1

Derivation of Einstein’s 2 1905 paper

In his paper, Einstein derived DL ¼ Dmc2 (light energy–mass equation). 

2

Einstein’s Derivation of Rest Mass Energy

Einstein derived five equations relating to mass (rest mass,
mass exchanged) and energy. 

3

3. Universality of mass of nucleons and Binding Energy

 There are two inherent observations: firstly, masses of nucleons are
fundamental constants, i.e., they are the same universally (inside and outside
the nucleus in all cases); and secondly, nuclei possess Binding Energy (BE)
(∆mc2 ) owing to a mass defect. 

4

 Cockcroft experiments in 1932 did not confirm E=mc2

The original aim of Cockcroft and Walton’s experiment was to disintegrate Li7 with fast protons yielding alpha particles. 

5

Relativistic Mass of Neutrons in nuclear reaction

The relativistic variation of mass with speed is experimentally confirmed and widely
used in physics. In fission reactions, neutrons have energy 0.025 eV or velocity 2185 m/s, whereas
secondary neutrons have energy 2 MeV or 1.954 107 m/s: 7% speed of light.

New equation for exponential variation of Mass with velocity

The origin of various equations involving variation of mass with velocity is discussed and new
exponential equation is derived. At lower velocity this equation and Lorentz equation both give same results.

7

The origin of the generalized mass-energy equation and its applications in General Physics and Cosmology

The origin of the generalized mass-energy equation and its applications in General Physics and Cosmology