Compressed air or steam is also used for fashioning very large vessels, baths, dishes and reservoirs by the “sievert” process.
sievert Nielsen, whom I have mentioned elsewhere, was the fourth of my men.
sievert sie·vert (sē'vərt)
Abbr. Sv A unit of ionizing radiation absorbed dose equivalent in the International System of Units, obtained as a product of the absorbed dose measure in grays and a dimensionless factor, stipulated by the International Commission on Radiological Protection, and indicating the biological effectiveness of the radiation.