Neutron Stars: Crash Course Astronomy #32

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  • Опубликовано: 27 авг 2024

Комментарии • 2,1 тыс.

  • @xikes
    @xikes 9 лет назад +155

    "As far as it's concerned, normal matter is slightly polluted vacuum.""
    Best line ever.

    • @absolutelysobeast
      @absolutelysobeast 4 года назад +4

      Xikes Emi yeah it is, i heard him say it but i thought he was talking about the neutron material. Man what a heavy statement. Basically everything is insignificant to a neutron star

  • @ruzzyshuya4832
    @ruzzyshuya4832 8 лет назад +141

    Goals in life: to be as excited and enthusiastic about most things as Phil is about astronomy

  • @deawinter
    @deawinter 8 лет назад +225

    Saying a neutron star's magnetic field reacts "poorly" to starquakes might win for best understatement of the year

  • @AnkaaAvarshina
    @AnkaaAvarshina 8 лет назад +788

    Can we just discuss how effing cool the name "magnetar" is?

    • @deathquest03
      @deathquest03 8 лет назад +63

      +Sapphire Shard Sounds like a pokemon.

    • @TheAmazingBlitzo
      @TheAmazingBlitzo 6 лет назад +7

      deathquest03 guessing that’s why I see Pokémon references everywhere

    • @habkenubai8200
      @habkenubai8200 5 лет назад +17

      The microwave uaed to be called the magnetron. Sounds like a transformer.

    • @gammkrab
      @gammkrab 5 лет назад

      hgah! here we call i magnetron kinda

    • @habkenubai8200
      @habkenubai8200 5 лет назад

      @@gammkrab where's that?

  • @garethdean6382
    @garethdean6382 9 лет назад +2450

    I had trouble understanding this video, the material was a little dense.

    • @cablecar10
      @cablecar10 9 лет назад +57

      +Gareth Dean Ayyyyyyy

    • @joekennedy4093
      @joekennedy4093 9 лет назад +52

      +Gareth Dean ba-dum tish

    • @verdiss7487
      @verdiss7487 9 лет назад +2

      +Gareth Dean WHY ARE YOU FOLLOWING ME?!

    • @agustinvenegas5238
      @agustinvenegas5238 9 лет назад +2

      Verdiss i just want to be popular....

    • @frankschneider6156
      @frankschneider6156 9 лет назад +13

      +Gareth Dean
      Hint: You can watch a video more than once, if it's too fast for you.

  • @drink15
    @drink15 9 лет назад +490

    Neutron stars are very attractive.

    • @SV67943
      @SV67943 9 лет назад +21

      +drink15 Is that supposed to be some kind of gravity pun?

    • @ThieflyChap
      @ThieflyChap 9 лет назад +14

      +drink15 I see what you did there. ;D

    • @assbread5950
      @assbread5950 9 лет назад +10

      +drink15 id bang.

    • @wout4yt
      @wout4yt 9 лет назад +29

      +drink15 eh neutron stars are nice and all, but once you go black, you never go back..

    • @gabriel83571
      @gabriel83571 8 лет назад +1

      +drink15 Nice :D

  • @theultimatereductionist7592
    @theultimatereductionist7592 5 лет назад +601

    3:32 "Neutron starts are RIDICULOUSLY dense." Still not as dense as flat-earthers.

    • @docholiday8029
      @docholiday8029 5 лет назад +13

      Lol!
      Great pun!

    • @codytisdale9064
      @codytisdale9064 5 лет назад +10

      The most appropriate pun👌

    • @luthermcgee432
      @luthermcgee432 5 лет назад +5

      Thank you. I'm not going to even
      Say how dense they can be.

    • @LegionProxyMaster
      @LegionProxyMaster 5 лет назад +1

      You are a heretic for believing the earth is round! The universe revolves around earth!
      This is how you sound.

    • @Curly4000
      @Curly4000 5 лет назад +3

      You’re the select few that believe the earth is round. Literally everyone I know knows that the earth is flat. There’s too much evidence to support the earth being flat

  • @ExpedienteGonk
    @ExpedienteGonk 4 года назад +60

    Phil is the teacher I would love to have had. I can't count how many times I have watched this video with his enthusiastic speech.

  • @Spaceman647
    @Spaceman647 9 лет назад +38

    Phil,
    Neutron stars are my #1 favorite objects in space and I've been fascinated by them for years. Kurzgesagt's video on Neutron Stars was one of the most important and informative I had seen in a long time, but I had been eagerly awaiting your CrashCourse video on them because I knew you would be capable of explaining their properties in such an excellent way.
    Not only did you deliver on Neutron Stars, you also touched on Pulsars and Magnetars. I'm floored. I've watched this video something like four times already. I'm grinning like an idiot over it, because these objects are so unbelievably fascinating and you've done such a good job.
    Thank you. Thank you!!

  • @NikolajLepka
    @NikolajLepka 9 лет назад +135

    Neutron stars have always been my favourite celestial objects. And for good reason, they're absolutely insane

    • @MadnerKami
      @MadnerKami 9 лет назад +12

      +Nikolaj Lepka What psychological education are you basing this off? Do Neutron Stars even have minds?

