shimpsblog [en]

What is a phantom singularity meaned to be? The Schwarzschild metric has got one at the event horizon. This singularity is due to the choice of coordinates which are not suited to describe what is going on at this position.

The Phantom Singularity | Space Time

PBS Space Time

Jan 19, 2017

• https://www.youtube.com/watch?v=-q7EvLhOK08
  • 18m04s

On the way into a black hole you must pass the event horizon. What is happening there?

What Happens at the Event Horizon? | Space Time | PBS Digital Studios

PBS Space Time

Dec 9, 2016

• https://www.youtube.com/watch?v=mht-1c4wc0Q
  • 19m58s

Neither in classical nor in quantum mechanics information can be destoyed. But black holes seem to be an exception from this fundamental law of nature.

The Black Hole Information Paradox

PBS Space Time

Jun 20, 2018

• https://www.youtube.com/watch?v=9XkHBmE-N34
  • 15m29s

A new paper tries to unite quantum physics and Einsteins's general relativity based upon Planck scale formalism. Unfortunately Sabine Hossenfelder doesn't know what Planck scale formalism is supposed to be, neither do I. However, the new paper is kind of entertaining. It claims to explain so many things all in one. Quote [4m48s]: a lot of crap papers get published. Relax and enjoy:

A New Theory of Everything Just Dropped!

Sabine Hossenfelder

Sep 9, 2024

• https://www.youtube.com/watch?v=Yk_NjIPaZk4
  • 7m05s

Again the ultimate mystery: what happens inside a black hole?

What Survives Inside A Black Hole?

PBS Space Time

Jun 13, 2018

• https://www.youtube.com/watch?v=GscfuQWZFAo
  • 14m07s

There are a few things, which make people rethink the big bang theory. It is still the best explanation of the universe at the time. What exactly is going on?

What’s Wrong With the Big Bang Theory? | Space Time | PBS Digital Studios

PBS Space Time

Mar 2, 2016

• https://www.youtube.com/watch?v=JDmKLXVFJzk
  • 12m57s

Can we build - in principle - a black hole? How? Here is an explanation what's going on in this exotic and strange field of science.

How to Build a Black Hole

PBS Space Time

Dec 9, 2015

• https://www.youtube.com/watch?v=xx4562gesw0
  • 13m21s

The ultimate mystery: what happens inside a black hole?

Do Events Inside Black Holes Happen?

PBS Space Time

Aug 20, 2015

• https://www.youtube.com/watch?v=vNaEBbFbvcY
  • 14m24s

The inside of a black hole is a interesting place for modern physics. The concept of Penrose diagram reveals some insight.

What Happens INSIDE a Black Hole?

Astrum

Mar 28, 2024

• https://www.youtube.com/watch?v=qWW0HrVC30s
  • 18m00s

WP: Penrose diagram

This is part VI in a mini series of videos about Machian gravity.

What's Wrong with Classical Mechanics?

Unzicker's Real Physics

Sep 9, 2024

• https://www.youtube.com/watch?v=wNie5YA9uFI
  • 7m25s

Russell's antinomy is a profound mathematical paradox which shaked the foundations of set theory.

Russell's Paradox - a simple explanation of a profound problem

Jeffrey Kaplan

Sep 8, 2022

• https://www.youtube.com/watch?v=ymGt7I4Yn3k
  • 28m27s

WP: Bertrand Russell
WP: Russell's paradox

More about size and geometry of the universe:

How far is the edge of the universe?

Fermilab

Oct 23, 2019

• https://www.youtube.com/watch?v=u23vZsJbrjE
  • 16m27s

Don Lincoln from Fermilab explains the size of our universe.

If the universe is only 14 billion years old, how can it be 92 billion light years wide?

Fermilab

Jun 19, 2019

• https://www.youtube.com/watch?v=vIJTwYOZrGU
  • 9m46s

WP: Don Lincoln
WP: Fermilab

This is part V in a mini series of videos about Machian gravity.

Gravity from Cosmic Scale Invariance

Unzicker's Real Physics

Aug 25, 2024

• https://www.youtube.com/watch?v=bGs2sDyo_6I
  • 17m19s

This is part IV in a mini series of videos about Machian gravity.

The Soliton Model of Elementary Particles (Dennis Braun)

Unzicker's Real Physics

Aug 18, 2024

• https://www.youtube.com/watch?v=UHshloiMdyk
  • 43m13s

Again another version of Lawrence Krauss' talk about the universe:

A Universe from Nothing | Lawrence Krauss | Nobel Conference

Gustavus Adolphus College

Oct 2, 2013

• https://www.youtube.com/watch?v=F87DyAsYQoI
  • 1h39m00s

Another version of Lawrence Krauss' talk about the universe:

Lawrence M. Krauss || A Universe from Nothing || Radcliffe Institute

Harvard University

Jul 17, 2013

• https://www.youtube.com/watch?v=vwzbU0bGOdc
  • 1h16m36s

Is it possible to create our universere with zero total energy? What's about the rest mass energy E=mc² as told by Einstein?

'A Universe From Nothing' by Lawrence Krauss, AAI 2009

Richard Dawkins Foundation for Reason & Science

Oct 22, 2009

• https://www.youtube.com/watch?v=7ImvlS8PLIo
  • 1h04m51s

WP: Lawrence Krauss

How is physics done in the field of particle physics? And what is the problem?

What's Going Wrong in Particle Physics? (This is why I lost faith in science.)

Sabine Hossenfelder

Feb 11, 2023

• https://www.youtube.com/watch?v=lu4mH3Hmw2o
  • 21m44s

Can we understand gravity via Mach's principle?

Real Physics Talk: André Koch Assis - Mach's principle

Unzicker's Real Physics

Nov 12, 2023

• https://www.youtube.com/watch?v=PIKx-fGH5e0
  • 1h22m10s

Do we understand electrodynamics completely? Or is there something missing?

Real Physics Talk: André Koch Assis - Mysteries of Electrodynamics

Unzicker's Real Physics

Oct 29, 2023

• https://www.youtube.com/watch?v=vVJ3WHft9d8
  • 1h10m42s

Andre Koch Torres Assis
Prof. Dr. Andre Assis Koch Torres

Some background about Turing machines and the origins of the busy beaver game:

Turing Machine Primer - Computerphile

Computerphile

Sep 4, 2014

• https://www.youtube.com/watch?v=DILF8usqp7M
  • 5m51s

WP: Tibor Radó

Professor Brailsford explains the concept of the busy beaver game on Turing machines.

Busy Beaver Turing Machines - Computerphile

Computerphile

Sep 2, 2014

• https://www.youtube.com/watch?v=CE8UhcyJS0I
  • 17m56s

Professor David Brailsford
WP: Busy beaver
WP: Turing machine

The scientific method requires an open minded community and freedom of speech to discuss controversial topics. But sometimes there are unpleasant results. Revealing the truth may have effects on someone's reputation. This is where a replacement for the scientific method comes into play: the law.

These Scientists Got Sued for Doing Their Job

Sabine Hossenfelder

Dec 9, 2023

• https://www.youtube.com/watch?v=eSGxCYNwFe4
  • 16m34s

An experiment on the ISS discovered antimatter Helium which is a real surprise.

Crazy New Physics Anomaly: Anti-Matter Helium Detected

Sabine Hossenfelder

Aug 14, 2024

• https://www.youtube.com/watch?v=LVU-hwZgnuA
  • 6m41s

WP: Antimatter
WP: International Space Station (ISS)