minds of the two powers of the usa and the ussr to go in parallel with the soviet term alexander liputsky in 1949 on the table of igor kurchatov. there was a four-page note from a tear-off notebook with a beaded handwriting of a young physicist, what did it contain and why was it sent, there was an understanding that nuclear reactions are possible, when we have a split nucleus of uranium 235 or plutonium e, is formed a sufficient number of neutrons that interact with the next nuclei of uranus 23. will lead to the formation of an additional amount of 239 plutonium in an amount greater than the amount of fission, if you do not use water, as in thermal reactors, and another coolant that does not slow down and badly absorbs high-energy neutrons, then the usual natural uranium in the core of a nuclear reactor will turn into plutonium 239, which in turn can be used as an efficient nuclear fuel or globa the basis for the operation of bn installations as breeders. quickly and not thrones tried to tame many experimental installations built by the usa france great britain japan but design errors pr