Big Bang Cosmology: The Origin and Fate of the Universe

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  • เผยแพร่เมื่อ 9 ม.ค. 2025

ความคิดเห็น • 25

  • @edd.
    @edd. 9 หลายเดือนก่อน +6

    This is awesome!! Fantastic job! Thank you

  • @jasonshapiro9469
    @jasonshapiro9469 2 หลายเดือนก่อน +2

    Holy moly you've got some good videos! Hours on hours on hours..ĝood job and thanks! 🙏

  • @rrj6068
    @rrj6068 6 หลายเดือนก่อน +3

    Henrietta Leavitt should have gotten a Nobel Prize for her work .....

    • @carlbell2226
      @carlbell2226 5 หลายเดือนก่อน

      @@rrj6068 that's about right not the first time someone's made a discovery and someone else has got the credit

  • @FatemaSiddika-n4j
    @FatemaSiddika-n4j หลายเดือนก่อน +1

    Where are the notes link please help me kindly

  • @arthurwieczorek4894
    @arthurwieczorek4894 9 หลายเดือนก่อน +4

    'Density is destiny' is certainly true for stars.

  • @Ben942K
    @Ben942K 5 หลายเดือนก่อน

    Thanks Jason your vids give me peace and appreciation for all there is to know about space!

  • @anotherplatypus
    @anotherplatypus 6 หลายเดือนก่อน +2

    Any chance (like if you're bored) you could hit cosmic inflation? It's supposed to be like space inflated like a helium balloon faster than the speed of light... then it suddenly ceased, and now the universe has several horizons... like objects 11 billion years old are actually 40 billion lightyears distant, and there are horizons where objects currently emitting light that will be dimmed into blackness, but we can still observe what they had emitted billions of years ago, but won't be able to later... the horizons are all very confusing

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  6 หลายเดือนก่อน

      Here's my long video about Inflation: th-cam.com/video/seCKqA7e2Gw/w-d-xo.htmlsi=9K2Ow_0eLzW71iz_

    • @anotherplatypus
      @anotherplatypus 6 หลายเดือนก่อน

      @@JasonKendallAstronomer Sixty Symbols just released a video about inflation called Where Particles Come From... I have a masters in Computer Science, and an hobbying interest in particle physics... but the video very quickly made me rest my head to my shoulder, close one of my eyes... and watch it through end nodding as if I understood

  • @josephshaff5194
    @josephshaff5194 8 หลายเดือนก่อน +1

    When do we separate from the Astronomy / Astrophysics Majors or do we ever really ?
    Running a dual Career.

  • @arthurwieczorek4894
    @arthurwieczorek4894 9 หลายเดือนก่อน +4

    So, is time in the universe or is the universe in time? Is there another possibility? At this level of abstraction it might be helpful to recount Lee's Elucidation: A finite number of words must be made to represent an infinite number of things and possibilities.

  • @RajeshSingh-Bhangu
    @RajeshSingh-Bhangu 9 หลายเดือนก่อน +4

    Excellent analysis

  • @kennethessenwanger268
    @kennethessenwanger268 9 หลายเดือนก่อน +6

    Jack and Jill went down a hill
    To fetch a pail of Hawking particles.
    Jack fell down and broke his gluon crown,
    While Jill was observing after.
    Jack looked up to Jill, he thought:
    To her he could not caper.
    He went to bed and wrapped his head in the singularity and black paper.

    • @EKDupre
      @EKDupre 9 หลายเดือนก่อน +1

      That's a beauty💙

    • @carlbell2226
      @carlbell2226 5 หลายเดือนก่อน

      Brilliant the universe can be explained by rhyme much better

  • @deltalima6703
    @deltalima6703 7 หลายเดือนก่อน +1

    5:46:00 "normal matter, and dark matter, w=0. For relativistic matter, like light or nuetrinos, w=1/3..."
    Confusion here. Neutrinos are dark matter. They are hot dark matter, but hot vs. cold was never mentioned. Is there a difference on w for the two? Why?

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  7 หลายเดือนก่อน

      Actually, neutrinos are a bad candidate for dark matter. Back in the '90s HDM was considered, but then discarded when it was understood that it would smooth out the matter density lumps and force galaxy formation to come much later....

  • @cliffferguson9024
    @cliffferguson9024 9 หลายเดือนก่อน +1

    Very well said

  • @ramlakkan9056
    @ramlakkan9056 7 หลายเดือนก่อน +1

    Thanks 😊 😊😊😊

  • @kapsi
    @kapsi 9 หลายเดือนก่อน +2

    That's a big one

  • @Lefejame123
    @Lefejame123 9 หลายเดือนก่อน +1

    Let's gooooo

  • @deltalima6703
    @deltalima6703 7 หลายเดือนก่อน +1

    6:24:30 Sounds like the universe is homeopathic. No wonder scientists are mad. :D

    • @deltalima6703
      @deltalima6703 7 หลายเดือนก่อน

      For medicine you use the most powerful poisons, nightshade for example, (just like a real idiot would); but you dilute it. And the more times you dilute by half, the better the medicine works. Supposedly.
      End result is selling bottles of placebo in place of medicine, and it makes scientists livid.