cubic
Cubit is the Primitive unit of length equivalent to a span of the forearm.
They are approximately the same, depending on how long your forearm is. A cubit is the length of your forearm from your elbow to your fingertip, about 18 inches or 44 cm. A span is the length from your thumb to your little finger with your fingers spread out as far as possible, about 9 inches or 22 cm.
The span is the distance between supports. The sum of the span lengths is the bridge length.
A barrel vault can span the length of a tunnel.
A bridge's span is the length that crosses the gap.
ly is the longest span of slab while lx is shortest span of slab
hand span, arm span, foot, cubit
span
10ft-0ft
length, time, period, term, stretch, extent, spell, span
Its total length is 244 metres and its longest span is 61 metres.
Its total length is 244 metres and its longest span is 61 metres.