LondonCityGirl Isn't it strange that time, distance, and speed seem to be a variant of a single structure ? You need speed x time for distance, distance and time for speed, and speed and distance for time. They look like a never ending loop. The principles stated in the video seem to take effect at every step of this infinite loop stuff. Distance, time, and speed seem to be motivated by something. I think it's energy. I think momentum/vibration = energy, time,distance,and speed. I think matter is just some variant of this momentum. What do you think?
Yeah u r right everything in this video can be understood easily if u understand the equation speed=distance/time. Vibration and energy is inversely proportional to each other???
@@markperry3517 Not so. It is inevitable that later scientists stand on the shoulders of giants. It is a bit like a jigsaw, some were putting 2 or 3 pieces together here and there, but it was Einstein who assembled all the pices and put them all together, into one coherent whole.
This is perfect. No gimmicks, no background music. Just clear simple information. It still takes mental gymnastics getting your head around it all. Thanks for the great video.
When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute - and it's longer than any hour. That's relativity.” - Albert Einstein
It's so above your head time is relative like time flies when having fun its over all ready damn it but do something you Hate and time stands still like the HOT CHICK you don't want rhe time to go but a hot stove even a spit second hand on stove is too long a time to pass smh
I just want some thoughts. This says that time must slow down if the light is travelling a greater distance, but isnt the time it would take for it to travel that distance just be longer even in reference to the other one. Basically, for the light to bounce back and forth three times while the mirrors are moving, it would take lo ger than while they are still because it has a greater distance to travel
Ha! Have you ever heard of the concept of the fruit loop? It goes like this - true statement - true statement - true statement - false statement + fruit loop. A fruit loop is a false statement that spins the argument down and impossible path and then spins out of control... Called a fruit loop because it is crazy ie "fruity" and loops back on itself and then spins off in some incredible and impossible direction. That is what you have here. Einstein the "Greatest Genius of the Twentieth Century" was in fact the greatest proponent of the "Fruit Loop" in history. Einstein has no idea what time is or even what space is. His "theory" is so flawed and so beyond the realm on possibility it is worthless except for those parts of the theory that he "borrowed" from much smarter men than him. Einstein will without doubt eventually go down in history as the greatest "scientific" con man who ever lived.
This video isn't hard to unerstand because it's very simplified but I can assure you that understanding the whole theory of general relativity is hard. That's why I came to this video but the girl said things that I already knew
0:10 -Classical Relativity 1:25 -Time Dialation 3:33 -Length Contraction 4:45 -Time Travel 5:29 -General Theory of Relativity 6:14 -How do you know it's true Hope it helped you a lot
Time does not slow down for the traveler; it *appears* to slow down for someone watching the traveler - who in turn sees time for the *watcher* running more slowly!
+Jeff Rey The traveler doesn't really see the time for the observer running slow. It's Twin Paradox which would somehow indicate the traveler to think of the previous view which is not true. As the traveler assumes his initial point at the front of his path to his destination which according to him will be at the rear, he soon realizes that the instant at which time for initial point t = 0 is not the same in case of that of his destination. The clock of the later runs slightly ahead of the earlier one. Their clocks stay out of synchronization. In order to calculate the time on the clock of the observer the traveler must take that of his destination's clock into account.
+Jeff Rey no time does not "appear" to slow, it DOES slow, for both parties. It's just that it's relative for both. It literally is slowing though, as you could theoretically use time dilation to time travel.
+Adam Blackler Well, I didn't realise it until now, but it's largely common sense once you understand basic physics (like super basic start of high school).
***** Yeah, I know that, I was not saying that what he said was simple for it's time, I was just saying that I thought it would be harder, I'm fully aware that discoveries like these are gauged relative to their times. And I hardly think that what I said was cocky.
***** I didn't say it *was* common sense, I said that it was *largely* common sense, as in simple logical deduction, as was explained in the video. You're acting like I don't understand the weight behind these discoveries, I do, and what I was trying to reflect was the video explaining it well and making it simple apposed to the theory itself being simple.
That Speed = Ddistance/Time demonstration was SOOO HELPFUL! I've always been told the time is relative but no one's ever fully explained it. Thank you for this video!
I studied relativity in my college physics course in 1974. As a math major the equations were easy to follow. For anyone without a strong math education this is a terrific explanation. Well done! Thx
I'm 14 years old and i am really interested in astrophysics and space. The idea about quantum mechanics and relativity is amazing. This video really helped me to understand it. Great video! You earned a subscriber :)
I have watched many many videos but I was unable to understand,but literally literally this video helps me to understand about theory of relativity ,the speaker explains in such an easy way that it was easy , very easy to understand . Thanks a lot to the speaker.
I rarely comment on RUclips but your video really forced me to sign in and comment. I thought, it would be more better to visualize this concept just in few mins before watching Interstellar. And after watching this video, I can easily comment that, this is one of the most interesting and attractive videos I have ever seen. Thanks for sharing :)
muhammad nabeel So pleased to hear you enjoyed the video and found it helpful! Feedback like this is wonderful so thanks for taking the time to sign in and comment ;)
The term "Time slows down" confused because when I thought about it I thought that meant smaller speed of light. When really it doesn't only slow the minute, it makes it larger. So a larger minute (or slower minute) allows a larger distance for light light to travel.
I love your physics animations, they are very educational and easy to understand. Thank you for providing all this wonderful knowledge in a format that is accessible to all, it is something we desperately need in society, as people become less and less engaged with educating themselves in the sciences!
It takes time to accept that space and time are not absolutes but you get there , just keep watching videos it's not that hard like l said it takes time for your brain to accept it cause it's counterintuitive big time but it's been proven with experiments in real life
@@rockwithyou2006 In fact in the 1800s the theory was that light propagated through an invisible medium called the 'luminiferous Aether'. Sadly the Michelson-Morley experiment disproved its existence. Light travels through a vacuum at constant speed.
Time is constant along with light BUT our perception of it is relative to each other like the George Floyd Murder or death by suicide ????He did have a lot of drugs in him ?????
