-
Special Relativity: Crash Course Physics #42
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!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
published: 23 Feb 2017
-
Special Relativity
How can we describe the speed of light? Are time and space absolute? How do cosmic muons manage to reach the ground? All these answers in 13 minutes!
For more videos, subscribe to the YouTube channel : https://www.youtube.com/ScienceClicEN
And if you liked this video, you can share it on social networks !
To support me on Patreon : http://www.patreon.com/ScienceClic
or on Tipeee : http://tipeee.com/ScienceClic
Facebook Page : http://facebook.com/ScienceClic
Twitter : http://twitter.com/ScienceClic
Google+ : http://google.com/+ScienceClic
Alessandro Roussel,
For more info: http://www.alessandroroussel.com/en
_
To learn more :
https://en.wikipedia.org/wiki/Special_relativity
https://en.wikipedia.org/wiki/Length_contraction
https://en.wikipedia.org/wiki/Time_dilation
published: 09 Sep 2019
-
Special Relativity Part 1: From Galileo to Einstein
We talked a little bit about relative motion in the classical physics course, with Galileo dropping stuff in boats. But once Einstein got his hands on relativity, he went a little nutty with it! The inertial reference frames are back but now we are talking about objects moving near the speed of light, which is where things start to get a little... weird.
Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
EMAIL► [email protected]
P...
published: 11 May 2017
-
Special Relativity | Lecture 1
(April 9, 2012) In the first lecture of the series Leonard Susskind discusses the concepts that will be covered throughout the course.
In 1905, while only twenty-six years old, Albert Einstein published "On the Electrodynamics of Moving Bodies" and effectively extended classical laws of relativity to all laws of physics, even electrodynamics. In this course, Professor Susskind takes a close look at the special theory of relativity and also at classical field theory. Concepts addressed here includes space-time and four-dimensional space-time, electromagnetic fields and their application to Maxwell's equations.
Originally presented in the Stanford Continuing Studies Program.
Stanford University:
http://www.stanford.edu/
Stanford Continuing Studies Program:
http://csp.stanford.edu/
Stanf...
published: 27 Apr 2012
-
How Special Relativity Makes Magnets Work
MinutePhysics on permanent magnets: http://www.youtube.com/watch?v=hFAOXdXZ5TM
Subscribe to Veritasium: http://bit.ly/SuBVe
Support Veritasium- get a t-shirt: http://dft.ba/-vetshirt
Subscribe to MinutePhysics: http://bit.ly/1eVPynh
Magnetism seems like a pretty magical phenomenon. Rocks that attract or repel each other at a distance - that's really cool - and electric current in a wire interacts in the same way. What's even more amazing is how it works. We normally think of special relativity as having little bearing on our lives because everything happens at such low speeds that relativistic effects are negligible. But when you consider the large number of charges in a wire and the strength of the electric interaction, you can see that electromagnets function thanks to the special relat...
published: 23 Sep 2013
-
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...
published: 13 Apr 2018
-
Special Relativity: This Is Why You Misunderstand It
Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free, and the first 200 will get 20% off the annual premium subscription.
Does time really slow down when you move? What about gravitational fields? What's the resolution to the twin paradox and what's up with Newton's bucket. In this video, I tell you how it really works.
👉 Transcript and References on Patreon ➜ https://www.patreon.com/Sabine
💌 Sign up for my weekly science newsletter. It's free! ➜ https://sabinehossenfelder.com/newsletter/
📖 Check out my new book "Existential Physics" ➜ http://existentialphysics.com/
🔗 Join this channel to get access to perks ➜
https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join
00:00 ...
published: 07 Jan 2023
-
WSU: Special Relativity with Brian Greene
Physicist Brian Greene takes you on a visual, conceptual, and mathematical exploration of Einstein’s spectacular insights into space, time, and energy. In just 11.5 hours, using nothing more advanced than high school algebra, journey from Einstein’s earliest musings on the speed of light to his startling realization that time can tick at different rates to his revolutionary discovery of the world’s most famous formula, E = mc2.
This is a more in-depth and mathematical version of the WSU Master Class “Space, Time, and Einstein.” https://youtu.be/CKJuC5CUMgU
#WorldSciU
Watch the class in full or view in segments via the chapter links below.
