Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: cosmology

What Is Time? Mini Universe Created in a Lab Provides Intriguing Answers

Support this channel on Patreon to help me make this a full time job: / whatdamath (Unreleased videos, extra footage, DMs, no ads)
Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath.
Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath.
More cool designs are on Amazon: https://amzn.to/3QFIrFX

Hello and welcome! My name is Anton and in this video, we will talk about the new explanation for what time actually is and a creation of a mini universe in the lab.
Links:
https://journals.aps.org/prresearch/p…
#time #physics #boseeinsteincondensate.

0:00 Experiment that changes how we think about time.
1:30 Measuring the mini universe.
2:05 What is Bose-Einstein Condensate?
3:00 Entropy?
3:50 The problem of time.
5:08 How this was tested.
6:05 Mini Big Bang and the simulation of time.
7:05 Results and what this means for the idea of time.
8:00 Strange observations.
9:05 Implications and conclusions.

Enjoy and please subscribe.

Bitcoin/Ethereum to spare? Donate them here to help this channel grow!
bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4
or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF

The hardware used to record these videos:

Continue reading “What Is Time? Mini Universe Created in a Lab Provides Intriguing Answers” | >

World’s largest particle smasher halts for upgrade to boost hunt for dark matter

The world’s most powerful particle accelerator will shutter operations Monday for four years of renovations to dramatically boost its collision capacity and the potential for unlocking one of the greatest mysteries of the universe: dark matter.

The Large Hadron Collider (LHC)—a 27-kilometer (17-mile) proton-smashing circular tunnel at the heart of Europe’s physics lab CERN near Geneva—has most famously been used to prove the existence of the Higgs boson, dubbed “the God particle.”

In the tunnel, running about 100 meters (330 feet) below the French-Swiss border area, superconducting magnets and accelerating structures propel particles to extreme energies and then smash them together at phenomenal speeds.

Space-Filling Aether Theory Makes Comeback

Learn more about your favourite topics in science in the easiest and most engaging way possible with Brilliant! First 30 days are free and 20% off the annual premium subscription when you use our link ➜ https://brilliant.org/sabine.

In the 19th century, scientists came up with the idea of the “aether,” a medium that filled all of space and allowed forces to travel from one place to another. While this was famously proved wrong by the Michelson-Morley experiment, the idea of the aether made a comeback. The new aether is compatible with Einstein’s theories and could explain dark energy and maybe even dark matter. Let’s take a look.

Paper: https://journals.aps.org/prd/abstract… video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 🖼️ On instagram ➜ / sciencewtg #science #sciencenews #physics.

This video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.…

🤓 Check out my new quiz app ➜ http://quizwithit.com/
💌 Support me on Donorbox ➜ https://donorbox.org/swtg.
📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/
👉 Transcript with links to references on Patreon ➜ / sabine.
📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle…
👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
🔗 Join this channel to get access to perks ➜
/ @sabinehossenfelder.
🖼️ On instagram ➜ / sciencewtg.

#science #sciencenews #physics

Continue reading “Space-Filling Aether Theory Makes Comeback” | >

New Theory Explains How Time Began

For 72 hours, enjoy 15% OFF on all Hoverpens with code SABINE, or click on the link https://noviumdesign.shop/sabine — Free shipping to most countries. Also on Amazon: https://noviumdesign.shop/jTAp1f.

The biggest open problem in the foundations of physics is that Einstein’s theory of gravity, General Relativity, does not cooperate with quantum mechanics. Physicists have tried to solve this issue by coming up with a theory of quantum gravity, but those theories fall apart when you need them most – inside of black holes and at the Big Bang. Recently, though, physicists published a new calculation for the Big Bang, with a theory called quadratic gravity, which lets us skip over quantum gravity entirely, and that could explain the origin of time. Let’s take a look.

Paper: https://journals.aps.org/prl/abstract… mugs, posters and more: ➜ https://sabines-store.dashery.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 👉 Transcript with links to references on Patreon ➜ / sabine 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #gravity This video discusses a new explanation for the beginning of the universe, published in PRL, which addresses quantum gravity and the period before time began. It features a presenter discussing “Asymptotically Safe Gravity” and includes scientific graphics and charts related to cosmological research. This new idea elegantly addresses the origin of the universe and offers a fresh perspective on space time, making it a significant contribution to science news.

👕T-shirts, mugs, posters and more: ➜ https://sabines-store.dashery.com/
💌 Support me on Donorbox ➜ https://donorbox.org/swtg.
👉 Transcript with links to references on Patreon ➜ / sabine.
📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/
📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle…
👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
🔗 Join this channel to get access to perks ➜
/ @sabinehossenfelder.
📚 Buy my book ➜ https://amzn.to/3HSAWJW

#science #sciencenews #physics #gravity.

This video discusses a new explanation for the beginning of the universe, published in PRL, which addresses quantum gravity and the period before time began. It features a presenter discussing \.

Continue reading “New Theory Explains How Time Began” | >

Quantum Paradoxes: 5 Ways to Test the Multiverse | Maria Violaris

Can we actually test whether the multiverse is real? Not just philosophicallybut scientifically?

