл бұрын
John Cleese is a genius. 😃
@TheWinning2474 жыл бұрын
@pink hot acid boots Alas, I was an Aeronautical Engineering student so I did not. I used "And now for something completely different" as a section heading for more than one submission too...
@connie_d4 жыл бұрын
@@lamegoldfish6736 He's a grumpy old posh boy
@mr514064 жыл бұрын
Love how your nail polish matches the book covers! 💙 Congratulations! Author! Author! ⭐️☮️❤️🌹🎉
@DrBecky4 жыл бұрын
A closet eh... funny you should say that 😆
@DrBecky4 жыл бұрын
Definitely built it myself!
@idkicarus4 жыл бұрын
Thanks so much for all your videos! Watching through your archives has reignited my childhood interest in astronomy. I just bought your book and can't wait to read it!!!
@DrBecky4 жыл бұрын
Hope you enjoy it Jibril! 👍
@neoanderson74 жыл бұрын
I’d like you to know, your book arrived yesterday!! Woohoo!! Got through the preface and chapter 1 before being hauled away to some emergency... 😂. Kills me how you were able to write a thesis like this. I can barely string together 5 pages. Let alone an entire book! 👏🏻
@DrBecky4 жыл бұрын
Hope you enjoy the book!
@neoanderson74 жыл бұрын
Dr. Becky guaranteed! 👍🏻
@duderoony4 жыл бұрын
Loved every bit of it. Thanks for sharing Becks. We appreciate you’re efforts (at uni and here on the tube). Thank you.
@breimalislobodnoime4 жыл бұрын
me, multitasking, hearing 'but you need to be incredibly incredibly dense to trigger the nuclear fusion': oh i know some people
@arasharfa4 жыл бұрын
LOL
@Shenron5574 жыл бұрын
I'm not a native English speaker. What does it mean to say that "people are dense"?
@breimalislobodnoime4 жыл бұрын
@@Shenron557 me neither, you will pick it up with time :) it means they are stupid
@Shenron5574 жыл бұрын
@@breimalislobodnoime oh. Thanks!
@suncat5304 жыл бұрын
@jumbonium you need to be dense AND you need fuel. neutron stars don't have fuel
@paulthomas3332 жыл бұрын
It is rare to hear a summary like this. Thanks!
@MichaelEhling4 жыл бұрын
11:56 "They kill it and keep it dead." «shudder» Galaxies shouldn't mess with the Quenching Gang.
@richardmercer23374 жыл бұрын
I want to congratulate you on taking so long in this series to begin talking about your thesis. Typically (in fact it's a stereotype), postdocs talk about their thesis at every opportunity. Your self-restraint has been admirable! Now, *my* thesis on quantum measurement... OW! Hey! Stop hitting me!
@frankharr94664 жыл бұрын
Oh, that was fun. It's nice to see your nails and the covers of the two books were in sync! I hope you get it all figured out. :)
@prettynormalme274 жыл бұрын
"Mischief Managed"
@antonystringfellow51524 жыл бұрын
Well done Becky! I've been learning about how supermassive black holes can affect the conditions for life in galaxies. I've read that when a galaxy's central black hole absorbs a lot of matter, the radiation it emits can cause more water and organic molecules to form in its molecular clouds. This provides conditions more favourable to life while, at the same time, sterilising the surface of planets that already have life, thus causing a reset. This could go a long way to explaining why we appear to be alone in this galaxy. We know that this galaxy must contain many planets, much older than the Earth, that are capable of supporting life and maybe, at one time, they did. Hopefully, with people like you, we'll learn more about this hypothesis too. I've also become quite fascinated by our Sun, ever since learning that it is unusually stable, even when compared with other stars of the same type. I suspect this wasn't always so. For most of the Earth's existence, it has been home to life but only relatively recently has life moved out of the ocean and onto land. Why did that take so long? The oceans were teaming with complex, multi-cellular life, including vertebrates with brains and eyes (fish), while not even a single, simple plant lived out of the ocean, for millions of years. I suspect this was because our Sun was still too unstable for life to survive outside of the protection and stable environment provided by the ocean. Only once the Sun stopped periodically bombarding the Earth with intense radiation, did the first plants start to colonize the rivers, lakes and surface of the land. If I was younger, and qualified, I'd follow this one up myself.
