Instead, they said, tub manufacturers should take a new look at their safety standards and consider, among other changes, using surfaces that create more friction.

To accommodate this problem we have written into the code of practice that caterers can use experimental surfaces under certain conditions.

As a painter she rejected the primacy of canvas and used non conventional surfaces.

Some populations also use trees or other hard surfaces as anvils in order to crack mollusks.

During the early years of powered flight they had better roll control than airplanes that used movable surfaces.

Stealth technology also uses curved or angular surfaces to reduce radar reflection.

The burrowing is carried out using the mouthparts and special cutting surfaces on the front legs.

Perelman proved this can't happen by using minimal surfaces on the manifold.

"This piece is an example of the direction I am going, of using textured surfaces as the primary decorative element," she said.

Keep in mind that you can use any paper surface, as well as other surfaces like wood, cloth, ceramic, etc.