Experience the associated free online course at World Science U: https://worldscienceu.com/courses/special-relativity-world-science-u/
0:00...
published: 01 Sep 2020
-
Special Relativity simplified using no math. Einstein thought experiments
Einstein's Special Relativity Explained Simply - no math
This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even graduated from high school. Einstein’s theory of special relativity is convention today. But to understand how revolutionary it was for its time, it is helpful to look at what the conventional understanding of physics was during the time of Einstein’s teenage years.
In 1801, Thomas Young had conducted a simple double slit experiment that showed that light behaved like a wave. So the theory about light at the time was that it was a wave. The problem is that a wave, it was thought, had to move through some sort of medium. They called this substance the luminiferous aether.
But in 1887, two scientists by ...
published: 23 Aug 2019
-
Simple Relativity - Understanding Einstein's Special Theory of Relativity
Simple Relativity is a 2D short educational animation film. The film is an attempt to explain Albert Einstein’s Special Theory of Relativity with a simpler visual representation and exciting animation. In a time when our day-to-day life is surrounded by technology, most people find it daunting to understand the science and its application. Simple Relativity is an attempt to excite the viewer about this complex phenomenon of Relativity so that they can approach this, and science in general, with a lot more curiosity rather than inhibition.
published: 01 Sep 2014
8:59
Special Relativity: Crash Course Physics #42
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 ...
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!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
https://wn.com/Special_Relativity_Crash_Course_Physics_42
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!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
- published: 23 Feb 2017
- views: 1256507
12:59
Special Relativity
How can we describe the speed of light? Are time and space absolute? How do cosmic muons manage to reach the ground? All these answers in 13 minutes!
For more ...
How can we describe the speed of light? Are time and space absolute? How do cosmic muons manage to reach the ground? All these answers in 13 minutes!
For more videos, subscribe to the YouTube channel : https://www.youtube.com/ScienceClicEN
And if you liked this video, you can share it on social networks !
To support me on Patreon : http://www.patreon.com/ScienceClic
or on Tipeee : http://tipeee.com/ScienceClic
Facebook Page : http://facebook.com/ScienceClic
Twitter : http://twitter.com/ScienceClic
Google+ : http://google.com/+ScienceClic
Alessandro Roussel,
For more info: http://www.alessandroroussel.com/en
_
To learn more :
https://en.wikipedia.org/wiki/Special_relativity
https://en.wikipedia.org/wiki/Length_contraction
https://en.wikipedia.org/wiki/Time_dilation
https://wn.com/Special_Relativity
How can we describe the speed of light? Are time and space absolute? How do cosmic muons manage to reach the ground? All these answers in 13 minutes!
For more videos, subscribe to the YouTube channel : https://www.youtube.com/ScienceClicEN
And if you liked this video, you can share it on social networks !
To support me on Patreon : http://www.patreon.com/ScienceClic
or on Tipeee : http://tipeee.com/ScienceClic
Facebook Page : http://facebook.com/ScienceClic
Twitter : http://twitter.com/ScienceClic
Google+ : http://google.com/+ScienceClic
Alessandro Roussel,
For more info: http://www.alessandroroussel.com/en
_
To learn more :
https://en.wikipedia.org/wiki/Special_relativity
https://en.wikipedia.org/wiki/Length_contraction
https://en.wikipedia.org/wiki/Time_dilation
- published: 09 Sep 2019
- views: 413553
5:49
Special Relativity Part 1: From Galileo to Einstein
We talked a little bit about relative motion in the classical physics course, with Galileo dropping stuff in boats. But once Einstein got his hands on relativit...
We talked a little bit about relative motion in the classical physics course, with Galileo dropping stuff in boats. But once Einstein got his hands on relativity, he went a little nutty with it! The inertial reference frames are back but now we are talking about objects moving near the speed of light, which is where things start to get a little... weird.
Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
EMAIL►
[email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
https://wn.com/Special_Relativity_Part_1_From_Galileo_To_Einstein
We talked a little bit about relative motion in the classical physics course, with Galileo dropping stuff in boats. But once Einstein got his hands on relativity, he went a little nutty with it! The inertial reference frames are back but now we are talking about objects moving near the speed of light, which is where things start to get a little... weird.
Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
EMAIL►
[email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
- published: 11 May 2017
- views: 209193
1:58:15
Special Relativity | Lecture 1
(April 9, 2012) In the first lecture of the series Leonard Susskind discusses the concepts that will be covered throughout the course.
In 1905, while only twen...
(April 9, 2012) In the first lecture of the series Leonard Susskind discusses the concepts that will be covered throughout the course.