Kartheyan Sivalingam Theory of Relativity gave us Nuclear power plus the GPS.And medicine!REEEAAALLLYYY.QUANTUM MECHANICS DETERMINES QUANTUM PARTICLES.THIS IS PHYSICS
I was so happy in my life. Nothing really mattered to me. Everything seemed so beautiful and magical. Then I saw Theory of Relativity. My thoughts are now devolving. Thank you Einstein.
londoncity girl u r a very Beautiful person.. cuz of the way u explained it.. to the point no rubbish very precise and very simplified illustrations... no irrelevant time wasting gimmicks around in the video... saw 3 videos on relativity nd urs was the most easy to understand for my brothers who thought interstellar was based upon an imagination 😂😂
That was REALLY good, probably the best explanation I have seen! No nerds getting off on complex explantions just simple, clear dialogue with effective graphics - BRILLIANT - Well done! Just one point...... the bullet still has it's cartridge attatched! ; )
John Dwyer thank you! So pleased by the feedback as the aim was to keep it simple for people who have an interest and curiosity but aren't planning to study for a phd in physics :)
@tommy cane115 Here you are again, saying bullshit. Anyway, what you said about the other video that black hole was made because of the fact that einstein's theories can't be proven. Well, apparently, a black hole has been observed recently proving Einstein's theory once again lmao
@tommy cane115 Your parents clearly didn't take good care of you. Here you are making insults on people for the past 3 months. Get a life and stop using the same sentences.
*If anyone is confused, here is a quick explanation:* Say there are two sets of mirrors that are both bouncing a beam of light back and forth vertically. One set of mirrors is traveling at the speed of light horizontally while the other is stationary. Pretend you are moving at the speed of light along side the moving set of mirrors. The light that is bouncing between the moving mirrors is traveling a greater distance in a shorter amount of time. That means the light beam is traveling faster than light. Of course, there is nothing in the entire universe that can go faster than light, so in order to compensate for this paradox, time -according to the person moving with the moving set of mirrors - goes slower in order for light to travel a greater distance in the same amount of time as the stationary set of mirrors. Basically, time has to slow down in order for you to travel a greater distance in the same amount of time as something staying still (AKA speed=distance/time)
James Maniac so essentially, where the speed of the ball being thrown in basic relativity increases, the speed of light is constant so time must move slower insetad
prudvi raj no its not. When you consider the earth's spin and the fact we are in a galaxy that's moving what is the real speed of the ball? This is the relative bit of relativity. It only makes sense to talk of things moving relative to one another. so the ball is only moving at 50 mph relative to someone stood on the ground, but between the kids it is moving at 10 mph.
Doesn't length contraction take place in the direction of the object's motion? I mean the mirrors are moving along X axis, their length along X axis will reduce, but not the distance between mirrors in Y axis...
Hence, time dilation and length contraction is necessary so that the speed of light is the same for all, that is 186,000 miles per second, I'm trying to wrap my head around the theory of relativity. Time is relative, not constant. Thanks so much, wonderful video.
Another interesting point is that just like the clocks slowing down when in motion at very high speeds (comparable to c) , our heart rate, breathing rates, etc also slow down (relative to the stationary observer) because these can also be considered some biological clocks. This would mean that ageing is slowed if we move at very high speeds. And btw it was funny to see the TARDIS at 4:46 XD
Clocks being different: The forces acting upon the clocks are different, which acts upon the clocks in ways to change their respective "time". Gravity is different on different spots on the Earth as well as magnetic field strengths may be different as one moves and/or the field moves through it. While not all matter is considered magnetic, all matter can be affected by magnetism due to the magnetic fields generated by the moving electrons in atoms.
+Michael Towler Not only gravity, but recently I believe some people received a noble prize finding out that neutrinos have mass. As neutrinos pass through certainly aircraft and therefore even a clock on an aircraft, it would seem to me that any neutrino impacts traveling at high speed in addition to the speed of the aircraft would affect the clocks on that aircraft. Albeit probably only tiny impacts, but probably cumulative as well. Then also the variability of the Earth's magnetic field which would affect all matter as a moving electron in an atom would generate a moving magnetic field that would be acted upon. Since the "time" difference between the stationary clock and the moving clock is only very small, this sure seems very reasonable to me utilizing known laws of physics.
Great video, thank you. I keep thinking that, generally speaking, we're using multiple concepts derived from one man's amazing intellect and even though most of Einstein's theories have been validated, we will very likely find his work as one step in the ladder of knowledge (similar to Newton's work). It seems like there was a lot of work necessary to ensure the speed of light remains constant for all observers, e.g., time dilation and length contraction. My humble, uninformed guess is that we'll find exceptions and limitations to the equations that Einstein developed, and one day be able to travel at speeds beyond the speed of light. However, odds are I won't be around to pat myself on the back.
5:21 "This is why we cannot travel back in time. We simply have not been able to reach a greater speed than the speed of light." :)) The fastest men have ever travelled was on Apollo 10 re-entering Earth at 0.0037% lightspeed (around 7 miles / 11 km. per second). That's when we missed the best chance to "be able to reach a greater speed than the speed of light".
sarsunflower You would actually need greater than infinite to go faster than light. It takes infinite energy to reach it. That's why the "fun to think about" tachyons exist faster than light, they do not accelerate to that speed.
sarsunflower You'd still not get to faster than the speed of light. think of speed, mass, and energy as a right-angle triangle. if you have mass (the vertical part of the triangle) no matter how much energy you put in (the horizontal part of the triangle), the angle of the hypotenuse (the long side) would never be flat. By saying you can go backwards in time with enough energy is like saying you can make a right-angle triangle start bending the other way by making the length of the horizontal line bigger.
I suggest anybody who is a beginner to watch this video first. I did it and understood everything very well. Then I watched some other videos where I found some better explained details, but without this video first, I would not understand anything. Thanks a lot.
"It is said that once einstein was asked to explain the theory of relativity. He said, put your hand on hot stove for a minute it seems like an hour. But, sit next to a beautiful woman for an hour it seems like a minute. That's relativity."
Time dilation can be observed when your wife says she needs 5 minutes to get dressed. On your watch it passed 45 minutes, but for her it’s still 5 minutes 😂
I asked my science teacher a bunch of questions that are not even taught in university… I wanted to ask my teacher about this but I guess it’s not that good to bombard my teacher with a bunch of questions. And I’m here :) Good video, nice explanation :D(I’m 12 lol)
Oh my god, this like clears up all confusion. I can't thank you enough for this video. Could you post some sources for this info though? Thank you so much.
if you rotate the clock parallel to the direction the photon is traveling and approach the "speed of light" no more bouncy bounce, we EMITTIME, the speed of undivided light is zero, only divided light moves, also what we call "gravity" is universal compression, a push from above, search black and white photos of jupiter to see how its moon is pushing on the eye of jupiter, there is mutual repulsion between all bodies in space, that is why there are no meteorites in any meteorite craters, see patomski crater, non perfect 90 degree angle, no impact
Great video! As an engineer I want to point out that a bullet does not travel with its cartridge as in 4:50-5:30.. this is often portrayed wrongly. A cartridge holds the powder which is ignited by the primer. This rise in pressure due to combustion causes the bullet (the yellow part in this video) to separate from the cartridge and be pushed through the barrel. The cartridge remains behind and some of this energy is used to eject it out the side. In some cases it is ejected manually by the operator.
