New research suggests that the making of string figures, a globally documented practice, may point to shared cultural heritage stretching back millennia. The research offers a new way to investigate ...
String figures, by W. W. R. Ball.--Methods and theories for the solution of problems of geometrical construction, by J. Petersen.--Non-Euclidean plane geometry and trigonometry, by H. S. Caŕslaw.--A ...
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