@antonystringfellow51524 жыл бұрын
Quasars, the most powerful sources of radiation in the Universe, are powered by a black hole. The radiation doesn't come from inside the black hole itself, of course, nothing does. It comes from the in-falling matter. We're not talking theories here. This is a fact, confirmed by observations.
@TreyRuiz4 жыл бұрын
Great video, I'm so excited to hear the ongoing progress of quenching! Don't know if you follow Ethan Siegal, but he wrote a quick piece about green galaxies from their interactions. I saw a picture that included a jellyfish galaxy and was thrilled I knew a little bit more about what I was seeing.
@DanielSkinnerDETTPKS4 жыл бұрын
Although I only managed to get my Associates Degree General from U of A Fort Smith in May 2016; I am able to understand many topics at a higher level. Thanks for presenting the chance to broaden my areas of knowledge. I also look into CfA from Harvard University. I have never had to take an Astronomy course, but I have read Kipp Thorne's book about black holes. Your videos are very entertaining and a joy to watch. Thanks for sharing your knowledge and joy of learning. I just bought your book for my Kindle for PC. I hope to enjoy reading it soon. Peace, Long Life, and Health to all.
@mikeking19514 жыл бұрын
Thank you for that little snippit on "Muse's spectrum ability's" Wow..how good is all that info in one bite so to speak.. Also Well Done, and looking forward to the next chapter (in two years!? ohh man )
@thestonewall304 жыл бұрын
Loved the ending. Loved watching your videos. But after that loved this one the most and real always remember it. I smiled and chilled when I saw it. Thank you thank you
@veiko233 жыл бұрын
I loved that you included everything that has influenced you for your work, including "Bruce Bringsteen", "Harry Potter", etc... to your reference list :)
@harryebbeson4 жыл бұрын
OK, Dr. Becky, I bit on your book. I just downloaded it to my Kindle. Looking forward to reading it. I really enjoy your channel. It is refreshing and educational at the same time. Keep up the great work!
@vaniamehra20753 жыл бұрын
Love how you ended it with “Mischief managed”
@sojolly4 жыл бұрын
Got your book, the illustrations really add to the understanding and enjoyment. Love it.
@KentonBenfield4 жыл бұрын
Do you suspect that your thesis will turn from blue to red as you age?
@androkles044 жыл бұрын
As a massive Tolkien fan, I love that you included a LotR quote in your thesis. That's top-level nerd credit right there.
@terenzo50 Жыл бұрын
My favourite quote from Gilmore Girls: Lorelai: "What's the opposite of ennui?" Sookie: "Off-wee."
@richardchalfan89084 жыл бұрын
Your dedication was beyond outstanding and your Table of Contents remarkable and imaginative!
@ronchaney3824 жыл бұрын
Hi Becky. Can you explain what intergalactic filaments are, what they contain, and how they relate to galaxies? Thanks
@charlesbrightman42374 жыл бұрын
I will defer to the experts, but consider the following: The net effect of solar winds, particles and energy pushing outward from galaxies, continuously, over a prolonged period of time, and other galaxies doing the same, with nothing to stop them from doing so, not only would tend to push galaxies apart from one another giving the appearance of space itself expanding, but would tend to form the cosmic web between galaxies. (And note: even modern science recognizes 'em', electromagnetic radiation energy as having momentum).
@girv984 жыл бұрын
@@charlesbrightman4237 the cosmic web is not between galaxies, it IS the galaxies (and gas etc)
@charlesbrightman42374 жыл бұрын
@@girv98 The cosmic web also goes between the galaxies. (Reference SuspiciousObservers KZfaq channel).
@Rhannmah4 жыл бұрын
Many processes can lead to matter existing between galaxies; for example, ejected material from a galaxy as explained at 5:28 , or extremely active galactic nucleus like quasars which fling jets outwards longer than the galaxy itself, galactic collisions, etc. Might even be matter that never condensed into a galaxy proper.