Good thing you didn't watch the videos she basically stole the animations from: ruclips.net/video/30KfPtHec4s/видео.html ruclips.net/video/G-R8LGy-OVs/видео.html
When you are inside plane or train, are you able to feel that plane or train is on the move, similarly being inside earth we cannot feel our movement or earth's movement,
1:25 Time Dilation 2:45 Speed = Distance/Time 3:33 Special Theory of Relativity- Length Contraction 4:38 Spacetime/Time Travel 5:15 Infinite Energy could send one back in time? 5:30 General Theory of Relativity (warping of space time) 6:17 How do we know it is true? - GPS - Clocks Out of sync
I'm sure someone else has pointed this out, but the length contraction only happens along the axis of motion, so the boy should be drawn thinner but not shorter. Also, to clarify, the boy in the ship doesn't experience time to be slower. To him, everything is normal in the ship. It's only from the perspective of someone on Earth (or any other reference frame) that the ship's time is dilated. And likewise from his perspective, everyone else's clocks are slow. Thanks for the video!
This 2:38 is particularly difficult for us (humans) because we view “time” as something determined by a clock; clocks watches are just instruments Homo sapiens use to have some gauge or measurement of time, like a measuring tape to measure the length or width of something.
Length contraction only works in the direction of movement. I think showing the mirrors getting closer when it is moving side to side is a little misleading. The light beam should be going side to side if you are showing movement side to side. The clock would only get smaller in the direction of movement. It would be skinnier. Not smaller.
A LITTLE MISLEADING? It's flat-out wrong. And it's not just the illustration, the monologue also matches that picture, she thinks that the length contracts side to side and opposes the effect of the light taking longer per cycle to reflect back and forth. It's not a little misleading, it's flat out talking out of her scientifically illiterate ass.
So we are grow by the time? Like if you were to travel somewhere 2 years away at the speed of light and you come back and your friends are 50 years older than you. Does that mean us humans grow by the time, not because our body just grows?
If you travel at speed of light, you won't be human againg. Do not try at home. The time its just a success that never stop or return. We grow according with our biological information .
Classical relativity in a nutshell: A truck moves at 50 mph, and ball inside truck moves 10 mph. The boy is looking at the truck and the WHOLE FUCKING UNIVERSE IS IN MOTION BITHCASSSSSS
The speed of the ball is relative to the motion of the truck. The speed of Alex and EVERYTHING ELSE on earth, is relative to the movement of EVERYTHING else in the universe!
Nice video. Philochrony is the theory that describes the nature of time and demonstrates its existence. Time is magnitive: objective, Imperceptible (intervals) and measurable.
Most things that are stupid and wrong are easy to understand. It pisses me off to see comments like yours. You think you've learned something but it's the blind leading the blind. She doesn't know what she's talking about, and just talking about her vague understanding of it. She thinks that objects shrink down in every dimension the faster they go for shit's sake, that traveling fast is a veritable shrink ray. And now if someone comes up to you, because she made a video about her ignorant misconceptions with a fake pretense of authority and you watched it, you might tell them about how objects shrink down when they go fast and they'll say "I don't think so," and you'll say "no, it's true, I saw a video about it on the internet and everything!"
Umm, I have a question!i!i If everything is not in absolute motion then how do you add the earth to that equation. When it is constantly in motion because of gravity and the only reason it could stop is if GRAVITY entirely stoped! (please answer)
My question is what happen if space man and earth man watch each other by live video. Are earth man would be so fast for space man or space man would be so slow for earth man?
For some reason I think yes. Because based on the video time slows down in space. If the clocks on the same time were experimented on the space and earth was on sync before leaving earth I guess it's the same with both people watching as the clock both running and both on the same time.
Each would see the other moving slower, and both would be correct. However, if you actually tried to return to the earth to compare your clocks, you'd find that much more time had passed on the earth than had for you. This is because you changed reference frames (you accelerated in order to stop and turn around). *All* things are not relative, just uniform motion in a straight line. Once you start accelerating, you keep changing reference frames and you'll find that suddenly your motion becomes the "real" motion. If there were twins, and one of them left in a ship near the speed of light and the other stayed on the earth, and after travelling for a long time the twin on the ship turned around and came home, that twin would be younger than the other, by an amount depending on their speeds and distance traveled.
Wait i didn't get the last part! how do the clocks show different times? the clock is a mechanical device after all, this is the concept of time that delays or outrun, meaning that when I am on the plane with a particular speed, my time is conceptualized differently than a person standing on earth, but how does it effect the movement of the clocks in my hand and his hand??
Travel doesn't effect the movement of your watch, i think it warps space-time. As you're moving through space, your time slows down relative to someone standing still 🤔 this is reflected in the value displayed by your watch
Agree that this video failed to give a satisfactory explanation and actually caused confusion on this point. The answer is that time passes faster at higher altitudes relative to lower ones (because gravitational potential is greater) and passes slower for objects moving at higher speeds relative to those moving at slower speeds. The clocks in this experiment were off by nanoseconds, not whole minutes. Showing a difference of whole minutes rather than the imperctible difference of nanoseconds led me to question why flying has never caused my watch to be noticeably out of sync with my clock at home as a result of my watch's daily speed and altitude increases relative to the clock's.
It doesn't effect the mechanical movement. Think about it. From your perdpective, you are stationary, so it must work the same way. It is because you have less time.than a stationary observer on the ground. It's like a strange tunnel. When you go through the tunnel, the path is very long, and when you go next to the tunnel, the path length is normal. It's strange, but it's also reality.
