Einstein's theories?

Question

what are some of his equations besides E=mc^2

Answer 1

Einstein got a Nobel prize (1905) for his research on the photoelectric effect. This showed that both light and matter consist of "packages" of fixed amounts of energy, thus confirming the late 19th century molecule model and Max Planck's theory of quantization of light energy (photons).

The discovery of the photon laid the foundation for quantum physics. In the years after, Einstein was involved in the development of quantum physics, although he had difficulty accepting the strangeness of this theory.

"E = mc2" is only the tip of the iceberg of the other great new theory of the 20th century, namely relativity. Einstein first developed "special relativity", in which he rethought the concepts of time and space measurement, and solved the problem of the constancy of the velocity of light. Then he continued with "general relativity", where he explained gravity by the curvature of time-space, a model that successfully explained some astronomical observations and that is still used in cosmology.

But you want equations? Problem is, equations without explanation are quite meaningless. But I will indulge you. Instead of E = mc^2, you can also work with

E^2 = m^2 c^4 + p^2 c^2

See also the equations in the second section of
http://en.wikipedia.org/wiki/Lorentz_transformation

"Lorentz transformations" constitute an important ingredient of special relativity.

Answer 2

I'll tell you about the theories, then you can go look up the big equations he came up with that are annoying to write in Yahoo. The ones everyone know are the special relativity ones, E=mc^2 and so on. The Lorentz transformations aren't too bad either. There are also the General Relativity equations and the best one: his Gravitational field equation.

Answer 3

Then there is "m = E/c2", which, as I remember, was realized before the concept of E = mc2.