We all move at the Speed of Light

Рет қаралды 1,197,599

Күн бұрын

Is it possible to go faster than the speed of light? Would this mean going back in time? What is so fundamental about this precise speed? Answers to these questions in 12 minutes!
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Alessandro Roussel,
For more info: www.alessandroroussel.com/en
_
To learn more :
en.wikipedia.org/wiki/Speed_o...
en.wikipedia.org/wiki/Spacetime

Пікірлер: 3 400

@daviddlamini4290 3 жыл бұрын

This has made me truly understand why time is a dimension

@mlucasl 3 жыл бұрын

Not in all theories, time could not be a dimension, but a mix of many. Time could be a variable dependant over space-time. Is not truly know any much of this, and building over it is where many theories come over (like strings). Time could not be an independent dimension (like in a differential equation), because density and speed could "influence" time, taking into account that falling (through gravity) is also partially speed. The previous could talk of 5 dimensions (and 9 in some string theories), where time is co-dependent. But wait... if you take 3 axis dimensions and "rotate" them 45 degrees, or transform them into polar nomenclature, you get 3 other dimensions, so yes, as time could be an equation over density, density could be an equation over time. All these theories build over space-time, and space-time is different from space, and time. Also some errors in the video, antimatter doesn't go against regular physics, antimatter follow the same rules of gravity and not of negative gravity, what is investigated is the bast space of the maybe existent "black matter".

@mlucasl 3 жыл бұрын

"The overwhelming consensus among physicists is that antimatter has positive mass and should be affected by gravity just like normal matter. Direct experiments on neutral antihydrogen have not been sensitive enough to detect any difference between the gravitational interaction of antimatter, compared to normal matter". It could be that antimatter has negative mass, but is not a consensus neither an empirical test.

@mlucasl 3 жыл бұрын

@Allen Why? Because there is not a consensus on whether anti-matter has positive or negative gravity. Or because there is not a consensus even on string theory. Or maybe that there is not even a consensus on whether time is a dimension to not.

@user-fn5sy6kh9v 3 жыл бұрын

The fun part is that it is not. You can totally see in the video that time is a property of observer and is relative to it. E.g twins paradox - two different time "points" in a single space-time "point" because there are two observers. The other dimension is not time as we see it. It's something completely opposite.

@mlucasl 3 жыл бұрын

@@user-fn5sy6kh9v but yet again, any dimension can be distorted. And having 2 reference is not a proof or disproof of it. Even space (as dimension) can be altered near dense objects. So you could argue that space too is not a dimension, the reasoning behind (space-time continuum); hence you end with multiple hypotheses. The most acclaimed is space-time but is not the only one. And there is no full consensus as there is no consensus over anti-matter having 'anti-gravity' (that here is taken for granted).

@AntonFetzer 3 жыл бұрын

I have been studying physics at university level for 7 years now and this just blew my mind. None of my lectures ever managed to make relativity understandable. I have always just accepted the math and moved on, but you managed to explain spacetime without using any equation or symbols at all !!!

@oluwafisayo3676 3 жыл бұрын

It's really impressive. I feel like they just unlocked my brain.

@lorenzoh.6571 3 жыл бұрын

The channel is using the visual format to its maximum. Then the narration explains the visuals so they don't have to show the abstract equations. Very impressive

@samuelegbosimba6221 3 жыл бұрын

@Allen Shut up dumb prick.

@Trancecend 3 жыл бұрын

PBS Spacetime could learn a thing or two from this channel. Their videos always relies heavily on the math, which will elude most people except those with a university degree in physics or math.

@lorenzoh.6571 3 жыл бұрын

@@Trancecend that's a good thing. We can start learning about the concept on this channel then learn more details on the other channel. Like there are levels to understanding something.

@MichaelLloydMobile 2 жыл бұрын

Fascinating. This is the best explanation I've heard of space-time. Outstanding!

@karlsjostedt8415 2 жыл бұрын

No explanation at all IMO. Just a step by step of conclusions, no explanations for any of the conclusions... Edit: he lists what we can expect to observe with no explanations as to why...

@macysondheim Жыл бұрын

Heard way better explications than this. Wasn’t impressed…

@helifynoe9930 Жыл бұрын

If he would have continued onward and added length scalars to the graph, he could have shown how to derive the SR equations from it, as did I in my videos 8 years ago. Sadly, over the years, they don't get much attention.

@mr.objective6936 Жыл бұрын

Macy - can you reply with links to those “better” videos ? But if this is one of those feeds that shadow bans posts with links (you can see it but no one else can), can you just describe the link ?

@babayega_ Жыл бұрын

@@mr.objective6936 the gentleman above you who commented has a 9 part series that explain things very well.

@minnieroff12 2 жыл бұрын

I have never understood “time” when it comes to space time. I’ve watch a ridiculous number of physics videos on the subject trying to explain it. This is the first one that makes sense to me. Thank you!

@djnone8137 Жыл бұрын

Time is a metaphysical tapestry on a loom...

@fanatamon 11 ай бұрын

Watch the time = causes gravity video quite interesting.

@TheMacster555 8 ай бұрын

Me too!

@literallynothinghere9089 7 ай бұрын

link?@@fanatamon

@Mavrik9000 5 ай бұрын

0:05 *Introduction* - The introduction explains that while the expansion of the universe can accelerate objects faster than the speed of light, this is not true movement. It is due to the underlying expansion of space itself. 0:51 *Special Relativity* - Special relativity shows that as an object's speed increases, its time slows down compared to a stationary observer's time. At the speed of light, time would stop. However, one cannot go faster than light or go backwards in time by going faster than light. There is a curve connecting speed and time, not a straight line. 3:37 *The Circle* - The curve connecting speed and time is a quarter circle. All objects in the universe lie on this curve. Negative speed just means movement in the opposite direction. It is impossible to go beyond the speed of light or 100% normal time flow because objects are confined to the circle. 5:53 *Speed of Light* - The speed of light is fundamental - it is the speed all objects move at in space-time when considering both space and time. It is a universal constant. 6:20 *Speed of Objects* - Objects cannot exceed the speed of light because they always move at the speed of light in space-time. What changes is how their speed is distributed between space and time. Slow objects give more speed to time, fast ones like light give it all to space. 8:15 *Antimatter* - The lower part of the circle corresponds to objects going backwards in time. This provides a basis to postulate the existence of antimatter particles. 9:23 *General Relativity* - In general relativity, gravity is the curvature of space-time which converts temporal motion to spatial motion. Near black holes, an object's circle becomes smaller until at the event horizon it has no room left for motion. From a distance, objects appear frozen at a black hole's surface.

