Fire extinguisher in the early 60s and Purple-K being developed by the US Navy in the late 1960s. Manually applied dry agents such as graphite for class D (metal) fires had existed since WWII, but it wasn't until 1949 that Ansul introduced a pressurized extinguisher using an external CO2 cartridge to discharge the agent. Met-L-X (sodium chloride) was the first extinguisher developed in the US, with graphite, copper, and several other types being developed later. In the 1970s, Halon 1211 came over to the United States from Europe where it had been used since the late 40s or early 50s. Halon 1301
Green Fire (novel) then are obliterated. MacRobert, who has previously refused offers from either corporation, is placed in charge of Independent. He disposes of Jevic in time to end the destruction. Basil Davenport, reviewing the novel for "The New York Times", faulted the story's "psychological crudities," but noted that "Green Fire" was also marked by "some striking concepts, and a duel of powers with real suspense." Everett F. Bleiler faulted the novel for defects including "poor exposition," noted that Jevic was modeled on Nikola Tesla, and found the fictionalized account of his early life "fascinating." Green Fire (novel) Green Fire is a science