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Einstein once asked whether “the moon exists only when I look at it?”. It was rhetorical objection to the idea that measurement in quantum mechanics causes reality to become real. But there was a time when the moon didn’t exist, and then hours later suddenly did. At least, according to the latest simulations of its formation.

Check Out Matt on the Theories of Everything Podcast:
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Hosted by Matt O’Dowd
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Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
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In this 2022 end of year, Ask Matt anything, Matt discussed the upcoming year ahead for Space Time, Black Holes, the problem with the question of free will, the nature of photons of light and more!

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Supercritical Fluids are one the strangest states of matter and yet they are found everywhere from Decaf Coffee, to dry cleaning, to the atmosphere of Jupiter. When we think of an exotic state of matter we tend to think of the really weird things that matter can do in extreme circumstances – like how at very high temperatures we get the plasma that the sun is made of, or at extreme densities we get the nuclear matter of neutron stars. But there’s one state of matter – supercritical fluid – that’s not solid, liquid or gas, but is also not confined to extreme or rare environments. In fact, there are planets in our solar system completely covered with oceans of the stuff, and you’ve often been the beneficiary of its powers without even knowing it.

Special Thanks to Nigel Braun. Check out his episodes on
Supercritical Fluids: https://youtu.be/JslxPjrMzqY
Making Aerogel: https://youtu.be/Y0HfmYBlF8g

Felix Flicker’s talk on quasi-magnetic monopoles
https://youtu.be/S3xH97Su-KY

Latest paper on the detection of an active galaxy by Ice Cube
https://arxiv.org/pdf/2211.09972.pdf

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Hosted by Matt O’Dowd
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Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
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The device you’re watching this video on is best understood by thinking about positive and negative charges moving around a circuit of diodes and transistors. But the only elementary particle actually flowing in the circuit is the negatively charged electron. And yet those flowing positive charges are there, in the form of a particle you may never have heard of.

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Hosted by Matt O’Dowd
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Neutrinos are one of the most bizarre of known particles. Black holes are probably the most bizarre of astrophysical objects. Makes sense we should use one to study the other, no? Well, today we’re doing just that.

Special Thanks to: Science Communication Lab for DESY for use of their image in the thumbnail. Check out: https://www.scicom-lab.com/ to see more amazing images.

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Hosted by Matt O’Dowd
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Adamantium, bolognium, dilithium. Element Zero, Kryptonite. Mythril, Netherite, Orichalcum, Unobtanium. We love the idea of fictional elements with miraculous properties that science has yet to discover. But is it really possible that new elements exist beyond the periodic table?

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Hosted by Matt O’Dowd
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Half of the universe is filled with expansionist alien civilizations, and it’s only a matter of time before they’ll reach us. OK, that sounded a little sensationalist. But it’s also the conclusion of a recent astrophysics paper. Let’s see how they figure this, and whether we should take it seriously.

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Hosted by Matt O’Dowd
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Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
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The Nobel prize in physics is typically awarded to scientists who make sense of nature; those whose discoveries render the universe more comprehensible. But the 2022 Nobel has been awarded to three physicists who revealed that the universe is even stranger than we thought thanks to Quantum Entanglement

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Previous Episodes Mentioned:
Quantum Entanglement and The Great Bohr Einstein Debate: https://youtu.be/tafGL02EUOA
Pilot Wave Theory and Quantum Realism: https://youtu.be/RlXdsyctD50
What If we Live In a Superdeterministic Universe: https://youtu.be/JnKzt6Xq-w4

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Hosted by Matt O’Dowd
Written by Fernando Franco Félix & Matt O’Dowd
Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Caique Oliveira, Adriano Leal & Stephanie Faria
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Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
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Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
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End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

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The Standard Model of particle physics is arguably the most successful theory in the history of physics. It predicts the results of experiments with a numerical precision unmatched by any other branch of science, and it does so almost unfailingly. The theory is encapsulated in a single equation known as the Standard Model Lagrangian. Today we’re going to explain to you how it works!

Want to Dive Deeper into the Standard Model Lagrangian? Check out:
https://www.youtube.com/watch?v=kixAljyfdqU&list=PLsPUh22kYmNBgF_VMMLHFK0lbQGlVGk3v&ab_channel=PBSSpaceTime

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Hosted by Matt O’Dowd
Written by Fernando Franco Felix & Matt O’Dowd
Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Caique Oliveira, Adriano Leal & Stephanie Faria
Directed by Andrew Kornhaber
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Executive Producers: Eric Brown & Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
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: https://www.youtube.com/user/MultiDroideka

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I’m going to tell you about the craziest proposal for an astrophysics mission that has a good chance of actually happening. A train of spacecraft sailing the sun’s light to a magical point out there in space where the Sun’s own gravity turns it into a gigantic lens. What could such a solar-system-sized telescope do? Pretty much anything. But definitely map the surfaces of alien worlds.

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Hosted by Matt O’Dowd
Written by Matt Caplan & Matt O’Dowd
Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Caique Oliveira, Adriano Leal & Stephanie Faria
GFX Visualizations: Ajay Manuel
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producers: Eric Brown & Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
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.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
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End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

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