### Time Dilation - Einstein's Theory Of Relativity Explained!

Time 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!

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### Time Dilation explained in hindi - Time Dilation क्या होता है? Time Dilation क्यों होता है?

Through this video, We have explained Time Dilation in the Hindi Language.

According to the theory of relativity, time dilation is a difference in the elapsed time measured by two observers, either due to a velocity difference relative to each other, or by being differently situated relative to a gravitational field. As a result of the nature of spacetime,[2] a clock that is moving relative to an observer will be measured to tick slower than a clock that is at rest in the observer's own frame of reference. A clock that is under the influence of a stronger gravitational field than an observer's will also be measured to tick slower than the observer's own clock.

Such time dilation has been repeatedly demonstrated, for instance by small disparities in a pair of atomic clocks after one of them is sent on a space trip, or by clocks on the Space Shuttle running slightly slower than reference clocks on Earth, or clocks on GPS and Galileo satellites running slightly faster

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### Einstein's Relativity: Time Dilation

... Albert Einstein's Theory of General Relativity (Chapter 2): Time Dilation - Slowing Down Clocks.

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EINSTEIN'S RELATIVITY:

Everything in the universe is traveling through space-time at the speed of light - the maximum speed possible. If you are sitting still in space, then you are traveling through time at the maximum speed. But if you begin traveling through space, then your progress through time slows down. Time Dilation and other relativistic phenomena await you in this interesting series, so hurry up and slow down!

1. Basics And Impact In Our Everyday Life

2. Time Dilation - Slowing Down Clocks

3. The Famous Equation E=mc2

4. Gravity And Acceleration

5. Black Holes, Event Horizon & Gravitational Waves

SPACE:

Want to know why we don't have to worry about our sun burning out? It's because long before that happens, the sun will expand so enormously that Earth will be cooked to a cinder. Take a tour through the solar system, learn about the event horizon of black holes and when our galaxy began.

1. Faster Than The Speed Of Light (1/2): The Universe - Created Out Of Nothing?

2. Faster Than The Speed Of Light (2/2): The Expanding Universe

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### Relativity and Time Dilation

A basic tour of relativity, which completely demolishes our usual understanding of space and time, and instead shows that strange things can happen when we travel close to the speed of light.

### क्या है Time Dilation? | Time Dilation - Einstein's Theory Of Relativity Explained!

Time dilation is the theory of difference in the two different clocks in which one is still and other is in motion. There is a slight difference in the time of both the clock’s when the both the clocks are in rest position. Similar thing also happen with a astronaut and his cousin. When the astronaut is in the space other brother is on the earth but after 5 or 6 year when the astronaut come to earth his is slightly younger than his cousin which is on earth. This difference is know by the name of time dilation. Time 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!

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What’s covered in this video:-

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time travel

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Einstein

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special relativity

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यह विडियो देखने के लिए आपका बहुत बहुत धन्यवाद

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इस विडियो को अपने दोस्तों के साथ साँझा करें और इस चैनल को सब्सक्राइब जरुर करें ताकि आप अन्तरिक्ष और विज्ञान से सम्बंधित विडियो को लगातार हमारे साथ जुड़ कर देखते रहें

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FAIR-USE COPYRIGHT DISCLAIMER

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### Full Documentary 2016 - Space Time [General Relativity] - Discovery Channel Documentaries

### Special Relativity: Crash Course Physics #42

This episode of Crash Course Physics is supported by Prudential. Go to to learn how, if you start saving today, you can continue to enjoy the things you love tomorrow.

So we've all heard of relativity, right? But... what is relativity? And how does it relate to light? And motion? In this episode of Crash Course Physics, Shini talks to us about perspective, observation, and how relativity is REALLY weird!

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### Relativity: how people get time dilation wrong

Einstein’s special theory of relativity is notorious for being easy to misuse, with the result that sometimes result in claims of paradoxes. When one digs more carefully into the theory, you find that no such paradoxes actually exist. In this video, Fermilab’s Dr. Don Lincoln describes a commonly claimed time dilation paradox and shows how to resolve it.