@henrytjernlund 3 жыл бұрын

Cop: Do you know how fast you were going? Driver: Yes, the speed of light. like I always do.

@alwaysdisputin9930 3 жыл бұрын

Cop: Do you know how fast you were going in the spatial dimensions? Driver: yep 30 mph* *relative to a car going 130 mph in the same direction

@vodyaoriginal8543 3 жыл бұрын

Pay attention, bro - u never were or will be going with c, until u find universe with no gravity.

@tmst2199 3 жыл бұрын

In relation to the fixed stars?

@DPedroBoh 3 жыл бұрын

The same as you, officer, the speed of light. Haha, we both laughed, he fined me and took my driver's license.

@tonymurphy2624 3 жыл бұрын

Cop: Do you know how fast you were going? Heisenberg: No, but I know exactly where I was.

@darthnihilus511 3 жыл бұрын

Absolutely the best description of space-time lightspeed and gravity I have ever seen.👍

@karlsjostedt8415 2 жыл бұрын

Description is an apt word because there is no explanation, just a list of what to expect according to what we know.

@pitts8rh Жыл бұрын

Every one of your videos that I've seen to date has filled gaps in my understanding of special and general relativity. There is something genuinely unique about your presentation and pacing that carries the viewer through every incremental step of the thought processes that others often assume are obvious and skip over or don't explain because they don't entirely grasp themselves. I find the animations and narrative to be spot-on, and I am looking forward to watching all of your presentations. Thank you for the immense effort that it takes to produce these.

@AZ-bm3ki 2 жыл бұрын

I am genuinely grateful for this channel. No other channel comes close in explaining complicated scientific phenomena with such clarity

@bigpompano1659 3 жыл бұрын

Best visual representation of relativity I’ve yet to come across. SpaceTime could take a few notes

@tim40gabby25 3 жыл бұрын

Complimentary

@guyedwards22 3 жыл бұрын

That last bit about the spacetime interval's distribution contracting down to nothing at the surface of a black hole sent shivers down my spine. I've been very familiar with interpretations of hypothetical phenomena surrounding black holes for years, the apparent "freezing" of an object falling in being one of the first I learned about. That connection with how spacetime curvature affects the spacetime interval was just perfect, meant to be, and makes so so much sense. The universe is utterly alien and insane.

@sandre_sandre 2 жыл бұрын

Brace yourself then: kzfaq.info/get/bejne/atiEqZyo29zFpGw.html and kzfaq.info/get/bejne/Z52keMqQ2rqqj3U.html for the VR version!

@-_Nuke_- Жыл бұрын

That's because a black hole is literally the edge of the Universe. One its edges, because it can have infinite of them.

@romanski5811 Жыл бұрын

Does the circle contracting near massive objects mean that the maximum temporal and spatial speed of that object is decreasing?

@TheLazyVideo Жыл бұрын

I literally weeped when watching this. It’s so beautifully done and so incredibly easy to understand. I feel like Algernon in Flowers for Algernon when he finally understands things. Bravo, sir.

@Sunkan2000 2 жыл бұрын

Ive watched a lot of videos about space time as well as studied it for years in school. This video still gave me new insights, thank you!

@-Pexy 3 жыл бұрын

Definitely my favorite physics video. For literal ages I've been trying to understand the concept that everything moves at the speed of light, and I just understood it with no problem in some random 11 minute video. Absolutely insane, amazing content, I hope I see more videos like these.

@solaris867 Жыл бұрын

Everthing do not move at the speed of light,

@howaretherenousernamesleft Жыл бұрын

@@solaris867 what are you talking about

@aarondyer.pianist Жыл бұрын

This video was so brief, so clear, that it passed into the bottom half of the circle and seemed to be false.

@damianmedina8888 Жыл бұрын

Honesty I feel I could create my own time machine from all the knowledge in your videos, simple the best.

@BD-np6bv Жыл бұрын

This is why people believe conspiracy theories and are easily brainwashed. LoL

@Shaunmcdonogh-shaunsurfing 3 жыл бұрын

Can’t wait to binge watch this entire channel. Keep it going!

@ScienceClicEN 3 жыл бұрын

Thanks ! Hope you'll like future videos

@DunkelStern 3 жыл бұрын

You need to be writing on your videos the sountracks ))

@tophater04 3 жыл бұрын

That's what I been doing the last couple of days.

@ViciousViscount 3 жыл бұрын

That's what I already did. It's a good channel yo.

@MrBendybruce 3 жыл бұрын

The only thing that makes me sad about this channel is if I post a link to it on my fb feed it might get 1 like but if I post a picture of a cat using a human toilet it will get hundreds. Social Media is where curiosity and brains go to die..

@alexy93 Жыл бұрын

i have seen vast amount of videos about this subject, but never gotten a more clearer explanation than this video. congratulations and thank you.

@TheToffeyman 3 жыл бұрын

Man i predict that this channel is going to go viral pretty soon, there's no way an explanation like this one will go unnoticed forever!

@24emerald 3 жыл бұрын

I know right? ... best one I've ever seen too.

@ramsesrameez5430 3 жыл бұрын

Kareem who...??

