Once the boot forms dried, he added clay details to the shoes to represent leather shoe material.

VOA: special.2009.09.09

For example, one thing that could happen is that you build it up with wood and clay, you pick the wrong material for a bridge, and it will not stand up to the forces of nature.

例如,其中的一个问题是,选择了木头和粘土作为造桥的材料,你就选错了材料,这座桥难以与自然力相抗衡

耶鲁公开课 - 生物医学工程探索课程节选

The soil should be full of loam, a mixture of sand, silt,clay and organic material.

VOA: special.2009.04.07

Then,the artist puts small pieces of glass material inside of the clay form.

VOA: special.2009.09.16

Burning away the material added to the clay leaves tiny holes.

VOA: special.2009.06.22

To make one, clay is mixed with a material that burns.

VOA: special.2009.06.22