Search results
Results from the WOW.Com Content Network
A pot-in-pot refrigerator, clay pot cooler [1] or zeer (Arabic: زير) is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer clay pot (lined with wet sand) containing an inner pot (which can be glazed to prevent penetration by the liquid) within which the food is placed. The evaporation of the ...
Grog, temper for clay. Grog, also known as firesand and chamotte, is a raw material usually made from crushed and ground potsherds, reintroduced into crude clay to temper it before making ceramic ware. It has a high percentage of silica and alumina. It is normally available as a powder or chippings, and is an important ingredient in Coade stone.
Hand-building: This is the earliest forming method. Wares can be constructed by hand from coils of clay, combining flat slabs of clay, or pinching solid balls of clay or some combination of these. Parts of hand-built vessels are often joined with the aid of slip. Some studio potters find hand-building more conducive for one-of-a-kind works of art.
There are also several traditional techniques of handbuilding, such as pinching, soft slab, hard slab, and coil construction. Other techniques involve threading animal or artificial wool fiber through paperclay slip, to build up layers of material. The result can be wrapped over forms or cut, dried and later joined with liquid and soft paperclay.
They are commonly durable buildings built from timber, stone or clay used to safely store valuable commodities. Kura in rural communities are normally of simpler construction and used for storing grain or rice. Those in towns are more elaborate, with a structural timber frame covered in a fireproof, clay outer coating.
Ong (옹; 甕, 瓮) refers to a clay jar. [citation needed] Pottery has been used on the Korean peninsula since prehistoric times for food storage. In the Three Kingdoms period, images of large and small pottery appear on the murals of Anak Tomb No. 3 in Goguryeo, and in Baekje and Silla. Records indicate that they were used to store rice ...
The compositions of earthenware bodies vary considerably, and include both prepared and 'as dug'; the former being by far the dominant type for studio and industry. A general body formulation for contemporary earthenware is 25% kaolin, 25% ball clay, 35% quartz and 15% feldspar. [9] [12] Shaping
Benefits of using the hermetic storage method include (i) enhances grain life in a much safer and it is rodent-free, weevils-free, pesticides-free and prevents infestation of insects, (ii) the storage process is defiant and resistant to harsh conditions (with the exception of extremely harsh conditions i.e. temperature 0 to -20 degrees Celsius ...