Atom Bomb

Nuclear fission discoverd

Dec 1, 1938

Otto Hahn, Fritz Strassmann, Lise Meither, Otto Frisch discoved nuclear fission in uranium

A-bomb history

Period: Dec 1, 1938 to Aug 6, 1945

The Letter

Aug 2, 1939

Albert Einstien wrote a letter to Franklin D. Roosevelt about the atom bomb

Abelson's thermal diffusion column

Feb 3, 1941

Abelson's thermal diffusion column is developed as a cheap way to make uranium hexaflouride

Abelson's report is released

Jan 3, 1943

Abelson's report is released it states that uranium can be enriched with in a single thermal diffusion column.

First drops of prototype

Aug 13, 1943

First drops of prototype atom bomb 14/23 scale model.

First shots

Sep 17, 1943

First shots fired from an uranium gun

The largeset atomic pile assembled.

Sep 26, 1943

The largeset atomic pile assembled. The first plutonium production reactor is operating.

The first A-bomb Detonation

Jul 16, 1945

Hiroshima dies

Aug 6, 1945

this is the day hiroshima was bombed

Naggasaki Dies

Aug 9, 1945

this was the day we dropped the 2nd A-bomb on a city called naggasaki