Science ABC
Science ABCTime dilation and Einstein’s theory of relativity go hand in hand. Albert Einstein is the most popular physicist, as he formulated the theory of relativity, which gave the Energy mass equivalence formula and is directly related to time dilation. But what is time dilation? Time dilation and space time are interrelated. Einstein made one of the most important contributions to physics and had the concept of space time explained. A simple explanation of space time is that it is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. But it is very important to understand that the general theory of relativity and the special theory of relativity are different. In this short animated video, we give a simple explanation of time dilation and Einstein’s theory of relativity and also explain how time slows down in a moving vehicle!
#science #animation #timedilation #TheoryofRelativity
References:
https://faraday.physics.utoronto.ca/PVB/Harrison/GenRel/TimeDilation.html
http://newt.phys.unsw.edu.au/einsteinlight/jw/module4_time_dilation.htm
https://web.pa.msu.edu/courses/2000fall/PHY232/lectures/relativity/dilation.html
http://www.physics.nyu.edu/~ts2/Animation/Time_dilation.html
Original Article Link: https://www.scienceabc.com/nature/universe/time-dilation-why-does-gravity-slow-down-the-flow-of-time.html
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Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
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35 Comments
@jbcvabeach82
02/19/2025 - 7:49 AM-The thing that confuses me about this is how time is measured. Is it really "time" that is being measured or the perception of light photons as an observer? The video says that when Einstein is on the train, the clock behind him stops moving. But that's only because he is moving as fast as the light photons so of course they appear to not move, but thats light, how is it correct to say that "time" stops? I hope that made sense lol
@joonmyunkim4461
02/19/2025 - 7:49 AMMy brain is now broken trying to understand all this
@DiskY_T
02/19/2025 - 7:49 AMOk let me just say this once and for all for all to hear. TIME DOESNT EXIST. The only time that exists is relative time which is believed to be a Fundamental Quantity, But it is in fact a derived quantity because it doesn't exist unless compared with another Fundamental Quantity ( at least I Think So…). and yeah that clock slowing down is not time moving fast, its you who is moving fast and time is moving same everywhere. Lt's say time does change its speed (Rate) then it will only be a direct effect of gravity ( attraction) and if time is affected by these forces then it indicates the existence of Nano-Atomic (smaller than atom (I just came up with that name) ) particles that densely fill the world ( meaning space is not actually empty) and that the world is more fictional than fiction itself… how wonderful… imagine a whole other part of the world we haven't explored yet just because nothing that we can interact with makes an adjustment interaction with this ( a term I just made for a interaction/reaction that doesn't change the change the position of other instead just overwrites it by changing it's state, like a whiteboard when you draw ). yeah I went too far again… all I'm saying is the atomic clocks probably slow down because of some other reason like Gravitones… maybe the downward movement is just a little faster because of gravity, try putting a spring on each gear of a normal clock for a change (I don't really know how to remove tension on an atomic clock that's why I said an example with normal clock…). Anyway Goodluck skipping time…🤪.
@kaffir76
02/19/2025 - 7:49 AM5:50 you lost me here! 😂😂
@JennieDebruijn
02/19/2025 - 7:49 AMIm not going to argue with this from a scientific standpoint because of course it works like that, but the definition of "time" has no relation whatsoever with light, so the wording is kinda scuffed (still very cool though)
@mr.blobberry3112
02/19/2025 - 7:49 AMSo that's what they mean by "working out makes you age slower".
@ronosys
02/19/2025 - 7:49 AMBecause photons will reach relatively slow to einstine if he is moving 99% speed of light 😊😊😊😊
@lloydd.haugeniii2679
02/19/2025 - 7:49 AMThis really doesn't make this theory more accessible.
@croschke
02/19/2025 - 7:49 AMFlash is the theory of relativity
@FAAD-999
02/19/2025 - 7:49 AMHence we are in delusions!
@kekaharris6618
02/19/2025 - 7:49 AMIf time slows down at the speed of light then why isnt light its self still 😅
@DeathScavenger420
02/19/2025 - 7:49 AMYour feet are older than your head due to the circulatory system / the distance of your heart relative to your head or feet.