    • @NikolajLepka
      @NikolajLepka 9 лет назад +7

      MadnerKami I knew someone would pose this question eventually
      My statement was figurative, not literal, as I'm sure you're aware

    • @BrettCWX
      @BrettCWX 9 лет назад +4

      +MadnerKami I laughed way too hard at this.

    • @SirNeutral
      @SirNeutral 9 лет назад +4

      +Nikolaj Lepka There should be a neutron star named Pinky.

    • @tallahassZ
      @tallahassZ 9 лет назад

      +Nikolaj Lepka insane in the sense they defy the Standard model.

  • @AbdullMohommedlol
    @AbdullMohommedlol 8 лет назад +296

    "that's halfway across the galaxy"
    goddamn, magnetars are just overpowered

    • @huemanyeet5608
      @huemanyeet5608 6 лет назад +29

      Top ten overpowerd space objets

    • @death_parade
      @death_parade 5 лет назад +16

      Magnetar 2OP Plz nerf.

    • @StaK_1980
      @StaK_1980 5 лет назад +5

      Top 1 OP, even more dangerous than black holes

    • @jace_Henderson
      @jace_Henderson 5 лет назад +5

      A gmail I mean, they can wipe the information on a credit card and suck the iron out of your blood from thousands of miles away. Sounds like somebody gave an MRI that electric VTECH.

    • @jace_Henderson
      @jace_Henderson 5 лет назад +2

      Rajat Chatterjee really? Last time I checked Gamma ray bursts came nowhere close to a quasar.

  • @MrMurgrona
    @MrMurgrona 9 лет назад +36

    This is by far the best CC running right now, Phil is a wonderful teacher! :)

  • @EugeneKhutoryansky
    @EugeneKhutoryansky 9 лет назад +268

    Excellent video. It is also worth mentioning that the magnetic field of a neutron is due to the magnetic fields of the quarks that comprise the neutron. If the neutron were an elementary particle, it would not be able to have a magnetic field due to the fact that it has a net electric charge of zero.

    • @MrRishi_YT
      @MrRishi_YT 6 лет назад +4

      Physics Videos by Eugene Khutoryansky that you, i was very confused about why they had one

    • @mr.blueeyes5035
      @mr.blueeyes5035 6 лет назад +2

      Physics Videos by Eugene Khutoryansky. WHAT?

    • @denysvlasenko4952
      @denysvlasenko4952 6 лет назад +4

      No.
      Magnetic field is due to the remaining protons and electrons (about 1% of the matter in NS), and the convective movement of its matter in the first seconds after its creation.

    • @timppaUT
      @timppaUT 6 лет назад

      What electric charge of neutron has anything to do with it magnetism? Carrier of magnetism (and electricity) is photon. Photons charge is exactly same (neutral) as neutron has. And also photon haven't got even a mass. But still it affects on magnetism. Right?

    • @dougrogan379
      @dougrogan379 6 лет назад +7

      engosama design why did allah wait so long to make his creations enlightened? He could have done it on the day of creation, no? Think about that.

  • @yousof77
    @yousof77 9 лет назад +663

    I can't wait for the black hole episode if it is coming!

    • @crashcourse
      @crashcourse  9 лет назад +121

      +Senses Gaming Next week!

    • @yousof77
      @yousof77 9 лет назад +8

      +CrashCourse Looking forward to it, i simply can't wait!

    • @cristianelizondo8575
      @cristianelizondo8575 9 лет назад +6

      +CrashCourse aw hell yeah

    • @paulmanly1990
      @paulmanly1990 9 лет назад

      +cristian elizondo HAIL YAH MY FAV ASTROPHYSICS OBJECT!!!

    • @WrathOfMega
      @WrathOfMega 9 лет назад +3

      +CrashCourse will you talk about on white holes? I know they're still sort of hypothetical, but I really like it when people touch on the really weird stuff.

  • @pipertye2882
    @pipertye2882 8 лет назад +388

    Magnetar, I choose you! 😂

    • @DroidDoughnut
      @DroidDoughnut 6 лет назад +4

      loooool😂😂😂

    • @mr.blueeyes5035
      @mr.blueeyes5035 6 лет назад +7

      Lol Pokémon got catch them all no matter how far in space they are 😛

    • @coweatsman
      @coweatsman 6 лет назад +3

      Magetar - God's super weapon.

    • @pathos1016
      @pathos1016 5 лет назад +3

      Piper Tye
      Magnetar used Starquake against the Milky Way. It was super effective!

    • @ScareSans
      @ScareSans 5 лет назад +1

      Magnetar used Magnetar Flare! it's super effective! Sattelite was stunned! Scientist was confused!

  • @dIRECTOR259
    @dIRECTOR259 8 лет назад +686

    I drive my car at "a fraction of the speed of light".

    • @dIRECTOR259
      @dIRECTOR259 8 лет назад +9

      Hmm.. In vacuum or in atmosphere?

