Relativity

This course's main goal is to describe the theories of relativity to develop the relation between space and time. The course describes the two postulates of relativity and the type of frames to which they apply. The course progresses by the introduction of Lorentz transformation that is the core of special relativity. The application of Lorentz invariance includes simultaneity, time dilation, length contraction, doppler effect and the transformation of velocities. It further develops the quantitative relation between mass, speed, energy,and momentum. The course concludes by describing the impact of special relativity.

7 topics

136 lectures

Educators

RC

Course Curriculum

19 videos

Reflection and Refraction of Light

22 videos

21 videos

Quantum Physics

24 videos

15 videos

Nuclear Physics

15 videos

Condensed Matter Physics

20 videos

Relativity Lectures

Relativity

Relativity - Intro

In physics, the theory of relativity (or simply relativity) encompasses two theories by Albert Einstein: special relativity and general relativity.

Robert Call

RC

Relativity

Foundational Ideas - Overview

In philosophy, foundationalism is the view that certain basic beliefs are justified without reference to other beliefs. Such beliefs are said to be justified "foundationally". The general strategy of foundationalism is to break a chain of reasoning at its weakest link—to show that one need not accept any of the beliefs which are reached by a chain of reasoning, if one does not accept its starting point.

Robert Call

RC

Relativity

Foundational Ideas - Example 1

In philosophy, foundationalism is the view that certain basic beliefs are justified without reference to other beliefs. Such beliefs are said to be justified "foundationally". The general strategy of foundationalism is to break a chain of reasoning at its weakest link—to show that one need not accept any of the beliefs which are reached by a chain of reasoning, if one does not accept its starting point.

Robert Call

RC

Relativity

Foundational Ideas - Example 2

In philosophy, foundationalism is the view that certain basic beliefs are justified without reference to other beliefs. Such beliefs are said to be justified "foundationally". The general strategy of foundationalism is to break a chain of reasoning at its weakest link—to show that one need not accept any of the beliefs which are reached by a chain of reasoning, if one does not accept its starting point.

Robert Call

RC

Relativity

Foundational Ideas - Example 3

In philosophy, foundationalism is the view that certain basic beliefs are justified without reference to other beliefs. Such beliefs are said to be justified "foundationally". The general strategy of foundationalism is to break a chain of reasoning at its weakest link—to show that one need not accept any of the beliefs which are reached by a chain of reasoning, if one does not accept its starting point.

Robert Call

RC

Relativity

Foundational Ideas - Example 4

In philosophy, foundationalism is the view that certain basic beliefs are justified without reference to other beliefs. Such beliefs are said to be justified "foundationally". The general strategy of foundationalism is to break a chain of reasoning at its weakest link—to show that one need not accept any of the beliefs which are reached by a chain of reasoning, if one does not accept its starting point.

Robert Call

RC

Relativity

Time and Length - Overview

Time and length are related through the speed of light. The speed of light is the most important factor in determining the relationship between time and length. The speed of light is 299,792,458 metres per second in a vacuum. Therefore, time and length are inversely proportional to each other.

Robert Call

RC

Relativity

Time and Length - Example 1

Time and length are related through the speed of light. The speed of light is the most important factor in determining the relationship between time and length. The speed of light is 299,792,458 metres per second in a vacuum. Therefore, time and length are inversely proportional to each other.

Robert Call

RC

Relativity

Time and Length - Example 2

Time and length are related through the speed of light. The speed of light is the most important factor in determining the relationship between time and length. The speed of light is 299,792,458 metres per second in a vacuum. Therefore, time and length are inversely proportional to each other.

Robert Call

RC

Relativity

Time and Length - Example 3

Time and length are related through the speed of light. The speed of light is the most important factor in determining the relationship between time and length. The speed of light is 299,792,458 metres per second in a vacuum. Therefore, time and length are inversely proportional to each other.

Robert Call

RC

Relativity

Time and Length - Example 4

Time and length are related through the speed of light. The speed of light is the most important factor in determining the relationship between time and length. The speed of light is 299,792,458 metres per second in a vacuum. Therefore, time and length are inversely proportional to each other.

Robert Call

RC

Relativity

Lorentz Transformations - Overview

In physics, the Lorentz transformation is the transformation of space and time coordinates from one reference frame to another reference frame that is moving relative to the first one. The transformation was discovered by Hendrik Lorentz (1899) and Henri Poincaré (1904) as a way to reconcile the Maxwell equations for electricity and magnetism with the laws of mechanics.

