Early Precision Compound Machine from Ancient China

TitleEarly Precision Compound Machine from Ancient China, Science 304, 1638
Publication TypeJournal Article
Year of Publication2004
AuthorsLu, Peter J.

The intricate carved decorations on the best jades from ancient China are thought to have been made largely by hand and through the use of simple machines. Here I present evidence that the curved spiral grooves carved on a class of ornamental jade burial rings from the Spring and Autumn period (771 to 475 B.C.) appear to have a mechanical origin that involves a precision compound machine.

DOIDOI: 10.1126/science.1096588
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Peter J. Lu  |  Harvard University  |  Cambridge, MA 02138 USA |  plu_at_fas.harvard.edu