Understand what’s inside of E=mc2

Please note that this blog has been moved.

Now it has its own domain: mynixworld.info 🙂

If you want to read the latest version of this article (recommended) please click here and I open the page for you.

Even if physics was never the center of my interest, I was always eager to understand “why” and “how” the world works as we know it does.

Over time I understand more and more what is the value of a good teacher. I was in the school, of course, I got my education, but somehow it seems that the teachers that I had were never able to explain in easy words either “why” or “how”.

These days I got the answer that I was looking for, maybe only partially, and it turns out that Einstein‘s equation E=mc2 represents the answer for the “why”- question.

The people from the SBS have made a wonderful documentary called “Einstein’s big idea”. It takes you from the beginning, when Émilie du Châtelet has discovered that the Leibnitz calculations about the kinetic energy were correct and not the Newton ones, that is E=0.5*mv2, or later, when Lavoisier have been determined that nature is a closed system, when he have demonstrated with an experiment that in any transformation, no amount of matter(mass) is ever lost and non is gained. From general theory of relativity we know that mass(matter) and energy is equivalent. The movie goes even further, when Faraday define what we know as electromagnetic induction.

All these contributions to physics and chemistry had led Einstein in 1905 to that equation what we know today as E=mc2.

Einstein’s equation and the work of a team formed by the scientists Lisa Meitner and Otto Hahn have led later to what we know it as nuclear fission (a bright but bad idea!).

So here is the movie:

Thank you Einstein for unveiling the world so as we can see it as it really is.


About Eugen Mihailescu

Always looking to learn more about *nix world, about the fundamental concepts of arithmetic, algebra and geometry. I am also passionate about programming, database and systems administration.
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