Why am I watching this in the middle of the night when I am a law student and have three essays to write
I can relate - I studies law at Uni and I used to everything to avoid writing those essays! :D
LondonCityGirl Isn't it strange that time, distance, and speed seem to be a variant of a single structure ? You need speed x time for distance, distance and time for speed, and speed and distance for time. They look like a never ending loop. The principles stated in the video seem to take effect at every step of this infinite loop stuff. Distance, time, and speed seem to be motivated by something. I think it's energy. I think momentum/vibration = energy, time,distance,and speed. I think matter is just some variant of this momentum. What do you think?
Tsang Raymond because ........you have 3 essays to write
Yeah u r right everything in this video can be understood easily if u understand the equation speed=distance/time. Vibration and energy is inversely proportional to each other???
Lolololololol
Einstein is always shown as an old man, but it's interesting to note he was a very young man when he published these theories.
highcheese he was a ‘relatively’ young man! 😄
There exist pictures of him young.
Plagerized them
His messy hair is a trademark don't knock the people who can't understand basic maths
@@markperry3517 Not so. It is inevitable that later scientists stand on the shoulders of giants. It is a bit like a jigsaw, some were putting 2 or 3 pieces together here and there, but it was Einstein who assembled all the pices and put them all together, into one coherent whole.
This is perfect. No gimmicks, no background music. Just clear simple information. It still takes mental gymnastics getting your head around it all. Thanks for the great video.
Gra Piken thanks so much for the great feedback! :)
LondonCityGirl i love u. after seen this video, lol
I still don't get it
Teacher: you're 15 minutes late to the class
Me: well, time is relative.
Underrated comment!!
UNDERRATED! VERY GOOD!!!!!!!!
Noor yeadeen, you are very funny, lol.
Yes time is relative, but it is always relative to something, in this case relative to the school working hours.
Noor Yaseen // really? Your girlfriend: you’re 15 min late?! You: blame einstein. She: sure, sure I gonna do it right now. Bye!
This explains why when I'm standing still or procrastinating time seems to get away from me, but when I'm moving I feel like I have plenty of time.
Wow... Great comparison
Alyson Oltmann not really. The total difference in time would be less than a second.
I think that's a bit of an oversimplification, Alyson, but you're probably not too far off the mark.
Holy shit your right! This happens to me every morning
Actually good explanation..
The clear explanations, combined with extremely pleasant voice and diction, makes this video a pleasure to listen to.
Jacques Lagacé but hard to understand
When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute - and it's longer than any hour. That's relativity.”
- Albert Einstein
No? It's not
@@averagedbeatenjoyer You won't understand it..so forget it
It's so above your head time is relative like time flies when having fun its over all ready damn it but do something you Hate and time stands still like the HOT CHICK you don't want rhe time to go but a hot stove even a spit second hand on stove is too long a time to pass smh
I can’t Believe I’ve been browsing videos for the past 7 days and i think i finally understand now. Thank you so much
@DOCTOR GLITCH
ruclips.net/video/vGhYwQdpM1U/видео.html
Comperhensive Ppt about black whole in Urdu language
What really? So do i have to replay this video over and over?
I just want some thoughts. This says that time must slow down if the light is travelling a greater distance, but isnt the time it would take for it to travel that distance just be longer even in reference to the other one. Basically, for the light to bounce back and forth three times while the mirrors are moving, it would take lo ger than while they are still because it has a greater distance to travel
Ha! Have you ever heard of the concept of the fruit loop? It goes like this - true statement - true statement - true statement - false statement + fruit loop. A fruit loop is a false statement that spins the argument down and impossible path and then spins out of control... Called a fruit loop because it is crazy ie "fruity" and loops back on itself and then spins off in some incredible and impossible direction. That is what you have here. Einstein the "Greatest Genius of the Twentieth Century" was in fact the greatest proponent of the "Fruit Loop" in history. Einstein has no idea what time is or even what space is. His "theory" is so flawed and so beyond the realm on possibility it is worthless except for those parts of the theory that he "borrowed" from much smarter men than him. Einstein will without doubt eventually go down in history as the greatest "scientific" con man who ever lived.
@@frankharcourt7523 so your agreeing with me that it does not make sense?
It’s 2:34am and I have my finals tomorrow morning but look at what I’m watching. I’m a fashion student but DAMN IS PHYSICS ADDICTIVE OR WHAT
Good luck with your finals! :)
Ikr 🤦🏻♂️ it actually is addictive. I'm a CA student and I'm watching this, Reading Stephen Hawking books and what not!🤦🏻♂️
Lmao i am lucky I am in grade 7 just watching this for so many hours straight
Somewhere out there at 2:34 am there are some physics students watching fashion videos.
@@octs609 well you will age fast haha enjoy while it lasts
Theory of relativity is not hard to understand but hard to believe!
Absolutely right
This video isn't hard to unerstand because it's very simplified but I can assure you that understanding the whole theory of general relativity is hard. That's why I came to this video but the girl said things that I already knew
Yes
Ironically the equations for special relativity, if I recall, were very straightforward and easy to work with.
the math is easy, the concept is difficult. i always tell my students to not let their brains get in the way of them understanding it...
Woah that part about the alarm clocks being at different times is astonishing. The universe is full of wonders...
100 percent
0:10 -Classical Relativity
1:25 -Time Dialation
3:33 -Length Contraction
4:45 -Time Travel
5:29 -General Theory of Relativity
6:14 -How do you know it's true
Hope it helped you a lot
Thanks
@ Wlcm Dude
Cool
Bruh look at the description
The above four mentioned are all unproven nonsense.
Time does not slow down for the traveler; it *appears* to slow down for someone watching the traveler - who in turn sees time for the *watcher* running more slowly!
+Jeff Rey Time slows down relative to the observer.
+Jeff Rey Correct. The stationary observer concludes that the moving clock runs slower. Each observer sees his clock running at normal speed.
+Jeff Rey The traveler doesn't really see the time for the observer running slow. It's Twin Paradox which would somehow indicate the traveler to think of the previous view which is not true. As the traveler assumes his initial point at the front of his path to his destination which according to him will be at the rear, he soon realizes that the instant at which time for initial point t = 0 is not the same in case of that of his destination. The clock of the later runs slightly ahead of the earlier one. Their clocks stay out of synchronization. In order to calculate the time on the clock of the observer the traveler must take that of his destination's clock into account.
+Jeff Rey no time does not "appear" to slow, it DOES slow, for both parties. It's just that it's relative for both. It literally is slowing though, as you could theoretically use time dilation to time travel.