@antonystringfellow51524 жыл бұрын
Ok, here is the actual answer.... The filaments consist mainly of dark matter. Dark matter, like the matter we are made of (baryonic matter), has mass but interacts very weakly (if at all) with ordinary matter. It is responsible for the formation of galaxies as its mass far exceeds that of ordinary matter. Unlike ordinary matter, it can't interact with itself much either so, it can't clump together by physical contact to form lumps the way ordinary matter does as it forms stars and planets. Instead, it is only held in place by gravity - basically, it's all pretty loose. I hope that helps to answer your question.
@weatherseed89944 жыл бұрын
Young, hot stars are in your galaxy!
@Yayainspace4 жыл бұрын
I love it 😻 amazing work Becky , with love from Texas , USA 🇺🇸
@sofiedahlbacka5114 жыл бұрын
Galaxies, probably: "the universe is conspiring against us" 🤣 This was, once again, really informative and interesting to listen to! :)
@TheBookDoctor4 жыл бұрын
Upvote for LaTeX formatting. I graduated, uh... 25 years ago, and it's kind of nice to see that some things never change. :)
@brianhester19964 жыл бұрын
Well, of course your thesis is blue... It's hot and it's new...ish. It's lovely that your thesis is interesting and explainable. Well done, Dr Becky!
@konsamtambradhwaja38704 жыл бұрын
Thank you so much for your excellent works,I appreciate your effort on " The influence of morphology, AGN & environment on the quenching histories of galaxies."
@johnfolland39974 жыл бұрын
Hi Dr Becky, Really enjoying your Vlogs and now up to date. Question for you. Could there of been a "Universe" before the Big Bang, Made up of say the Dark Energy/Matter. Then the Big Bang happened inside it and is expanding within it ???
@kayinoue24973 жыл бұрын
Still can't believe you named your code suite "STARPY" as a Mario reference. Who said scientists aren't the most wholesome af nerds. Your thesis is VERY cool. I will definitely have to give it a look when I'm further along in my education in physics.
@stuartbrownlee31084 жыл бұрын
Dr Becky, thank you once again for your excellent work...and also, thank you for including the link so that I can now order your book. Speaking of the rate of star formation in galaxies, I do seem to recall reading some years ago now about how this rate has diminished in our own galaxy...something like, the lights have been going out these past 4 billion years or so...I'm not too worried about the inevitable post-stellar era and so forth - personally, I think the anthropic principle, m-brane theory etc is more likely to give faith to some kind of - something - sentience somehow, some wherewhen. Incidentally, I am currently re-reading Greg Bear's "Eon", which is a fascinating tale of what can go wrong when you create a superspacial tapeworm that a) brings you back to a similar universe whereby a similar unpleasant history is sort of revisited and b) in the sequel "Eternity", an avatar of "gods" from the ends of universes complain that this same tapeworm makes it difficult for universes to die with dignity.
@zippy4star4 жыл бұрын
"The grss is always redder on the other side"! - Brilliant.
@jennmartia93094 жыл бұрын
Correction: the gas is always redder on the other side.
@zippy4star4 жыл бұрын
@@jennmartia9309 Look, my fingers know what they've typed. If they chose to say grss, who are we to judge?
@zippy4star4 жыл бұрын
@pink hot acid boots exactly.
@Scynthius1374 жыл бұрын
I thought she said "The graph is always redder on the other side."
@justincredible6664 жыл бұрын
This was such an uplifting video and super interesting . Cheers becky 😀
@NZC_Meow3 жыл бұрын
I'll read the thesis one year after this video came out because I finally made enough spare money to print the pages because it hurts my eyes to read from the phone. Yay I'm very excited
@PCbassist3 жыл бұрын
This was really interesting. Thanks for explaining in a way that the masses could follow. Great video!
