Everything and Nothing: Part 1, "Everything" 4k 

Whenever I have a bad day and it gets overwhelming I always watch these and forget how small we are compared to the universe

Long time ago found out how small and insignificant we are and that nothing I do actually matters for the Universe, so I never had a bad day since then😊

I appreciate this scientist so much, he makes complex things understandable. James Al-Khalili.

Thank you for not playing loud dramatic music in this video... We can actually understand the talking... Thank you!

The beginning of this video itself gave me goosebumps and made me think how small and nonexistent we are at the scale of the universe.

Jim is by far the best when it comes to science documentary

When I was a child in the 1960s I would lay in my bed at night and look out the window at the expanse of night sky that I could see with the few hundred twinkling stars. Suddenly the idea of the enormousness of space and the distances between those twinkles and the unknown of whether there was life out there, would hit me and it was as if I was the only person on Earth; I felt total utter loneliness. It still make me feel that way.

Jim Al Khalili is one of the professors whose video-lectures on cosmology I like and enjoy the most. I have been watching his videos since i fell in love with astronomy physics and quantum physics. i hope he makes more videos.

So grateful to have something interesting and peaceful to listen to after a long day.

The greatest show on science and astronomy ever made. And with that music track... Pure Poetry

All of these programs are being withdrawn from TV, and replaced with footable and crap like Big Brother. None of our kids get the inspiration that they need to learn stuff; and now they are all addicted to Facebook. It is depressing.

Finally. A Big Bang explanation I can understand. For 45 years I’ve wrestled with an infinite universe coming from nothing. This video is the first I have seen that says it is non Euclidean. My teachers could never answer the questions I had about Big Bang. I guess they thought non Euclidean geometry wasn’t important enough to teach. The video says it was posted 1 day ago, but I added this to ‘watch later’ a few days ago. Non Euclidean geometry strikes again 😆

I love watching & listening to Jim

Additionally, and to the GREAT cast of science commentators, I am thoroughly impressed with the thoughts and words of Prof. Simon Schaffer!!! He's a brilliant science historian and makes a charming and memorable appearance here. Prof.Al Khalili makes wonderful casting choices.

Audio cut out for me at 41:26 for about a minute

00:10 The universe is vast and full of stars. 03:50 The discovery of a supernova led to new perspectives on the universe 10:44 Understanding the shape, size, and origin of everything there is 14:00 Herschel's revolutionary telescope design made him famous. 20:14 Henrietta Leavitt's method revolutionized distance measurement in astronomy. 23:06 Edwin Hubble's discovery changed our view of the universe. 27:32 Andromeda contains over a trillion stars 30:50 Space and its properties 36:20 Curvature in higher dimensions 38:38 Einstein's general theory of relativity revolutionized our understanding of gravity and space-time 45:47 Evidence of Big Bang visible on television 50:01 The night sky is dark due to limited light reaching us. 56:39 Exploring the concept of 'everything and nothing'

Wisdom is to know I am nothing , love is to know I am everything , and between the two my life moves - Nisargadatta maharaja

Jim is amazing, so interesting. I can listen to him and Brian Cox for hours

A FANTASTIC DOCUMENTARY 👏... ALWAYS A PLEASURE TO WATCH DOCUMENTARIES BY PROF. JIM AL-KHALIL.

Love your well articulated and informative videos❤ Blessings 🙏🏻

Imagine , if Hubble was alive today, and he was taking a look at the deep field display, i wonder what he would then be thinking about !!!

The sound goes MUTE at approximately 40:25 in and is mute for about 60 seconds right over a crucial bit! It’s a great documentary - please upload again. I want to see that explanation! Keep up the good work!

This guy is fantastic. There are only a handful of people who ive heard of that can explain these topics the way he does. I find myself very thankful fir his existence.

aww, i remember beds on the roof in baghdad. nice memory

This is by FAR the very best documentary film I have come across on the topic of the universe and existence. Really well researched and fantastic story telling. You put an incredible amount of effort into making this. Well done!!!! Can’t wait to see the second parrt

Amidst billions of galaxies, somehow, humans exist to evolve, then return to seek the "origin" of themselves.

Great cinematography. However in 536a.d. something happened and they definitely already pondered this 1000 years earlier. And the Greek computer was dated around 2,000 years ago, which was basically a geared device with the constellations on it. The device helped men travel the seas. Anddd half the Egyptian ruins are exactly aligned with certain stars. I don't think people realize the level of understanding of nature and the universe that people had back then.

Professor Al-Khalili, thank you for illuminating my cranial vault!

