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The mortar and pestle, with the Rod of Asclepius, the Green Cross, and others, is one of the most pervasive symbols of pharmacology. [10] For pharmaceutical use, the mortar and the head of the pestle are usually made of porcelain, while the handle of the pestle is made of wood. This is known as a Wedgwood mortar
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Using a nonporous ceramic mortar and pestle, a small quantity of the solid sample is ground up until the sample is exceedingly fine and has a glassy appearance. A drop of a mulling agent (see below) is added to the ground solid in the mortar. The mixture is further ground up to acquire a uniform paste with the consistency of toothpaste.
English: Wooden mortar and pestle found in the rice loft on Briars Plantation, John's Island (Charleston County), South Carolina. From the personal collection of the (anonymous) owner. From the personal collection of the (anonymous) owner.
Molcajete used to grind spices Molcajete as a food container. Molcajetes are used to crush and grind spices, and to prepare salsas and guacamole.The rough surface of the basalt stone creates a superb grinding surface that maintains itself over time as tiny bubbles in the basalt are ground down, replenishing the textured surface.
An usu (Japanese:, Japanese: 臼) [1] is a large Japanese stamp mill with a pestle called kine (, Japanese: 杵), used to pound rice or millet. While the function of an usu is similar to the smaller suribachi and surikogi mortars, the shape is very different, as the usu usually lacks the rough pattern in the bowl , and has a differently shaped ...
A farmer and his cow. The majority of herders in African countries are livestock owners. Livestock farming is a part of Nigeria's agriculture system. In 2017, Nigeria had approximately over 80 million poultry farming, 76 million goats, 43.4 million sheep, 18.4 million cattle, 7.5 million pigs, and 1.4 million of its equivalent. [26]
The economic history of Nigeria falls into three periods. They are the: pre-colonial, the colonial and the post-colonial or independence periods. [1] The pre-colonial period covers the longest the part of Nigerian history. The colonial period covers a period of 60 years, 1900-1960 while the independence period dates from October 1, 1960.