@TheRainHarvester 2 жыл бұрын

You may really like a 2 min video I made, "the physical reason time slows at the speed of light". I've never seen an explanation like it.

@akbarkhonvariskhanov6618 2 жыл бұрын

No. Simply because his voice is monotonic and boring. The content is good, the delivery is subpar.

@i7Qp4rQ 2 жыл бұрын

No, people are lazy and seek pleasures.

@ris3326 3 жыл бұрын

-Can we travel at the speed of light? -Wrong question. Can we not to?

@Will-be-free 3 жыл бұрын

All we have to do to travel really fast is to stop time. Now I'm just waiting for the battery in my watch to run out. Only problem is that when you are waiting for something, it takes an eternity before it happens.

@solapowsj25 3 жыл бұрын

What happens at warp speed at near the speed of light is an interesting matter by itself.

@sheetzTime 3 жыл бұрын

@@solapowsj25 At speed of light , interesting or not - there is no/infinite "matter"

@wailer27 3 жыл бұрын

just get back to the kitchen, fiona

@solapowsj25 3 жыл бұрын

@@sheetzTime Warp speed is slower than speed of light. Warp is phenomenon in space related to standing waves before and after the craft at very high speeds. The laser craft, photon sail, and ion engine crafts would have to travel in warp space because they go very very fast ⚡⚡⚡⚡.

@jerrypolverino6025 Жыл бұрын

I understood spacetime before I watched this video, but this is one of the most simple, concise and simple explanations I have witnessed. Well done. I just subscribed.

@darkknight097 2 жыл бұрын

Man I love these videos. They give me a completely new level of understanding of concepts that i thought I had an idea of and ties them all together nicely.

@gamalipi 3 жыл бұрын

This is by far the best video i have seen about relativity. Understanding it was an amazing experience and through visuals and crystal clear explanations, its hard not to grasp the idea that A. Einsteind left us. Thank you so much

@new-knowledge8040 3 жыл бұрын

Plenty of folk seem to hate my relativity YT videos. The idea was to show how just about any Joe Blow can discover SR. You just have to analyze "Motion" to determine what it is that is required to make motion possible. Before you know it, you end up independently deriving the SR mathematical equations. I'm a high school dropout, and in turn I had no physics background education at all, but I managed to do it. But some dingbats say that I am just bragging, and thus they miss the whole point of the video. It's about thinking in an independent manner. Granted, I did achieve this after being in a semi-coma for eight years. The semi-coma was due to me having a severe case of hypoglycemia. Those years really sucked. I could no longer spell my brothers name, and if you put 3 med pills in my hand, I could not tell you how many were there, all this was due to me no longer being able to recognize quantities greater than two. I no longer knew which was my right hand nor which was the left, and I did not have a clue which hand held the fork and which hand held the knife, and so forth. The automatic eye focusing no longer worked, and my pupils took up to 2 hours to respond to a change in light intensity. I could still type, but slowly, and only do so with one finger, since I no longer could coordinate and control both the left and right hands simultaneously. And the list goes on and on and on..... Anyhow... .......

@xolaniholomisa841 3 жыл бұрын

That whole idea about all objects traveling at the speed of light and only distribution their motion to space or time blew my mind! I could never get my head around why or how we came to have ‘c’ Thanks and keep up the great work!

@lorenzoh.6571 3 жыл бұрын

We should all run as fast as sonic to extend our lives lol

@ebaderman 3 жыл бұрын

Lorenzo Halevy no point becaus to us it would fee exactly the same

@kliersheed 3 жыл бұрын

@@ebaderman well if you are fast enough you are slowed down compared to your surroundings so they could cum up with new inventions to extend your life, so he wasnt wrong but probably didnt mean that :D

@gregorygrandjean2895 5 жыл бұрын

Nice, now all the world will be able to profit of the quality and the teaching of this channel !

@ScienceClicEN 5 жыл бұрын

Haha thanks ;)

@ossiedunstan4419 3 жыл бұрын

This channel is not a science channel it is pseudo science channel devoted to shitting on science and scientific method. If he continues I will be getting this channel banned in my country for promoting. wikki is not a got to site for scientist's , it is the go to a site for imbeciles who cant read scientific papers. Wikki is where religion's go , flat earthers , ufologist, alien abductor's, because wikki has no truth filter. When I want science I go to a places that aCTAULLY EMPLOY SCEINTISTS NOT A FUCKIGN WEBLPAGE WHERE ANY ONE CAN MAKE CHANGES TO ANYTHING. Places like SETI. perimeter , etc etc. I only come to pseudo scientific sites like this to object to the child abuse they are willing committing.

@gregorygrandjean2895 3 жыл бұрын

@@ossiedunstan4419 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⣠⣶⡾⠏⠉⠙⠳⢦⡀⠀⠀⠀⢠⠞⠉⠙⠲⡀⠀ ⠀⠀⠀⣴⠿⠏⠀⠀⠀⠀⠀⠀⢳⡀⠀⡏⠀⠀⠀⠀⠀⢷ ⠀⠀⢠⣟⣋⡀⢀⣀⣀⡀⠀⣀⡀⣧⠀⢸⠀⠀⠀⠀⠀ ⡇ ⠀⠀⢸⣯⡭⠁⠸⣛⣟⠆⡴⣻⡲⣿⠀⣸⠀⠀OK⠀ ⡇ ⠀⠀⣟⣿⡭⠀⠀⠀⠀⠀⢱⠀⠀⣿⠀⢹⠀⠀⠀⠀⠀ ⡇ ⠀⠀⠙⢿⣯⠄⠀⠀⠀⢀⡀⠀⠀⡿⠀⠀⡇⠀⠀⠀⠀⡼ ⠀⠀⠀⠀⠹⣶⠆⠀⠀⠀⠀⠀⡴⠃⠀⠀⠘⠤⣄⣠⠞⠀ ⠀⠀⠀⠀⠀⢸⣷⡦⢤⡤⢤⣞⣁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⢀⣤⣴⣿⣏⠁⠀⠀⠸⣏⢯⣷⣖⣦⡀⠀⠀⠀⠀⠀⠀ ⢀⣾⣽⣿⣿⣿⣿⠛⢲⣶⣾⢉⡷⣿⣿⠵⣿⠀⠀⠀⠀⠀⠀ ⣼⣿⠍⠉⣿⡭⠉⠙⢺⣇⣼⡏⠀⠀⠀⣄⢸⠀⠀⠀⠀⠀⠀ ⣿⣿⣧⣀⣿.........⣀⣰⣏⣘⣆⣀⠀⠀