In 1905, while only twenty-six years old,
Albert Einstein published "On the Electrodynamics of Moving Bodies" and effectively extended classical laws of relativity to all laws of physics, even electrodynamics. In this course, Professor Susskind takes a close look at the special theory of relativity and also at classical field theory. Concepts addressed here includes space-time and four-dimensional space-time, electromagnetic fields and their application to Maxwell's equations.
Originally presented in the Stanford Continuing Studies Program.
Stanford University:
http://www.stanford.edu/
Stanford Continuing Studies Program:
http://csp.stanford.edu/
Stanford University Channel on YouTube:
http://www.youtube.com/stanford
https://wn.com/Special_Relativity_|_Lecture_1
(April 9, 2012) In the first lecture of the series Leonard Susskind discusses the concepts that will be covered throughout the course.
In 1905, while only twenty-six years old,
Albert Einstein published "On the Electrodynamics of Moving Bodies" and effectively extended classical laws of relativity to all laws of physics, even electrodynamics. In this course, Professor Susskind takes a close look at the special theory of relativity and also at classical field theory. Concepts addressed here includes space-time and four-dimensional space-time, electromagnetic fields and their application to Maxwell's equations.
Originally presented in the Stanford Continuing Studies Program.
Stanford University:
http://www.stanford.edu/
Stanford Continuing Studies Program:
http://csp.stanford.edu/
Stanford University Channel on YouTube:
http://www.youtube.com/stanford
- published: 27 Apr 2012
- views: 2265501
4:19
How Special Relativity Makes Magnets Work
MinutePhysics on permanent magnets: http://www.youtube.com/watch?v=hFAOXdXZ5TM
Subscribe to Veritasium: http://bit.ly/SuBVe
Support Veritasium- get a t-shirt: h...
MinutePhysics on permanent magnets: http://www.youtube.com/watch?v=hFAOXdXZ5TM
Subscribe to Veritasium: http://bit.ly/SuBVe
Support Veritasium- get a t-shirt: http://dft.ba/-vetshirt
Subscribe to MinutePhysics: http://bit.ly/1eVPynh
Magnetism seems like a pretty magical phenomenon. Rocks that attract or repel each other at a distance - that's really cool - and electric current in a wire interacts in the same way. What's even more amazing is how it works. We normally think of special relativity as having little bearing on our lives because everything happens at such low speeds that relativistic effects are negligible. But when you consider the large number of charges in a wire and the strength of the electric interaction, you can see that electromagnets function thanks to the special relativistic effect of length contraction. In a frame of reference moving with the charges, there is an electric field that creates a force on the charges. But in the lab frame, there is no electric field so it must be a magnetic field creating the force. Hence we see that a magnetic field is what an electric field becomes when an electrically charged object starts moving.
I was inspired to make this video by Prof. Eric Mazur http://mazur.harvard.edu/emdetails.php
Huge thank you to Ralph at the School of Physics, University of Sydney for helping us out with all this magnetic gear. Thanks also to geology for loaning the rocks.
This video was filmed in the studio at the University of New South Wales - thanks to all the staff there for their time and support.
Music: Firefly in a Fairytale, Nathaniel Schroeder, and Love Lost (Instrumental) by Temper Trap licensed from CueSongs.com
https://wn.com/How_Special_Relativity_Makes_Magnets_Work
MinutePhysics on permanent magnets: http://www.youtube.com/watch?v=hFAOXdXZ5TM
Subscribe to Veritasium: http://bit.ly/SuBVe
Support Veritasium- get a t-shirt: http://dft.ba/-vetshirt
Subscribe to MinutePhysics: http://bit.ly/1eVPynh
Magnetism seems like a pretty magical phenomenon. Rocks that attract or repel each other at a distance - that's really cool - and electric current in a wire interacts in the same way. What's even more amazing is how it works. We normally think of special relativity as having little bearing on our lives because everything happens at such low speeds that relativistic effects are negligible. But when you consider the large number of charges in a wire and the strength of the electric interaction, you can see that electromagnets function thanks to the special relativistic effect of length contraction. In a frame of reference moving with the charges, there is an electric field that creates a force on the charges. But in the lab frame, there is no electric field so it must be a magnetic field creating the force. Hence we see that a magnetic field is what an electric field becomes when an electrically charged object starts moving.
