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...proton, which is 1,845 times as heavy as an electron, might make an electron its satellite. Such a simple system of one electron revolving around one proton makes up a common atom of hydrogen, simplest of the 92 elements. (Helium, next simplest, has an alpha particle for its core, two electrons for satellites. Other atoms have more protons, more electrons...
...Prince of Monaco. Mr. Clark is director of the A. A. A. S.'s press service. He must make certain that facts are fit to print. Few men with technical education can express themselves lucidly. From Mr. Clark they learned that "manuscripts and abstracts should be written in the simplest possible language, and in such a way as to be under stood by any educated person who lacks detailed knowledge of the subject treated. Especially should the broader aspects of the subject be presented, and its possible bearing on work in other lines and on thought in general." For fear...
...Most elements have two or more isotopes. Tin has eleven. Several scientists have predicted that hydrogen, too, simplest of the elements, would be found to have two isotopes. Professor Harold Clayton Urey of Columbia University said last May that he was searching for a hydrogen isotope of weight two. Last week he found it. Co-discoverers were Dr George M. Murphy of Columbia and Dr. Ferdinand G. Brickwedde of the U. S. Bureau of Standards in Washington. Under low pressure Dr. Brickwedde liquefied hydrogen by reducing the temperature. Then he allowed the temperature to rise.' At 437º below zero...
...nucleus, it is twice as heavy as the previously known hydrogen, whose nucleus has one proton. The discoverers thought H² would be of no commercial use. It would give water different spectral color, new physical properties, but would not affect the taste. But since its nucleus is the simplest yet found consisting of more than one particle it would be a great aid in the study of nuclei, might add to data on the cosmic ray which Dr. Robert Andrews Millikan thinks is the energy re-leased by the building up of elements in the universe...
Called "Elementary Biology," it is given to segregated groups of boys and girls, 11 & 13 years old, during an 18 to 36-week period. So that the segregation may not engender suspicion, the class alternates with physical education classes, where segregation occurs normally. Beginning with the simplest of biological forms, the course first takes up asexual (sperm-less, eggless) forms. Then come plants & animals which contain both male & female apparatus; then males & females which reproduce by fertilization, internal or external. Lastly come the anatomical, social and ethical features of Man's sexual organization...