    • @pnp072000
      @pnp072000 8 лет назад +9

      +dIRECT0R The speed of light is 300,000km/s. We measure speed in America by mph. I'm too lazy to do the calculations, but it's not 7mph.

    • @dIRECTOR259
      @dIRECTOR259 8 лет назад +14

      671 mph. He's off by one zero...

    • @66lesjo
      @66lesjo 7 лет назад +7

      pnp072000 186,000 miles per second my friend.

    • @bitingmantasssnoneuplodds1487
      @bitingmantasssnoneuplodds1487 7 лет назад

      dIRECT0R xd

  • @SerhiiMartyneko
    @SerhiiMartyneko 4 года назад +18

    2:50 "You're mostly empty space"
    This escalated quickly.

  • @elitearbor
    @elitearbor 9 лет назад +41

    Magnetars are terrifying. Wow.
    Also, thanks for clearing up some misconceptions I had held for ages. Neutron stars, depending on how they behave, are themselves pulsars and magnetars. I thought all three of these objects were different things!

  • @gamer_kid_naz4942
    @gamer_kid_naz4942 7 лет назад +256

    2:43 "small city" uses New York as an example

    • @moazeldefrawy4379
      @moazeldefrawy4379 7 лет назад +6

      couldn't get worse. XD

    • @Killuminati23
      @Killuminati23 7 лет назад +12

      XD americans really "think big"
      for me (germany) a small city has under 10.000 people o_0

    • @allenqueen
      @allenqueen 6 лет назад +28

      he didn't use the whole of New York.If you look closely,you will see a circle over the Manhattan region.So saying a small city and giving an example of a small circle over a part of New York isn't wrong

    • @rollingkneebar3534
      @rollingkneebar3534 6 лет назад +20

      Every comparison I hear for a neutron star uses Manhattan specifically as the size analogue, and Manhattan is actually pretty small...

    • @JuanNunez-dt1fn
      @JuanNunez-dt1fn 6 лет назад

      Andrew Dornan Auschwitz is in Poland

  • @jordanhyde2752
    @jordanhyde2752 5 лет назад +79

    Hence a saying, “the more you know, the more you don’t know”

  • @breindigob
    @breindigob 8 лет назад +11

    I just love the little Phil cartoon character in the intro, the little smile is too cute. So happy. I EXTREMELY love these videos.

  • @ariasariasarias
    @ariasariasarias 9 лет назад +24

    I DIED laughing when he said "I'm not saying aliens" and a cartoon version of you know who showed up in the lower right corner haha, the BURN.

  • @keerthanasharma4831
    @keerthanasharma4831 8 лет назад +4

    The crash course astronomy series is by far the best cc series they've made so far. Great job Phil!

  • @CezarMS1
    @CezarMS1 8 лет назад +10

    Wow! I have a HUGE braingasm with every astronomy episode! You're the friggin' best Phil!

  • @MrDylan2125
    @MrDylan2125 9 лет назад +4

    Magnetar. Sounds like the deadliest Pokemon ever. Also has some mind numbing numbers attached to it. Very awe inspiring.

  • @GammaCruxis
    @GammaCruxis 9 лет назад +184

    Is it wrong to squeal a little bit when I see this in my sub list? XD

    • @bryanwan6169
      @bryanwan6169 9 лет назад +8

      +GammaCruxis no
      :P

    • @elendiastarman
      @elendiastarman 9 лет назад +8

      +GammaCruxis Not at all. I squealed a bit too, and I'm a 23-year-old straight male.

    • @user-vb4fs6wb4s
      @user-vb4fs6wb4s 9 лет назад +2

      i jump in the air and raise my hands

    • @ValleysOfRain
      @ValleysOfRain 9 лет назад +1

      +GammaCruxis CrashCourse Astronomy uploads are one of my favourite things in the week. I really do look forward to them.

    • @gerardobarbosa5171
      @gerardobarbosa5171 9 лет назад +8

      +GammaCruxis I actually once even pulled off to the side of the road to watch it

  • @BastiSitoLP
    @BastiSitoLP 9 лет назад +8

    As a science guy, I LOVE your show and the summary at the end. Greetings from Germany.

  • @rajeevk.pathak771
    @rajeevk.pathak771 4 года назад +1

    Dr. Phil Plait, you are amazing! Your elucidations on the cosmos--- stellar structure, birth and death of stars, black holes, neutron stars,
    magnetars, planets, nebulae...and myriads of such phenomena are simply stupendous and convincing!
    It is so gratifying to listen to your discourses! It is a treat...you literally 'tune-in' with the diversified audience globally!
    We so look forward to getting enlightened by your enthusiastic and crystal-clear presentations!

  • @shiminshamim8359
    @shiminshamim8359 9 лет назад +42

    You know you love astronomy and crashcourse and this series that you stop comforting a friend just to watch this video 😂

    • @AkwardCheeseIsAkward
      @AkwardCheeseIsAkward 9 лет назад +11

      +Shimin Shamim The video will still be here.

