Word: detectable
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...looks for the significance of 1) cranial changes in human evolution. 2) cranial differences among men today. The significance is harder to detect than the differences. Eskimos have bigger heads than white men but are little if any brighter. The three largest skulls on record belong to an Aleutian Islander (capacity: 2,005 c.c.), an Algonquin "contemporary" of Pocahontas (2,200 c.c.), Russian Novelist Ivan Turgenev (2,030 c.c.). Recently Dr. Hrdlička examined the heads of 150 members of the National Academy of Sciences, which the Smithsonian calls "one of the most distinguished intellectual groups in the world...
...Among new developments to come: instruments to detect infra-red rays given off by airplane motors, thus help to locate enemy aircraft...
Because the jellylike body tissues tremble for a brief instant after every "blow" from the heart, after-vibrations warp part of the record. Hence Dr. Starr believes that his machine will never attain "highest precision." Nevertheless it is good enough to: 1) detect early, hitherto invisible cases of heart disease; 2) show the relation between high blood pressure and heart function; 3) differentiate between various types of heart disease...
...true, says Author Andrews, that bulls get mad when they see red-all mammals except monkeys and men are colorblind. Many animals can be taught to detect slight differences of shade, but when variously colored disks emitting the same intensity of light are presented, the animals are baffled. Thus a dog sees the world, including his master, in various shades of grey, as in a photograph. But birds, fish and insects can distinguish colors...
There is but one solution, one safe-guard against these dangers. Peepholes must be cut so that students may at any time detect foul play behind the fences. Student opinion has been marshaled into unanimity on this issue. The University must comply...