I was inspired to make this video by Prof. Eric Mazur http://mazur.harvard.edu/emdetails.php
Huge thank you to Ralph at the School of Physics, University of Sydney for helping us out with all this magnetic gear. Thanks also to geology for loaning the rocks.
This video was filmed in the studio at the University of New South Wales - thanks to all the staff there for their time and support.
Music: Firefly in a Fairytale, Nathaniel Schroeder, and Love Lost (Instrumental) by Temper Trap licensed from CueSongs.com
- published: 23 Sep 2013
- views: 3660691
8:06
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, whi...
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!
#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
If you wish to buy/license this video, please write to us at
[email protected].
Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
SUBSCRIBE to get more such science videos!
https://www.youtube.com/channel/UCcN3IuIAR6Fn74FWMQf6lFA?sub_confirmation=1
Follow us on Twitter!
https://twitter.com/abc_science
Follow us on Facebook!
https://facebook.com/sciabc
Follow our Website!
https://www.scienceabc.com
https://wn.com/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!
#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
If you wish to buy/license this video, please write to us at
[email protected].
Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
SUBSCRIBE to get more such science videos!
https://www.youtube.com/channel/UCcN3IuIAR6Fn74FWMQf6lFA?sub_confirmation=1
Follow us on Twitter!
https://twitter.com/abc_science
Follow us on Facebook!
https://facebook.com/sciabc
Follow our Website!
https://www.scienceabc.com
- published: 13 Apr 2018
- views: 8633584
21:15
Special Relativity: This Is Why You Misunderstand It
Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free...
Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free, and the first 200 will get 20% off the annual premium subscription.
Does time really slow down when you move? What about gravitational fields? What's the resolution to the twin paradox and what's up with Newton's bucket. In this video, I tell you how it really works.
👉 Transcript and References on Patreon ➜ https://www.patreon.com/Sabine
💌 Sign up for my weekly science newsletter. It's free! ➜ https://sabinehossenfelder.com/newsletter/
📖 Check out my new book "Existential Physics" ➜ http://existentialphysics.com/
🔗 Join this channel to get access to perks ➜
https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join
00:00 Intro
00:34 Space+Time = Spacetime
04:30 Proper Time
07:59 Time Dilation
10:21 The Twin Paradox
13:59 Newton's Bucket
15:25 Time Slows Down Near Black Holes
19:30 Learn More on Brilliant
#physics
https://wn.com/Special_Relativity_This_Is_Why_You_Misunderstand_It
Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free, and the first 200 will get 20% off the annual premium subscription.
Does time really slow down when you move? What about gravitational fields? What's the resolution to the twin paradox and what's up with Newton's bucket. In this video, I tell you how it really works.
👉 Transcript and References on Patreon ➜ https://www.patreon.com/Sabine
💌 Sign up for my weekly science newsletter. It's free! ➜ https://sabinehossenfelder.com/newsletter/
📖 Check out my new book "Existential Physics" ➜ http://existentialphysics.com/
🔗 Join this channel to get access to perks ➜
https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join
00:00 Intro
00:34 Space+Time = Spacetime
04:30 Proper Time
07:59 Time Dilation
10:21 The Twin Paradox
13:59 Newton's Bucket
15:25 Time Slows Down Near Black Holes
19:30 Learn More on Brilliant
#physics
- published: 07 Jan 2023
- views: 631016
11:29:00
WSU: Special Relativity with Brian Greene
Physicist Brian Greene takes you on a visual, conceptual, and mathematical exploration of Einstein’s spectacular insights into space, time, and energy. In just ...
Physicist Brian Greene takes you on a visual, conceptual, and mathematical exploration of Einstein’s spectacular insights into space, time, and energy. In just 11.5 hours, using nothing more advanced than high school algebra, journey from Einstein’s earliest musings on the speed of light to his startling realization that time can tick at different rates to his revolutionary discovery of the world’s most famous formula, E = mc2.
This is a more in-depth and mathematical version of the WSU Master Class “Space, Time, and Einstein.” https://youtu.be/CKJuC5CUMgU
#WorldSciU
Watch the class in full or view in segments via the chapter links below.
Experience the associated free online course at World Science U: https://worldscienceu.com/courses/special-relativity-world-science-u/
0:00 - Introduction
01:43 - Scale
05:46 - Speed
18:19 - The Speed of Light
27:39 - Units
33:28 - The Mathematics of Speed
44:24 - Relativity of Simultaneity
54:25 - Pitfalls: Relativity of Simultaneity
1:03:32 - Calculating the Time Difference
1:18:42 - Time in Motion
1:28:48 - How Fast Does Time Slow?