+trtnec I remember readed somewhere that say time slow near a heavy object, like a blackhole. Is that true?
Awesome.. "Interstellar" brought me here.. I am somewhat clever now. Very Simplified explanation.
Viven Samuel me too
+Viven Samuel tht mirror example explains the time relativity in the tidal wave scene
Me too hahaha
+Viven Samuel omg same
+Viven Samuel Same! Still none the wiser haha!
HOW THE FUCK DID HE COME OUT WITH THIS OUT OF ABSOLUTELY NOWHERE???
+Molun Via thought, maths and observation.
+Adam Blackler Well, I didn't realise it until now, but it's largely common sense once you understand basic physics (like super basic start of high school).
Imagination
***** Yeah, I know that, I was not saying that what he said was simple for it's time, I was just saying that I thought it would be harder, I'm fully aware that discoveries like these are gauged relative to their times. And I hardly think that what I said was cocky.
***** I didn't say it *was* common sense, I said that it was *largely* common sense, as in simple logical deduction, as was explained in the video. You're acting like I don't understand the weight behind these discoveries, I do, and what I was trying to reflect was the video explaining it well and making it simple apposed to the theory itself being simple.
That Speed = Ddistance/Time demonstration was SOOO HELPFUL! I've always been told the time is relative but no one's ever fully explained it.
Thank you for this video!
Can you explain the Theory of relativity in
45 days so that I can understand.
Its called reading a textbook
Bro I can't control my laughter 😂😂😂😂
Time is relativistic . Means 45 days would slow down to another time maybe 45 years if
she teaches at the speed of light
you are a noob
I studied relativity in my college physics course in 1974. As a math major the equations were easy to follow. For anyone without a strong math education this is a terrific explanation. Well done! Thx
Is it possible to understand without math why you can theoretically reach close to the speed of light, but not the speed of light?
I think, with math, is the only why to successfully explain it.
It's impossible to hit the nail square on the head with analogies.
No , cuz Einstein had trouble to find the mathematics formulas too for this.....
I'm 14 years old and i am really interested in astrophysics and space. The idea about quantum mechanics and relativity is amazing. This video really helped me to understand it. Great video! You earned a subscriber :)
Will Smith Great to have you supporting the channel :) And pleased you liked the video.
I'm 15 and I'm as fascinated about physics as much as you are too
I have watched many many videos but I was unable to understand,but literally literally this video helps me to understand about theory of relativity ,the speaker explains in such an easy way that it was easy , very easy to understand . Thanks a lot to the speaker.
I rarely comment on RUclips but your video really forced me to sign in and comment. I thought, it would be more better to visualize this concept just in few mins before watching Interstellar. And after watching this video, I can easily comment that, this is one of the most interesting and attractive videos I have ever seen. Thanks for sharing :)
muhammad nabeel So pleased to hear you enjoyed the video and found it helpful! Feedback like this is wonderful so thanks for taking the time to sign in and comment ;)
Just want to thank you! This is amazing. You have a real gift of simplifying insanely complex concepts. I really enjoyed it.
thanks David - I really appreciate your leaving such a nice comment :)
love you
that escalated very quickly
I want to thank you so much for this! Its making a lot of sense!
David Angel
The term "Time slows down" confused because when I thought about it I thought that meant smaller speed of light. When really it doesn't only slow the minute, it makes it larger. So a larger minute (or slower minute) allows a larger distance for light light to travel.
ThePackapunchmaster yup, exactly - time dilation :)
I love your physics animations, they are very educational and easy to understand. Thank you for providing all this wonderful knowledge in a format that is accessible to all, it is something we desperately need in society, as people become less and less engaged with educating themselves in the sciences!
I WAS CONFUSED WITH TIME DILATION. THAT MIRROR THING. WELL THANKS FOR MAKING THE VIDEO. IT HELPED ME A LOT.
Should I be worried that even a simplified explanation is still not getting in my head?
not if it's literally the theory of relativity
No. Theory of relativity is advanced science at the best of times. Einstein was a genius don't forget!
You should not be worried if you don't understand the explanation but you should be worried if you stop trying to understand the explanation.
It takes time to accept that space and time are not absolutes but you get there , just keep watching videos it's not that hard like l said it takes time for your brain to accept it cause it's counterintuitive big time but it's been proven with experiments in real life
yes it's cheaper to see it on the video than to travel in space with Virgin airlines...after so a trip you would understand it immediately........
The most simple and comprehensive explanation about relativity I have ever watched. Thanks to the channel.
So basically the speed of light, which is always constant, proves that time is relative.
*in a given medium.
@@rockwithyou2006 nope it is a constant. The medium stuff is incredibly complicated and its not like the photons speed is actually slower.
@@rockwithyou2006 In fact in the 1800s the theory was that light propagated through an invisible medium called the 'luminiferous Aether'. Sadly the Michelson-Morley experiment disproved its existence. Light travels through a vacuum at constant speed.
Time is constant along with light BUT our perception of it is relative to each other like the George Floyd Murder or death by suicide ????He did have a lot of drugs in him ?????
if speed of light is constatnt, then time must also be constant, therefore time dilation is bullshit.
I haven't got the time or PATIENCE to try to understand this! Good luck everyone! I'm going back to my dot to dot book!
But if you approached the speed of light you would have more time!
@@Anatolij86 😂😂
Who left the kids to play in moving truck
That comment made me smile - lol
When I understand nothing in the video:
It was the 50s. Kids couldn't die from things like that then. lol!
@@HardRockMiner good one 👍
@@HardRockMiner did u understand theory of special relativity ..
Well explained. I searched at least 10 videos explain about relativity. This is the easiest to understand.
Harvey Sia thank you so much, that's an awesome comment to read! :D
i've been trying to understand the theory of relativity for 3 hours now, this video really help me
Your VERY simple explanation just f**ked me up for the rest of my day..thanks🤣
They complicated it. its actually understandable.
Very Informative.... Thank you
+Junaid Syed my pleasure, thanks for watching :)
+LondonCityGirl How can we take advantage of this?
+leonardo h What do you mean?
Kartheyan Sivalingam Knowing Relativity helped create the GPS.
Kartheyan Sivalingam Theory of Relativity gave us Nuclear power plus the GPS.And medicine!REEEAAALLLYYY.QUANTUM MECHANICS
DETERMINES QUANTUM PARTICLES.THIS IS PHYSICS
I don't understand perfectly the general theory of relativity. But special theory was explained very well
You can't understand general one but you understood special one 😂
@@rifatzehra6546 are you dumb? The Special theory was published 10 years prior
I was so happy in my life. Nothing really mattered to me. Everything seemed so beautiful and magical.
