Although writers are fond of comparing the size of various objects to the pinhead, it is a very inexact quantity. Measurements of heads of pins (not including pins whose heads are glass or plastic beads) in a fabric shop shows that some are as small as 1 millimeter in diameter and others as large as 1.9 millimeters.

In Indian cooking, the amount that can be held on a pinhead is used as a unit of measure for very powerful ingredients, such as camphor.

Sorry. No information on contributors is available for this page.

home | units index | search |  contact drawing of envelope |  contributors | 
help | privacy | terms of use