Quoted in Concepts of Mass in Classical and Modern Physics by Max Jammer (1961), p. Ist die TrГ¤gheit eines KГ¶rpers von seinem Energieinhalt abhГ¤ngig? ('Does the inertia of a body depend upon its energy content?').The mass of a body is a measure of its energy content.This was demonstrated by Cockcroft and Walton in 1932, experimentally.' The mass and energy were in fact equivalent, according to the formula mentioned before. Furthermore, the equation EВ =В mcВІ, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa. In a later statement explaining the ideas expressed by this equation, Einstein summarized: 'It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing - a somewhat unfamiliar conception for the average mind.The equivalence of mass and energy was originally expressed by the equation mВ =В L/cВІ, which easily translates into the far more well-known EВ =В mcВІ in Does the Inertia of a Body Depend Upon Its Energy Content? published in the Annalen der Physik (27 September 1905)В : 'If a body gives off the energy L in the form of radiation, its mass diminishes by L/cВІ.'.

Opening of a letter to his friend Conrad Habicht in which he describes his four revolutionary Annus Mirabilis papers (18 or ) Doc.

What are you up to, you frozen whale, you smoked, dried, canned piece of soul.?

Dear Habicht, / Such a solemn air of silence has descended between us that I almost feel as if I am committing a sacrilege when I break it now with some inconsequential babble.

Was machen Sie denn, Sie eingefrorener Walfisch, Sie getrocknetes, eingebГјchstes StГјck Seele.?

Lieber Habicht! / Es herrscht ein weihevolles Stillschweigen zwischen uns, so daГџ es mir fast wie eine sГјndige Entweihung vorkommt, wenn ich es jetzt durch ein wenig bedeutsames Gepappel unterbreche.

Einstein had been annoyed that Paul Drude, editor of Annalen der Physik, had dismissed some criticisms Einstein made of Drude's electron theory of metals.

Letter to Jost Winteler (July 8th, 1901), quoted in The Private Lives of Albert Einstein by Roger Highfield and Paul Carter (1993), p.

Blind obedience to authority is the greatest enemy of truth.

AutoritГ¤tsdusel ist der grГ¶Гџte Feind der Wahrheit.

The mass of a body is a measure of its energy content. Douglas Stone, Einstein and the Quantum (2013)

1.8.2 Albert Einstein: A guide for the perplexed (1979).

1.8.1 Albert Einstein: The Human Side (1979).

1.8 Attributed in posthumous publications.

1.7.4 RussellвЂ“Einstein Manifesto (1955).

1.7.1 On the Generalized Theory of Gravitation (1950).

1.6.5 'Einstein's Reply to Criticisms' (1949).

1.6.3 Religion and Science: Irreconcilable? (1948).1.6.2 Only Then Shall We Find Courage (1946).

Nice clock but blinded by the light 2