1:46:32 - The Mathematics of Slow Time
1:57:11 - Time Dilation Examples
2:10:51 - Time Dilation: Experimental Evidence
2:19:58 - The Reality of Past, Present, and Future
2:34:01 - Time Dilation: Intuitive Explanation
2:37:57 - Motion's Effect On Space
2:55:11 - Motion's Effect On Space: Mathematical Form
3:00:47 - Length Contraction: Travel of Proxima Centauri
3:07:46 - Length Contraction: Disintegrating Muons
3:12:00 - Length Contraction: Distant Spaceflight
3:18:54 - Length Contraction: Horizontal Light Clock In Motion
3:27:17 - Coordinates For Space
3:36:37 - Coordinates For Space: Rotation of Coordinate Frames
3:48:36 - Coordinates For Space: Translation of Coordinate Frames
3:53:10 - Coordinates for Time
4:07:12 - Coordinates in Motion
4:26:08 - Clocks in Motion: Examples
4:35:02 - Clocks in Motion: Length Expansion From Asynchronous Clocks
4:38:42 - Clocks in Motion: Bicycle Wheels
4:45:01 - Clocks in Motion: Temporal Order
4:54:35 - Clocks in Motion: How Observers Say the Other's Clock Runs Slow?
5:08:50 - The Lorentz Transformation
5:16:52 - The Lorentz Transformation: Relating Time Coordinates
5:26:10 - The Lorentz Transformation: Generalizations
5:33:18 - The Lorentz Transformation: The Big Picture Summary
5:47:37 - Lorentz Transformation: Moving Light Clock
5:54:39 - Lorentz Transformation: Future Baseball
6:02:35 - Lorentz Transformation: Speed of Light in a Moving Frame
6:08:43 - Lorentz Transformation: Sprinter
6:10:44 - Combining Velocities
6:17:46 - Combining Velocities: 3-Dimensions
6:27:45 - Combining Velocities: Example in 1D
6:30:23 - Combining Velocities: Example in 3D
6:36:34 - Spacetime Diagrams
6:50:35 - Spacetime Diagrams: Two Observers in Relative Motion
7:01:16 - Spacetime Diagrams: Essential Features
7:11:42 - Spacetime Diagrams: Demonstrations
7:15:23 - Lorentz Transformation: As An Exotic Rotation
7:27:26 - Reality of Past, Present, and Future: Mathematical Details
7:39:00 - Invariants
7:43:55 - Invariants: Spacetime Distance
7:54:25 - Invariants: Examples
7:59:19 - Cause and Effect: A Spacetime Invariant
8:12:40 - Cause and Effect: Same Place, Same Time
8:22:37 - Intuition and Time Dilation: Mathematical Approach
8:29:46 - The Pole in the Barn Paradox
8:43:51 - The Pole in the Barn: Quantitative Details
9:04:43 - The Pole in the Barn: Spacetime Diagrams
9:08:25 - Pole in the Barn: Lock the Doors
9:20:50 - The Twin Paradox
9:29:28 - The Twin Paradox: Without Acceleration
9:46:34 - The Twin Paradox: Spacetime Diagrams
9:53:12 - Twin Paradox: The Twins Communicate
10:06:34 - The Relativistic Doppler Effect
10:19:00 - Twin Paradox: The Twins Communicate Quantitative
10:30:17 - Implications of Mass
10:40:06 - Force and Energy
11:00:12 - Force and Energy: Relativistic Work and Kinetic Energy
11:07:24 - E=MC2
11:26:28 - Course Recap
Official Site: https://www.worldscienceu.com
Twitter: https://twitter.com/WorldScienceU
Facebook: https://www.facebook.com/worldscienceu
Instagram: https://www.instagram.com/worldscienceu/
https://wn.com/Wsu_Special_Relativity_With_Brian_Greene
Physicist Brian Greene takes you on a visual, conceptual, and mathematical exploration of Einstein’s spectacular insights into space, time, and energy. In just 11.5 hours, using nothing more advanced than high school algebra, journey from Einstein’s earliest musings on the speed of light to his startling realization that time can tick at different rates to his revolutionary discovery of the world’s most famous formula, E = mc2.
This is a more in-depth and mathematical version of the WSU Master Class “Space, Time, and Einstein.” https://youtu.be/CKJuC5CUMgU
#WorldSciU
Watch the class in full or view in segments via the chapter links below.