    • @heyweirdoful
      @heyweirdoful 9 лет назад +11

      +AwkwardCheeseIsAwkward and his friend may not

    • @shiminshamim8359
      @shiminshamim8359 9 лет назад

      AwkwardCheeseIsAwkward​ Junaid Mohsin​ she couldn't go to an open event and she isn't even upset. If It was something serious my friends would he my first priority by a long mile. And I'm a girl.

    • @Fr00stee
      @Fr00stee 9 лет назад +2

      What exactly do you mean by "comforting"

    • @shiminshamim8359
      @shiminshamim8359 9 лет назад

      DiamondKnightHD telling her that there are other chances of going to the school and she shouldn't be upset just because she lost one of the chances.

  • @RepublicOfPlay
    @RepublicOfPlay 9 лет назад +9

    That was a fantastic episode! I've been feeling a little lost with the last couple, but I understand it much better now. Never heard of Magnetars before, they sound absolutely insane.

  • @JohnCF
    @JohnCF 7 лет назад +101

    That energy burst from the magnetar must have destroyed all life around that part of our galaxy, 50 thousand years ago! :(

    • @jamesfrench7299
      @jamesfrench7299 5 лет назад +3

      John C F good thing magnetars are so rare then.

    • @A4ANT
      @A4ANT 5 лет назад +5

      John C F - I believe so, I also think it’s what caused the earth to unalign from its axis and I believe it changed earths gravity.. large giant human bones, gigantic dinosaurs, massive flying lizards, gigantic marble blocks / the pyramids can only mean that things weighed less before ?

    • @peterjcr
      @peterjcr 5 лет назад +12

      @@A4ANT Although this happened 50 thousand years ago, the energy released reached us just recently. Unless you're referring to the possibility of a closer Magnetar much more long ago.

    • @stofsk
      @stofsk 5 лет назад +2

      I was wondering about this. If the effect it had on us at 50kly away was negligible, what effect would it have had had we been any closer? What effect would it have on planets much closer to it?

    • @joechip1232
      @joechip1232 5 лет назад +13

      @@A4ANT A magnetic pulse cannot change something's gravity... Also, all of those things can be easily explained with the Earth's gravity as it is. I'm not sure why you think otherwise...?

  • @stanb1543
    @stanb1543 Год назад +3

    Best explanation of density I have ever heard. Well done.

  • @dm_nimbus
    @dm_nimbus 9 лет назад +69

    Starquakes: Because single-digit Richter scale measurements are boring

  • @MitsukiDiablew
    @MitsukiDiablew 9 лет назад +7

    Man do I love this. Best CC ever, I don't want it to end >.

  • @Fix3rJ0e
    @Fix3rJ0e 5 лет назад +91

    "A neutron star has the surface gravity 100 billion times stronger than Earth's."
    Goku: Time to train!!

  • @alfonseanacrelico6828
    @alfonseanacrelico6828 Год назад +1

    I LOVE this series. I'm an avid watcher of "How the Universe Works" and I love Phil in that series. But here I've learned much more detail than the TV series. Phil's enthusiasm for astronomy and teaching is wonderful and very engaging. I happened upon these RUclips videos by accident, and I'm very glad I did!

  • @StevenEveral
    @StevenEveral 9 лет назад +182

    Neutronium!

    • @StevenEveral
      @StevenEveral 9 лет назад +11

      ***** Is that you, Charlie Sheen?

    • @DanThePropMan
      @DanThePropMan 9 лет назад

      +Steven Manning Wonderflonium!

    • @KrzysztofBob
      @KrzysztofBob 9 лет назад +2

      Isn't that the stuff what Thor's hammer is made of?

    • @agustinvenegas5238
      @agustinvenegas5238 9 лет назад +2

      Krzysztof Bobkowski nope, thor's hammer is made of a rare asgardian metal, and it was forged in a dying star, because marvel
      It's held down by basically magic when someone unworthy tries to grab it
      God i need to go out more...

    • @SinHurr
      @SinHurr 9 лет назад +3

      +agustin venegas Magic, or does it emit gravitons in equal but opposite force to the unworthy person trying to pick it up?

  • @HexerPsy
    @HexerPsy 9 лет назад +60

    I dont know man... Black holes sound pretty boring with the variety of neutron stars. Especially quakes on magnetars O_O

    • @SV67943
      @SV67943 9 лет назад +5

      +HexerPsy I don't know, super-massive black holes are pretty interesting, with masses million or billions times that of the sun.
      Plus, they do this: 2.bp.blogspot.com/_mOGZbOPkY1M/SMQiFFa3ESI/AAAAAAAAAD0/aWTsSegsxRE/s400/m87l2_s.jpg ; tse4.mm.bing.net/th?id=JN.K5GF4Fi26Rtfm1k%2f%2bkbB7g&pid=15.1 ; media-cache-ak0.pinimg.com/736x/2a/75/6a/2a756a53a8a578e711f8edefedad170e.jpg
      Enormous jets of radiation and particles that extend for millions of light-years, sometimes creating plumes far bigger than the host galaxy itself.