@tomcastonguay28474 жыл бұрын
Very nice it was a great day when you tube put you in my in box. You feed my nead for knowledge of this suject. I'm a bit old maybe to start learning this amazing fun stuff. I'm 64 at this time but I want more this is great fun. Peace love & stardust. TomCat
@hunterG60k4 жыл бұрын
Hi Becky! Have you heard about the paper Lior Shamil presented to the American Astronomical Society about the distribution of galaxy spin direction throughout the universe?? If so what are your thoughts? P.S. Love the videos :)
@RWBHere3 жыл бұрын
42 years later, and I still haven't re-read my thesis. Thanks for sharing yours with us. I'm sure that there is a wealth more of interesting information between its covers. 🖖 🙂 👍
@zippidydoodah20244 жыл бұрын
I already bought and read Space - 10 Things, and thought it was excellent. Well written and well pitched at universe-wonderers who faint at the sight of mathematics.
@DrBecky4 жыл бұрын
Thanks 🤗
@Anna-hn7ph4 жыл бұрын
I really love your videos! Thank you so much! Would it be possible to do one about the formation (and evolution) of stars? :D
@JeffJackowski4 жыл бұрын
Oh no! Dr. Becky's addition to human knowledge gave our set of knowledge a wart! (12:35)
@gbail95664 жыл бұрын
I can't wait too get your book if it contains just half the passion you show about your thesis then it's a page turner!
@SiqueScarface4 жыл бұрын
One example you brought up were those two galaxies colliding. If I (with my rather limited understanding of Astrophysics) try to imagine that, I would assume that the stars of the two galaxies pass each other nearly undisturbed as the average distance between two stars in a galaxy like ours is quite large. On the other hand, all that gas and debris floating in interstellar space between the stars (including planets far away from their respective stars) would strongly interact with each other and heat up, being pulled out of their host galaxies and forming a large, radiating cloud between the two galaxies. Something similar would happen to the Dark Matter in both galaxies. It can't heat up though, as it doesn't interact with "heat" (infrared electromagnetic radiation), but as the supposed particles of Dark Matter pass each other much closer than the stars, they will interact much more strongly, thus pulling out the Dark Matter from both galaxies. So I imagine a sandwich like structure somewhat after the collision: One (deformed) galaxy stripped from gas and planets, then a layer of Dark Matter pulled out of that galaxy, then the hot cloud containing all that gas, debris and planets of both galaxies, then another layer of Dark Matter from the second galaxy, and finally the second galaxy itself, stripped of gas and planets too. So then we would have two quenched galaxies with no means left to start new star formations, as their proto stellar material is now floating between them. Am I getting this right?
@timbeaton50454 жыл бұрын
I think we should have STARPY t-shirts available! In the wise words of a (very) minor character in Robocop..."I'd buy that for a dollar!" OK,i guess that would be more than a dollar....
@timbeaton50454 жыл бұрын
I am looking forward to updates from Future Becky as the story of galaxy quenching, and the fate of galaxies as a whole becomes more detailed, and involved. Thanks for sharing this with us, a fascinating glimpse into the world of professional astronomy.
@timbeaton50454 жыл бұрын
PPS You could have also quoted Gildor Inglorion's greeting to the Hobbits..." "Elen síla lúmenn’ omentielvo" (literally "A Star shines on the hour of our meeting")
@craigdelaney87374 жыл бұрын
😳😮Haha! Thank you for the support.😊 And you, and your Work Matters as well. Keep up the good work! 👌
@pinkdispatcher4 жыл бұрын
Thanks, that was quite interesting again. I've read bits and pieces of it, and of course looked at the thanks and dedications and quotes :) Was it a requirement to have it printed single-sided? There was no such requirement at my university. A career at the university as a post-doc would have been nice, but I only ever got silly short-term contracts, so I ended up in the industry, and I still enjoy it.
@tidharcrimow32724 жыл бұрын
Greetings from Israel, I'm 14 and you are the reason I want to be an Scientist. But I have one question, those jets that come out of the black hole... They're just pushed out by the disk or... What is actually happening there?
@DrBecky4 жыл бұрын
👋 that’s one thing we’re not completely sure about yet. It’s thought to be down to the interaction of the particles in the accretion disc and the magnetic field around the black hole but it’s poorly understood
@USDAselect4 жыл бұрын
Awesome Becks. That was a great sting in the tail ✊🏿.