@Hypercannon77
02/19/2025 - 7:49 AMMy family and I frequently get precognitive dreams, you think maybe our brains are somehow piggybacking on time dilation? Maybe this is how psychics are explained 🤔
@CountrySteaks
02/19/2025 - 7:49 AM5:54 Thanks for the random black speck beneath the spacecraft that made me try to wipe it away.
@abigailcarlson8994
02/19/2025 - 7:49 AMCan someone clarify whether they said "to compensate for the "?"". I only hear 'crease and it is supposed to be increased or decreased. I think closed captions has it wrong.
@AlexPanea
02/19/2025 - 7:49 AMIt seems like the falling person has a clock that just tics differently. How do we make the jump to the conclusion that also biological processes slow down? It seems to me that if we don't know what time is, and we measure it's rate based on imperfect mechanical systems, we shouldn't jump to conclusions about it going faster or slower. If I am obviously missing something, please correct me!
@juanguio5932
02/19/2025 - 7:49 AMFor the lightning thought experiment, wouldn't the light from the right bolt never reach the train — if it is really traveling at light speed?
@Pikapika__gaming495
02/19/2025 - 7:49 AMHe didn’t got the answer at the same time when he throught this he take his time to understand it So he also can if go give your time and concentration to it
@HookBeak_66
02/19/2025 - 7:49 AMThis is complex stuff to take in, what made me
chuckle " your head is slightly older than your feet "
I presume biologically speaking, the brain needs to be
active. to synchronise the development of everything else?
Space time/distance the whole continued expansion is a
truly fascinating subject.
@hepiiyr5769
02/19/2025 - 7:49 AM7:08 i still dont understand this part, help
@SolitaryCreature1311
02/19/2025 - 7:49 AMFun Fact: An average person experiences 88 milliseconds of time dilation in their whole life.
@MichaelBarry-gz9xl
02/19/2025 - 7:49 AMA "mere" patent clerk… 🤔
@cmhardin37
02/19/2025 - 7:49 AMWhy would light get to Einstein first according to person on train?
@Chrisjk44
02/19/2025 - 7:49 AMEinstein done all this without ChatGPT?
@TheRealFreznoBob
02/19/2025 - 7:49 AMWhat idiot couldn't understand something that has been thrown in his face all his life? It is very simple to understand but understanding doesn't equate with believing. I guess you don't really understand relativity so you have no option but to believe it. Learn more and you too will have the ability to pick and choose your theories based on how they fit with reality. THE REAL TRUTH SON is that until there is one theory that deals with quanta, real world, and cosmic scale phenomena all at once then there is no knowledge, only theories. In 1920 people knew this but today they think three different physics that don't correspond suffice. When one theory brings together quantum scale physics, that is currently represented by Quantum Mechanics, human scale physics, currently represented by Newtonian Physics and cosmic scale physics, currently represented by Relativity, then that Theory will replace these three entirely. That is the science that the whole world is waiting for and what we have currently is a broken approximation of science, a collection of invalid theories. I really have no idea why you or anybody else would think that science is settled.
@TheBadassModz
02/19/2025 - 7:49 AMSimply put this as:
Speed of light: c i.e., constant.
If the mass increases, the space time curvature increase & light has to travel more distance making it seem to take more time in usual circumstances. But, as we know s=d/t to make the s constant, both d & s have to vary inversely. As s i.e., c i.e., speed of light is constant so time had to slow (i.e., rate at which time passes has to slow) down keeping the speed of light constant. So time varies with different space-time curvatures.
@bogdan13grbea
02/19/2025 - 7:49 AMhow is this space/time fabric allowing planets to orbit suns, other planets etc on different planes. For example a planet is orbiting sun "horizontally" and another one is orbiting sun at a x degrees angle. Why/how?
@sorterql
02/19/2025 - 7:49 AMThis is how he discovered it? This is bullshit. The light from the sun travels around 8 minutes till it reaches the earth. But the fact that we see the light produced 8 minutes ago doesn't mean that the sun is in the past or that we are in the future.
