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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

Relativity - Intro

Foundational Ideas - Overview

Foundational Ideas - Example 1

Foundational Ideas - Example 2

Foundational Ideas - Example 3

Foundational Ideas - Example 4

Time and Length - Overview

Time and Length - Example 1

Time and Length - Example 2

Time and Length - Example 3

Time and Length - Example 4

Lorentz Transformations - Overview

Lorentz Transformations - Example 1

Lorentz Transformations - Example 2

Lorentz Transformations - Example 3

Lorentz Transformations - Example 4

Energy and Doppler Effect - Overview

Energy and Doppler Effect - Example 1

Energy and Doppler Effect - Example 2

Energy and Doppler Effect - Example 3

Energy and Doppler Effect - Example 4