@sapelesteve4 жыл бұрын
Great video Dr. Becky! Loved reading your book. However, I am still trying to figure out how I can get you to sign it for me? Kinda like trying to find a Black Hole using an old pair of binoculars to view the sky........ 😂😂😂😂😁😁😁😁
@kazabubu103 жыл бұрын
Correct me if I am wrong or if I misunderstood you @7:30 (I am a bit rusty on the topic...:P), but I don't thing a merger (especially those with mass ratios >1:10) could quench SF without AGN feedback. In a wet merger scenario you expect gas to be driven to the center, triggering (intense) nuclear star formation (that is thought to evolve in the extra-light component in the earlier-type remnant) and rapid SMBH growth. I think that this should produce a spike in (nuclear) SFH followed by quenching once the AGN's output energy is coupled to the nuclear gas, warm it up and prevent further collapse and stop or limit SMBH growth. All that provided the SMBH remains at the center and doesn't recoil, which is expected to prolong SF and produce undermassive SMBHs (but thats a different rabbit hole). Am I missing something?
@themeatpopsicle4 жыл бұрын
I am stoked to have your book and I am stoked to attempt to read your thesis.
@DrBecky4 жыл бұрын
Hope you enjoy the book! 🤗
@coweatsman4 жыл бұрын
Blue is swift, exciting, dangerous, creative and short lived. Red is boring, cautious, safe and so long lived that it's almost death itself.
@outside83124 жыл бұрын
I will never be this smart
@timbeaton50454 жыл бұрын
Join the club, my friend....join the club!
@nul1fe4 жыл бұрын
never!
@kenhelmers26033 жыл бұрын
Thank you for sharing your thesis in this manner!
@RackBaLLZ4 жыл бұрын
Dr.Becky could you explain what an Einstein Ring is? I just saw an article talking about how rare they are but no real explanation about what they are or how/why they exist or why they're significant. Thanks
@DrBecky4 жыл бұрын
Ever held up a stemmed wine glass in front of a light or a candle and been able to make a circle of light in the glass base? Same principle for an Einstein ring, except the candle is a background galaxy and the wine glass is a huge cluster of galaxies that’s very massive. The cluster bends the light from the background galaxy - and if they’re lined up just right from our perspective on Earth the light from the background galaxy is bent into a ring. It’s rare because that perfect line up doesn’t happen often and instead we get arcs and half rings
@RackBaLLZ4 жыл бұрын
@@DrBecky so is it like bending space time? The article said the rarest ones they were talking about has to do with them being around black holes.
@davidcyrilbrown4 жыл бұрын
Thanks for you channel, I've always been interested in this subject. I've just bought your audio book.
@8BitThoughts4 жыл бұрын
I had no idea how much work goes into a PhD thesis. It kind of feels like there's 5 and maybe 6 different academic articles worth of work in here. It's mind boggling.
@DrBecky4 жыл бұрын
Yep! It’s a lot - that’s why people say don’t do a PhD if you’re not really passionate about a topic
@armyofshea79414 жыл бұрын
Got your book, and I’m letting my son read it first. Can’t wait for him to finish. Given your passion for galaxies, do you find yourself inadvertently assigning qualities of galaxies to your friends and co-workers personalities?
@donstamps4 жыл бұрын
I just ordered your book from Amazon here in the States. Looking forward to receiving it soon. Cheers!
@C.Chandler_May4 жыл бұрын
Throughly enjoy your Channel Dr. B.
@neutronium95424 жыл бұрын
Just bought your book. I've been waiting for it to be available in the US.
@e.m95014 жыл бұрын
Luv ur work becky truly
@Reedstilt3 жыл бұрын
I'm a little late to the party on this one, but I've got a question. Has there a been any studies that look at red vs. blue (vs. green) galaxies as a function of distance/time? Since we see nearby galaxies as they are more recently and more distant galaxies as they were further back in time, I'd be curious to see we see more red galaxies near us than further away, since they'll have had more time since the Big Bang to become quenched. Of course, since our Local Void seems rather sparsely populated, that might throw things off if the galactic environment has more to do with quenching than internal factors.