@larsalfredhenrikstahlin8012 3 жыл бұрын

@@ossiedunstan4419 Cool story bro

@ascaniosobrero 3 жыл бұрын

@@ossiedunstan4419 Which country is yours? Atlantis? Mu?

@jonahrumsey2247 2 жыл бұрын

this channel always gives me so much more insight and understanding than any other channel. criminally underrated!

@MehrdadParthian 2 жыл бұрын

So we all, at all times have the speed of light, but when we want to move in space, we convert our temporal time into special time when in the beginning all of our speed was stored in temporal time. This is so amazing to understand. Thank you for this amazing and easy to learn video !

@Doct0rLekter Жыл бұрын

Indeed! It’s also good to understand the relativity part of this equation though: this is only how things are relative to a given observer. Our positive spacetime movement, for example, would appear to be negative relative to an antimatter version of us. It boggles the mind how complex this can get but I’m blown away by how simple this video made it seem.

@-_Nuke_- Жыл бұрын

Yes its brilliant!

@dennis-o Жыл бұрын

@@Doct0rLekter, you wrote “Our positive spacetime movement, for example, would appear to be negative relative to an antimatter version of us”. This is not quite correct. If your antimatter twin is at spatial rest wrt point A and you are in positive spatial movement wrt point A, your twin will actually see your spatial movement as positive. Temporal movement is where things will be different. Your antimatter twin will see you as moving in the temporal direction opposite to to their own.

@djnone8137 Жыл бұрын

@@dennis-o your antimatter twin twin will only see both you moving or not moving but it takes an observation to display such decision.

@fanatamon 11 ай бұрын

And Karens convert their time into complaining. What a waste.

@fstkpfls 3 жыл бұрын

This channel is mind-blowing. I've watched a lot of videos about relativity and spacetime, and i just accepted that I couldn't understand it without getting into the mathematics of it, but the models you're using are so intuitive and fit perfectly into what I had learned so far. How is this the first time I'm seeing this circle?

@Deciheximal 2 жыл бұрын

Because it's not a circle. The video maker abuses the shape for the purposes of making an attractive video. At best, it's a rounded square. Google graph speed of light vs speed of time, you'll see a rounded corner shape graph, which you can then mentally mirror twice over into the "circle" the video maker is arguing for.

@fstkpfls 2 жыл бұрын

@@Deciheximal Thanks for the tip, I know what you mean. The trade-off between the two physical quantities doesn't seem to be linear, though I wonder why.

@Deciheximal 2 жыл бұрын

@@fstkpfls The author cites special geometry to justify the circle shape (but presented it as far simpler than that.) I'm sure the math is fine.

@Accell_Auto 2 жыл бұрын

@@Deciheximal Is this just the video maker's theory and not recognized by academia?

@maxprofane 2 жыл бұрын

@@Deciheximal This is not correct.

@francoferro1625 3 жыл бұрын

This was one of the best videos I have ever watched 🤯

@helmutalexanderrubiowilson6835 2 жыл бұрын

You are a genius teacher.. this concept is so counter intuitive and you explained it very clear. You deserve tons of followers. Keep going fantastic job.

@someoneinmyhead Жыл бұрын

This is the most insightful explanation of spacetime. And I've seen many. Same for the fundamental speed. Great job!

@GJ-GamingJunkie 3 жыл бұрын

Your videos are insanely clear, to the point, well worded and easy to understand. For over 10 years I've been researching relativity, time, space, quantum mechanics, physics etc etc, just for fun because I absolutely love the subject. I've always struggled to visualise gravity in relation to time and space but after watching a couple if your videos its literally just clicked for me... clear as day! How on earth have I only just found this channel! I feel a binge watch marathon coming on haha. Keep up the good work!

@OroborOSX11 2 жыл бұрын

Ehhhh another modern physics hobbyist. Same situation here. I love learning about all this stuff, and this channel is an astounding resource.

@jasonsebring3983 3 жыл бұрын

Ok, I'm now addicted to this channel. Bravo. Another aspect is the mesmerizing/hypnotic music.

@dylandutson1626 2 жыл бұрын

As a person who doesn't actually often comment on YT videos, I'm going to echo some of the comments here. I have been learning physics on my own for about a year now and this is the most amazing video I have seen yet. And it's not even close. There were moments that were so illuminating as to be beautiful that made me emotional. This was a gift. Thank you.

@divyanshsharma07 Жыл бұрын

Best channel in the world ❤️❤️❤️. Literally, I felt so attached to it that since last 1 day I have watched his almost all videos. Good job bro keep it up 👍🏽👍🏽👍🏽

@dragonemperor5775 3 жыл бұрын

It's been 2 years since this video is uploaded. Why haven't I seen this before?

@AddisMultimedia 3 жыл бұрын

Proof that google's a.i algorithm is still static. Otherwise people like us would have had seen it the day it came out. Is that even possible? Heck I'm still thankful that I found this today just like you. Congrats and happy marathon! 😁

@Sttuey 3 жыл бұрын

This has just popped into my suggestions today also, yet I watch this type of content very frequently - better late than never I guess!

@afonsodeportugal 3 жыл бұрын

@Dragon Emperor Because videos of kittens move much faster through KZfaq space than videos with physics. In the KZfaq universe, kittens are the photons!