Experience the associated free online course at World Science U: https://worldscienceu.com/courses/special-relativity-world-science-u/
0:00 - Introduction
01:43 - Scale
05:46 - Speed
18:19 - The Speed of Light
27:39 - Units
33:28 - The Mathematics of Speed
44:24 - Relativity of Simultaneity
54:25 - Pitfalls: Relativity of Simultaneity
1:03:32 - Calculating the Time Difference
1:18:42 - Time in Motion
1:28:48 - How Fast Does Time Slow?
1:46:32 - The Mathematics of Slow Time
1:57:11 - Time Dilation Examples
2:10:51 - Time Dilation: Experimental Evidence
2:19:58 - The Reality of Past, Present, and Future
2:34:01 - Time Dilation: Intuitive Explanation
2:37:57 - Motion's Effect On Space
2:55:11 - Motion's Effect On Space: Mathematical Form
3:00:47 - Length Contraction: Travel of Proxima Centauri
3:07:46 - Length Contraction: Disintegrating Muons
3:12:00 - Length Contraction: Distant Spaceflight
3:18:54 - Length Contraction: Horizontal Light Clock In Motion
3:27:17 - Coordinates For Space
3:36:37 - Coordinates For Space: Rotation of Coordinate Frames
3:48:36 - Coordinates For Space: Translation of Coordinate Frames
3:53:10 - Coordinates for Time
4:07:12 - Coordinates in Motion
4:26:08 - Clocks in Motion: Examples
4:35:02 - Clocks in Motion: Length Expansion From Asynchronous Clocks
4:38:42 - Clocks in Motion: Bicycle Wheels
4:45:01 - Clocks in Motion: Temporal Order
4:54:35 - Clocks in Motion: How Observers Say the Other's Clock Runs Slow?
5:08:50 - The Lorentz Transformation
5:16:52 - The Lorentz Transformation: Relating Time Coordinates
5:26:10 - The Lorentz Transformation: Generalizations
5:33:18 - The Lorentz Transformation: The Big Picture Summary
5:47:37 - Lorentz Transformation: Moving Light Clock
5:54:39 - Lorentz Transformation: Future Baseball
6:02:35 - Lorentz Transformation: Speed of Light in a Moving Frame
6:08:43 - Lorentz Transformation: Sprinter
6:10:44 - Combining Velocities
6:17:46 - Combining Velocities: 3-Dimensions
6:27:45 - Combining Velocities: Example in 1D
6:30:23 - Combining Velocities: Example in 3D
6:36:34 - Spacetime Diagrams
6:50:35 - Spacetime Diagrams: Two Observers in Relative Motion
7:01:16 - Spacetime Diagrams: Essential Features
7:11:42 - Spacetime Diagrams: Demonstrations
7:15:23 - Lorentz Transformation: As An Exotic Rotation
7:27:26 - Reality of Past, Present, and Future: Mathematical Details
7:39:00 - Invariants
7:43:55 - Invariants: Spacetime Distance
7:54:25 - Invariants: Examples
7:59:19 - Cause and Effect: A Spacetime Invariant
8:12:40 - Cause and Effect: Same Place, Same Time
8:22:37 - Intuition and Time Dilation: Mathematical Approach
8:29:46 - The Pole in the Barn Paradox
8:43:51 - The Pole in the Barn: Quantitative Details
9:04:43 - The Pole in the Barn: Spacetime Diagrams
9:08:25 - Pole in the Barn: Lock the Doors
9:20:50 - The Twin Paradox
9:29:28 - The Twin Paradox: Without Acceleration
9:46:34 - The Twin Paradox: Spacetime Diagrams
9:53:12 - Twin Paradox: The Twins Communicate
10:06:34 - The Relativistic Doppler Effect
10:19:00 - Twin Paradox: The Twins Communicate Quantitative
10:30:17 - Implications of Mass
10:40:06 - Force and Energy
11:00:12 - Force and Energy: Relativistic Work and Kinetic Energy
11:07:24 - E=MC2
11:26:28 - Course Recap
Official Site: https://www.worldscienceu.com
Twitter: https://twitter.com/WorldScienceU
Facebook: https://www.facebook.com/worldscienceu
Instagram: https://www.instagram.com/worldscienceu/
- published: 01 Sep 2020
- views: 1128584
12:19
Special Relativity simplified using no math. Einstein thought experiments
Einstein's Special Relativity Explained Simply - no math
This entire revolution in physics started with a simple thought experiments, in the prolific imaginati...
