Word: human
(lookup in dictionary)
(lookup stats)
Dates: during 1950-1959
Sort By: most recent first
(reverse)
...submarine service is a most unusual [human] laboratory," concluded Captain Alvis, "a progressive series of valid limited objectives leading toward the ultimate goal of an honored retired citizen with a fairly adequate income for life." For mental health, few landlubbers can match such conditions: hard work among good men, well done and well appreciated...
...Washington's Walter Reed Army Hospital, by Captain Leroy H. Dart Jr. and Master Sergeant Thomas R. Turner, the new wrinkle rests on facts about the cell's nucleic acids that were unknown in 1943. Biochemists are now sure that deoxyribonucleic acid (DNA) generally increases in human cancer cells; they suspect that ribonucleic acid (RNA) also rises. If the nucleic acid can be spotted under a microscope, it should be a tipoff to cancer...
...study of the mating habits of sea horses or the inner structure of a grasshopper's brain. But today he can tip back his head and look at the sky. Beyond its outermost blue are the world-encompassing belts of fierce radiation that bear his name. No human name has ever been given to a more majestic feature of the planet Earth...
Behind the Northern Lights. When Van Allen made his first open report on Explorer IV, he had to avoid all mention of Argus because of military security. But he had plenty to tell about the natural radiation. He could say with assurance that a human satellite crew exposed to maximum Van Allen radiation for a few days would surely die. It looked as if the fierce particles, which slam close to the earth in the auroral regions, were the explanation of the ancient mystery of the northern lights...
...into space. "A man is a fabulous nuisance in space right now," he says. "He's not worth all the cost of putting him up there and keeping him comfortable and working." Instruments are lighter, tougher and less demanding, are sensitive to many things that human senses ignore. They already have memories (tape recorders), and they can carry computers that will permit them to make judgments. An instrument-manned Venus probe should be able to make observations and adjust its course by firing small rockets when it nears its goal. Perhaps it will round Venus and then put itself...