@Onimirare 3 жыл бұрын

trillions of videos are posted every second, how do you expect to watch them all?

@freenational 3 жыл бұрын

@@AddisMultimedia, could it be that you turned "do not track" on?

@lakshayakaushik4684 2 жыл бұрын

your explanations and visual representations are much better than a lot of videos on youtube - very underrated chanel

@korras21 2 жыл бұрын

By far the most important explanation of space-time and speed of light dependence I have ever come across.

@b.bjohnson135 3 жыл бұрын

Highly intuitive! The illustrations are very fitting and fascinating. Top of the class I bet. 👏

@amedeofilippi6336 3 жыл бұрын

Outstanding lesson about the true meaning of motion in space time.

@SumeetKumarHC 2 жыл бұрын

This video was one of the best science video ever. You are a true genius 👏

@jakubnovotny1010 2 жыл бұрын

This is the most mind-blowing video I have seen in years, wow, thank you so much!

@christopherd.0356 3 жыл бұрын

This is by far the best and most comprehensive explanation of causality! I am grateful I found your video and at the same time so sad that I did not encounter it years ago! Thank you very much for your effort and time spent on this magnificent educational material!!!

@NerdMusician 3 жыл бұрын

Your channel has the best, most visual, explanations. I'm mind blown.

@ScienceClicEN 3 жыл бұрын

Ahah thank you very much !

@bennybooboobear3940 3 жыл бұрын

@@treyt6474 I’m gonna comment to help you out!

@bennybooboobear3940 3 жыл бұрын

@@treyt6474 I think it’s because time completely just stops at the horizon.

@KritikX Жыл бұрын

One of the greatest physics videos i have ever seen. Very well explained. Gratulations

@godsofentropy Жыл бұрын

This is one of the most important and opening-mind films I saw in my life. Thank you.

@siroggak 3 жыл бұрын

Oh my god, these videos are so awesome! Why is youtube only now recommending them to me?

@edpreisendanz6093 3 жыл бұрын

Best explanation of space-time I've ever seen! Great job!

@BenoitMussche 2 жыл бұрын

This video connects many dots. I love coming back to it, periodically.

@MexMX 2 жыл бұрын

Still coming back to my very favourite science video. I love all your videos, but this one is just something different.

@BlackbodyEconomics 3 жыл бұрын

This is THE best graphical representation I have ever seen on space-time and the speed of light. Utterly brilliant :)

@ScienceClicEN 3 жыл бұрын

Thank you very much :)

@MonkeyMan12121 3 жыл бұрын

Wow, just amazing. Nothing else to say, just amazing.

@exoplanet11 Жыл бұрын

Excellent video. As one who teaches special relativity, it is nice to see the graph shown at 3:00 (which must be distinguished from a spacetime diagram) relating motion through time. The notion of antimatter as particles traveling backward in time (an essential aspect of Feynman diagrams) is presented well as particles on the lower part of the circle. However the question arises: why is ELECTRIC CHARGE the property that must be reversed in order to place a particle on the opposite side of the fundamental graph representing motion through space-time? Motion through spacetime (as shown in that graph) seems to be a fundamental aspect of any particle, more fundamental than any of its individual characteristics through which it feels forces (eg. charge, mass, nuclear 'color charge', etc.)

@devidaspai1070 2 жыл бұрын

Brilliant work! Easily the most easiest to understand explanation for space time relationship and spead limits.

@ravishankar2180 3 жыл бұрын

wtf did i just watch? it completely blew my mind. such a nice explanation of S&T.

@4shadow2 3 жыл бұрын

For once youtube recommended a good channel

@giulialosi4805 4 ай бұрын

Guys you are amazing! I am binge watching videos about relativity, time dilation, light etc since I saw Interstellar for the second time, it is becoming a sort of mania, and I can't find anything more adamant than your explanation. You make everything incredibly comprehensible, almost natural, and please consider that I am not an English native speaker. Also, I find it crucial that you leave a bunch of seconds of silence after each concept to digest each piece of information before getting to the next one, almost nobody does it.

@elijahromer6544 Жыл бұрын

My mind is blown. Thank you ScienceClic for a truly stellar and intuitive explanation.

@KEVINKUNJUMON-jx5ou 3 жыл бұрын

Damn I just love this guy's voice. It is more interesting to listen to him than many documentaries.

@snoozieboi 2 жыл бұрын

So I come to these videos regularly, not to understand, but to marvel. A photon travelling at the speed of light essentially experiences not time(?). Does it then even move? Or does each position for the photon just become a static "image" of the world around it? I think I'll just go back to drinking coffee.

@Observa_ 2 жыл бұрын

The photon moves through space at the speed of light. We see the photon as moving through time because time is passing for us while the photon is moving through space. But from the photons point of view, no time has passed and it has only moved through space. For the photon it seems that it has traveled it's whole path through the universe at the same moment in time. It's internal clock is stopped. But for us we see the photon as moving through time because our time is passing and the photon exists in multiple of our time frames. So what is the same moment for the photon can be billions of years for us. It's all a matter of perspective. Hope this helps :)

@REinCoat_Records 10 ай бұрын

Coffee for the countless late nights trying to theorise this concept and it's possibilities through? I know I am😂

@otaku-chan4888 Ай бұрын

Actually, high speeds doesn't slow *time* down. It only *makes events take longer to happen in time.* I know this sounds like the same thing, but the truth is- *we can't measure time.* All we measure are events that happen in time. From our childhood, we build an intuition of 'time' by using clocks, guesstimating how long a second is, and gain a concept of 'long times' and 'short times'. For example, let's take the simplest clock we can imagine: a photon clock. We can say time dilation takes place when outside observers say fast-moving people's clocks _have photons that take longer to tick._ That's an event that's taking longer. That doesn't mean *time slowed down.* Rather, we could say that when 'time dilation' occurs, _our perception of events warps, and makes it appear to take longer._ in my opinion, photons do have 'time.' The only thing that could make a photon stop experiencing time is when *a photon no longer exists.* However, _no events occur for a photon._

@pavangaonkardonigadde 2 жыл бұрын

This just blow my mind! Love your videos ... I will share this with my friends..you deserve much more....

