Any brand will do, as long as it has a timer and decent heat control for annealing glass, and can put out enough heat to handle the metal clay.
Any bowl that isn't metal, you could use clay or glass.
sculpture
Metal clay was created in 1990.
7/35 or 1/5
Styrofoam is indeed lightweight compared to other substances from which cups are made such as clay, metal or glass.
Fire the clay like glass, not clay. The problem with melting glass on clay is the coefficient is different. Glass will craze, (crackle) on the clay. If you want the glass to stay on the clay use high fire clay and fire it to bisque first. The second firing with the glass on it should be fired on a schedule that is suitable for the glass. You can not simply fire the glass up to it's melting temperature then allow it to cool without controlling the cooling rate. You may want the rate to be 60ºF/hour to cool depending on the type of glass you are using.
Glass is silica (sand) mixed with soda. The soda helps the silica to melt - it acts as a flux.Clay often contains silica, and sometimes quite a high proportion of a clay is silica minerals. It also ususally contains alumina and a variety of other minerals. The particular combination of minerals is what gives different types of clay their indivdual properties.In firing the clay doesn't melt like glass, but some of the compoentes of the clay will melt partially.
No
It provides the jobs that Hawaiians require.
clay
It is safe, the only issue I have is that the metal is going to expand and the clay will shrink. This may cause cracks in the clay.
metals are malleable