Einstein Relatively Easy

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It will be a place where i will give an update of any new article, any interesing reading  or more generally of any interesting news about Relativity.


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We are happy to announce the start of the article series dedicated to General Relativity.

You can already read the Introduction to General Relativity

From now on, we will be writing articles related to both Special and General Relativity theories in parallel.


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We have just added a new tab in Minkowski space time article Minkowski's Four-Dimensional Space-Time, which shows how to retrieve the Lorentz factor = time dilation factor from the spacetime interval invariance.

So far, we have then deduced the time dilation factor by 3 different ways:

- by simple geometry and the light clock example Constant Speed of light - Introduction to Time Dilation and Lorentz factor

- by the Minlowski space time interval invariance Minkowski's Four-Dimensional Space-Time

- and finally by using the Lorentz transformation equations The Lorentz transformations Part III - Measuring-Rods and Clocks in motion


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"Five or six weeks elapsed between the conception of the idea for the special theory of relativity and the completion of the relevant publication" Einstein to Carl Seeling on March 11, 1952

"Every boy in the streets of Göttingen understands more about four-dimensional geometry than Einstein. Yet, in spite of that, Einstein did the work and not the mathematicians."
David Hilbert

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