@Guarrdian1984 2 жыл бұрын

Exactly, finally a video which helped me break through the boundedness and littleness of our minds that there's even more to the classical physics! Though very hard to believe this should be a must to all primary schools' teaching - so fundamental!

@Tony-be8rf 5 жыл бұрын

Nice! Translating your videos is a great idea! Keep it up

@ScienceClicEN 5 жыл бұрын

Thank you very much ;)

@TomtheMagician21 Жыл бұрын

This channel is so amazing I came to rewatch this video just because of how good it is at explaining special relativistic concepts. What would the graph look like if you included acceleration? Would it be able to explain the twins paradox too?

@yendorelrae5476 Жыл бұрын

Another great info fillied video with novel explanations and vivid visuals! I appreciate your productions and content. You can explain things like no other! I like that thus I repeat view.

@xStormyReign 2 жыл бұрын

This is the best way I've seen this visualized. Excellent job.

@ibrenecario7357 3 жыл бұрын

Thank you. I never seen this explained like this. I wonder what the channel did to suddenly get into my recommendation (and alot of other people judging from comments)

@davidbrown8763 3 жыл бұрын

To me, none of this makes sense. The claim seems to be that time slows down as speed increases. How can this possibly be proven when SPEED IS A FUNCTION OF TIME? In other words, you can only know how fast an object is travelling, relative to anything else, by assuming that the flow of time is constant for all objects. Again, since speed is a function of time, it makes no sense to speak of the speed of time. since its own "speed" can only be measured as a function of itself.

@anonymousperson9052 3 жыл бұрын

@@davidbrown8763 🤦

@autobot3925 2 жыл бұрын

@@davidbrown8763 This whole explanation starts with the initial assumption that the observer is at rest, ie, has no velocity. Here, Speed any how is rate of displacement in a fixed amount of time. As in, a photon travels way farther than an alpha particle in a second

@mythic_snake Жыл бұрын

This is the first time I've heard it explained like this. I did not know that anti-matter was simply matter traveling backwards in time. Very fascinating!

@markoprskalo6127 2 ай бұрын

That is sick theory I thought about that

@freemarkets 2 жыл бұрын

I REVERE your videos!!! Looking forward to more!!! Thank you for making them :)

@varunahlawat9013 Жыл бұрын

This is by far the most important video I've ever seen in my life(going to pursue aerospace in USA this fall...).

@Paradoxwhirl 3 жыл бұрын

Thank you, that was awesome. You've even included the holographic principle at the end with the information being contained around the horizon. Subscribed :)

@ScienceClicEN 3 жыл бұрын

Thanks !

@MrMultiSingularity 3 жыл бұрын

I love the concept that everything is moving at the speed of light. I've never heard this presented before and it really helps answer quite a few questions for me. I still struggle with the idea of movement through space in general though. For from any given perspective movement is still unto itself. Meaning that movement through space can really only be perceived when in contrast with some other object in space. If two object were moving away from each other at half the speed of light, how do we know which one is really moving? Or are they both moving at 25% the speed of light creating the perception of half the speed of light. Couldn't both objects make the claim that the other object is the one moving away from them at said speed and that they themselves are still. So in the example you gave with time slowing down according to the object moving very quickly, wouldn't that slow down in time be only perceivable again through comparison with the slow moving object? From the perspective of the ship, would not time still appear to be moving at a regular speed? And then how would that work from the reversed idea, whereas the ship would consider itself to not be moving at all and would look at the object it was originally moving away from to be the one that is then moving away from it at a very high speed. How would one even be able to tell which object is actually the one going fast in the void of space? I feel this concept very accurately embodies the 3 point problem. In the void of space everything is relative to something else, but is still unto itself. Another way to think about it is, Is Andromeda moving towards the Milky Way, or is the Milky Way moving towards Andromeda? I mean the only really accurate way to say it is that the two Galaxies are moving towards each other. Now Hypothetically speaking, let's say the two galaxies were closing in on each other at the speed of light. Is one moving at the speed of light or the other? Does it matter? They would not be able to accelerate towards each other any faster than that and Lorentz transformations would assure to it. The same would go if the objects were moving away from each other in the same scenario. You now have me completely puzzled about how the time dilation would occur between those two systems in said example. If there was a clock on a planet in Andromeda, and one on Earth, would they relate to each other at all. If they somehow were synchronized, would the speed that the galaxies moved towards each other effect those times at all? Just like the rocket example from earlier, how would one even tell which is moving towards the other at what speed. Perhaps it is only revolutionary speed that actually creates time dilation, since revolutionary speed can pretty accurately be measured relatively. Perhaps space/time is not a all pervasive web as we currently think of itit, but kind of a thing that mass itself carries with it. Every bit of mass is like a little bubble of space time that's pull is relative to it's amount? I am kind of just thinking out loud here, feel free to give me any information you feel may be relevant. Thank you!

@Hello-qg4yk 3 жыл бұрын

I really like this idea!

@antonystringfellow5152 3 жыл бұрын

The simple answer is, it's all relative... speed and time. Even position in the Universe. For example, if you use observation to determine your position in the Universe, you will find that you are dead centre, with the edge being approx 13.7 billion light years away. Someone in a galaxy 10 billion light years away, performing the same observations, will find that they are dead centre of the Universe too. Which one is correct? I would say they're equally correct or, more accurately ..... equally wrong. I don't believe the Universe has an edge and, if it doesn't have an edge, it can't have a centre. Your position in the Universe is relative/subjective. Equally, your position in time and space is subjective. Hope that helps.

