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They are finally shot like projectiles against a target of another substance, such as sodium, and smash a number of the sodium atoms. This changes the nature of these atoms and makes the sodium radioactive...

Author: NO WRITER ATTRIBUTED | Title: The Scientific Scrapbook | 5/9/1940 | See Source »

...Sodium hexametaphosphate, 16 lbs. of which in 1,000,000 gals, of water will prevent scale formation in pipes...

Author: /time Magazine | Title: Science: Marvels | 12/18/1939 | See Source »

...paper explained that blue crab canning has heretofore been impracticable because the crabs have unstable protein molecules, which, in the heat required for canning, release copper, cause blue copper oxide to form. By dipping the meat in a solution of sodium chloride, lactic acid and aluminum salts, the new process seals the copper into the crab proteins...

Author: /time Magazine | Title: FISHERIES: Blue Crabs | 9/25/1939 | See Source »

...stationed in modern chemical laboratories. Nevertheless, Dr. Harold Clayton Urey and his coworkers* at Columbia University have kept canaries within sniffing distance of their apparatus for months. Reason: the chemists were working with two deadly poisons, hydrogen cyanide (used in some U. S. States to execute condemned criminals) and sodium cyanide. If these began to leak from the apparatus, the sensitive little birds would collapse in time for the men to take action. Pacific, round-faced, gum-chewing Dr. Urey and his associates were not interested in poison, they were simply using the dangerous gases to make a harmless...

Author: /time Magazine | Title: Science: Canaries & Ferryboats | 9/25/1939 | See Source »

...heavy carbon apparatus is a tall glass cylinder with glass spirals inside. Heavy carbon can be separated from light carbon because it dissolves in hydrogen cyanide and sodium cyanide at slightly different rates. When sodium cyanide in water solution runs down the spiral and hydrogen cyanide as a gas flows upward, heavy carbon collects at the top of the apparatus. There were no leaks and the canaries warbled serenely...

Author: /time Magazine | Title: Science: Canaries & Ferryboats | 9/25/1939 | See Source »

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