    • @HexerPsy
      @HexerPsy 9 лет назад +4

      SV67943
      You make a good point. So right back at you: you cant see the black holes... You always have secundairy things you detect them by. Neutron stars are at least visible :O
      Looking forward to the next episode though. Surely if he builds this much hype, at some point there needs to be a climax... But which episode will that be?!

    • @HexerPsy
      @HexerPsy 9 лет назад +8

      kkthxk idk, i dont really find that so depressing. Everything else here on earth basically works the same way: a car works wonderfully during its 'life time' and there are many varieties to see - but ultimately it breaks down and becomes a boring rusty skeleton.
      We live in an age, after several cycles of stars spilled their guts - which allows for interesting chemistry such as life.
      We can see incredibly far back into the past...
      You could even say we were born just a bit too early as the Andromeda galaxy will soon collide with ours. That should be amazing to see in the sky!
      As space expands, light from the distant past will become so cold and so much harder to detect that the other galaxies will remain dark, and their universe will be locked to one single galaxy.
      We are before this time, and lucky to sometimes even detect the light of the first galaxies in formation.
      While the end doesnt inspire much awe, our current situation is a very great one. Enough to look up and search the sky for more interesting things to see :)

    • @HexerPsy
      @HexerPsy 8 лет назад +3

      *****
      Hmmm.. thinking about it, its probably because on the outside black holes are pretty simple: Massive amounts of gravity. And when they interact with other matter, cool things happen.
      On the other side, neutron stars come in a few varieties with their own special features.
      Ah well.... as long as it all stays at a distance....... XD

    • @chaotixthefox
      @chaotixthefox 8 лет назад

      Two Neutron stars can combine to form a black hole. They can also form a Supermassive Neutron star.

  • @popcorn34987
    @popcorn34987 7 лет назад +1

    Stumbled upon the black hole episode in 10th grade and fell in love with astronomy. Over a year later, I'm about to graduate from high school a year early and go to school for astrophysics. So fun to go back and watch episodes on the subjects I've taught myself. Thank you for this series!!

  • @doraaaa0613
    @doraaaa0613 7 лет назад +35

    "when the Sun's magnetic field throws a tantrum.." lmao

  • @ethanyarberry9218
    @ethanyarberry9218 9 лет назад +15

    I wonder what that starquake did to nearby objects *shivers*

    • @naphackDT
      @naphackDT 7 лет назад +3

      All of the credit cards were wiped clean.

  • @warfjm
    @warfjm 9 лет назад +250

    If I'm mostly empty space, what does that make most politicians?

    • @matijasda
      @matijasda 9 лет назад +77

      +warfjm Fecal matter

    • @ameen4707
      @ameen4707 9 лет назад +6

      black hole ?

    • @kripposoft
      @kripposoft 9 лет назад +29

      +warfjm also empty space. They have to obey the same physical laws as you.

    • @MrCarltron
      @MrCarltron 9 лет назад +10

      +warfjm hot air

    • @mooinginpasture
      @mooinginpasture 9 лет назад +1

      +warfjm vacuous

  • @lgzz4885
    @lgzz4885 4 года назад +1

    Great vid man! Your ability to describe, explain, elaborate all while emoting in a positive format is a nice vibe to keep you watching & wanting to know more! your speech is very quick, I had to -10sec a few times lol to further understand what you said, but that’s prob on me bc I’m watching this right before I knock out. Melatonin release is in full stream! You guys earned a sub! Keep it upppp

  • @seanmortazyt
    @seanmortazyt 5 лет назад +1

    These are so well written and delivered!

  • @rubikfan1
    @rubikfan1 9 лет назад +41

    a few questions:
    can a neutron star die(like a star).
    can a neutron star become a blackhole if it get enough matter.
    is a blackhole not just a massive neutron star?
    what happens if 2 neutron stars colide?

    • @SangoProductions213
      @SangoProductions213 9 лет назад +4

      +rubikfan1 What *creates* a blackhole is nothing more than a massive version of what would *create* a neutron star. However, a blackhole is entirely different from a neutron. Where a neutron is an immensely packed set of iron atom cores, a blackhole's gravity become so great that it told the nuclear forces to go home, and crushed everything into essentially a single point.

    • @vinnyadamo9357
      @vinnyadamo9357 9 лет назад +6

      To an answer for the last question, look it up at NASA, they watched two neutron stars collide which made it so dense that it became a black hole, so yes a neutron star can become a black hole BUT a black hole is just an object that is so incredibly dense and massive that it creates on super dense point called a singularity that everything gets attracted to. A neutron star isn't really a star because it doesn't do nuclear fusion, if it did, then maybe it could die like a star.

