stairwell spiral – looking over centripetal banisters

banister = the structure formed by the uprights and handrail at the side of a staircase. Origin: 17th cent. alteration of baluster. from greek: balaustion = curving calyx tube of a wild pomegranate flower.
gradient = the vector formed by the nabla-operator on a scalar function at a given point in a scalar field. color gradient.
gradience between stairwell and staircase.

Leave a Reply

Your email address will not be published. Required fields are marked *