Einstein Relatively Easy

       We just have started a new category devoted to Quantum Mechanics, as Einstein was considered to have played a fundamental pioneer role in the birth of quantum physics and was himself recognizing the quantum theory’s significant achievements.

More precisely, we have decided to start this new series of articles by the presentation of the famous EPR Paradox and will dive further into the explanation of the so puzzling concept of entaglement.

Some basic concepts of quantum mechanics are assumed to be known, but don't worry we progress gently without too much high mathematical abstraction.

Enjoy your reading !


For 2017 new year's resolution, we have decided to undertake the french translation of the integrality of the website.

From now on, each new article will be proposed in both languages whereas each already existing article will be translated to french over time.

If you are interested to contribute to this task, feel free to contact me at the email adress specified in the About us section.

Happy new year!


I have recently replied to a comment posted by Ingeniero concerning the relation between contravariant/covariant vector components and basis vectors transformation matrix.

Hope it makes things clearer.

See the comment




Almost  one year after having been lauched, the stats show an increasing interest for einsteinrelativelyeasy.com.

We are now approaching 900 unique visitors per month, with almost 1500 visits.

Our most frequent visitors are from Great Britain, India, Spain and United States.

I am hoping such a growing trend for the next following months also!

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"The essence of my theory is precisely that no independent properties are attributed to space on its own. It can be put jokingly this way. If I allow all things to vanish from the world, then following Newton, the Galilean inertial space remains; following my interpretation, however, nothing remains.."
Letter from A.Einstein to Karl Schwarzschild - Berlin, 9 January 1916

"Quantum mechanics is certainly imposing. But an inner voice tells me that it is not yet the real thing. The theory says a lot, but does not really bring us any closer to the secret of the 'old one'. I, at any rate, am convinced that He is not playing at dice."
Einstein to Max Born, letter 52, 4th december 1926

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