Convert span to megalithic yard
Selected category: length.
Definition and details for span:
Span is a traditional unit of length equal to 9 inches or 22.86 mm. A span was defined as the length of the span of a man's hand with fingers stretched out as far as possible. The name comes from the old English word "spann".
Definition and details for megalithic yard:
Megalithic yard is a unit of length used in the construction of megalithic monuments such as Stonehenge. In 1951 the Scottish engineer Alexander Thom (1894-1985) defined this unit equal to about 82.91 cm.