A 'soap bubble' is a thin soap film of soap water that forms a hollow spherical shape with an iridescence surface.

The name "trdelnik" comes from trdlo, the wooden stake the cake is wrapped around for cooking which gives it its traditional hollow shape.

The hollow cylindrical shape made it subcritical.

Replies: Perhaps by "changed the volume" in the context of modeling a car the textbook meant that you may have made a hollow shape.

A mold is a hollow shape which exactly encloses the shape of a desired object.

Crispy Puff Shapes, as the name suggests, are hollow, puffy shapes with a crisp texture.

Among the customs attached to the last sheaf of the harvest were hollow shapes fashioned from the last sheaf of wheat or other cereal crops.

This relatively simple sequence of motions is capable of forming preforms of essentially any shape, including circular and hollow shapes.

This model is of special significance because it uses the natural round and hollow shape of the bamboo.

My only concern is his use of concave surfaces: they're hollow shapes and lack that tightly muscled look I feel helps design.