Abstract
Many social changes are occasioned by mechanical inventions and scientific discoveries. Although the reporting of discoveries is not well developed, and although it is difficult to forecast their significance, an attempt is made to select 100 inventions and discoveries, largely in applied science, for 1927, and mainly from the United States, which may be socially significant. The list is from the fields of medicine (with 13 listed), vitamins and ultra-violet light (7), medical instruments (4), biology (11), agriculture (9), chemistry (9), metals and mechanical devices (5), engineering (8), physics (4), electricity (3), radio (7), aviation (6), geology (3), safety devices (6), and from miscellaneous fields (7).
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