Then I saw Theory of Relativity.
My thoughts are now devolving.
Thank you Einstein.
Special theory of confusion. I mastered this one. Next is of relativity. Let's go
londoncity girl u r a very Beautiful person.. cuz of the way u explained it.. to the point no rubbish very precise and very simplified illustrations... no irrelevant time wasting gimmicks around in the video... saw 3 videos on relativity nd urs was the most easy to understand for my brothers who thought interstellar was based upon an imagination 😂😂
That was REALLY good, probably the best explanation I have seen! No nerds getting off on complex explantions just simple, clear dialogue with effective graphics - BRILLIANT - Well done!
Just one point...... the bullet still has it's cartridge attatched! ; )
John Dwyer thank you! So pleased by the feedback as the aim was to keep it simple for people who have an interest and curiosity but aren't planning to study for a phd in physics :)
Okay. This my 3rd video of this theory now I finally understand it. Thanks for this
Nothing simpler explanation ever been created If Einstein is alive, he would gift his Noble Prize for this video!
Gopinath T that's high praise indeed, thank you :)
So basically in theory we can travel forward in time but not backwards cool :D
John Anthony Martinez pretty much sums it up :)
You can travel backwards in time if you go past the speed of light.
Now I can look smart in front of people.
@tommy cane115 calm down buddy, no one here is figthing with you
@tommy cane115 ogga boga
@tommy cane115 Here you are again, saying bullshit. Anyway, what you said about the other video that black hole was made because of the fact that einstein's theories can't be proven. Well, apparently, a black hole has been observed recently proving Einstein's theory once again lmao
@tommy cane115 then let me ask you..do you know more than tesla?or do you know more than Einstein perhaps?
@tommy cane115 Your parents clearly didn't take good care of you. Here you are making insults on people for the past 3 months. Get a life and stop using the same sentences.
wish i could like this 10-20 times, thank you so much :)
*If anyone is confused, here is a quick explanation:* Say there are two sets of mirrors that are both bouncing a beam of light back and forth vertically. One set of mirrors is traveling at the speed of light horizontally while the other is stationary. Pretend you are moving at the speed of light along side the moving set of mirrors. The light that is bouncing between the moving mirrors is traveling a greater distance in a shorter amount of time. That means the light beam is traveling faster than light. Of course, there is nothing in the entire universe that can go faster than light, so in order to compensate for this paradox, time -according to the person moving with the moving set of mirrors - goes slower in order for light to travel a greater distance in the same amount of time as the stationary set of mirrors. Basically, time has to slow down in order for you to travel a greater distance in the same amount of time as something staying still (AKA speed=distance/time)
James Maniac so essentially, where the speed of the ball being thrown in basic relativity increases, the speed of light is constant so time must move slower insetad
Eric Stecher Exactly!
instead*
Actually, you can travel back in time, you just need a flux capacitor and 1.21 gigawatts of electricity!
And then try not to loose that magazine 😂
And a velocity of 88 mph in a DeLorean Motor car: Ingredients Bro:
Hey you! Get your damn hands off her!
Sure, try it ANOTHER TIME
The hard part is getting a Delorean up to 88mph. Now that’s almost impossible 😄
It is the clearest explaination of relativity I have come across.
Very intriguing! I didn't quite grasp it all right away and am going to watch the video several times over again! It's so interesting.
I can't do English well, but you make me writing comment now. :-)
It was so easy to understand!!
Thank you for making this video!
SE Park you have great English :) Thank you for taking the time to write such a nice comment. It's much appreciated :D
Hang on in the first illustration when the ball is thrown to the back of the truck isn't it going 50-10=40mph? Then when it's thrown back it is at 60.
Yep - that's in the description :) And I think I added an annotation too a while back.
Not relative to the kids throwing the ball. Only to someone stood on the road.
no the truck and ball r moving in opposite directions in that case so it is 40+10 50
prudvi raj no its not. When you consider the earth's spin and the fact we are in a galaxy that's moving what is the real speed of the ball? This is the relative bit of relativity. It only makes sense to talk of things moving relative to one another. so the ball is only moving at 50 mph relative to someone stood on the ground, but between the kids it is moving at 10 mph.
mercurion1000 when you know you are getting an F, its time to get bullshit about blackholes....
Doesn't length contraction take place in the direction of the object's motion? I mean the mirrors are moving along X axis, their length along X axis will reduce, but not the distance between mirrors in Y axis...
+Maruf Sajjad yep, you're right - it's in the direction of motion :)
One of the best explainers I've seen so far!
The narration was neat and clean. Kudos!! to the girl from the London city.
Raghavendra Prasanna thank you! Appreciate your positive feedback! :D
LondonCityGirl I agree with Raghavendra Prasanna, thanks for the simple explanation
The best explanation of relativity i’ve watched until now ! Thankyou !
That's interesting....Thanks Einstein for thinking so much about this.
Hence, time dilation and length contraction is necessary so that the speed of light is the same for all, that is 186,000 miles per second, I'm trying to wrap my head around the theory of relativity. Time is relative, not constant. Thanks so much, wonderful video.
Another interesting point is that just like the clocks slowing down when in motion at very high speeds (comparable to c) , our heart rate, breathing rates, etc also slow down (relative to the stationary observer) because these can also be considered some biological clocks. This would mean that ageing is slowed if we move at very high speeds.
And btw it was funny to see the TARDIS at 4:46 XD
+Neha The Jedi Awesome that you noticed! :D
yups!! :D +Neha the Jedi
So what is a person's death in this perspective, his biological clock's freezed or is he traveling at the speed of light?
From the perspective of the person traveling at the high speed, though, their life doesn't actually seem to last any longer.
i think it seem to life longer acc to the people on the Earth but acc to himself his life is still the same
A very lucid explanation of Einstein's theories. I enjoyed watching the video, thanks a lot for this wonderful piece of work.. well done..
Sandeep Chebrolu thank you Sandeep - really appreciate you're leaving such a positive comment! :D
Clocks being different:
The forces acting upon the clocks are different, which acts upon the clocks in ways to change their respective "time".