    • @mage1over137
      @mage1over137 9 лет назад +12

      +rubikfan1
      A neutron star is basically already a dead star.
      Yes
      No
      and Boom

    • @SuperAngryPacman
      @SuperAngryPacman 9 лет назад +3

      +rubikfan1 In the event of a Neutron Star Collision, our LOVE WOULD BE FOREVER

    • @rizkyanuar
      @rizkyanuar 9 лет назад

      +rubikfan1 ya'll need to watch this watch?v=vNaEBbFbvcY

  • @CuppaGi
    @CuppaGi 9 лет назад +3

    It's like you spent the last 31 eps getting more and more excited and then BAM! NEUTRON STARS!

  • @murkalurk
    @murkalurk 8 лет назад +4

    Phil Plait is absolutely hilarious! I haven't laughed so hard during an educational video perhaps ever. Major props for making this even more entertaining than the material on it's own that's an essential talent.

  • @Krozra
    @Krozra Год назад

    That magnetar bit about our magnetic field being compressed was just fantastic. Chills!

  • @dead_machine5461
    @dead_machine5461 9 лет назад +7

    I was waiting for this episode for so much time!!! Thanks guys, awesome job like every other video :D

  • @Gwydda
    @Gwydda 9 лет назад +3

    I'd been waiting for this episode! Neutron stars are by far my favourite objects in the universe :)

  • @mastergx1
    @mastergx1 5 лет назад +9

    God I love astronomy. I know its a strange thing to say but neutron stars are my favourite astronomical phenomenon. The numbers are just mind boggling. They are the nut-jobs of the universe!

    • @darthjarjar5309
      @darthjarjar5309 5 лет назад

      mastergx1 Super Massive Black Hole: Hold my beer.

  • @z44k5
    @z44k5 4 года назад +1

    I LOVE this guy! The passion is highly contagious!

  • @LetsTakeWalk
    @LetsTakeWalk 9 лет назад +14

    Whelp, it's 00:30AM. Gotta go to bed.
    Let's see, if there is still something interresting on yout...NEUTRON STARS!

  • @headrockbeats
    @headrockbeats 9 лет назад +4

    Phil, I am rapidly running out of words to describe how awesome you are. Today I think I can afford to use "Incredotastic".

  • @jollebecrafts3602
    @jollebecrafts3602 6 лет назад +1

    Gotta love Phils passion he made the video so entertaining. Well done on such a mind boggling subject. How insignificant are we and our machines

  • @rbl4641
    @rbl4641 Год назад

    These things are absolutely, literally, mind boggling. Thanks

  • @deenapie
    @deenapie 9 лет назад +6

    This is crazy inspiring.

  • @potawatomi100
    @potawatomi100 5 лет назад +3

    You are absolutely brilliant, interesting, great speaker and highly knowledgeable.

  • @lancelefevre351
    @lancelefevre351 8 лет назад +1

    Just want all involved, and especially phill, to know my family loves your shows. It simple enough for young kids, yet informative enough to intrigue adults. Thank you all very much and keep brightening lives and the heavens with your efforts.

  • @DarkAngel71180
    @DarkAngel71180 7 лет назад

    These are by far the best astronomy videos I've ever seen. Things are explained so well I actually feel like I have a simple understanding of these concepts.

  • @gabrieljablonsky417
    @gabrieljablonsky417 9 лет назад +122

    I was searching
    You were on a mission
    Then our hearts combined like
    A neutron star collision...
    sorry

  • @Dysputant
    @Dysputant 9 лет назад +6

    So how many star civilisations died to this magnetar explosion ?

  • @TravisLawrence12
    @TravisLawrence12 5 лет назад +1

    This is my favorite episode of this series. "...Normal matter is a slightly polluted vacuum..." simply insane.

  • @robotaholic
    @robotaholic 4 года назад +1

    02:06 my favorite part of neutron star creation - I love just imagining this

  • @SidMajors
    @SidMajors 5 лет назад +3

    Still the best neutron star explanation video.

  • @BOBTHEBERT
    @BOBTHEBERT 9 лет назад +7

    Hold on a second... Magnetars? Call me crazy, but I think I figured out why IceFrog gave Magnus (The Magnataur) an ultimate called "Reverse Polarity" that pulls everyone in to him, even though it doesn't seem to fit with his theme at all (basically a centaur with a really rare horn).

  • @sahilsharma4406
    @sahilsharma4406 5 лет назад

    Am I the only one who thinks this guy explains any and everything so beautifully (not to mention passionately) that at certain points we were just watching the way he was explaining rather than paying any attention to what words was he throwing?

  • @Harlem1991
    @Harlem1991 5 лет назад

    Your course is one of my favorites on RUclips. You da great Joann should be very proud of yourself Phil!

  • @Joorum
    @Joorum 9 лет назад +11

    It's so dense, every single cubic centimeter has so many things going on.

    • @krarkman1
      @krarkman1 9 лет назад +6

      +Joorum It stylistically designed to be that way and you can't undo that but you can diminish the results of it.

    • @InsomniacOvrLrd
      @InsomniacOvrLrd 9 лет назад +2

      +Erick Nordquist something something pizza rolls something hack frauds.

    • @Onihikage
      @Onihikage 9 лет назад +1

      +Joorum What is it with Ricks?