Einstein's Special Relativity Explained Simply - no math
This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even graduated from high school. Einstein’s theory of special relativity is convention today. But to understand how revolutionary it was for its time, it is helpful to look at what the conventional understanding of physics was during the time of Einstein’s teenage years.
In 1801, Thomas Young had conducted a simple double slit experiment that showed that light behaved like a wave. So the theory about light at the time was that it was a wave. The problem is that a wave, it was thought, had to move through some sort of medium. They called this substance the luminiferous aether.
But in 1887, two scientists by the name of Albert Michelson and Edward Morely came up with an idea to test the existence of the aether. The background ether was believed to be unmoving and static, so if the wave was traveling in the same direction as the earth, the speed of the wave should be higher in the direction of the speed of the earth. Michelson and Morley showed that there was no difference in the speed of light of the two measurements. This seriously jeopardized the aether theory.
Einstein knew this, so he came up with a thought experiment as a 16 year old. His thought was to imagine that he was chasing a beam of light while traveling at the speed of light himself. What would he see? If young Albert could catch up to the beam, he should see a stationary wave.
Yet that was impossible. Einstein knew such stationary fields would violate the equations of electromagnetism developed by James Clerk Maxwell 20 years earlier.
So he came up with two postulates, and tried to figure out what the physics would be if the two postulates were true.
Postulate 1 was that the laws of physics are the same for all inertial reference frames.
Postulate 2 was that the speed of light in a vacuum is constant for all inertial reference frames.
The first postulate had been assumed for hundreds of years. The second postulate, however, was the revolution.
This meant that young Einstein would never see the stationary, oscillating fields, because he could never catch the light beam.
But this solution seemed to have fatal flaw. Einstein later explained the problem with another thought experiment:
Imagine firing a light beam along a railroad embankment just as a train roars by in the same direction at, say, 2,000 miles a second. Someone standing on the embankment would measure the light beam’s speed to be the standard number, 186,000 miles a second. But someone on the train would see it moving past at only 184,000 miles a second.
If the speed of light was not constant, Maxwell’s equations would somehow have to look different inside the railcar, and the first postulate would be violated. The solution to his thought experiment was that observers in relative motion experience time differently. This completely overturned hundreds of years of classical physics in which time was absolute in the universe. Einstein showed that time is relative, and varies in different frames of reference. The idea of the aether was no longer needed.
This one realization that reality is not the same for different frames of reference also led to other implications of special relativity:
That Fast moving object appear shorter
That Fast moving objects appears to have increased mass
And finally, the most famous equation in science E=MC2
That mass and energy are equivalent.
So, how did Einstein come up with his most famous equation based on his original two postulates? Let’s look at this conceptually.
If conservation of mass is interpreted as conservation of rest mass, this did not hold true in special relativity. Since different observers would disagree about what the energy of a system was, the mass and energy taken together must be conserved, not just the mass on its own.
It turns out that for the laws of physics, namely conservation of energy and momentum, to be consistent in the two "reference frames" of two observers moving with respect to each other, there has to be an energy associated with a body at rest, not just a body in motion. And that is what E=MC2 implies – the M in the equation is the mass at rest.
Some people point out that much of the actual work for special relativity had already been done by the time Einstein presented it. The concepts of time dilation for moving objects, were already in place and the mathematics had already been developed by Lorentz & Poincare. Einstein still deserves the accolades because he rejected the idea of the ether all together which other scientists had not done, and the idea of mass and energy equivalence via E=MC2 is solely Einstein. Scientists who had done prior work like Thomson, Larmor, Lorentz, or Poincare had never implied such a bold proposition.
#specialrelativity
#einstein
#michelsonmorley
https://wn.com/Special_Relativity_Simplified_Using_No_Math._Einstein_Thought_Experiments
Einstein's Special Relativity Explained Simply - no math
This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even graduated from high school. Einstein’s theory of special relativity is convention today. But to understand how revolutionary it was for its time, it is helpful to look at what the conventional understanding of physics was during the time of Einstein’s teenage years.
In 1801, Thomas Young had conducted a simple double slit experiment that showed that light behaved like a wave. So the theory about light at the time was that it was a wave. The problem is that a wave, it was thought, had to move through some sort of medium. They called this substance the luminiferous aether.
