• 2011
Sabine Hossenfelder

Summary Relying principally on thought experiments and conceptual descriptions rather than mathematics Sabine Hossenfelder delves into deep aspects of the physics of matter and the universe to explain erroneous assumptions and concepts that are often misunderstood. View more details

  • 2011

Sabine Hossenfelder

Directed : Unknown

Written : Unknown

Stars : Sabine Hossenfelder

All cast & crew

7.8

Details

Genres : Documentary News

Release date : Nov 6, 2011

Countries of origin : Germany

Official sites : Official YouTube Channel

Language : English

Summary Relying principally on thought experiments and conceptual descriptions rather than mathematics Sabine Hossenfelder delves into deep aspects of the physics of matter and the universe to explain erroneous assumptions and concepts that are often misunderstood. View more details

Details

Genres : Documentary News

Release date : Nov 6, 2011

Countries of origin : Germany

Official sites : Official YouTube Channel

Language : English

Episodes

View All Seasons
Aug 16, 2019
How we know that Einstein's General Relativity can't be quite right
Sabine argues that Einstein's Theory of General Relativity isn't quite right because it cannot handle singularities and can't answer the questions handled by quantum mechanics. So it must be incomplete. What is needed is a theory of quantum gravity.
Sep 26, 2019
The Trouble with Many Worlds
A difficulty with Coppenhagen interpretation is that it gives probabilities for experimental outcomes. But in reality we always measure only a single outcome with 100% certainty - the wave function collapse. The many worlds interpretation deals with this by contending that both outcomes occur by creating new universes. But Sabine argues that this is no different that the wave function collapse concept.
Apr 28, 2020
The Raven Paradox
Hempel's Paradox, also known as the raven paradox, uses a hypothetical black raven to explore the scientific method. It is intended to help scientists determine which observations are evidence in favor of a theory, since not every instance can be tested, and how significant that evidence is.
Jan 22, 2021
Where do atoms come from?
Feb 26, 2021
Understanding Quantum Mechanics: Schrödinger's Cat Experiments
Apr 30, 2021
Dark Matter: The Situation has Changed
Initially dark matter appeared to be a nice neat theory to explain certain phenomenon of light and stars and galaxies where there was not enough mater to to explain their behavior. But as cosmologists looked further they found other behaviors that dark matter couldn't explain but an alternative theory, modified gravity, handles well. Unfortunately modified gravity has trouble with some behavior that dark matter explains. So which theory is best. Dr. Hossenfelder believes we need to embrace both and work toward combining them into a unified theory.
Jul 02, 2021
Can We Make a New Universe?
It is theoretically possible to create a tiny universe by creating a false vacuum, e.g. a volume filled with energy but lacking any matter. To do it would require the energy equivalent of ten kilograms of matter (per Einstein's equation). It's the sort of event done in the Large Hadron Collider but with far, far...far less energy. According to theory such a universe wouldn't grow to destroy our universe but separate from it never to be see again.
Jul 16, 2021
What's the Fifth Force?
As physicists struggle to detect dark matter many wonder if it really exists. Maybe the behavior attributed to dark matter and gravity is entirely different - a fifth fundamental force. If so scientists are probably looking in the right places; the edge of the universe if it's a long distance force, or exotic fundamental particle with the Large Hadron Collider if it's a short range force.
Aug 27, 2021
Why is quantum mechanics weird? The bomb experiment
If you think quantum mechanics is weird Dr. Hossenfelder agrees with you. But it's not quantum entanglement or the superposition of states (e.g. Shroedinger's cat) that bother's her. It's Elitzur's and Vaidman's bomb experiment that tells you an event didn't happen when checking to see if it happened would make it happen.
Sep 17, 2021
The Physics Anomaly No One Talks About: What's Up with Those neutrinos?
Nov 19, 2021
The 3 Best Explanations for the Havana Syndrome
In 2016 several US diplomats fell ill with mysterious symptoms. Since then other US diplomats around the world experienced similar symptoms. The cause is still uncertain but research have pretty much ruled out mass hysteria in favor of microwaves or ultrasound. Here's why.
Nov 26, 2021
Does anti-gravity explain dark matter?
Sabine once took an in depth look at whether dark matter and dark energy could be caused by anti-gravity. The answer is no but the process of demonstrating that clarifies some interesting aspect of antimatter, anti-gravity and, of course, dark matter and dark energy.
Mar 04, 2022
Did the universe inflate?
Sabine examines the debate about cosmic inflation in the earlier universe which some scientists contend is an exercise in data fitting. Sabine challenges the logic of both the arguments in favor and opposed to inflation.
Jun 24, 2022
Whatever Happened to the Bee Apocalypse?
The bee-apocalypse is still with us but bee keepers have it under control in their domesticated honey colonies. But the wild bees, which are essential for many plant species, are still at risk and their condition isn't understood at all well.
Nov 04, 2022
The Quantum Hype Bubble is about to Burst