@fuseteam 3 жыл бұрын

yes why from our point of view the time of a fast moving object is slow, from the point of view of the fast moving object time flows 'normally' and both observations are correct, that two of the postulates of relativity: there is no preferred observer both observers are correct but we can go further: the speed of light is the same for all observers you read right *all* observers whether you look at it from our point of view or from the point of view of a fast moving object light always travels at the speed of light

@duprie37 3 жыл бұрын

We're always moving at the speed of causality. At rest we're moving through time at the speed of light per second per second. In a car at 80 km/h we're moving ever so slightly less through time and more through space so that our total speed still equals causality. A photon moves through space at the speed of light per second and doesn't move through time at all so that it also still travels at the speed of causality.

@cyrusg8402 3 жыл бұрын

I think this video might help kzfaq.info/get/bejne/prqeaaiozciWZ58.html And this playlist kzfaq.info/sun/PLsPUh22kYmNCLrXgf8e6nC_xEzxdx4nmY

@_agent47_ Жыл бұрын

Time is the speed at which an object moves at rest (as measured in the 3 dimensions of space we can observe). That realization blew my mind!

@djangogeek 2 жыл бұрын

This is a FANTASTIC presentation! Well done :D

@Mavrik9000 5 ай бұрын

0:05 *Introduction* - The expansion of the universe can accelerate objects faster than the speed of light, this is not true movement. It is due to the underlying expansion of space itself. 0:51 *Special Relativity* - Special relativity shows that as an object's speed increases, its time slows down compared to a stationary observer's time. At the speed of light, time would stop. However, one cannot go faster than light or go backward in time by going faster than light. There is a curve connecting speed and time, not a straight line. 3:37 *The Circle* - The curve connecting speed and time is a quarter circle. All objects in the universe lie on this curve. Negative speed means movement in the opposite direction. It is impossible to go beyond the speed of light or 100% normal time flow because objects are confined to the circle. 5:53 *Speed of Light* - The speed of light is fundamental - it is the speed all objects move in space-time when considering both space and time. It is a universal constant. 6:20 *Speed of Objects* - Objects cannot exceed the speed of light because they always move at the speed of light in space-time. What changes is how their speed is distributed between space and time in a tradeoff fashion. Slow objects give more of their "speed" to time, fast ones like light have all their "speed" as movement through space and none to time. 8:15 *Antimatter* - The lower part of the circle corresponds to objects going backward in time. This provides a basis to postulate the existence of antimatter particles. 9:23 *General Relativity* - In general relativity, gravity is the curvature of space-time which converts temporal motion to spatial motion. Near black holes, an object's circle becomes smaller until at the event horizon it has no room left for motion. From a distance, objects appear frozen at a black hole's surface.

@PNW_Marxist 3 жыл бұрын

Thank you for this, that was a completely different way of wrapping my head around special relativity and it's making some things click in a far more intuitive manner than before.

@kliersheed 3 жыл бұрын

same. i still couldnt explain this to anyone ,but my intuition says it makes sense :D (comparing it with other videos i watched and comments i read) only the antimatter thing is still a bit "meh".

@TheodorusAtheist-sx1un 6 ай бұрын

I'm addicted to your videos. They contain the best explanation with a very encouraging musical sound. My favorite!

@dgormley Ай бұрын

I have less of a physics background and more of a mathematical background, especially with complex analysis. I've really been struggling with relativity. But putting it on a complex plane like this really has made it click. Thank you so much.

@feynstein1004 3 жыл бұрын

9:55 Wow, I just had my mind blown 😮 I'd never thought of gravity that way. Truly amazing stuff. I can't wait for more.

@PieterPatrick 3 жыл бұрын

I'm sure you also want to see this: kzfaq.info/get/bejne/fJuAmc2ktcqmqps.html Channel "The Science Asylum" about gravity will also blows your mind. :-)

@feynstein1004 3 жыл бұрын

@@PieterPatrick Hey crazy. I'm subscribed to Nick already ;)

@PieterPatrick 3 жыл бұрын

@@feynstein1004 Ofcourse you are... lol Sorry for that. :-)

@feynstein1004 3 жыл бұрын

@@PieterPatrick It's okay. Great minds do think alike :D

@First.nameLastname 3 жыл бұрын

its really the speed of causality. light is just something we can measure easily.

@GoogleUserX 2 жыл бұрын

Exactly !!! Causality IS the true fabric of the Universe !!!

@lloydtucker5647 2 жыл бұрын

🤔

@gol.drodger5261 2 жыл бұрын

Relatively* easy.

@furkancolak3702 2 жыл бұрын

Causality, this word has so deep meaning. Causality doesnt have a speed. There isnt particulary limit distance between result and reason. I mean we just define causality as a two point, point of reason after point of result. So isnt that wrong to think speed of causality with this definition?

@First.nameLastname 2 жыл бұрын

@@furkancolak3702 uhm, no. Causality in terms of space has a speed limit. 299,792,458 m/s. this is precisely what I mean. We can disagree, that's fine. But this is the meaning of my words. I'm not sure what "point of reason" and "point of result" means in your terminology. Things can not cause faster than 299,792,458 m/s. kzfaq.info/get/bejne/o9mGqKZ22J69lKM.html

@512TheWolf512 4 ай бұрын

This is THE way everyone in the world should be taught general relativity. It is outrageous that something this fundamental and this easy to understand is something you need to consciously seek out

@haneen3731 2 жыл бұрын

This is amazing, keep going with the excellant content!

@ryandemanuele7612 Жыл бұрын

So well explained! It would be interesting to explore why C is what it is and if C could be derived mathematically without real life measurements

@ExileLuciola 3 жыл бұрын

Part of this is misleading. Anti-particles don't move backwards in time ... we see positrons all the time and they travel in a way predictable with forward movement of time and they are anti-electrons or the anti-matter version of electrons; such as in beta decay.