But in 1887, two scientists by the name of Albert Michelson and Edward Morely came up with an idea to test the existence of the aether. The background ether was believed to be unmoving and static, so if the wave was traveling in the same direction as the earth, the speed of the wave should be higher in the direction of the speed of the earth. Michelson and Morley showed that there was no difference in the speed of light of the two measurements. This seriously jeopardized the aether theory.
Einstein knew this, so he came up with a thought experiment as a 16 year old. His thought was to imagine that he was chasing a beam of light while traveling at the speed of light himself. What would he see? If young Albert could catch up to the beam, he should see a stationary wave.
Yet that was impossible. Einstein knew such stationary fields would violate the equations of electromagnetism developed by James Clerk Maxwell 20 years earlier.
So he came up with two postulates, and tried to figure out what the physics would be if the two postulates were true.
Postulate 1 was that the laws of physics are the same for all inertial reference frames.
Postulate 2 was that the speed of light in a vacuum is constant for all inertial reference frames.
The first postulate had been assumed for hundreds of years. The second postulate, however, was the revolution.
This meant that young Einstein would never see the stationary, oscillating fields, because he could never catch the light beam.
But this solution seemed to have fatal flaw. Einstein later explained the problem with another thought experiment:
Imagine firing a light beam along a railroad embankment just as a train roars by in the same direction at, say, 2,000 miles a second. Someone standing on the embankment would measure the light beam’s speed to be the standard number, 186,000 miles a second. But someone on the train would see it moving past at only 184,000 miles a second.
If the speed of light was not constant, Maxwell’s equations would somehow have to look different inside the railcar, and the first postulate would be violated. The solution to his thought experiment was that observers in relative motion experience time differently. This completely overturned hundreds of years of classical physics in which time was absolute in the universe. Einstein showed that time is relative, and varies in different frames of reference. The idea of the aether was no longer needed.
This one realization that reality is not the same for different frames of reference also led to other implications of special relativity:
That Fast moving object appear shorter
That Fast moving objects appears to have increased mass
And finally, the most famous equation in science E=MC2
That mass and energy are equivalent.
So, how did Einstein come up with his most famous equation based on his original two postulates? Let’s look at this conceptually.
If conservation of mass is interpreted as conservation of rest mass, this did not hold true in special relativity. Since different observers would disagree about what the energy of a system was, the mass and energy taken together must be conserved, not just the mass on its own.
It turns out that for the laws of physics, namely conservation of energy and momentum, to be consistent in the two "reference frames" of two observers moving with respect to each other, there has to be an energy associated with a body at rest, not just a body in motion. And that is what E=MC2 implies – the M in the equation is the mass at rest.
Some people point out that much of the actual work for special relativity had already been done by the time Einstein presented it. The concepts of time dilation for moving objects, were already in place and the mathematics had already been developed by Lorentz & Poincare. Einstein still deserves the accolades because he rejected the idea of the ether all together which other scientists had not done, and the idea of mass and energy equivalence via E=MC2 is solely Einstein. Scientists who had done prior work like Thomson, Larmor, Lorentz, or Poincare had never implied such a bold proposition.
#specialrelativity
#einstein
#michelsonmorley
- published: 23 Aug 2019
- views: 666764
5:56
Simple Relativity - Understanding Einstein's Special Theory of Relativity
Simple Relativity is a 2D short educational animation film. The film is an attempt to explain
Albert Einstein’s Special Theory of Relativity with a simpler visu...
Simple Relativity is a 2D short educational animation film. The film is an attempt to explain
Albert Einstein’s Special Theory of Relativity with a simpler visual representation and exciting animation. In a time when our day-to-day life is surrounded by technology, most people find it daunting to understand the science and its application. Simple Relativity is an attempt to excite the viewer about this complex phenomenon of Relativity so that they can approach this, and science in general, with a lot more curiosity rather than inhibition.
https://wn.com/Simple_Relativity_Understanding_Einstein's_Special_Theory_Of_Relativity
Simple Relativity is a 2D short educational animation film. The film is an attempt to explain
Albert Einstein’s Special Theory of Relativity with a simpler visual representation and exciting animation. In a time when our day-to-day life is surrounded by technology, most people find it daunting to understand the science and its application. Simple Relativity is an attempt to excite the viewer about this complex phenomenon of Relativity so that they can approach this, and science in general, with a lot more curiosity rather than inhibition.
- published: 01 Sep 2014
- views: 5039448