  • @doggedout
    @doggedout 4 года назад +3

    How in the hell has RUclips not recommended this channel to me before now?
    I have only been on since ...2006?...or whatever the start of YT was..trying to mold the algo to my interests..and yet every week or so they recommend some channel that I would obviously be interested in that has been around for years.
    Anywho. Great job. Subscribed.

  • @wagamaoh7154
    @wagamaoh7154 5 лет назад

    You're so passionate in your exposition it puts a smile on my face

  • @garcemac
    @garcemac 4 года назад +1

    2020 here. I love Phil Plait so much I just watch this series once a year or so.

  • @NickSibicky
    @NickSibicky 9 лет назад +10

    LOVE this series. Keep up the great work guys! I proudly back this series on Patreon and urge everyone to do the same!

  • @compier12
    @compier12 5 лет назад +3

    This is awesome! One thing, though, on iPhone the pop up little messages are a little too small to read in the millisecond you allow them on screen. So either make them bigger or freeze them longer on screen. Thanks for all this amazing stuff

  • @daisuke4bleach
    @daisuke4bleach 9 лет назад +1

    Phil, I hope you get the chance to read this, but I want to let you know that these videos are great. I learned so much from this one video and your explanations are clear, concise and exciting. Thanks for your love of the universe. Please keep making videos.

  • @archimusprime2400
    @archimusprime2400 5 лет назад

    I'm 31 years old and it still makes me happy how excited this guy is to talk about neutron stars.

  • @robert_wigh
    @robert_wigh 8 лет назад +3

    Thank you very much for making this episode, Phil Plait and the others at _Crash Course_ Astronomy! This episode was amazing! Definitely the best episode of this series so far. All I heard was ‘huge, gigantic, tremendous, substantial’ (and other synonyms describing the odd properties of a neutron star) and ‘hundred millions, thousands, billions, trillions, quadrillions’ while I saw beautiful pictures of neutron stars, some magnetars and some pulsars. Fantastic! Today I learned very much but the most important thing I learned was that neutron stars are really DENSE, small (because they are very, very COMPRESSED) and that they are really, really weird!
    By brain has melted, mission accomplished, Phil. Thanks for that.
    Despite the my melted brain brain, I do have some questions for you: how rare are neutron stars in the universe? How many have we detected? So, one of every ten neutron stars are magnetars, but how many are pulsars? The last one maybe is kind of obvious, but I will ask it anyway: is the northern star pulsar?

    • @Sturzfaktor2
      @Sturzfaktor2 7 лет назад

      Polaris is not a neutron star and therefore not a pulsar. It's a multiple star system. Seems to contain a pulsating variable star though. en.wikipedia.org/wiki/Polaris
      As for the abundance: en.wikipedia.org/wiki/Neutron_star#Population_and_distances. 2000 in our galaxy, most detected as pulsars.

    • @robert_wigh
      @robert_wigh 7 лет назад

      Sturzfaktor2 Thank you very much for responding!

  • @PikaPetey
    @PikaPetey 7 лет назад +10

    bang

  • @raghavsundar1282
    @raghavsundar1282 9 лет назад

    The look he has when Phil says, "vast beyond imagining", reminds me of the look my sister gives me when she's trying to explain something incredible. Great job Phil.

  • @FieryRedDonkeyOfHell
    @FieryRedDonkeyOfHell 9 лет назад +1

    I have to stop this video midway just to say that this guy is one of the best hosts I've ever seen on RUclips. Like shiet man this guy's like 1.3 Hank Greens.

  • @RandomPerson-jo7cw
    @RandomPerson-jo7cw 5 лет назад +4

    6:54 "Little Green Man 1" I guess it's a Kerbal

  • @gwagner007
    @gwagner007 8 лет назад +10

    lol
    "you'd be dead, obviously. Like, super dead." lolololol I don't know why that made me laugh so hard

  • @miloanderson2903
    @miloanderson2903 9 лет назад +1

    I love this Phil. Best bad astronomer ever!

  • @seanmortazyt
    @seanmortazyt 4 года назад +1

    Best writing and presentation award!

  • @sonoxas7176
    @sonoxas7176 5 лет назад +3

    7:55 The way he said that made me crack up for some reason 😂😂

  • @laurainc
    @laurainc 9 лет назад +62

    AM I THE ONLY ONE WHO WANTS CRASH COURSE: PHYSICS????????///

    • @mawage666
      @mawage666 6 лет назад +1

      Check out Physics Girl. She makes learning about physics fun.

    • @melchiorvonsternberg844
      @melchiorvonsternberg844 5 лет назад

      At least, it was physics. Astrophysics...

    • @Nexandr
      @Nexandr 4 года назад

      it’s out

  • @mattdangerg
    @mattdangerg 9 лет назад

    This is definitely the best crash course series, by far

  • @jasonmcnamara2079
    @jasonmcnamara2079 5 лет назад +2

    at around 5:39 when he says " oh my, yes" it reminded me of professor farnsworth from Futurama

  • @aperson22222
    @aperson22222 9 лет назад +15

    Why do neutrons resist being compressed so much more strongly than electrons?