@Scribe130134 жыл бұрын
That's pretty much in line with my research
@jimmelnyk75064 жыл бұрын
Hello Becky - Thanks for your answer about the size of the singularity. Now you have gotten me hooked on these black holes. One more set of questions, at least for now. What is the size relationship between the singularity and the event horizon? In the example you gave, with a singularity of 6 Km, what is the diameter of the event horizon? If the diameter of the singularity changes, I assume its mass changes by the cube of the diameter. How does the diameter of the event horizon change?
@ritangshugiri72804 жыл бұрын
Wonderful work, Dr Becky!!!!!!!
@andyireland19684 жыл бұрын
Thanks Dr Bekky for an interesting view on physics. Most are boring.
@jennaozzy68633 жыл бұрын
Just grabbed her book on Audible! It's there if anyone happens to look at comments wondering
@sakuraflora34 жыл бұрын
Can't wait to start my PhD journey during the upcoming fall months :)
@DrBecky4 жыл бұрын
All the best for it! 🤗
@garryaydon33094 жыл бұрын
Why did the US Edition of your book get illustrations? Oh, I have purchased both editions.
@Scramjet444 жыл бұрын
Just bought a copy ofyour book, looking forward to reading it.
@adnanm.elghamji45474 жыл бұрын
" my thesis is blue BABade babada My thesis is blue BABade babada.....great job
@jackkohler13924 жыл бұрын
Just a stupid question-Do the densities of black holes vary according to size or age? Just curious.
@gregorydamario57734 жыл бұрын
OMG or Yabba Dabba Doo or something. You kinda sorta resolved a problem I had with the basic premise of star formation. My consternation has long been, how do you get the lightest element in the universe to collect to the density where it will fuse because before that event, the gas would heat up and expand, thus preventing fusion. COLD gas is nice but I am still consternated. I can understand in my non-PHD education and mind (heck, I am not even a science major) that in a post multiple supernovae universe, there would be clouds with iron and heavier element, even including trans-uranium ones, formed that would allow for those denser clouds of dirty hydrogen to be available for compression into star/planetary system formations when nearby supernovae shock waves passed through them, BUT how did the first stars form in a universe with no heavy dust clouds or super novae shock waves to compress the hydrogen? Cold hydrogen and dirt works now but what about earlier? OK, sorry. Until you tell me why I am wrong, I have to withdraw the Yabba Dabba Doo. I painted myself into a corner.
@retired43654 жыл бұрын
Book bought, thank you Dr. Becky. ✌️🥰
@seriousmaran94144 жыл бұрын
Already got a copy of Space 10 Things You Should Know. Was discounted on Amazon in the UK :p
@nikitasikdar2544 жыл бұрын
Love your work !😊
@airmakay19614 жыл бұрын
My copy of "Space at the Speed of Light" arrived yesterday! I also have a copy of "10 Things You Should Know," which I enjoyed very much. Does a copy of the Smethurst Thesis belong in my library? As fine a book as I am sure it is, probably not as I am not a stalker and I am certain it is WAY over my head. But have learned from your video summary of it. Your channel goes a long way in maintaining my enthusiasm for astronomy and particularly the mechanisms that make it all work.
@DrBecky4 жыл бұрын
Hope you enjoy the book!
@michaelsommers23564 жыл бұрын
You can download it: ora.ox.ac.uk/objects/uuid:c7023345-ec69-42c3-907e-32c12a9ee115
@TheKamilkrawczak4 жыл бұрын
You're fantastic! Beautiful voice.
@redfishervictoria4 жыл бұрын
The speed of light is the rate of induction of a specific frequency in a specific medium.