1920- Arguing over there being only 1 galaxy. 2020- Lander on Mars! It took humans a million years to use stone as a crude tool. It took a further 50 000 years to shape the stone into tools, yet 5 000 years later we have AI probes on Mars.

Thanks for this great documentary. I keep learning about physics not knowing a single clue about mathematics 😆. That's the beauty of physics I guess

I remember looking at pictures of galaxies from telescopes back in the 60's-70's, and it wasn't till Hubbles 'Deep field' of the early 90's, did my and everyone's imagination of what 'everything' really is all about. It was so much bigger than what I could imagine. That was only the beginning of everything... that I couldn't imagine.

Amazing...that was the greatest suprise in my life.

wow, watching this highlighted to me how insignificant we really are, mind boggling indeed. a great watch, thanks guys

The video produces a melancholy or nostalgic feeling upon me theres no other way for you to appreciate this video but to translate it in a poem I don't know if I will become a child again to escape responsibility in my ignorance I want to talk to my parents who were dead decades ago which before were my source of information I am loss but I don't want to forget to thanks those who makes this video for everyone of us who have the time watching so again thanks for u guys🎉🎉🎉

The best one-liner I've read is by Nisargadatta: All knowledge is ignorance. Sit with it.

The way of presenting facts is really good.

❤Thank you very much yet AGAIN Publisher and Jim . Khalili

If dark matter exists and it's expanding. Wouldn't the constant rate of expansion also affect our own galaxy? Wouldn't our own planets expand from each other? Or is the gravitational pull of our sun greater than that of dark matter?

This looks interesting enough to fall asleep too😁

Jim is really good in explaining science for people like me who are interested in science but have wasted their life by fallowing other subjects. I wish Neil Degras Tyson who by the way is great too took his lectures more seriously and got rid of his comedy style in science.

Imagine our universe being a single grain of sand. On that beach he was on. The Multivetse ❤❤❤❤

This video upload shows that even persons from Iraq are intelegent and know how to tell any thing in a way its professional and enjoyably entertaining....

Andromeda is approaching us.

Thanks so much for this video. I was looking for a coherent explanation of Einstein’s bent space theory. I hardly agree that man’s IDEA of the cosmos is one of its greatest accomplishments but that’s hardly necessary to appreciate this presentation. Many thanks!! ❤

As a kid ..growing up in Bagdad Sounds like a STORY worth listening to

Mind boggling ! It may take years for me to digest. Thanks to all the hard working scientists to discover knowledge. All this knowledge would remain unknown to us masses but for the excellent presentation by professor Jim Al Khalili and his associates & the crew. Am humbled to even be able to comment on such an "expose" of the nature of reality. Many things come to mind; If we humankind can come to a concensus agreement on such complex scientific issues as to the nature of reality why are we unable to come to an understanding as to how to live peacefully. May be we should let scientists come to factual concensus on political and social issues - the resulting, just concensus should govern the world affairs. May be we need a United Nations 2.0 based on scientific facts.

I saw this video about a month ago and this version has lots of bits cut out and bad editing. What's the deal?

Its a pity Leavitt was not allow to continue her work as I am sure she would have continued to make wonderful discoveries.

It is up to 2 trillion galaxys as of a year or so ago, and is probably far higher.

Jim is fantastic

Why is there a Gap in the video? When he's standing on the stairs discussing euclidean geometry, it jumps to a discussion of Gauss's ideas without even saying who Gauss was or what his ideas were. Some of the video has been cut.

Just magnificent !👌 👏 a true piece of art of knowledge!✨️ 👌

Our Sun ☀️ just a speck in the cosmic ocean is something our human brains cannot comprehend yet. ✅

The history of the telescope is more diverse and fun than you let your viewers know. A Dutch guy devised them as spy glasses and an Italian guy turned them around to look at the sky. None of this great story survived your editors

You guys did a great job on the script, however, I'd like to suggest just one small edit to the summary statement at around 51 minutes "and that is why it _GETS DARK_ at night." The explanation you give does not conclude that, but rather, it concludes "and that is why the night is dark" or "that is why it is so dark in the shadow of our own planet+star," because the visible universe doesn't comprise enough stars to illuminate it as brightly as our very close star. The reason _why_ it _gets dark_ at night is because of rotation and the close proximity to our star. Even if we didn't rotate, and only orbited our very close star, the "night" on the other side is so dark because all of the starlight in the observable universe is not sufficient to illuminate it, in comparison to our star.

