A microkernel implements all drivers as user-space programs, and implements core features like IPC in the kernel itself. A monolithic kernel, however, implements the drivers as a part of the kernel...
Porcelain is made with kaolin clay. Kaolin is white clay that retains its white color when fired. It is fired at temperatures in excess of 1300 C and is more fully vitrified than stoneware. It is usually covered with a clear glaze, which allows the white body to show.
Although bone chinaâs kaolin [clay] body is still strong and is used on the finest tables in the world, porcelainâs clay body is stronger, and I recommend you choose fine porcelain if your children are often dining with you at table.