Early Precision Compound Machine from Ancient China
|Title||Early Precision Compound Machine from Ancient China, Science 304, 1638|
|Publication Type||Journal Article|
|Year of Publication||2004|
|Authors||Lu, 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.