That's a great start but any respectable RU-vidr already knows this 😊

Subbed to too many W40k channels thought this said everything 40k at first

We may seem small compared to the vastness of the universe, but how do we compare to the number of atoms within our own bodies? A single blood cell contains approximately 1 trillion atoms, and the average human has around 25 trillion blood cells. Mind-blowing, isn’t it? In a way, we are each a walking universe.

I lost sound from minute 40 on. Thanks for looking into it. Amazing content

Great doc

The expanse and the random vacuum of all possibilities. Imagination.....

Everything and Nothing, I am actually enjoying your presentation of the vastness of our Existence, truly enigmatic to think that a little country of my birth is incomparable to tiny speck to it's size like sun , much like the Philippines indeed. Truly Majestic it's guessing about the hidden secret of Egyptian evolved throughout the years. I guess , respect must be given to those who were around long before our time of births.

I watched this video a few days ago How could it be released just 10s minutes ago?

I really enjoyed part 1 of this documantary but the staggering number of ads keeps me from watching part 2. RU-vid is destroying science.

Astronomy is humbling science 😊

Wonderful video by all standards.

Your videos are good but the ads on this are absolutely out of control.

Thats the reason we love him🖤

God is on the other side and here all at the same time ! You are special not nothing...... GOD IS AWESOME...... He created all this ......

Why isn't space extra light and illuminated considering all the sun's that are up there,it's so hard to understand,but still fascinating 😊

What greater wonder is there than what lies beyond what our eyes and thoughtful abstractions can ascertain? I'll tell you with a question. How is it, I wonder myself, that historians have not revealed to us all along our human path the most life-quality-relevant and deeply dark pattern in human existence associated with the presence throughout human history of dark triad personalities in the human population, those wonderful folk that simply, usually deceptively prey upon the rest of us. Humanity's housekeeping must be our priority. We must devote our intellectual and emotional gifts to rid ourselves of the dark triad types that hold back humanity. I rant...because I am waning and care about the rest of you.

Its actually not even close.. all grains of sand times 250.000 (if we are looking for number of exoplanets in the observable universe)

Simply put: Have a million candlepower spotlight from 300 meters from you, and it will light up all the area around you. Observe that same spotlight 5 kilometers away, and all you see is a spot of light in the distance.

Would be really cool to see an animation/simulation of the night sky which shows the stars from only our galaxy.

Fantastic video and thanks for putting it up. There is a section where the audio is cut 40:27-41:10, hopefully this might be able to be corrected.

I feel many people don't grasp how big the universe is by comparing with the grains of sand on Earth. It shows it's very big, but it doesn't compare how big. How many medium size beaches does the universe starts represent? It's the same reasoning to show mankind showed up just in the seconds of the last day of December 31st.

