Food and drink prohibitions In Argentina and other Spanish language countries bull's testicles are served as "huevos de toro" or 'bull's eggs'. In some regions, such as the European Union, brains and other organs which can transmit bovine spongiform encephalopathy ("mad cow disease") and similar diseases have now been banned from the food chain as specified risk materials. Although eating the stomach of a goat, cow, sheep, or buffalo might be taboo, ancient cheesemaking techniques utilize stomachs (which contain rennet) for turning milk into cheese, a potentially taboo process. Newer techniques for making cheese include a chemical process with artificial rennet. This means that
Grinding wheel wear is generally composed of abrasive grains held together by a bond structure which contain some amount of porosity. The grinding wheel typically operates at high rotational speeds. The wheel speed depends several factors, some of which included the grindability of the wheel, the shape of the part, and the material of the workpiece. These properties will affect important parameters such as the surface finish, surface integrity, and wheel wear. Likewise, the grinding wheel speed will depend on which abrasive process is needed and which finishing process is desired. A worn grinding wheel can be dressed to restore its grinding properties.