Professor Kendall, I just have to thank you for posting these fantastic lectures. I listen to them all every few months, and they just never get old. I know I'm probably asking a lot, but I genuinely hope you do more of these in the future (although you've already covered just about everything worth covering, in my eyes, but I'm confident there have to be other things unbeknownst to me that I would find just as enthralling) Again, thanks and I hope all is well.
Glad you like them! Yes, there are quite a few subjects I did not touch on. Cosmic rays, exoplanets (ehrmagehrd), planets (in general), space weather, human exploration, robotic exploration of the solar system, advances in the space industry, space policy....
@@JasonKendallAstronomer All of that is music to my ears! If you decide to put out a lecture on any of these topics, know that you'll have at least one view haha
@@JasonKendallAstronomer Well deserved tribute. If you haven't exceeded your quota of stupid questions, I've never believed gravity needed a force-carrying particle, but what properties would allow it to escape a black hole, if one existed. Sorry, it's what happens when you expose yourself to the world.
I have seen many videos about ligo-virgo, but the part beginning in 42:50 is new to me, jaw dropping. Just to imagine Prof Weiss, planning as a student perhaps the most precise instrument possible nowadays, one which even Einstein said would be impossible to build, and actualizing his plan along 50 years of perseverance, is for me an amazing personal, human, scientific, story and achievement. (and to think that Germany, the origin of so much great science, would send him to the gas chambers only because he was a Jewish child, is also a symbolic aspect of Western civilization, which I will never be able to grasp. )
@@JasonKendallAstronomer You see, Rai Weiss is just 16 years older than me, and less than 20 years younger from my parents, who also studied in Vienna and had to escape the Nazis, so it is all so real for me, and his genius, nice personality, perseverance, and achievement are so amazing... Also the other members of his staff are such nice people to listen to, the whole thing is of the sort that makes me say, and in spite of all, it is worthwhile to stay around for a little while more, incredible things are still happening. Altogether the dimensions of the modern measurement tools are amazing: The SK telescope in Australia and Africa, the CERN machine, the south pole drills to detect those particles, even something like the James Webb, just to compare it to the ground breaking tool a few hundred years ago, with all respect to Galileo's telescope, -- it is impressing LOL. And never accuse me of under appreciating the great achievements of the past. I adore people like ("people like" ha?) Euclid, Aristo, Kepler, Newton, etc etc to the 19th and 20th century. Still, I am impressed! LOL
Binge watching your lectures, and in your slide "Nearly flat spacetime with a little bump", shouldn't the dr2 term be 1/ (1+ ...)? I think that's what you had in your Black Hole lecture.
@@JasonKendallAstronomer I tried looking up the equation on line, but my maths isn't good enough to rearrange the equation. Sorry, I couldn't remember which of your other videos the equation was presented.
warp and woof The essential foundation or base of any structure or organization; from weaving, in which the warp - the threads that run lengthwise - and the woof - the threads that run across - make up the fabric: “The Constitution and the Declaration of Independence are the warp and woof of the American nation.”
Professor Kendall, I just have to thank you for posting these fantastic lectures. I listen to them all every few months, and they just never get old. I know I'm probably asking a lot, but I genuinely hope you do more of these in the future (although you've already covered just about everything worth covering, in my eyes, but I'm confident there have to be other things unbeknownst to me that I would find just as enthralling)
Again, thanks and I hope all is well.
Glad you like them! Yes, there are quite a few subjects I did not touch on. Cosmic rays, exoplanets (ehrmagehrd), planets (in general), space weather, human exploration, robotic exploration of the solar system, advances in the space industry, space policy....
@@JasonKendallAstronomer All of that is music to my ears! If you decide to put out a lecture on any of these topics, know that you'll have at least one view haha
That animation of the tubes, and the whole video, was as good a description as I've encountered. Good work.
Glad you liked it!
@@JasonKendallAstronomer Well deserved tribute. If you haven't exceeded your quota of stupid questions, I've never believed gravity needed a force-carrying particle, but what properties would allow it to escape a black hole, if one existed. Sorry, it's what happens when you expose yourself to the world.
Congratulations. You managed to communication the "essence" of GR and Differential Geometry in < 70 mins.
Wow, thanks!
Amazing videos, criminally underated
I have seen many videos about ligo-virgo, but the part beginning in 42:50 is new to me, jaw dropping.
Just to imagine Prof Weiss, planning as a student perhaps the most precise instrument possible nowadays, one which even Einstein said would be impossible to build, and actualizing his plan along 50 years of perseverance, is for me an amazing personal, human, scientific, story and achievement.
(and to think that Germany, the origin of so much great science, would send him to the gas chambers only because he was a Jewish child, is also a symbolic aspect of Western civilization, which I will never be able to grasp. )
You've captured it. This discovery is truly astounding.
@@JasonKendallAstronomer You see, Rai Weiss is just 16 years older than me, and less than 20 years younger from my parents, who also studied in Vienna and had to escape the Nazis, so it is all so real for me, and his genius, nice personality, perseverance, and achievement are so amazing... Also the other members of his staff are such nice people to listen to, the whole thing is of the sort that makes me say, and in spite of all, it is worthwhile to stay around for a little while more, incredible things are still happening. Altogether the dimensions of the modern measurement tools are amazing: The SK telescope in Australia and Africa, the CERN machine, the south pole drills to detect those particles, even something like the James Webb, just to compare it to the ground breaking tool a few hundred years ago, with all respect to Galileo's telescope, -- it is impressing LOL. And never accuse me of under appreciating the great achievements of the past. I adore people like ("people like" ha?) Euclid, Aristo, Kepler, Newton, etc etc to the 19th and 20th century. Still, I am impressed! LOL
Great explanation sirr
Thank-you sir
Does this finding support quantum gravity theory? Thank you professor Kendall.
Actually it supports the classical Einsteinian Relativity. There is no need to include quantum gravity to explain the observations.
Amazing thank you
How could the explosion of 2 relatively small black holes be the most powerful event except for the big bang ?
most powerful *known* event. we don't know about all the other black hole mergers from before LIGO
Yea, the most incredible part is 3 solar masses converted to gravitational waves! Agreed!
Tantalizing thoughts arise
Binge watching your lectures, and in your slide "Nearly flat spacetime with a little bump", shouldn't the dr2 term be 1/ (1+ ...)? I think that's what you had in your Black Hole lecture.
I’ll look at it. Thank for being thorough
@@JasonKendallAstronomer I tried looking up the equation on line, but my maths isn't good enough to rearrange the equation. Sorry, I couldn't remember which of your other videos the equation was presented.
You hear chirps like that all the time on Ham radio.
warp and woof
The essential foundation or base of any structure or organization; from weaving, in which the warp - the threads that run lengthwise - and the woof - the threads that run across - make up the fabric: “The Constitution and the Declaration of Independence are the warp and woof of the American nation.”
Indeed!