Gravity is different on different spots on the Earth as well as magnetic field strengths may be different as one moves and/or the field moves through it. While not all matter is considered magnetic, all matter can be affected by magnetism due to the magnetic fields generated by the moving electrons in atoms.
+Charles Brightman I was thinking the exact same thing the clocks could have been affected by gravity but that would up set the experiment
+Michael Towler Not only gravity, but recently I believe some people received a noble prize finding out that neutrinos have mass. As neutrinos pass through certainly aircraft and therefore even a clock on an aircraft, it would seem to me that any neutrino impacts traveling at high speed in addition to the speed of the aircraft would affect the clocks on that aircraft. Albeit probably only tiny impacts, but probably cumulative as well. Then also the variability of the Earth's magnetic field which would affect all matter as a moving electron in an atom would generate a moving magnetic field that would be acted upon. Since the "time" difference between the stationary clock and the moving clock is only very small, this sure seems very reasonable to me utilizing known laws of physics.
I have watched many videos on the same topic and believe me this one is the best👍🏼
I watched several videos to understand but you have made it simplest relatively
Great video, thank you. I keep thinking that, generally speaking, we're using multiple concepts derived from one man's amazing intellect and even though most of Einstein's theories have been validated, we will very likely find his work as one step in the ladder of knowledge (similar to Newton's work). It seems like there was a lot of work necessary to ensure the speed of light remains constant for all observers, e.g., time dilation and length contraction. My humble, uninformed guess is that we'll find exceptions and limitations to the equations that Einstein developed, and one day be able to travel at speeds beyond the speed of light. However, odds are I won't be around to pat myself on the back.
Really going out on a limb saying Einstein didn't have everything figured out and there's more to reality than what he figured out lol
5:21 "This is why we cannot travel back in time. We simply have not been able to reach a greater speed than the speed of light."
:))
The fastest men have ever travelled was on Apollo 10 re-entering Earth at 0.0037% lightspeed (around 7 miles / 11 km. per second). That's when we missed the best chance to "be able to reach a greater speed than the speed of light".
Per hour or per minute?
Muhammad Mirsab My bad. I meant... per second. It's 11 km/s.
:)
I'll fix that.
sarsunflower You would actually need greater than infinite to go faster than light. It takes infinite energy to reach it. That's why the "fun to think about" tachyons exist faster than light, they do not accelerate to that speed.
sarsunflower You'd still not get to faster than the speed of light.
think of speed, mass, and energy as a right-angle triangle. if you have mass (the vertical part of the triangle) no matter how much energy you put in (the horizontal part of the triangle), the angle of the hypotenuse (the long side) would never be flat.
By saying you can go backwards in time with enough energy is like saying you can make a right-angle triangle start bending the other way by making the length of the horizontal line bigger.
l'ombelico del mondo i thought that if an object exeeds the speed of light it mass has to be infinite?
I suggest anybody who is a beginner to watch this video first. I did it and understood everything very well. Then I watched some other videos where I found some better explained details, but without this video first, I would not understand anything. Thanks a lot.
"It is said that once einstein was asked to explain the theory of relativity. He said, put your hand on hot stove for a minute it seems like an hour. But, sit next to a beautiful woman for an hour it seems like a minute. That's relativity."
sit next to an ugly woman for one second it seems like a decade that's time dilation
@juveman123 haha u r right
thank you so much, this was a great concise video :)
Time dilation can be observed when your wife says she needs 5 minutes to get dressed. On your watch it passed 45 minutes, but for her it’s still 5 minutes 😂
great
😮
Graet example u must be awarded for that😁😁😁
Thanks! That explains everything!
I asked my science teacher a bunch of questions that are not even taught in university… I wanted to ask my teacher about this but I guess it’s not that good to bombard my teacher with a bunch of questions. And I’m here :) Good video, nice explanation :D(I’m 12 lol)
This is the most interesting video i have ever watched i loved it 😚😚😚😚👏👏👏👏👍👍👍👍👌👌
Would have been glad to have you as my science teacher.
Oh my god, this like clears up all confusion. I can't thank you enough for this video. Could you post some sources for this info though? Thank you so much.
if you rotate the clock parallel to the direction the photon is traveling and approach the "speed of light" no more bouncy bounce, we EMITTIME, the speed of undivided light is zero, only divided light moves, also what we call "gravity" is universal compression, a push from above, search black and white photos of jupiter to see how its moon is pushing on the eye of jupiter, there is mutual repulsion between all bodies in space, that is why there are no meteorites in any meteorite craters, see patomski crater, non perfect 90 degree angle, no impact
Great video! As an engineer I want to point out that a bullet does not travel with its cartridge as in 4:50-5:30.. this is often portrayed wrongly. A cartridge holds the powder which is ignited by the primer. This rise in pressure due to combustion causes the bullet (the yellow part in this video) to separate from the cartridge and be pushed through the barrel. The cartridge remains behind and some of this energy is used to eject it out the side. In some cases it is ejected manually by the operator.
the video is way better than others but I am still confused
Good thing you didn't watch the videos she basically stole the animations from: ruclips.net/video/30KfPtHec4s/видео.html
ruclips.net/video/G-R8LGy-OVs/видео.html
When you are inside plane or train, are you able to feel that plane or train is on the move, similarly being inside earth we cannot feel our movement or earth's movement,
How many of us are watching this at night instead of sleeping
I have better things to watch them this. Like a professor's lecturer on relativity.
I am
Never found such topics explained easier than this.... simply awesome
That's the reason
why Hussain bolt never get older.
*Usain.
Holy
HAHAHA
I really enjoyed this video. It really cleared my doubts. Thankyou. 😇😇😇😇😇👌👌
1:25 Time Dilation
2:45 Speed = Distance/Time
3:33 Special Theory of Relativity- Length Contraction
4:38 Spacetime/Time Travel
5:15 Infinite Energy could send one back in time?
5:30 General Theory of Relativity (warping of space time)
6:17 How do we know it is true?
- GPS
- Clocks Out of sync
I'm sure someone else has pointed this out, but the length contraction only happens along the axis of motion, so the boy should be drawn thinner but not shorter. Also, to clarify, the boy in the ship doesn't experience time to be slower. To him, everything is normal in the ship. It's only from the perspective of someone on Earth (or any other reference frame) that the ship's time is dilated. And likewise from his perspective, everyone else's clocks are slow.
Thanks for the video!
