I'm glad that I happened to read your comment. I only listened to this presentation. My phone was on autoplay. It was great without visuals. Very interesting. Going to replay and watch this time. Thanks.

Believe it or not, it's the guy who wrote the content. He did everything except narrate it. Name's Alessandro and he is mega talented. I found this out yesterday when I asked myself the same question.

or a relative hero

This was my exact thought as well. These are very well crafted explanations with very intuitive illustrations

I can think of a few, but yes most definitely.

No. Its nonsense. Check out skyscholar and learn .

It's a relatively (get it?) new channel tho, give it time

I came to comment section to write the same

That...is the best way to describe it. Wow. Thank you.

Couldn't have said it better.

Watch skyscholar and thunderbolts project. All your connections will vanish.

@@thephuntastics2920 Now why is that?

this comment is a year old but i had to comment... I love how you put that, "Knowledge Islands". I've always thought about this but have never put it to words. You're right too, this channel has a way of land-locking these islands together with amazing visual representations. Very good. I'm happy our islands met, so long as time ;)

Thank you very much ! Sharing helps a lot, the channel is still quite new, glad you like the videos !

@@ScienceClicEN I think this is the first series of videos I actually share with my non physics loving friends. Great visualizations indeed. Im just going through it all but i think you can really reach the masses with these. Keep going.

I use to watch the other channel (the one in French). The narrator’s voice seems different... is it the same narrator or a different guy ?

​@@ScienceClicEN You gave quite some incorrect/outdated information. First you mixed up the effects of the black hole and the singularity. Nothing escapes the black hole because space itself is being dragged into the singulairty. The mass around the singualrity is immensly dense which is affecting space time but then the space itself is being dragged into the singuality. Destroyed, dragged infinitly down in a ring like point but never converging or being inflating out somewhere on the other side like a new inflating universe - nobody knows but space or spacetime as you call it is being dragged into the singularity. You did not explain this. If i recall inside the black hole closer to the singularity the frame drag is moving space into the singualrity faster than the speed of light. And yes you can orbit a spinning black hole with stability. There is a certain distance from which this is possible and it actualy quite close. . You can use the frame drag as a boost to stop you from being pulled into the black hole - again only from a certain distance but it is much closer than you think. Angular momentum blah blah blah. it is even possible to use the black holes spin to free yourself from its gravitational pull once you are beyond the event horizon. You use some energy at the correct moment and in return you leave the black hole with more energy then going in. Black hole bomb, as they call it.

@@ScienceClicEN loved it

Fart!!!...

Can u recommend some others that u watch ?

@@cadence_wav2423 hey if you still look out for other channels I can recommend PBS Spacetime. in some ways similar, with less animations thouh. The topics explored are partially a bit more based on the effects of discoveries and smaller parts of theories rather than giving an overview over the basic concept of a theory.

Yes I to hate how they always show gravity being on a flat surface pushing a ball down on a rubber sheet instead of being in the center of an internal object called the universe.

Damn! Someone finally said it! I totally agree with you on how majority of science videos visualize the space-time, gravity, etc. as a flat fabric. This is one of the reasons why my imagination can't get a full grasp of how gravity works before! People would say that it's always shown in a flat surface so people could "better" understand when I think it only creates a misleading illusion for normal folks that gravity is flat surface.

except is was all nonsense, cant you figure that much out?

@@everythingisalllies2141Einstein predicted that the light of a star near behind the sun would bend toward it before coming to the Earth…and during a total eclipse his theory was tested and photographed…it’s all well known…

Yes, that irritated me too!

not to mention it is highly missleading letting you to believe that space itself is curved around the planets while it is the spacetime continuum that is curved not the space itself. if the space itself would be distorted our bodies would get distorted depending on the altitude measured from the reference planet.

@@llucianf Space itself IS curved. Space is part of spacetime. All four dimensions are curved, including the 3 spatial dimensions.

@@pasijutaulietuviuesas9174 do not be ridiculous my friend. if space would be curved your body would be curved as well.

@@llucianf You just said that spacetime continuum is curved. That includes space as well. And no, bodies don't necessarily have to curve. Space is also expanding in all directions, but we're not inflating. That is because the electromagnetic force that binds us together is simply stronger and resists distortion.

Everything and nothing at the same time

Chuck Norris' dream

An audition.

Thanks ! Hope too :)

These are one of the best videos I've come across that explain the concepts visually and in a very lucid manner. Awaiting more videos covering numerous other concepts! Great work!

very accurate, I'm a 12-year-old, and Love it! especially the one about black holes...

I understood almost everything in the video i guess and i have seen like hundreds of videos on this but I cant understand like why cannot mass stay stationary. Like I get why it bends towards large masses because of curvature but why does not the body stay stationary instead of travelling in a straight line? Like if we put a body near earth i understand why it would bend towards earth if it is moving but why would it start moving through space in the first place? I mean I get why a body moving towards larger masses will bend towards the larger mass when but if it is not moving then why would it start its motion through that curved curvature if gravity is not a force?