Quantum physicist Maria Violaris presents five remarkable experiments, from Schrödinger’s cat to Google’s Willow quantum chip, that put the multiverse to the test. Along the way, she untangles two of the strangest phenomena in all of physics — quantum measurement and entanglement — and reveals how a thought experiment designed to test the multiverse in 1985 accidentally launched today’s billion-dollar quantum computing race.

Maria also shares a puzzling thought experiment of her own that overturns a long-held assumption: that you can never communicate across branches of the multiverse.

Join this channel to get access to Maria’s exclusive Member’s Only Q&A:
/ @theroyalinstitution.

Subscribe for regular science videos: http://bit.ly/RiSubscRibe.

Maria Violaris is a quantum physicist and prize-winning science communicator with a PhD in the foundations of quantum information from the University of Oxford. She works on quantum theory research at Oxford Quantum Circuits, runs a YouTube channel and the Quantum Foundations Podcast, and pioneered the use of quantum thought experiments for quantum computing education through her Quantum Paradoxes series at IBM Quantum.

Continue reading “Quantum Paradoxes: 5 Ways to Test the Multiverse | Maria Violaris” | >

Did Physics Just Lose a Brilliant Idea?

🌏 Upgrade your online protection with an all-in-one security app! Get an exclusive NordVPN deal + 4 months extra here ➼ https://nordvpn.com/sabine It’s risk free with NordVPN’s 30-day money-back guarantee!

One of the most popular ideas in physics right now is something named “ER = EPR.” This theory has it that entangled particles are actually linked by tiny, tiny wormholes. Recently, a group of physicists tested the idea – let’s take a look at their findings.

👕T-shirts, mugs, posters and more: ➜ https://sabines-store.dashery.com/
💌 Support me on Donorbox ➜ https://donorbox.org/swtg.
👉 Transcript with links to references on Patreon ➜ / sabine.
📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/
📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle…
👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
🔗 Join this channel to get access to perks ➜
/ @sabinehossenfelder.
📚 Buy my book ➜ https://amzn.to/3HSAWJW

#science #sciencenews #physics

A thermodynamic approach to gravity could explain cosmic acceleration without dark energy

Gravity, the force that attracts objects toward each other, is currently framed by Albert Einstein’s theory of general relativity. This framework describes gravity as the curvature of spacetime, the invisible four-dimensional fabric of the universe.

While general relativity is now the central theory of gravity, it fails to explain some cosmological phenomena and mysteries, such as the so-called cosmological constant problem. This is the unexplained mismatch between the observed energy of empty space and the far greater values predicted by quantum theories.

In a recent paper published in Physical Review Letters, researchers at Imperial College London tried to frame gravity using thermodynamics, the framework that describes how energy and heat transform. Their study builds on a seminal paper by theoretical physicist Ted Jacobson, published more than three decades ago.

The universe should look the same in all directions at large scales, but DESI data suggest otherwise

Earlier this year, the Dark Energy Spectroscopic Instrument (DESI) completed observations that mapped 47 million galaxies across 11 billion light-years, allowing astronomers to better evaluate the large-scale structure of the visible universe. After studying these data, astronomers Francesco Sylos Labini and Marco Galoppo say the universe may not look the same in all directions. Their results, published in Nature, contradict a fundamental assumption in modern cosmology.

At the scale of a single galaxy or local groups of galaxies, the universe clearly appears to be anisotropic, meaning the structure is different depending on which direction you look. In one direction, there may be more void space, while another direction may have a cluster of galaxies.

However, the cosmological principle says that at larger scales, the universe consists of matter that is more or less distributed evenly in all directions. This is based on the Copernican principle, which states that there should be no “special observers” in the universe, meaning that at large scales, the universe should look the same from anywhere else in the universe.

3 Reasons Pilot Wave Theory is The Best Interpretation of Quantum Mechanics (And 3 Reasons It’s Not)

The pilot wave interpretation of quantum mechanics is probably a lot better than you think.

Pilot wave theory makes a bold claim: that it reproduces all the predictions of quantum mechanics while resolving nearly all of its infamously difficult conceptual issues.

And that claim is justified!

But if pilot wave theory is so good, why doesn’t anyone talk about it?

Here are 3 reasons why people should talk about pilot wave theory, but also 3 reasons why people don’t.
———
Patreon: https://patreon.com/ShotsintheQuark?u… Please do consider supporting us! As a team, we’ve put a lot of work into making some top notch new videos for the channel, so if you like what we’ve done, please consider supporting the channel so we can keep this quality going! ———- Shots In The Quark is a physics channel run by me (Dr. Matt Davies). My aim is to explain some of the most advanced, cutting-edge ideas in theoretical physics and philosophy of physics in a way that’s accessible to everyone. Explore my channel @shotsinthequark to find more videos where I take a deep-dive into topics from Relativity and Cosmology to Quantum Mechanics and Particle Physics. ———- If you found this video interesting, then please do leave a like and subscribe to Shots In The Quark! / @shotsinthequark ———- #quantumphysics #quantum #physics #quantummechanics.

Please do consider supporting us! As a team, we’ve put a lot of work into making some top notch new videos for the channel, so if you like what we’ve done, please consider supporting the channel so we can keep this quality going!

Continue reading “3 Reasons Pilot Wave Theory is The Best Interpretation of Quantum Mechanics (And 3 Reasons It’s Not)” | >
/* */