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### Theory of relativity explained in 7 mins

Hi everyone, today we explain Einstein's famous theory of relativity! Enjoy ;)

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TIME STAMPS

Part 1: Classical relativity - 0:11

Part 2: Special theory of relativity - time dilation - 1:26

Part 3: Special theory of relativity - length contraction - 3:37

Part 4: Time travel - 4:50

Part 5: General theory of relativity - 5:33

Part 6: How do we know it's true? - 6:18

_______________________

Theory of relativity for dummies

Theory of relativity made simple

Theory of relativity simplified

Time dilation explained

Length contraction explained

Is time travel possible?

Can we travel faster than the speed of light?

How does GPS work?

Classical relativity explained

Classical relativity for dummies

Classical relativity made simple

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Special theory of relativity for explained

Special theory of relativity made simple

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General theory of relativity for explained

General theory of relativity made simple

Albert Einstein's theory of relativity explained

Albert Einstein's general theory of relativity explained

### The Best Test of General Relativity (by 2 Misplaced Satellites)

A launch mishap led to the best experimental confirmation of gravitational redshift. Get a free audiobook with a 30-day trial of Audible: or text VERITASIUM to 500500

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Gravitational Redshift Test Using Eccentric Galileo Satellites:

Disclaimer: It is arguable what is THE best test of general relativity because there are different ways to test the theory. This is the best confirmation of gravitational redshift, which is one of the three original tests proposed by Einstein.

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### Theory of Relativity in Hindi | Albert Einstein | Time Travel | Length Contraction and Time Dilation

Theory of Relativity in Hindi

Albert Einstein

Time Travel

Length Contraction and Time Dilation

This is SHYAM TOMAR and welcomes to Tech & Myths

#TheoryOfRelativity

Albert Einstein is only scientists who did thought experiment and then prove that thought experiment mathematically. general theory of relativity explained by albert einstein at the starting of the 20th century. If you have ever seen albert einstein biography then you will definitely love albert einstein. because he gave revolutionary concepts in physics. He gave general theory of relativity in hindi. and time travel in hindi concept was a revolutionary concept. In the time travel concept, albert einstein explained length contraction and time dilation.

Theory of Relativity – A Brief History

The Theory of Relativity, proposed by the Jewish physicist Albert Einstein (1879-1955) in the early part of the 20th century, is one of the most significant scientific advances of our time. Although the concept of relativity was not introduced by Einstein, his major contribution was the recognition that the speed of light in a vacuum is constant and an absolute physical boundary for motion. This does not have a major impact on a person's day-to-day life since we travel at speeds much slower than light speed. For objects travelling near light speed, however, the theory of relativity states that objects will move slower and shorten in length from the point of view of an observer on Earth. Einstein also derived the famous equation, E = mc2, which reveals the equivalence of mass and energy.

When Einstein applied his theory to gravitational fields, he derived the curved space-time continuum which depicts the dimensions of space and time as a two-dimensional surface where massive objects create valleys and dips in the surface. This aspect of relativity explained the phenomena of light bending around the sun, predicted black holes as well as the Cosmic Microwave Background Radiation (CMB) -- a discovery rendering fundamental anomalies in the classic Steady-State hypothesis. For his work on relativity, the photoelectric effect and blackbody radiation, Einstein received the Nobel Prize in 1921.

Einstein’s theories of both special and general relativity have been confirmed to be accurate to a very high degree over recent years, and the data has been shown to corroborate many key predictions; the most famous being the solar eclipse of 1919 bearing testimony that the light of stars is indeed deflected by the sun as the light passes near the sun on its way to earth. The total solar eclipse allowed astronomers to -- for the first time -- analyse starlight near the edge of the sun, which had been previously inaccessible to observers due to the intense brightness of the sun. It also predicted the rate at which two neutron stars orbiting one another will move toward each other. When this phenomenon was first documented, general relativity proved itself accurate to better than a trillionth of a percent precision, thus making it one of the best confirmed principles in all of physics.