While I enjoy these cosmological based videos, my 50 years studying Einstein's " reality" and especially as he defined in his SRT as much as GR, I think he made a number of mathematical errors, especially in assuming space is "defined" by the matter within it. An (near) empty box 8000 miles square contains no more space than one containing the planet earth and atmosphere. They are of equal size and volume. They are not of equal material density or the compressed field G surrounding the spherical earth within. It is not necessary to assume "matter" defines space, when a universal field (fG) is sufficient. If one thinks of fG as uniform in all directions within a completely empty volume of space, and then see clouds of atoms condensate from tiny edies of disturbance within fG, you get matter condensates, rather like a cloud that becomes dense enough for rain to condense there from. Think of matter as the condensate of gravitational knots and eddies that were the asymmetrical byproduct of some expensive "big bang" or even "semi-static" space into this possible universal fG that where extremely dense (knotted) is where matter appears. It could even be that dark matter is the sum of miniscule sub-atomic quarks being squeezed in and out of existence in such a high rate that it contributed to mass where dispersal is so large it lacks enough local density to be measured directly except by field G influence on larger condensate bodies like nearby galaxies. The point is, Einstein's math on some of these issues described illusions not reality, and especially in a truly mostly Newtonian universe. Consider C (speed of light constant). It can never be measured regardless of its reference frame of origin to exceed 186,320 mi/sec. But that only proves Heisenberg's theory of quantum measurement, not that light speed is fixed and not riding in a totally Newtonian universe. He demonstrated a 4 Dimensional world that includes time. But T is simply an awkward measure of distance covered during some unit of time = velocity x distance, always measured however in the reference frame of origin and only relative viewed by the quantum moment of the detection within the reference frame of its receipt. Einstein's math seemed to define a ^4D universe but displayed in a spherical two D model, somewhat if an impossibility given the three observational dimensions regardless of the fact what we see at greater and greater distances are snapshots of what has already happened in the near to greatly distance past. To me, fqG (quantum field Gravity) can be equally viewed as a pressure force rather than an attractor force. Mathematically it seems much more reasonable than simply pretending space and time somehow become more condensed in the neighborhood of mass condensates like a planet, sand grain, atom, star or galaxy. Furthermore the pesky problems of GR vs QMech seems to disappear when the universal ether is just fqG with matter appearing in the twisted knots of that universal field in all dimensions. Time is irrelevant in this picture and exists as matter moves through the vastness of predefined space, whether space itself is expanding, collapsing or static. Thr concept of time and relative time is a useful tool of thinking that identifies, defines and measure change through some evolution of measurable differences between what was, what is and what is to come. This is ironically and interesting the exact definition of God. Christianity and Judaism recognize the Alpha, Present and Omega, or Jehovah to the ancient Hebrews. It's equally interesting that Mormon Prophet Joseph Smith not only defined in the 1830's the universe Edwin Hubble discovered, but also dark matter, dark energy and a far more massive universe than was then perceived. In any event, I love Albert Einstein's thoughtful works. His contributions to our understanding of light and the photovoltaic effect, cosmology and our universe makes us think. His contributions to atomic physics was enormous. But my senses say we need not go completely into his spooky realm of time dilation and variable measuring sticks when assuming our observations are relative, but not absolute truth in a quantum world. You can measure or predict location, but not both. Heisenberg was correct. It is why C will always "appear" to be fixed in the measuring reference frame as 186,320 mi/sec... But that may not be the Newtonian speed at which it is actually traveling in its own reference frame vector. Wherever the m asurement takes place it is at that reference frames quantum reference point and 186,320 mps. it is stopped and measured, but if it's point of origin n was moving at 120 mps in the same directional vector, it's tensor speed would against all backgrounds be 186,440 mps...but immeasurable everywhere except at 186,320 mps entirely because you can know speed or location and when measuring speed at a location the rate of C is always fixed at 186,320 regardless of it's true relative speed. These are new ways to move closer to a Unified field theory in which the four forces are actually all the same force but manifested in different ways as if they were used to define our physically manifested universe. There ar other physicists that have somewhat similar thoughts on this concept describing simply a 3 dimensioned universal fG in that matter condenses out of pressure knots within the fG~cloud.

I don't see how you can deduce anything when we don't have any idea what size of the picture we have, but we do know we'll never have the full picture of what is out there, I wonder if it is possible to build a space ship a thousand times larger than the space station and nuclear powered, populated with people with the intention of never returning

this was just amazing

why does the sound keep going blank, you cant fill in the blanks when it comes to quantum/particle physics

Why does the sound cut out at 40:27? It doesn't come back until 41:20. It's one of the most interesting bits and the sound cuts out!

Audio cut at 41:26.

There are 2 TRILLION GALAXIES...

Surya siddhanta ... describes positions of sun earth and even timings tilt shift of earth 😅 And that's thousand year old book that remains

Its where but even as a young child of 7, I already knew this, it was no big deal to me, except for the clarity and beautiful pictures scientists took, that they would realize that there were lots of areas in space just like ours. I know it's great that they learned if but its also weird that so many scholars didn't already feel,think,know it innately...weird. Or maybe I'm just weird.

The next great paradigm shift for human beings will be when we realize that what we call matter does not exist, that there is only consciousness. The universe is how universal consciousness appears filtered through the finite mind. Infinite consciousness is dimensionless and timeless .Eternity measured through the finite human mind is what we know as time. (what Carl Sagan said about the scale of the universe with the example of grains of sand, is nothing more than an attempt by the human being to try to measure with a finite mind what is unmeasurable, infinite consciousness)

...many thanks ❤

Faced with this revealing reality of how small we are, will human beings have the will and capacity to eternalize as conscious beings, throughout this infinite space?

And yet many people think we're alone .

It's cool how far ahead of Oppenheimer these renditions of small particles were.

We are the extraordinary insects of space

Think about how much more advanced we would be if half the human population hadn't been oppressed for thousands of years.

Why does sound cut out at 40:28 ?

We wasted our time. Should have been looking down, and concentrated on saving what we have and the only thing we’ll ever have.

We are apart of the all. Not less no more than. The illusion is believing that you are your body and therefore separate from all.

Like I said before, nobody could ever convince me that we're alone.

I have always wondered who counted all the grains of sand on earth to come to this conclusion

And probably all of what we understand amounts to something infinitesimally small, i. e. ...nothing Let us continually be awed by the Infinite Mystery.

Matter EXpands or Space Expands..............intriguing questions in my mind

What's up with the audio?