Robert Call

RC

Relativity

Lorentz Transformations - Example 1

In physics, the Lorentz transformation is the transformation of space and time coordinates from one reference frame to another reference frame that is moving relative to the first one. The transformation was discovered by Hendrik Lorentz (1899) and Henri Poincaré (1904) as a way to reconcile the Maxwell equations for electricity and magnetism with the laws of mechanics.

Robert Call

RC

Relativity

Lorentz Transformations - Example 2

In physics, the Lorentz transformation is the transformation of space and time coordinates from one reference frame to another reference frame that is moving relative to the first one. The transformation was discovered by Hendrik Lorentz (1899) and Henri Poincaré (1904) as a way to reconcile the Maxwell equations for electricity and magnetism with the laws of mechanics.

Robert Call

RC

Relativity

Lorentz Transformations - Example 3

In physics, the Lorentz transformation is the transformation of space and time coordinates from one reference frame to another reference frame that is moving relative to the first one. The transformation was discovered by Hendrik Lorentz (1899) and Henri Poincaré (1904) as a way to reconcile the Maxwell equations for electricity and magnetism with the laws of mechanics.

Robert Call

RC

Relativity

Lorentz Transformations - Example 4

In physics, the Lorentz transformation is the transformation of space and time coordinates from one reference frame to another reference frame that is moving relative to the first one. The transformation was discovered by Hendrik Lorentz (1899) and Henri Poincaré (1904) as a way to reconcile the Maxwell equations for electricity and magnetism with the laws of mechanics.

Robert Call

RC

Relativity

Energy and Doppler Effect - Overview

In physics, redshift happens when light seen coming from an object is proportionally increased in wavelength, or shifted to the red end of the spectrum. The phenomenon is commonly seen in the spectra of astronomical objects. It can be seen in the spectra of stars, quasars, and galaxies. The observed redshift is proportional to the object's distance from the observer, and was first noticed in the 18th century by astronomer William Herschel. The most commonly accepted explanation of the redshift is that it is a Doppler shift that is proportional to the object's relative velocity with respect to the observer.

Robert Call

RC

Relativity

Energy and Doppler Effect - Example 1

In physics, redshift happens when light seen coming from an object is proportionally increased in wavelength, or shifted to the red end of the spectrum. The phenomenon is commonly seen in the spectra of astronomical objects. It can be seen in the spectra of stars, quasars, and galaxies. The observed redshift is proportional to the object's distance from the observer, and was first noticed in the 18th century by astronomer William Herschel. The most commonly accepted explanation of the redshift is that it is a Doppler shift that is proportional to the object's relative velocity with respect to the observer.

Robert Call

RC

Relativity

Energy and Doppler Effect - Example 2

In physics, redshift happens when light seen coming from an object is proportionally increased in wavelength, or shifted to the red end of the spectrum. The phenomenon is commonly seen in the spectra of astronomical objects. It can be seen in the spectra of stars, quasars, and galaxies. The observed redshift is proportional to the object's distance from the observer, and was first noticed in the 18th century by astronomer William Herschel. The most commonly accepted explanation of the redshift is that it is a Doppler shift that is proportional to the object's relative velocity with respect to the observer.

Robert Call

RC

Relativity

Energy and Doppler Effect - Example 3

In physics, redshift happens when light seen coming from an object is proportionally increased in wavelength, or shifted to the red end of the spectrum. The phenomenon is commonly seen in the spectra of astronomical objects. It can be seen in the spectra of stars, quasars, and galaxies. The observed redshift is proportional to the object's distance from the observer, and was first noticed in the 18th century by astronomer William Herschel. The most commonly accepted explanation of the redshift is that it is a Doppler shift that is proportional to the object's relative velocity with respect to the observer.

Robert Call

RC

Relativity

Energy and Doppler Effect - Example 4

In physics, redshift happens when light seen coming from an object is proportionally increased in wavelength, or shifted to the red end of the spectrum. The phenomenon is commonly seen in the spectra of astronomical objects. It can be seen in the spectra of stars, quasars, and galaxies. The observed redshift is proportional to the object's distance from the observer, and was first noticed in the 18th century by astronomer William Herschel. The most commonly accepted explanation of the redshift is that it is a Doppler shift that is proportional to the object's relative velocity with respect to the observer.

Robert Call

RC