Applying the principle of general relativity to our cosmos reveals that it is not static. Edwin Hubble (1889-1953) demonstrated in 1928 that the Universe is expanding, showing beyond reasonable doubt that the Universe sprang into being a finite time ago. The most common contemporary interpretation of this expansion is that this began to exist from the moment of the Big Bang some 13.7 billion years ago. However this is not the only plausible cosmological model which exists in academia, and many creation physicists such as Russell Humphreys and John Hartnett have devised models operating with a biblical framework, which -- to date -- have withstood the test of criticism from the most vehement of opponents.

Moreover, the very physical nature of time and space also suggest a Creator, for infinity and eternity must necessarily exist from a logical perspective. The existence of time implies eternity (as time has a beginning and an end), and the existence of space implies infinity. The very concepts of infinity and eternity infer a Creator because they find their very state of being in God, who transcends both and simply is.

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### Einstein’s relativity simply explained in Quran - There Is No Clash

Spaceships moving at relativistic speeds appear to be squished in the direction of movement (length contraction). Astronauts measure the seconds ticking by slower in space (time dilation). Watch as we explain how the Qur'an refers to these two key aspects of Einstein's Theory of Special Relativity.

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### Einstein's General Theory of Relativity

Dr. Kako explains general theory of relativity

### What is Time Dilation? - With Special Guest Dr. Brian Koberlein

One of the strangest implications of Relativity is the concept of time dilation; how people moving at different speeds will experience different amounts of time. Dr. Brian Koberlein helps us figure it out.

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Created by: Fraser Cain and Jason Harmer

Edited by: Chad Weber

Music: Left Spine Down - “X-Ray”

One of the most interesting topics in the field of science is the concept of General Relativity. You know, this idea that strange things happen as you near the speed of light. There are strange changes to the length of things, bizarre shifting of wavelengths. And most puzzling of all, there’s the concept of dilation: how you can literally experience more or less time based on how fast you’re traveling compared to someone else.

And even stranger than that? As we saw in the movie Interstellar, just spending time near a very massive object, like a black hole, can cause these same relativistic effects. Because mass and acceleration are sort of the same thing?

Honestly, it’s enough to give you a massive headache.

But just because I find the concept baffling, I’m still going to keep chipping away, trying to understand more about it and help you wrap your brain around it too. For my own benefit, for your benefit, but mostly for my benefit.

There’s a great anecdote in the history of physics - it’s probably not what actually happened, but I still love it.

One of the most famous astronomers of the 20th century was Sir Arthur Eddington, played here by a dashing David Tennant in the 2008 movie, Einstein and Eddington. Which, you should really see, if you haven’t already.

So anyway, Doctor Who, I mean Eddington, had worked out how stars generate energy (through fusion) and personally confirmed that Einstein’s predictions of General Relativity were correct when he observed a total Solar Eclipse in 1919.

Apparently during a lecture by Sir Arthur Eddington, someone asked, “Professor Eddington, you must be one of the three people in the world who understands General Relativity.” He paused for a moment, and then said, “yes, but I’m trying to think of who the third person is.”

It’s definitely not me, but I know someone who does have a handle on General Relativity, and that’s Dr. Brian Koberlein, an astrophysics professor at the Rochester Institute of Technology. He covers this topic all the time on his blog, One Universe At A Time, which you should totally visit and read at briankoberlein.com.

In fact, just to demonstrate how this works, Brian has conveniently pushed his RIT office to nearly light speed, and is hurtling towards us right now.

-----------

Dr. Brian Koberlein:

Hi Fraser, thanks for having me. If you can hang on one second, I just have to slow down.

Fraser Cain:

What just happened there? Why were you all slowed down?

Brian:

It’s actually an interesting effect known as time dilation. One of the things about light is that no matter what frame of reference you’re in, no matter how you’re moving through the Universe, you’ll always measure the speed of light in a vacuum to be the same. About 300,000 kilometres per second.

