Masonry oven and the fire won't burn well. Modern masonry ovens sometimes bear little resemblance to their forebears, and can have just a cast deck (similar to a pizza stone) inside a more conventional oven exterior. Such devices are primarily used in commercial settings, though tabletop models are available. Cob is the British name for what is essentially adobe (from Arabic, "al toba," meaning "the mud;" "cob" is the Anglo-Saxon word for "lump," and is also used to describe round loaves of bread, or small, compact horses). As the most common building material on the planet, earth, clay and "cob" construction have
Ceramic armor back, or one universal plate on either front or back. Some vests permit the usage of small plates on the sides for additional protection. Ceramic plates issued by the United States military are called Enhanced Small Arms Protective Inserts (ESAPI). The approximate weight for one NIJ Type III plate is 4 to 8 pounds (1.8–3.6 kg) for the typical size of 10" by 12". There are other types of plates that come in different sizes and offer different levels of protection. For example, the MC-Plate (maximum coverage plate) offers 19% more coverage than a standard ceramic plate. Ceramic materials, materials