Porcelain single operation. In this process, "green" (unfired) ceramic wares are heated to high temperatures in a kiln to permanently set their shapes. Porcelain is fired at a higher temperature than earthenware so that the body can vitrify and become non-porous. Porcelain originated in China, and it took a long time to reach the modern material. Until recent times, almost all East Asian porcelain was of the hard-paste type. There is no precise date to separate the production of proto-porcelain from that of porcelain. Although proto-porcelain wares exist dating from the Shang dynasty (1600–1046 BC), by the time of the Eastern
Querelles de famille In the other, he asks for the creation of a "Ministry of Noise", charged with legislating schedules for the use of musical appliances and radios on beaches, with studying the impact of noise on health, with proposing industrial procedures for the neutralization of noise, and finally, his dream, with creating a national park of silence. This novel directly follows "Scènes de la vie future" (Scenes of Future Life) which recounts his trip to the United States in the years 1929 and 1930 and the excesses of the consumer society that he discovers there. Querelles de famille Querelles de famille (Family