@Hello-qg4yk 3 жыл бұрын

Yeah. Only mistake I noticed too

@tomhepz 3 жыл бұрын

It's not completely wrong unless that's what you were implying, an electron moving backward in time is equivelant to a positron physics.stackexchange.com/questions/391/is-anti-matter-matter-going-backwards-in-time

@ScienceClicEN 3 жыл бұрын

Yes, it's mathematically equivalent to say rather that the antiparticle has opposite charge, or that it's an ordinary particle moving backwards through time. It can seem weird at first, but it's actually very elegant to think about. Why would every particle have an antiparticle with all same properties except opposite charge ? It's more satisfactory to just allow particles to go back in time, and thus you don't need to introduce another form of matter. If you want the mathematical reason for this equivalence, it comes from the fact that particles with electric charge in quantum field theory are described as waves of complex numbers. These waves can either be of the form : exp(it), or exp(-it). Now you have two ways of interpreting this : you can say that your particles have either +i or -i (complex conjugate), which corresponds to saying that you have opposite charges, or you can say that your particles can have either +t or -t, which corresponds to saying that they can go forwards or backwards in time

@dutchrjen 3 жыл бұрын

@@ScienceClicEN Or that the wavefunction is cycling in the opposite direction in the complex plane (hence the e^(-i t)). There's no need to explain it as backwards time travel (although it could be). I don't even know what that would mean for a particle to travel backwards in time. We cannot put a message of any sort on a single elementary particle and transport it to the past so it's meaningless for us in the macroscopic world. If everyone in the world always had a property like rotating clockwise as they moved then suddenly you saw a couple people moving counter clockwise you could claim their internal time is running backwards (assuming people are as simple as single elementary particles) OR they are simply moving with an opposite property compared to everyone else as everyone moves forwards in time. That antiparticles have flipped properties is certain. That a wavefunction could have solutions of e^-it and e^it is quite reasonable without anything moving backwards in time. We could also equally assume that particles are moving backwards in time and antiparticles forwards. Even though we are made out of particles and not antiparticles we could all still experience time moving forwards. Perhaps electrons are moving backwards and protons forwards... We do know there's a symmetry.

@Deciheximal 2 жыл бұрын

@@Hello-qg4yk Did you notice that the circle shape was wrong? It would be a rounded square. Google graph speed of light vs speed of time, and you'll see what I'm talking about.

@benjaminklein8697 Жыл бұрын

Your videos are insane, thanks a lot for making them and pkease continue doing that, you really helped me understanding all this much more in 15 minutes then I understood it in depth in 30 lectures

@paymansalehishafa6884 6 ай бұрын

Wow, don’t ever stop educating. You’re simply the best out there.

@chixulub 3 жыл бұрын

This video and this channel is so good that... wow, I'll get back when I find the words. Until then I can only agree with massive praise in the comment sections.

@augijyotbali2131 3 жыл бұрын

You know what ! I LOVE YOU FOR MAKING THIS MASTERPIECE!

@tamaldatta8520 3 жыл бұрын

Can you relate the light cone with this circle of causality ? If you can then please tell me, it'll be very helpful. Thanks.

@kenn743 Жыл бұрын

"Let's make a world in which we go to other worlds." amazing video thanks

@uwqq2146 11 ай бұрын

Kudos! ScienceClic English explanations are one of the best!

@CallsignJoNay 3 жыл бұрын

8:30 Very interesting! So the key to inverting things in the world of TENET is to convert them to antimatter, which inadvertently reverses its entropy. That means that any inverted objects in the world of TENET should annihilate any regular matter they come in contact with.

@TakuTJuly 3 жыл бұрын

"The more you study relativity, the less you know" - Me

@suzukix3082 3 жыл бұрын

Same

@xyz-cv3dv 3 жыл бұрын

What

@TakuTJuly 3 жыл бұрын

@Roger Loquitur I didn't under stand anything but.. Thanks for telling :)

@sarthak8350 3 жыл бұрын

True

@Chicken_Little_Syndrome 2 жыл бұрын

“Einstein's relativity work is a magnificent mathematical garb which fascinates, dazzles and makes people blind to the underlying errors. The theory is like a beggar clothed in purple whom ignorant people take for a king... its exponents are brilliant men but they are metaphysicists rather than scientists.” - Nikola Tesla “Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality.” - Nikola Tesla

@hadrianos1 Жыл бұрын

Awesome, awesome, awesome!!! I'll save this video, cause it's just totally brilliant in so many aspects!

@simochri6371 2 жыл бұрын

From 5:58 to 6:18 you totally blew my mind :O I finally understand why time is relative to the speed of an object, amazing!

@somerled74 3 жыл бұрын

The circle explanation? Genius!

@MichiganUSASingaporeSEAsia 3 жыл бұрын

My head is spinning now. I thought I mastered these concepts. It’s similar to what they are saying at the Western Michigan University school of engineering and aviation departments...

@farukhsharipov Жыл бұрын

Best explanation ever. Job well done!

@wuwei6403 2 жыл бұрын

Dude, GREAT explanation! Subscribed.

@ConstantineTvalashvili 3 жыл бұрын

12 minute video that's better than the entire course at the university

@kateiry4719 3 жыл бұрын

"We all move at the Speed of Light" sounds like a catchy line of lyric from 2012

@fredneecher1746 2 жыл бұрын

"We all move at the speed of love" - Brian, from Family Guy

@jd35711 2 жыл бұрын

we all move at the speed of light in a yellow submarine

@skiro8375 2 жыл бұрын

OMFG where were you all my life dude? This is the best explanation of relativity I have ever seen. I feel like a roadblock has been removed in my head when I saw this. Thank you very much! you are a legend.

@mitchellglaser 2 жыл бұрын

I've watched dozens of these videos on the speed of light vs. time, but this one finally made it click! Either my brain is weak or the video is really good, or both.