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66,080 results

Dialect
Why Can't Matter Travel Faster Than Light? The Problem of Relativistic Mass.

The inertia of a body increases with its speed -- but what causes this strange phenomenon? And what does it reveal to us about ...

21:06
Why Can't Matter Travel Faster Than Light? The Problem of Relativistic Mass.

45,685 views

5 months ago

Dialect
How the One-Way Light Problem DISPROVES Einsteinian Relativity

Here the One-Way Speed of Light Problem is examined in thorough detail, and its inarguable consequences for Einstein's Theory ...

22:50
How the One-Way Light Problem DISPROVES Einsteinian Relativity

48,703 views

2 months ago

Dialect
Relativity Has Nothing to Do With Space or Time, Apparently

Did you know that the Theory of Special Relativity has never made any claims about the nature of space and time? Us neither.

20:16
Relativity Has Nothing to Do With Space or Time, Apparently

22,012 views

2 months ago

Dialect
The 4th Dimension in Relativity isn't Time - it's Space.

Our reality is a 3 + 1 pseudo-Riemannian spacetime manifold whose intrinsic curvature manifests itself as gravity, right? Well no ...

12:06
The 4th Dimension in Relativity isn't Time - it's Space.

177,904 views

1 year ago

Paul M. Sutter, Ph.D.
How to Understand Gravity: The Road to Relativity (Part 4) - Ask a Spaceman!

Part 1: https://youtu.be/1J54o1T6jwE Part 2: https://youtu.be/wOoV7MbPCxg Part 3: https://youtu.be/b9K5sq5AlhA Full podcast ...

10:33
How to Understand Gravity: The Road to Relativity (Part 4) - Ask a Spaceman!

9,246 views

7 years ago

The Documentary Channel
PBS Light Falls Space Time and an Obsession of Einstein

Take a theatrical journey with physicist Brian Greene to uncover how Albert Einstein developed his theory of relativity. In this vivid ...

1:24:40
PBS Light Falls Space Time and an Obsession of Einstein

411,907 views

6 years ago

Galactic Journey Together!
Einstein's Equivalence Principle: Why Objects Fall at the Same Rate – Neil deGrasse Tyson Explains

(c) Neil deGrasse Tyson / StarTalk / Full video: https://www.youtube.com/watch?v=XrJzUqX520k Einstein's equivalence principle ...

0:45
Einstein's Equivalence Principle: Why Objects Fall at the Same Rate – Neil deGrasse Tyson Explains

38,109 views

1 year ago

Sync'dUp
Einstein vs Newton: How Relativity Redefined Gravity

In this quick-explainer video, we dive into how Isaac Newton's laws of gravity held sway for two centuries — then Albert Einstein ...

0:48
Einstein vs Newton: How Relativity Redefined Gravity

3,238 views

5 months ago

Dialect
How Superposition Causes Length Contraction -- And Explains the Principle of Relativity

What causes relativistic length contraction? Drawing inspiration from contemporary theories of wave mechanics, we tackle this ...

23:08
How Superposition Causes Length Contraction -- And Explains the Principle of Relativity

122,771 views

1 year ago

Aula Rostagni UniPadova DFA
Tim Maudlin - The Great Rift in Physics: Tension Between Relativity and Quantum Theory

Full Title: The Great Rift in Physics: Tension Between Relativity and Quantum Theory Speaker: Prof. Tim Maudlin Affiliation: New ...

2:02:42
Tim Maudlin - The Great Rift in Physics: Tension Between Relativity and Quantum Theory

14,108 views

Streamed 10 months ago

Paul M. Sutter, Ph.D.
How to Understand Gravity: The Road to Relativity (Part 2) - Ask a Spaceman!

Part 1: https://youtu.be/1J54o1T6jwE Full podcast episodes: http://www.askaspaceman.com Support: ...

9:44
How to Understand Gravity: The Road to Relativity (Part 2) - Ask a Spaceman!

11,662 views

7 years ago

Prof. Halim Boutayeb
Heaviside, Tesla, Essen, and Engelhardt about the Theory of Relativity (Hedra AI)

00:00 Heaviside 00:19 Tesla 00:34 Essen 01:12 Engelhardt Heaviside, Tesla, Essen, and Engelhardt about relativity Videos ...

1:32
Heaviside, Tesla, Essen, and Engelhardt about the Theory of Relativity (Hedra AI)

397 views

1 year ago

David Butler
How Fast Is It - Chapter 5 - General Relativity II - Tests (4k)

4:25 Error in the metric spacetime interval in polar coordinates. Should be sin(theta) instead of cos(theta). text ...

32:32
How Fast Is It - Chapter 5 - General Relativity II - Tests (4k)

67,298 views

2 years ago

Space Startup News
Is Relativity Space Doomed… or About to Change Everything?

In March 2025, former Google CEO Eric Schmidt stepped in to save Relativity Space from the brink of bankruptcy with a massive ...

7:43
Is Relativity Space Doomed… or About to Change Everything?

2,836 views

1 month ago

Project TMRO
Google Billionaire Saves Relativity Space

Eric Schmidt, former Google Exec, and a billionaire, has purchased a controlling stake in Relativity Space, and replaced Tim Ellis ...

7:58
Google Billionaire Saves Relativity Space

2,622 views

1 year ago

SiMonnProd
⚠️ Relativity Breaks Down in Black Holes—but Quantum Physics Still Works? 🤯 | Neil deGrasse Tyson

Did you know Einstein's relativity has limits? It can't describe the center of a black hole! 🎙️ Neil deGrasse Tyson explains why ...

0:25
⚠️ Relativity Breaks Down in Black Holes—but Quantum Physics Still Works? 🤯 | Neil deGrasse Tyson

6,398 views

1 year ago

Harry Gifford
Geometric effect of special relativity

Shows the geometric effects of special relativity. The camera is moving close to the speed of light near a bunch of pink cubes.

0:45
Geometric effect of special relativity

1,702 views

5 years ago

Matthew Francis
Relativistic Beaming

When a star or other light-emitting object is moving close to the speed of light relative to an observer, it exhibits something called ...

0:11
Relativistic Beaming

10,635 views

12 years ago

Prof. Halim Boutayeb
Revisiting Quantum Physics and the Theory of Relativity Through Classical Electromagnetism

This presentation revisits foundational physical phenomena—Compton scattering, blackbody radiation (Planck's law), and the ...

2:01:12
Revisiting Quantum Physics and the Theory of Relativity Through Classical Electromagnetism

489 views

6 months ago

David Butler
Classroom Aid - Relativistic Beaming

Text at http://howfarawayisit.com/documents/ This is the How Far Away Is It video book 2019 review. It was yet another interesting ...

2:31
Classroom Aid - Relativistic Beaming

8,987 views

6 years ago