@shegotmywocchardt
02/19/2025 - 7:49 AMbro im tryna learn bout time dilation n you over here yappin bout Einstein
@Weenis416
02/19/2025 - 7:49 AMTime Travel: Concepts, Possibilities, and Misconceptions
Introduction
Time travel is a concept that has fascinated humanity for centuries, often depicted as the ability to move between different points in time. While widely popularized in fiction, the scientific understanding of time travel is more nuanced. This report explores key theories, misconceptions, and the physical realities of time, emphasizing a critical perspective on common ideas like time dilation and traveling faster than the speed of light.
—
Key Misconception: Speed of Light and Time Travel
A prevalent notion in discussions of time travel is that moving faster than the speed of light enables one to travel backward in time. However, this idea is often misunderstood.
1. Observing the Past, Not Traveling Through It:
When moving faster than light away from an object, you are not physically traveling back in time. Instead, you are observing the light that the object emitted in the past.
For example, if you travel one light-year away from Earth at a speed faster than light, the light reaching you would display Earth as it was one year ago. This effect is a consequence of how light travels through space and not a true reversal of time.
2. The Illusion of Time Dilation:
Time dilation, as described in Einstein's theory of relativity, posits that time slows for objects moving at high speeds. However, this is often misinterpreted as altering the flow of time.
What actually occurs is a shift in how light and information are perceived, not a fundamental change in the passage of time itself.
3. Implications of Light Reflection:
Observing past light reflections gives the impression of looking into the past but does not alter the physical timeline.
The concept of "jumping" into the past by moving vast distances underscores this: traveling a specific distance allows you to view light from that many years ago but does not enable interaction with or alteration of past events.
—
The Reality of Time and Light
Understanding the distinction between observing past light and traveling through time is crucial:
Time as a Perception: Our experience of time is a sequence of events perceived linearly, but the light that allows us to witness these events is subject to delay due to the finite speed of light.
Practical Applications: This principle explains phenomena like the observation of distant stars, where light takes millions of years to reach Earth, allowing us to see celestial bodies as they were in the distant past.
—
Conclusion
The idea of time travel, as popularly imagined, is riddled with misconceptions, particularly concerning the speed of light and time dilation. Observing past events by traveling vast distances at or beyond light speed is a function of physics, not a manipulation of time itself. These distinctions remind us of the importance of separating fiction from the scientific realities of space and time.
—
Would you like further refinement or additional sections on related topics?
@NewJerusalemLark
02/19/2025 - 7:49 AMYeah… It doesn't make any sense. At least not explained like this.
@mathewwilcock6284
02/19/2025 - 7:49 AMDumbest prick on the planet designs something to eliminate he's owe kind .. to much knowledge not enough common-sense. Exactly reason our species will Doom its self . To much brains not enough common-sense. We are breeding our selves out of whats real and important.
@kevinparks3041
02/19/2025 - 7:49 AMI’ll never have the mental capacity or intelligence to grasp this. I’m stuck thinking about a traditional gear operated wrist watch. The gears are designed to measure the passing of one second of time. I don’t understand how two people wearing the exact same watch: one on earth and the other traveling away from earth at speed of light will not observe the ticking of the second, minute, and hour hands the exact same on their respective watches. How does that watch that on the travelers watch not tick 1:1 with the earth bound watch when the gears are still moving identically to another???
@Cārvākā80
02/19/2025 - 7:49 AMI just have a question.
When we say 1 hour of the distant planet = 7 years of Earth, does it mean 1 hour of the planet will take 7 years span equivalent of earth to complete. the passage of 1 hour on earth = 60 mins. we know how much 1 min is and have an idea 60 mins interval. If time slows down for the planet near blackhole means interval of 1 hour is not what we understand by 1 hour on earth as well.
Not sure if this understanding is correct though.
@md.naimulislamrifat9705
02/19/2025 - 7:49 AMgravity makes time go slowerslower then if we made a stron gravitational field in earth like as black hole.and enter the chamber can we be the first man who is time travelling?