    • @evilcam
      @evilcam 9 лет назад +17

      +aperson22222 Quantum Mechanical effects. Basically, due to the higher mass of the neutron the wave mechanics of an electron typically have more distant peaks and valleys than the wave mechanic found in a neutron. So a sine wave analysis from a neutron shows that by whatever metric you use to measure the distance from peak to peak or valley to valley is generally "shorter" than the wave peaks and valleys you find with electrons. So because the neutron is more massive, it does not interact as a wave function as far from its "center point" as does an electron. Something which takes up less space, as is sort of analogous to a neutron wave compared to an electron wave form means it can be "squeezed" closer together than the "bigger" or more distant quasi-central point of an electron.
      Interestingly, if you analyzed the wave mechanics of both to try to figure out their actual sizes, the neutron is much larger than the electron, but their quantum effects are reversed as to how they interact with other things around them. So the smaller point particle we call an electron still have a bigger "sphere of influence" than the much larger neutron.
      As noted in the video, whenever the gravitational pull of a collapsing stellar core exceeds a certain limit, the electrons which would hold up the pressure of the star in a white dwarf exceed their limit and they are basically combined with protons (ans specific kind of neutrinos-antineutrinos) to make neutrons, which since that object has a smaller wavelength (due to it being much more massive) you can put them closer together than you could electrons.
      Hope that helps. IT was super simplified, but when trying to talk about quantum effects the simpler (even though it is not accurate) is the best, just to get at the overarching idea.

    • @aperson22222
      @aperson22222 9 лет назад +7

      Abel Tan Particle-wave duality. I don't understand it, but I'm aware of it.

    • @aperson22222
      @aperson22222 9 лет назад +3

      evilcam Thanks, that was helpful. I had assumed electrons resisted being compressed because of their like charges, and that doesn't apply to neutrons. Guess I was barking up the wrong tree.

    • @evilcam
      @evilcam 9 лет назад +6

      Neutrons follow the Fermi-Exclusion principle just the same way electrons do. So yes one way to put it is electrons can't be as compacted simply because of their likeness (charge as a lepton number applies), but it's really that they are fermions which causes their degeneracy pressure threshold. So you're correct aperson22222. There are just a few more quantum mechanical details which truly explains their degeneracy pressure. The conversion point is a result directly of the Weak Nuclear force. Fermi-Dirac statistics are a result of the nature of the particles involved. Like charges (in this context) repel electrons and thus make it hard for them to interact, but the full explanation (or at least the most consistent one) involves all of the above and is explained pretty much solely via quantum mechanisms.

    • @Nebukanezzer
      @Nebukanezzer 5 лет назад +1

      There are certain types of particles called fermions, a distinction depending on a property of a particle called 'spin', which doesn't have a satisfying corollary to anything tangible. It's just a number each subatomic particle or even nucleus has. It's called spin because it interacts with magnetic fields the same way physically rotating does.
      Anyway, if the spin is a certain value, the universe will just resist them being put closer together with all its might. If you wish, you can think that bosons act more like waves, so many of them can be in the same spot, but fermions, like electrons, act more like particles, running into each other and colliding. The universe just doesn't allow two of them to be in the same place and time. Unless they're in a black hole.

  • @dead_machine5461
    @dead_machine5461 9 лет назад +5

    I just passed for the third phase of the Brasilian Physics Olympcs in the 9° grade thanks to you guys :D

  • @allertonoff4
    @allertonoff4 6 лет назад

    had forgotten just how engaging Mr Plait is as writer and presenter of this series .. his enthusiasm is infectious :]

  • @cholten99
    @cholten99 5 лет назад +1

    Going on for four years old and this is still my favorite RUclips video :-)

  • @Phoenix-vf4nd
    @Phoenix-vf4nd 9 лет назад +6

    "you're are mostly empty space" sadly that so true it sad

  • @MrXperx
    @MrXperx 9 лет назад +13

    And I thought Goku training at 100Gs was extreme :P

  • @davidrapalyea7727
    @davidrapalyea7727 6 лет назад

    This is the best neutron star presentation I have seen and I have been looking a lot!

  • @blazeecho6713
    @blazeecho6713 2 года назад

    dude, Phils vids are the best about Astronomy

  • @mustang6172
    @mustang6172 9 лет назад +4

    Why do people say "A fraction of the speed of light?" If light is the fastest possible speed, then aren't all other possible speeds fractions of the speed of light?

  • @Healthwannabe7556
    @Healthwannabe7556 7 лет назад +3

    +Crash Course I request a Quantum Physics series!!!!

  • @benaaronmusic
    @benaaronmusic 9 лет назад +2

    "Now I'm not saying aliens..."
    I almost missed that one.
    Love the videos.

  • @therealpunitdh
    @therealpunitdh 7 лет назад

    I've watched this video at least 7-8 times and it blows my mind more and more each time