Word: detectable
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Roger was turned upside down to drain the dirty river water out of him, and Dr. Kvittingen began artificial respiration with a tube down his windpipe, but the boy was still in desperate plight. He had no detectable pulse, and all the way to the hospital his chest was rhythmically compressed to force blood in and out of the heart. At Central Hospital a special, electrode needle was pushed right through the chest wall into the heart, and it failed to detect any beat. External pressure was continued. A blood transfusion was started. Not until 2½ hours after...
...first objection raised by scientists has little validity. Astronomers admit that they cannot detect the "needles" today. But they argue that the little dipoles will cause real interference if their observational equipment improves as much during the next decade as it has in the past one. However, the copper wires, forced down by pressure from solar radiation, should burn up harmlessly in the lower atmosphere in less than five years...
Under favorable conditions, the thermistor can detect a change in temperature on the moon of less than one degree Fahrenheit. The Infrared Laboratory has invented and built another detector, called a ferroelectric bolometer, which promises to be even more sensitive. It should be able, for example, to detect the heat given off by a human hand flashing across it from across the room...
...blood banks, like New York Hospital's, take every precaution in accepting donors. Trouble is, the hospitals often have to buy blood from commercial banks. Since the malaria parasites hide in blood cells at different times in their complex life cycle, and are then very difficult to detect, blood banks usually take their donors' word that they have never had malaria. In some cases, though, a donor's word is far from reliable...
President Ward claims to have heard that the college is changing, but to be unable to detect the change himself. To justify his faith in the school's future, Ward listed several outstanding new teachers. Atop the list was Francis Randall...