@gooblord90064 жыл бұрын
frequency? What specific frequency? How does that change the speed? Last I checked infrared and xrays travel at the same speed and are VERY different frequencies. The medium it travels through kind of effects the time it takes to get from a to b, but it doesn't actually change the speed light travels. So, that statement is completely wrong. The speed of light is the speed of information in the universe and it is constant
@redfishervictoria4 жыл бұрын
Gooblord in a vacuum light travels at X speed. When that same light travels through water, for instance, it slows down. When that same light exits the water and back into the vacuum it immediately resumes its initial speed, the speed of light in a vacuum. Notice that no energy was added to get the light to resume its speed. Nor was there any energy lost when it was in water. The mediums are a vacuum and water. The difference of these two mediums is density. The vacuum has ‘zero’ density as it contains no matter that interacts with light. Whereas water is in liquid form therefor dense. Glass could be used as a medium or any other medium which allows light through. The difference in medium densities will only affect the length of time differing frequencies of light pass through that medium. This is seen when white light travels through a prism. Blue light for instance takes longer to travel through the prism as its frequency is greater than red light. Blue therefor has more interactions with the particles of matter in the prism than red. We see this also as blue and red shifts in cosmology. More or less as refraction. Rate of inductance of a medium can therefor be calculated by using each frequency of light. All energy is a frequency and its corresponding amplitude. There is no difference from a radio ‘wave’ vs a light ‘wave’ other than their individual frequencies. Radio waves travel in a vacuum at the same rate as light waves. The difference between them is the permissibility and permeability of the medium they are interacting with. For instance radio waves can travel through a regular house wall whereas the light will be absorbed. The only difference is their frequencies of which the permeability of the walls will allow passage. The speed of light is only ‘constant’ in a perfect vacuum. Its speed, rate of induction, through other mediums is dependent of that medium. Here is a brain twister for you. In a perfect vacuum what is light travelling through, in, or....?
@KentonBenfield4 жыл бұрын
My understanding was that light is traveling slower in a particle filled medium (water, glass, gas etc) due to a great many discrete events where the photon is absorbed (obliterated) and reemitted (generated) by each atom/particle it interacts with; the delay between absorption and emittance adds up to cause an overall slower light propagation. But, between each event, those photons are always traveling at exactly 'c'.
@doobydoo884 жыл бұрын
You can tell how proud you are of your PHD an rightly so it's because of people like you why we are not still living in a cave, so interesting
@eugenemartone70234 жыл бұрын
In part one, and here I see lots of people asking if she accounted for redshift. She has a Dr. in front of her name, what do you think? For the record, the answer is: Yes, but there’s no need to correct for it because the galaxies in question are too close for it to be significant.
@abbas18724 жыл бұрын
Yeah sound impressive but, did you show your working out in the margins? lol
@timbeaton50454 жыл бұрын
I would have done, myself, but this margin is too small to contain it.
@elizakube9624 жыл бұрын
Hi Becky, could you please do a video about forces, vectors, friction and stuff like that? 😁
@UpcycleElectronics4 жыл бұрын
The only part that I'm having trouble with is the idea that the gas is "stripped" with some kind of finality. On what time scale? Ultimately, isn't it still bound to the gravity of the region, filament, and originator? If the assessment scale is from now until the heat death of the universe, isn't the gas going to radiate away its heat eventually, Return to Go, and collect it's $200? I mean where is it going? It's energy appears to dissipate with great distances, but still within the galactic region. Is the returning envelope of material fueling the galactic plane structure?
@Rayowag4 жыл бұрын
You wanna tell me you wrote a thesis on galaxies and there isn't a "In a galaxy far, far away..." in there? I'm shocked!
@mariannant.78534 жыл бұрын
Hello, im from Greece ,I've been watching your videos for months and I want to ask, do you know any good Universities for Astrophysics studies? ...❤❤
@billwheeler72434 жыл бұрын
can you do a video on La Grange points and how some scientists feel that these points can be used to achive a faster space travel by using these point...thanks for considering this
@billwheeler72434 жыл бұрын
@trololospaghetto as i understand La Grange points ... they are like a resting point where the effects of planetary are nulified... meaning the gravity pull of 2 or more bodies are cancelled out
@billwheeler72434 жыл бұрын
i may have miss typed lagrainge wrong... but i am 70% blind from years of welding.... most of my space education has been by automated readers... as i cant see the typed words like most people.... best i can describe my eyesight is for others to look through a lace doylie... my brain does its best to put the missing parts together as best it can... gravity may be the wrong word... influence would be better suited
@billwheeler72434 жыл бұрын
@trololospaghetto all be kewl... takes more then my misspelling to egg me on... most times i type all caps... but my friend is typing for me so i dont need all caps to see what is typed... keep smiling...life is too short to be a angry man
@kevinwilson12284 жыл бұрын
YOU are simply so refreshing in evert way possiblr