The Physics of Black Holes – with Chris Impey

40 thoughts on “The Physics of Black Holes – with Chris Impey”

1. Like others have said, I hate when I start watching these RI talks late at night. I end up staying up most of the night. I enjoy them that much!

2. And the last conscious being will link the fire to start a new universe, or choose to become the lord of darkness and entropy.

3. I would throw myself into a black hole just to see whats it like

4. I volunteer myself for the human black hole experiment.

5. If time is stopped at the event horizon, is the information not lost?

6. @18:30 this guy turned into a idoit

7. "Research is what i do, when i don't know what to do"
   I'm currently unemployed watching this at 5am!! love it!!!!

8. Tough crowd.. Or maybe poorly micced up.

9. Why did Europe give up on God?

10. What a fantastic lecturer and teacher. Much better than many of the high profile astronomers like NDT.

11. Exactly these concepts that produced my PhD in astrophysics a long time ago. And you don't have to wait for the end to use BH as energy sources. Close to the horizon they act like one-way time machines, sitting there for a while will propel you into the far future after the cultural marxists are long gone.

12. So what is the mechanism that creates a black hole with stars orbiting? Are the black holes capturing the stars ? Or creating the stars? Has that been understood?

13. Read this guys book The LIving Cosmos. Had a question so I messaged him on facebook. Day later he replied with several paragraphs explaining my question. Great guy

14. Who keeps clicking auto play while i;m asleep? I specifically click it so I don't get woken up to terrible audio, yet I keep getting woken up in the middle of the night to the next video randomly starting… 5 hours after silence…

    Thanks youtube.

15. Excellent presentation–clear and interesting for a non-physicist

16. Where do physicists get the idea that there would be extreme heat and pressure at the center of a massive star? At the center there would be an equal mass in all directions, and the gravity would cancel out to zero. Similar to the physics law stating that energy cannot be created or destroyed, I propose a law stating that the gravity at the center of gravity is zero! I challenge anyone to prove me wrong. Electricity rules!

17. I have a thought. After every black holes evaporates by hawking radiation what is left in the universe? Darkness? Yes, but current physics knows that in the vacuum space there are energy, so, that is the future civilization can extract energy from vacuum and in that way the energy from black holes is not that necessary anymore. Maybe is not the end…

18. Once you're awake, all you'll see are black holes

19. The author of this video must have been too busy with Xmas to reply to my challenge. Ok, that's over. As one would travel deeper towards the centre of gravity (mass) of an object, the mass above us would be gradually reducing the gravity and pressure from below until both reached zero. Black hole theory states that matter would collapse from loss of resistance to gravitational force. Really?

20. Amazing

21. Man, that animation of the stars boomeranging around the center of the Milky Way was special, thanks.

22. I watch these and try to understand but makes me realize how feeble minded I am compared to these scientists.

23. I'd disagree with his opinion at the start that the average Joe thinks science is just cut and dried facts. I think the popular consensus of scientists nowadays is that they don't know what they are talking about. I think the way to counter that is to be far more direct in communicating what we are sure we know.

24. Straw poll: given the chance, would you jump into a massive black hole?

25. a great scientist unable to spell Einsten correctly is kind of mind boggling to me. we say "Einshtein".

26. Could we use electron entanglement as a communication method while entering a black hole.

27. that black hole in the phoenix cluster The Sheer size of that 20 billion suns is 1 seriously scary object i dont think we understand how fucking big that really and truly is Damnnn

28. there is a sea of electromagnetism, and ripples in it can be seen as light. because things in space affect this sea differently, does not mean time varies

29. Interesting, but I have yet to watch any of these lectures where they start out by explaining how you prove that there is such a thing as space-time. They all cite Einstein, but they never explain it which leads me to question whether any of them really understand it themselves. You can claim it's all settled, but they still don't have a unified theory that accounts for quantum mechanics and general relativity. That leaves open the possibility that their conception remains flawed.

    You can say the same thing about dark matter and dark energy. If you don't even know what most of the stuff that makes up the universe is, then maybe your entire conception is just wrong. It reminds me of the epicycles they used to invent to try and explain the movement of objects in the sky when they thought the earth was the center of the universe.

30. Theoretical.

31. sorta looks like Bob Lazar.

32. 666
    Research is what I'm doing when I don't know what I'm doing.
    Wernher von Braun
    Not Gell Mann.

33. Does this person know that Einstein wrote an article in 1939 explaining why black holes and relativity are mutually exclusive?
    And that space time curvature gravity has been falsified in several ways? One way is to observe the way light bends around our sun during a solar eclipse.
    According to the hypothesis of space-time curvature, the bending should assymtotically go to zero as the angle between the far object (a distant star), the observer (on earth) and our sun goes to 180 degress (pi radians). Observation however is that the distant star light only bends through the plasma of our sun (the solar atmosphere) and no bending occurs outside the solar atmosphere.
    Please accept falsification and accept that relativity and black holes, and anything wrt. space-time curvature are not real.

34. Dr. Robitaille, Sky Scholar throws a wrench into all this mathematical wizardry.

35. People only seem to talk about what it looks like from an outside observer when someone falls into a super massive black hole. The person slows down and never gets there from our view, but from the person falling in the outside universe would look very different. That person would see the whole history of the universe speeding up and going by very quickly as they fall in. They would see the end of time and maybe be there when the next universe is born unless Hawking radiation erased the black hole first.

36. Good day Mr Impey, could you tell how black holes form and why?

37. all those billions of years don't seem right

38. It’s Plasma

39. What is the musical piece?

40. As long Gravity is defined by Mass and vice versa, Electrodynamics neglectetd and peer reviews written by
    Friends of materialism we wont see the black hole in the Photon, the Atom and any "Particle" in the Universe.
    Paradigm shift is just happening and at the end everything becoming far more simple. The Information is
    Sound! (Black Body Radiation) Tesla's "Vibration". The "Event Horizon" is a Plasma boundary. If Plack's arm
    and the results of his research werent twisted by those mainstream materialists we would already know. OM

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