And in order to do that, if you are moving relative to me, or if I’m moving relative to you, our references for time and space have to shift to keep the speed of light constant. As I move faster away from you, my time according to you has to appear to slow down. On the same hand, your time will appear to slow down relative to me.

And that time dilation effect is necessary to keep the speed of light constant.

Fraser:

Does this only happen when you’re moving?

Brian:

Time dilation doesn’t just occur because of relative motion, it can also occur because of gravity. Einstein’s theory of relativity says that gravity is a property of the warping of space and time. So when you have a mass like Earth, it actually warps space and time.

If you’re standing on the Earth, your time appears to move a little bit more slowly than someone up in space, because of the difference in gravity.

Now, for Earth, that doesn’t really matter that much, but for something like a black hole, it could matter a great deal. As you get closer and closer to a black hole, your time will appear to slow down more and more and more.

Fraser:

What would this mean for space travel?

### Special Relativity and the Twin Paradox

How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time?

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This video was inspired by a special relativity class in high school. Special relativity was one of the first subjects that made me go, “wow, that’s really how the world works?!” It stretched my imagination, as I hope the twin paradox will yours.

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### Time is Relative - The Twin Baby Experiment

Instead of wasting time on instagram, why not spend some time expanding your mind at They make learning fun and easy.

According to the theory of relativity, time dilation is a difference in the elapsed time measured by two observers, either due to a velocity difference relative to each other, or by being differently situated relative to a gravitational field. As a result of the nature of spacetime, a clock that is moving relative to an observer will be measured to tick slower than a clock that is at rest in the observer's own frame of reference. A clock that is under the influence of a stronger gravitational field than an observer's will also be measured to tick slower than the observer's own clock.

Such time dilation has been repeatedly demonstrated, for instance by small disparities in a pair of atomic clocks after one of them is sent on a space trip, or by clocks on the Space Shuttle running slightly slower than reference clocks on Earth, or clocks on GPS and Galileo satellites running slightly faster. Time dilation has also been the subject of science fiction works, as it technically provides the means for forward time travel.

Correction: Einstein published the his theory of Special Relativity in 1905, not 1919. Sorry about that!

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### Albert Einstein's Theory of Relativity

Easy to understand animation explaining all of Einstein's Theory. Covers both Special Relativity and General Relativity.

### Michio Kaku: What If Einstein Is Wrong?

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We'll have to recalibrate everything -- the age of the universe, the age of stars, the distance to the stars, the basic structure of modern electronics, the GPS, nuclear weapons -- all of that would have to be recalibrated and rethought ...

### Complete Solution To The Twins Paradox

One of the most famous paradoxes of all of physics – who's older? Who's younger? and WHY? ***** Thanks to The Great Courses Plus (free trial here: for supporting MinutePhysics *****

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This video is about the famous “Twins paradox” of special relativity, how time can appear to be faster for two different observers at the same time, and which twin really is older (or younger) – the one who stays on earth or the one who flies in a rocket ship to the stars?

Music by Nathaniel Schroeder,

REFERENCES

Muon lifetime and time dilation/relativity:

MinutePhysics video about Time Rotations & Einstein:

Experimental test of time dilation using doppler shift of light:

Lorentz Transformations:

Relativity of Simultaneity:

Paper on twin paradox under constant acceleration:

Taking Cesium atomic clocks aboard airplanes:

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### Length Contraction and Time Dilation | Special Relativity Ch. 5

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This video is chapter 5 in my series on special relativity, and it covers how things that are moving (that is, moving relative to an inertial reference frame) at different speeds appear to be shorter in length... and longer in length. And shorter in time, and longer in time. It all makes sense, I promise, and is clear when you use the Lorentz transformation of coordinates of the events in question, enacted with a mechanical minkowski diagram, aka mechanical Lorentz transformation, aka spacetime globe.

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