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729,303 Views • Aug 24, 2023 • Click to toggle off description
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Spacetime on its smallest scales is a seething ocean of black holes and wormholes flickering into and out of existence—or so many physicists think has to be the case. But why should we take this spacetime foam seriously if we’ve never seen any evidence of it?
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Hosted by Matt O'Dowd
Written by Christopher Pollack & Matt O'Dowd
Post Production by Leonardo Scholzer, Yago Ballarini, Adriano Leal & Stephanie Faria
Directed by Andrew Kornhaber
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Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: John Campbell
Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
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End Credits Music by J.R.S. Schattenberg: youtube.com/user/MultiDroideka
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Views : 729,303
Genre: Education
Date of upload: Aug 24, 2023 ^^
Rating : 4.973 (196/28,381 LTDR)
RYD date created : 2024-05-05T04:07:49.991275Z
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YouTube Comments - 1,948 Comments
Top Comments of this video!! :3
You know you've been watching spacetime for a while when you know who Wheeler, Feynman, Thorne and Everett are and what their contributions were to physics. 6 years ago, I would have had no clue.
458 |
PBS is one of the reasons I decided to study physics, currently struggling with classical mechanics, but I won’t give up, the goal is a PhD in physics, thank you for keeping up curious ❤️
Edit: I have passed the module, I’m now doing a physics and pure maths double major for my final year, next update will be graduation. Thank you for all the positive messages.❤️
352 |
This show is such a gift. It strikes that perfect balance of technical details and concepts while not totally abandoning those who don't work in the field.
82 |
Nothing makes me happier than finding a new episode while winding down body before sleep. This channel is pure bliss. Also Matt is a fantastic narrator ❤️
507 |
The analogy of foamy spacetime also serves to explain what I mean when I answer with "nothing" to a "what are you thinking about?" question.
A bunch of virtual thoughts and anti-thoughts, altering the geometry of my mindspace. The fluctuations are there if you look close enough, but from a broader perspective it looks perfectly level. In other words: no thoughts; head empty
53 |
I've known for a while that the Planck length is the shortest meaningful distance, but I never knew why. Finally being able to connect it to other physics concepts is like a lightbulb moment
28 |
I want to thank the writers for their efforts in making this an easy listen and Matt for his oratory skills! It's always a pleasure to tune in and learn about this fantastic cosmos we live in. You guys and gals ROCK!!!
137 |
Great content on a very complicated subject. Matt is a fantastic communicator. thank you PBS for supporting and producing this content.
350 |
Man, the writing in these videos is INCREDIBLE. The way you explained the heisenberg uncertainty principle in combination with GR in such a easy to understand and logical way for people who dont have university level physics education is mind blowing. There's no where else on youtube where you get such easy to understand but in depth videos on such insanely complex topics :D
83 |
that ocean surface analogy was fantastically presented.. thank you pbs space-time team ❤
47 |
the animators are getting better and better, that's a real treat for the viewers. thanks to the team
8 |
I'm increasingly uncertain about the amount of beer I actually have under an alarmingly large expanse of foam. I guess only time will tell how much empty space I am left with once it settles.
109 |
Audio sounds more natural this time. Appreciate whatever the team has done to improve it. Great episode, too!
36 |
Can you put up a 10 minute repeating video of that quantum foam? It was oddly satisfying and relaxing. Bonus points if the audio is Matt reading his favorite physics paper.
12 |
this show is such a great contribution to science education and humanity, you take us on the ride of modern physics without needing us to do the math
I apprentice your choice of words that convey the innate uncertainty of all scientific theories while recognizing all the work that went into our current understandings
It's just a perfect channel and I wanted to thank you for your service
32 |
Imagine sailing in a boat of size of a peanut through an ocean with waves higher than a skyscraper for 40 billion years. And then astronomers catch you and say aha, this fella must have been emitted by a helium atom from galaxy GE-5576 around a million years after the Big Bang.
12 |
5:00 Be mindful that the Heisenberg Microscope makes it easy to confuse the uncertainty principle with the observer effect. One can argue in this vein to show the trade-off in uncertainties, but it makes it easy to mistake any uncertainty for a product of a measurement, rather than an intrinsic property.
12 |
This theory explains so much and even though it hasn't been tested it has that intuitive quality of beauty that correct theories tend to have. Thank you Matt for your excellent presentation and graphic illustrations.
13 |
about two weeks ago I was watching multiple people play in a swimming pool independently and observed the rhythmic fluctuations of the water. I was imagining the people as particles and the water as space, so this analogy felt very intuitive to me. super cool!!
3 |
@916rockfox
8 months ago
PBS Space Time reminds me how much I want to keep learning.
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