Former KGB officer Oleg Gordievsky has died aged 86 in England. He was a double agent who helped change the course of the ...
Oleg Gordievsky, a high-ranking KGB officer who spied for the West during the height of the Cold War, has died in England at ...
Oleg Gordievsky, a Soviet KGB officer who helped change the course of the Cold War by covertly passing secrets to Britain, ...
Negative feedback control brings about changes that help return the body to normal conditions. If the body temperature drops, negative feedback control raises the temperature back to normal. If ...