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13,900,587 results

Big Think and Sean Carroll
The mind-bending physics of time | Sean Carroll

Become a Big Think member to unlock expert classes, premium print issues, exclusive events and more: ...

7:47
The mind-bending physics of time | Sean Carroll

2,620,980 views

3 years ago

Science ABC
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 ...

8:06
Time Dilation - Einstein's Theory Of Relativity Explained!

9,292,464 views

7 years ago

TED-Ed
Does time exist? - Andrew Zimmerman Jones

Download a free audiobook version of "A Brief History of Time" and support TED-Ed's nonprofit mission: https://adbl.co/2NWYjAh ...

5:16
Does time exist? - Andrew Zimmerman Jones

7,686,705 views

7 years ago

Science ABC
What Exactly is Spacetime? Explained in Ridiculously Simple Words

Spacetime, as a concept, is related to a space that consists of 4 dimensions instead of the regular 3-dimensional space. As early ...

4:56
What Exactly is Spacetime? Explained in Ridiculously Simple Words

450,240 views

4 years ago

TED-Ed
The fundamentals of space-time: Part 1 - Andrew Pontzen and Tom Whyntie

View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie Space is ...

5:06
The fundamentals of space-time: Part 1 - Andrew Pontzen and Tom Whyntie

1,576,066 views

11 years ago

Sabine Hossenfelder
New Physics Theory Explains The Origins Of Time

Go to https://ground.news/sabine to get 40% off the Vantage plan and see through sensationalized reporting. Stay fully informed ...

7:33
New Physics Theory Explains The Origins Of Time

289,262 views

6 months ago

Doctor Who
Is Time Travel Possible? | The Science of Doctor Who | Doctor Who

Is Time Travel really Possible? In this clip Professor Brian Cox - a confirmed Doctor Who fan - undertakes an experiment to see.

4:08
Is Time Travel Possible? | The Science of Doctor Who | Doctor Who

1,972,925 views

11 years ago

Wacky Science
ALL OF PHYSICS explained in 14 Minutes

All of CHEMISTRY: GENERAL CHEMISTRY explained in 19 Minutes https://youtu.be/5iTOphGnCtg Oh yeah also I have Instagram ...

14:20
ALL OF PHYSICS explained in 14 Minutes

9,049,294 views

2 years ago

Beeyond Ideas
The Physics and Philosophy of Time Travel

What if everything we know about time is merely an illusion? Could find a way out of it, by breaking the construct of how the ...

10:17
The Physics and Philosophy of Time Travel

676,570 views

3 years ago

TED-Ed
Who decides how long a second is? - John Kitching

Discover how scientists developed atomic clocks, which use the vibrations of atoms to measure and maintain a globally consistent ...

5:47
Who decides how long a second is? - John Kitching

2,657,741 views

5 years ago

Arvin Ash
4D Spacetime and Relativity explained simply and visually

To study subjects like this more in depth, go to: https://brilliant.org/arvinash -- you can sign up for free! And the first 200 people will ...

14:57
4D Spacetime and Relativity explained simply and visually

679,664 views

4 years ago

PBS Space Time
How Does Gravity Warp the Flow of Time?

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info ...

12:44
How Does Gravity Warp the Flow of Time?

1,416,824 views

5 years ago

Science Time
The Science of Time Explained by Brian Greene

Theoretical physicist, mathematician, and string theorist Brian Greene explains the science of time. As a general definition, time is ...

10:02
The Science of Time Explained by Brian Greene

298,995 views

3 years ago

The Infographics Show
Scientists Reveal How Time Travel Is Actually Possible

Is it actually possible to travel through time? Scientists say "Yes", but what does that actually mean? Check out today's insane ...

8:54
Scientists Reveal How Time Travel Is Actually Possible

2,010,222 views

4 years ago

PBS Space Time
Is ACTION The Most Fundamental Property in Physics?

Learn More About NordVPN at: https://nordvpn.com/spacetime It's about time we discussed an obscure concept in physics that ...

19:40
Is ACTION The Most Fundamental Property in Physics?

1,291,444 views

4 years ago

minutephysics
General Relativity Explained in 7 Levels of Difficulty

Go to https://nebula.tv/minutephysics to get access to Nebula (where you can watch the extended version of this video), plus you'll ...

6:09
General Relativity Explained in 7 Levels of Difficulty

1,784,569 views

5 years ago

Kurzgesagt – In a Nutshell
Wormholes Explained – Breaking Spacetime

Are wormholes real or are they just magic disguised as physics and maths? And if they are real how do they work and where can ...

8:09
Wormholes Explained – Breaking Spacetime

25,367,085 views

7 years ago

BBC
Brian Cox explains why time travels in one direction - BBC

Subscribe and to the BBC https://bit.ly/BBCYouTubeSub Watch the BBC first on iPlayer https://bbc.in/iPlayer-Home ...

5:33
Brian Cox explains why time travels in one direction - BBC

4,168,934 views

14 years ago

PBS Space Time
Quantum Gravity and the Hardest Problem in Physics | Space Time

Viewers like you help make PBS (Thank you ) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE ...

16:41
Quantum Gravity and the Hardest Problem in Physics | Space Time

2,440,771 views

7 years ago

Dr Ben Miles
How Physicists Proved Everything is Quantum - Nobel Physics Prize 2025 Explained

The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis for the discovery of ...

7:18
How Physicists Proved Everything is Quantum - Nobel Physics Prize 2025 Explained

1,285,964 views

4 months ago