Einstein was a copy cat master (Plagiarizer)
Late 19th-century natural philosophers believed that electromagnetism was more fundamental than Isaac Newton’s laws of motion and that the electromagnetic field itself should provide the origin of mass.
i.e they knew moving electrons gained mass
When other scientist did their work they released the research with "references" and thank you notes to previous scientist however Einstein did not showed references to work already proven or close to proven by top scientist of the time
In 1881 J. J. Thomson, later a discoverer of the electron, made the first attempt to demonstrate how this might come about by explicitly calculating the magnetic field generated by a moving charged sphere and showing that the field in turn induced a mass into the sphere itself.
One of the more plausible precursors to
E = mc2 is attributed to
Fritz Hasenöhrl, a physics professor at the University of Vienna. In a 1904 paper Hasenöhrl clearly wrote down the equation
E = 3/8
mc2.
He calculated that the motion adds a mass of 3/8
c2 times the radiant energy
1889 English physicist Oliver Heaviside simplified his work to show that the effective mass should be
m = (4⁄3) E / c2
Poincaré concluded that the electromagnetic field energy of an electromagnetic wave behaves like a fictitious
fluid ("fluide fictif") with a mass density of
E/
c2
One naturally wonders whether Einstein knew of Hasenöhrl’s work. It is difficult to believe that he did not, given that the bulk of the prize-winning trilogy appeared in the most prominent journal of the day
Equally surprising is that although Einstein was the first to propose the correct relationship, E = mc2, he didn’t actually prove it, at least according to his own special relativity
(Note all other scientist proposed a equation and were trying to prove their equation Einstine just took the idea and it was self solvable he did not bother showing world the proof of his work)
Yet ... here we are celebrating him
Nor he invented the Nuclear bomb
The Manhattan Project began modestly in 1939, but grew to employ more than 130,000 people and cost nearly US$2 billion (about $26 billion in 2016 dollars). Over 90% of the cost was for building factories and producing the fissile materials, with less than 10% for development and production of the weapons. Research and production took place at more than 30 sites across the United States, the United Kingdom and Canada.