​@wholesomevideos7749 Because of the time dimension. The bending of space isn't best analogiesed as a sort of slide for matter to fall on. Because, then what would actually be pushing the apple in that direction in the first place? What I like to imagine is just like what was shown in the video​ at 7:13 now picture this grid, but on any open free space on any of the lines, put a dot in that space. These dots are "events" or the flowing of time, for every dot that hits the surface could indicate a nano second or whatever amount of "time" you wish to exceed. The bending of space is constant and continuous. So if you had an apple in a complete vacuum, It would still be moving in time, the apple is moving through those imaginary dots on a universe of never ending overlapping grids. Each grid could be a second in space, if the grid is untouched and the lines are completely still, then for every second, the apple from left to right will hop from grid to grid. From a 2d perspective, it appears to be still. Imagine that the universe moves with time, this universe was not the same universe 1 second ago. Every hop to a new grid is a new line in the space time fabric. When you are moving through space on a curved line, it's still a straight line in time. So the apple is just moving in time like it would in any other spot of the universe, but now the straight line of space it normally rides, is curving towards the center of the earth. This line is still "straight". Imagine like how satellites move around the earth. They move in straight lines to the left or right of the earth, but the curvature of space time bends those straight lines around the earth. The same thing applies to the TIME dimension. Time moves objects through the progression of the universe, if unaltered, this'll be just a straight line into the future, like if you just held an apple in your hand. But when the straight lines curve, the future is still at the progression of those lines, it's just that now those lines are going towards the center to the earth. So "gravity" is an object moving through space with the propulsion of time. Because space bends, well then so do the trajectories of objects in space-time. I hope this makes sense, it's kinda hard to write it out.

True

I loved Veritasium's video but this one was the one that really gave me the understanding, instead of just the knowledge :)

You can't do my man dirty like that bro Watch both

Why put him down? What is your problem?! Both are great channels who do an amazing job explaining these complex topics!

Kids level Veritasium , I’ve stopped watching him ages ago 🤦‍♂️...

Wouldn't a negative temporal velocity mean going backwards through time? Then yes it would cause a repulsive force but we travel forward in time so it wouldn't look any different to us observing it.

@Bainsworth Do you want to clarify?

Yes thats true. Person himself doesn't feel the time slowing down or going very quickly. This thing about time being slow i.e. time dilation is a very relative thing. That means you yourself doesn't feel like time is passing very slow for you. Even on blackhole one feels as normal (if they don't die!) as they are on earth. But time is definitely going very very slow for you AS COMPARED to the person living on earth. Means if a person on the earth can see you live, he will observe you motionless on blackhole, because time slowdown to almost to zero due to the tremendous gravity of blackhole. Similarly if you can observe the person living on earth live from the blackhole, you will see him going fast forward with very very much speed. May be you will see them living their whole life or even generations passing by in just one second of yours.

I agree with your observation. Visual thinkers are turned off by mathematical equations.

Thank you! Glad you liked it :)

No beware, on the Earth the vertical direction (latitude) represents time, and the horizontal direction (longitude), represents space. So speed on the Earth if analogous to speed in spacetime, not speed through space. When you have two objects that move with differents speeds through space, it corresponds to trajectories with different orientations through spacetime (see spacetime diagrams)

Thank you very much !

@@ScienceClicEN do you have a Twitter account? I’ve only found the French version of @ScienceClic. Please open one. I want to follow you

For the moment I tweet mostly in French so I don't think I'll open another account right away, but I think Twitter can automatically translates tweets if you still want to follow

such nonsense . Its all electric.

@@thephuntastics2920 so you are a flat earther I guess.

@@thephuntastics2920 another electric Universe nutcase

@@thephuntastics2920 what makes you say that, can you explain , I'm just curious

@@sanketvaria9734 May you explain it more brother I have same doubt , how rest object get attracted

Watch his video on why we all move at the speed of light

4:30. no sorry but that is a nonsensical presupposition, there is no reason why a massive object would distort space around it, it would DISPLACE not distort.

It cant. Spacetime is just dimensions where quantum fields could be found . But the quantum fields shouldnt be limited to just this . I mean , we can imagine a Universe where spacetime doesnt exist but the quantum fields should still be there .

@@cazymike87 but quantum field is about events, and with no spacetime there wouldnt be any event. they are just there floating about

An ideal form

i don’t know if you’ve found your answer or if you’ve seen this video from the same channel already but the explanation and visualization in here kzfaq.info/get/bejne/fbeKZrVpls_ddWQ.html were really eye-opening for me!

this is because time, just like the 3 space dimensions we know is a dimension that everything moves in and when the grid is curved it curves the temporal dimension as well as the 3 space dimensions

thank you very much !

I know that is what hooked me on this channel too.. that beautiful, dark, droning, electronic music, similar to how Vangelis' music worked so well on Sagan's Cosmos.. It makes things connect on a higher level.

@@scratchmoney👍🏻

Yeah that's the same issue I was having with him saying it's not a force. If you don't want to call the attraction between mass a force you would then need to call the bending of space/time a force. Gravity is still a force just one that bends space/time instead of attracting massive objects.

I see your point and believe it to be true as well but couldnt the other perspective to it be something like 'the two stationary objects will move towards each other in a straight line due to the curving of spacetime around an object with mass'?!! I literally see both points equally valid but I'd like to hear your thoughts on this pov

Dude. Being "at rest" is relative to your frame of reference. You might look at two objects and declare them to be at rest, but that's on earth, and if I'm observing from the sun, to me, they're careening through space at breakneck speed along with you and everything else on the planet. If two objects are at rest relative to each other, they're the same as the example with two people moving in parallel lines.

Glad you like it !

🙏

@@ScienceClicEN No . . . 🙏 to you

Best video of the year!

just pick up a differential geometry book dude, it becomes way easier to understand it