This 2:38 is particularly difficult for us (humans) because we view “time” as something determined by a clock; clocks watches are just instruments Homo sapiens use to have some gauge or measurement of time, like a measuring tape to measure the length or width of something.
Length contraction only works in the direction of movement. I think showing the mirrors getting closer when it is moving side to side is a little misleading. The light beam should be going side to side if you are showing movement side to side. The clock would only get smaller in the direction of movement. It would be skinnier. Not smaller.
That's exactly what I was thinking, but wasn't too sure. Thank you for clearing that up for me.
this comment needs more likes. the author make kind of an unapologetic mistake... she should know the material before making a video on it
Great way of thinking..
A LITTLE MISLEADING? It's flat-out wrong. And it's not just the illustration, the monologue also matches that picture, she thinks that the length contracts side to side and opposes the effect of the light taking longer per cycle to reflect back and forth. It's not a little misleading, it's flat out talking out of her scientifically illiterate ass.
Oh that explains why my clock in the car shows a different time. Thank you Albert!
Jurasim Leinad what? No
No 😂😂
@@robinmalan4016 He's just joking lol
Awesome 👍🏻👍🏻👍🏻 Very Nice Explanation.. Concluded after watching many vedio..
So we are grow by the time? Like if you were to travel somewhere 2 years away at the speed of light and you come back and your friends are 50 years older than you. Does that mean us humans grow by the time, not because our body just grows?
I think english cus its good of a language and we not are grow by time. We the grow by space time.
Our body "grows with time".....so if time is different in two different frames.........
If you travel at speed of light, you won't be human againg. Do not try at home. The time its just a success that never stop or return. We grow according with our biological information .
Time is just a measure of how much things can happen. When we say time runs slower, we mean that less things can happen for that observer.
I'm dead
cool, you explained it well ! good animations as well. so elegant
Thanks.. It explains a lot more than i expected..
Yes. Good. Very simple to understand. Very nice. Thanks.
thank you i 've understood i've Been searching for years and this is the brs explanations i want more Videos
I'll do my best to publish more frequently :)
How do we determine whether its Alex or Bill that is "moving" in section 2 considering that speed is relative per section 1?
Classical relativity in a nutshell:
A truck moves at 50 mph, and ball inside truck moves 10 mph. The boy is looking at the truck and the WHOLE FUCKING UNIVERSE IS IN MOTION BITHCASSSSSS
+The sky is falling because tomatoes are really annoying. i love you man
+The sky is falling because tomatoes are really annoying. I loled. SCIENCE BITCHHH
The speed of the ball is relative to the motion of the truck. The speed of Alex and EVERYTHING ELSE on earth, is relative to the movement of EVERYTHING else in the universe!
The sky is falling because tomatoes are really annoying.
lol bith cas
Nice video. Philochrony is the theory that describes the nature of time and demonstrates its existence. Time is magnitive: objective, Imperceptible (intervals) and measurable.
this video was really easy to understand!
Kiran Mahato I'm glad you thought so :)
your huge
Too bad it's wrong. See my post above.
Most things that are stupid and wrong are easy to understand. It pisses me off to see comments like yours. You think you've learned something but it's the blind leading the blind. She doesn't know what she's talking about, and just talking about her vague understanding of it. She thinks that objects shrink down in every dimension the faster they go for shit's sake, that traveling fast is a veritable shrink ray. And now if someone comes up to you, because she made a video about her ignorant misconceptions with a fake pretense of authority and you watched it, you might tell them about how objects shrink down when they go fast and they'll say "I don't think so," and you'll say "no, it's true, I saw a video about it on the internet and everything!"
@@medexamtoolscom what? What says in this video is true . I am a physics student myself and i can confirm this.
wow thanks this video was really helpful I didn't no any of this stuff
Sooooo thats why i alwayz late to class ! thanks for the excuse :)
Umm, I have a question!i!i If everything is not in absolute motion then how do you add the earth to that equation. When it is constantly in motion because of gravity and the only reason it could stop is if GRAVITY entirely stoped! (please answer)
Every moving object is at rest in it’s own frame of reference
My question is what happen if space man and earth man watch each other by live video.
Are earth man would be so fast for space man or space man would be so slow for earth man?
logically its not,but i cant explain the details how it work
For some reason I think yes. Because based on the video time slows down in space. If the clocks on the same time were experimented on the space and earth was on sync before leaving earth I guess it's the same with both people watching as the clock both running and both on the same time.
Each would see the other moving slower, and both would be correct. However, if you actually tried to return to the earth to compare your clocks, you'd find that much more time had passed on the earth than had for you. This is because you changed reference frames (you accelerated in order to stop and turn around). *All* things are not relative, just uniform motion in a straight line. Once you start accelerating, you keep changing reference frames and you'll find that suddenly your motion becomes the "real" motion.
If there were twins, and one of them left in a ship near the speed of light and the other stayed on the earth, and after travelling for a long time the twin on the ship turned around and came home, that twin would be younger than the other, by an amount depending on their speeds and distance traveled.
no they were in synchrony cuz of Einstein's theory
Wait i didn't get the last part! how do the clocks show different times? the clock is a mechanical device after all, this is the concept of time that delays or outrun, meaning that when I am on the plane with a particular speed, my time is conceptualized differently than a person standing on earth, but how does it effect the movement of the clocks in my hand and his hand??
Travel doesn't effect the movement of your watch, i think it warps space-time. As you're moving through space, your time slows down relative to someone standing still 🤔 this is reflected in the value displayed by your watch
Agree that this video failed to give a satisfactory explanation and actually caused confusion on this point. The answer is that time passes faster at higher altitudes relative to lower ones (because gravitational potential is greater) and passes slower for objects moving at higher speeds relative to those moving at slower speeds. The clocks in this experiment were off by nanoseconds, not whole minutes. Showing a difference of whole minutes rather than the imperctible difference of nanoseconds led me to question why flying has never caused my watch to be noticeably out of sync with my clock at home as a result of my watch's daily speed and altitude increases relative to the clock's.
It doesn't effect the mechanical movement. Think about it. From your perdpective, you are stationary, so it must work the same way. It is because you have less time.than a stationary observer on the ground. It's like a strange tunnel. When you go through the tunnel, the path is very long, and when you go next to the tunnel, the path length is normal. It's strange, but it's also reality.
The real theory of relativity is simply this : The more money you have when you die, the more relatives will show up for the reading of your will.
Well explained by this channel very good so thank you for this.. ..... ......🙏