Secrets of Quantum Physics, 'Einstein's Nightmare' 4k

Quantum physics starts with the 20th century as scientists try to understand light bulbs. This simple quest led scientists on a deep journey.

Professor Jim Al-Khalili reveals how Einstein thought he'd found a fatal flaw in quantum physics that implies that subatomic particles can communicate faster than light. The host of "The Amazing World of Gravity" and "Everything and Nothing" shows how robins navigate using quantum entanglement, how our sense of smell is touched by quantum vibrations, and how physics might play a role in evolution.

[ll]

Ever see Sightless? In the movie the girl is blinded and the world she sees in her head is the opposite of actual reality. Her kidnapper places her in a small room and tells her it's a lavish apartment so that's how it appears in her head, when he brings her a yellow bird she asks if it's blue and he says yes so the bird is blue in the movie, the kidnapper changes his voice and in her mind's eye she "sees" multiple people. In a way she can "see" the alternate waves of probability to change the way the world appears in her mind. Seeing the world makes it forced to be, so as long as the universe is observed we can't see the probabilities but a blind person can create any probability. We're in one beam of the separate slits and can only see the results of that beam but there are at least 5 alternate outcomes or realities, possibly multiverses as real as the one we perceive for every wave of light.

[gangerolf]

May the Gods shine upon thine face. No war and no Trump for an entire hour
Still comercials tho.. You cant winn em all xD

[Johnny_Ultimate]

best science docutainment show since Connections.

[Sort_Stories_by_Abbie]

Yes, there is a link between the uncertainty principle and the bending of space-time in the context of quantum physics. The uncertainty principle, proposed by Werner Heisenberg, states that there is a fundamental limit to the precision with which certain pairs of physical properties, such as position and momentum, can be simultaneously known. In the case of particles like photons and electrons, their behavior is inherently probabilistic, and the uncertainty principle reflects this inherent fuzziness in their properties.

When dealing with particles at the quantum level, particularly in the context of general relativity, which describes gravity as the bending of space-time, the uncertainty principle becomes relevant. The presence of particles with uncertain positions and momenta can contribute to fluctuations in the curvature of space-time, leading to phenomena like the bending of light around massive objects (gravitational lensing) or the behavior of electrons in an electromagnetic field. These connections highlight the deep interplay between quantum mechanics and general relativity in understanding the behavior of fundamental particles in the universe.

[MariaGrade-mwmq]

I enjoyed the video... Only we are now in the 21 century and Science has much advanced... What's with morden Science.. For example The Universes.. Connected to one another... And how..? 😂❤

[azlanameer]

Never mind if the video is 10 years old. Its enjoyable reality for me right today(quantum physics)😊

[EchosofTime]

I have watched countless of documentaries about quantum physics and this one finally made sense to me.

[hadrianblackwater]

Why is Bell's formula presented at 46:45 <=1 but when doing the experiment is <=2?

[wwzz]

It exists only when we measure it and we know it exists only when we measure it are two completely different propositions. Forgive my lack of the ability to connect two things without step by step reasoning, I can hardly see what the interchangeability of wave-particle has to do with the question of reality. More study is needed.

[skybellau]

I grin all the way through Jim's physics vids they teach us what only academics could comprehend a decade ago. Simply superb 🙏

[electwater]

When experimenting with single electron at a time around 27 minute, doesn't the result means that time means nothing at electrons levels and below-quantum level? Otherwise, how the interference pattern can be explained?

Then if time is zero, hence by analogy distance is zero as well to solve the entanglement problem.

Conclusion, both problems are solved and no more work for the physicists.

Can somebody explain?

[isatousarr]

Quantum physics delves deep into the fundamental nature of reality, revealing a universe where particles can exist in multiple states simultaneously, only settling into a definite state when observed. This mind-bending reality challenges our traditional understanding of matter, energy, and causality. Meanwhile, quantum psychology takes these principles and explores how they might influence human consciousness, perception, and even the very nature of thought itself. Could quantum mechanics, with its probabilistic nature and concepts like superposition and entanglement, offer new insights into the complexities of the mind and consciousness? Quantum psychology proposes that the mind might function in a similar way to quantum systems, where thoughts and emotions are not static but exist in multiple potential states until we focus on or "observe" them, shaping our experiences and decisions. Furthermore, if consciousness is interconnected at a quantum level, as some theories suggest, could this explain phenomena like intuition, synchronicity, or even non-local interactions between minds? How might the probabilistic and non-deterministic nature of quantum states relate to our subjective experiences, mental processes, and even free will? As both fields evolve, can the marriage of quantum physics and psychology offer us a deeper understanding of human consciousness, going beyond the boundaries of classical neuroscience?

[timeconstrained]

still have no idea about Bell’s theorem. Went straight over my head.

[brightphoebesays]

The quantum physics crisis makes me at once feel both unstable and full of potential. I don't like how reality is made of nothing, yet there's so much possibility there. It could drive one quite mad.

[ThomasFerner]

This reminds me of a movie I watched. ...There was a character that could become invisible BUT ONLY if nobody was looking at him !

[DavidNicoSalz]

Hi I really appreciate your work. Thanks! What I am really mesmerized with every time is, why do the quantum world look strange to us. While my life is, as I found the hard way, totally unpredictable and govern with probabilities more then my predictions, people still lean to the deterministic way of thinking about their lives and be shattered when it doesn't work. Long way to go...😉

[chadpittman]

There is a constant in all this. the universe, and the planets and stars. It is only consciousness that dissipates.

[jstore]

I'd be so much happier in life without this as a suggestion for something to watch for the 30th time. Find another target yeh? Thanks.

[scandalouslando]

Jim Al-khalili has several docs on this topic and they are all amazing.

[blijebij]

Beautiful video&great explaining, enjoyed it a lot! The quantum world might not be strange at all; it's just that our perception, conditioned by the human scale, tends to judge things in a quite linear way in general.
See it more like this: Reality, at its foundation, must be universal in transcription.

Furthermore, the quantum state could serve as a universal key for translation and description, implying that the principles governing quantum mechanics may offer the foundation for understanding reality across all levels.