Word: dimethyl
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Dates: during 1950-1959
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Researcher Akerfeldt is clearly over that hurdle: in a jampacked meeting last week U.S. researchers said that they had duplicated his method with minor variations, adding a chemical called DPP (for N,N-dimethyl-p-phenylene diamine) to serum specimens and getting the red reaction from patients with serious mental illnesses and some other diseases. (One notable exception: patients who have had schizophrenia a long time.) Most promising positive use: the reaction seems to be clearest in children, whose emotional disorders are especially hard to diagnose-and who are not likely to have such misleading conditions as malaria or pregnancy...
...stage rocket 72 ft. long and 45 in. in maximum diameter. It will have no fins, but will depend for steering on its movable rocket motor and an array of small gas-jets. The tanks holding the propellants (liquid oxygen and gasoline for the first stage, nitric acid and dimethyl-hydrazine for the second) will be thin-walled to save weight, and will have little strength when empty. When they are full and highly pressurized with helium, they will become as rigid as auto tires and strong enough to serve as the structure of the rocket, which will have...
...Dimethyl sulfide. once an evil-smelling waste left behind in kraft-papermaking, is being used to give an odor to natural gas, which otherwise could seep through a house without being detected. Scientists think they may also be able to use the chemical as a starting material for making a permanent antifreeze...