Quantum technology has attracted considerable investment by Sabine believes it is based on hype and will take much longer and yield less benefit that claimed. In that she's not alone.
Nov 15, 2022
A Superfluid That Simulates the Early Universe, Good News from the Webb Telescope & more
Feb 16, 2024
New time crystal stable for more than 40 minutes: Nobel Prize on the way?
Time crystals are a ground breaking discovering in physics that is waiting for an equally ground breaking application to produce the next Nobel Prize winner.
Feb 19, 2024
Good News: Small Nuclear Thorium Reactors are Coming to Europe
Despite the naysayers companies in France and Netherlands are moving full steam(?) ahead with Thorium nuclear reactors.
Mar 03, 2024
Scientists warn of AI collapse
The original neural networks were trained with human generated data. But what will happen as AI generated data becomes prevalent and a growing part of future training data. Studies suggest the result will be less diversity and an increase in nonsense in the output. In other words; AI generated data is garbage in.
Mar 20, 2024
The Black Hole in our Galaxy is Weird: 6 Reasons
The closest super-massive black hole at the center of our own Milky Way offers a close look at unusual black hole behavior with the specialized telescopes that are now available.
May 11, 2024
New Idea Solves Three Physics Mysteries at Once: Post Quantum Gravity
Oppenheim and Russo have proposed the theory Postquantum Gravity that incorporates the randomness of quantum theory and general relativity and includes variables that coincidentally look like dark matter and dark energy.
Jul 01, 2024
Why Bill Gates' New Natrium Reactor is a Big Deal
Billl Gates new company Terropower is building a nuclear sodium cooled fast reactor, dubbed Natrium, that incorporates energy storage using a molten salt reservoir to better serve peak periods of electricity need.
Jul 06, 2024
Time Ran Slower in the Past, Physicists Find
Astronomers have observed the expected cosmological time dilation effect by observing type 1a supernovae. The supernovae appear from Earth to occur more slowly than nearby supernova.
Aug 13, 2024
Crazy New Physics Anomaly: Anti-Matter Helium Detected
The Alpha Magnetic Spectrometer on the International Space Station has detected several atoms of both anti-helium 3 and 4 in Earth orbit meaning it has a cosmic source.
Aug 19, 2024
Energy from Nuclear Waste: Switzerland Approves first Accellerator-Driven Reactor
Nuclear waste is still jam-packed with energy. But there are ways to make use of it that also reduce its radioactivity. So maybe we should think of nuclear waste as a bi-product?
Sep 18, 2024
Near-Collision with other Star Jumbled up our Solar System, Physicists Says
Astrophysicists generating simulations of near stellar flybys during the early stages of the formation of the solar system, prior to the formation of planets, found a set of conditions that produce a near perfect match.
Oct 26, 2024
A New Pattern in Nature
Mathematicians are enthralled with polygons that tile surfaces. But a group lead by Gábor Domokos noticed that nature frequently uses shapes where vertexes are rounded into curves in some parts of the 'polygon' resulting adjacent vertexes being pinched to a point.
Oct 30, 2024
The Strange Shape that Could Replace Space-Time --- Maybe
Calculations of particle interactions using Quantum Field Theory can involve tens of thousands of integrals. Nima Arkani-Hamed's amplituhedron concept allows many of these equations to be bundled into groups so they can be solved more easily.
Nov 04, 2024
Scientists Discover a Law of Natural Laws
Nov 13, 2024
This New Energy Storage Idea Makes a Lot of Sense
Scientists are experimenting with molecules that can be used to store solar energy for use when when the sun doesn't shine.
Dec 03, 2024
This Theory of Everything Actually Makes a Prediction: New Physics in Black Holes
Jonathan Gorard's ongoing work on hypergraphs attempts to extend General Relativity to small distances usually reserved for quantum theory.
Dec 06, 2024
Life Began Much Faster Than We Thought
Scientists compared the genomes of the organisms that have so far been sequenced to find the genes they all have in common which would have existed in the Last Universal Common Ancestor "LUCA" thought to have existed 4.2 billion years ago. They found a surprising large number of genes considering the earth was a ball of lava 300 million years earlier raising provocative implications about the origin of life on Earth.
Dec 09, 2024
Universe Had Two Big Bangs, Physicists Say
Sabine bemoans science communicators who report that the Big Bang is when the matter in the universe formed. It wasn't. Both matter and dark matter formed a bit later and perhaps at different times.
Dec 27, 2024
Physicists Claim They Solved Schrödinger's Cat Problem
Have physicists really figured out how to avoid the superposition of quantum states that will let Schrödinger's Cat rest in peace or go happily on its way with worrying whether it's dead or not?
Dec 31, 2024
Dark Energy Is Not Real, New Data Analysis Finds
The accepted model of the universe that indicates the expansion of the universe is accelerating and the proposal of dark energy to explain it assumes that matter is evenly distributed throughout the universe. That assumption is known to be false because matter resides in galactic superclusters with giant voids in between. An alternative model dubbed Timescape takes the clumpy distribution into account and challenges the accelerating expansion result.

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