Strontium unit Strontium unit The strontium unit is a unit used to measure the amount of radioactivity from strontium-90, a radionuclide found in nuclear fallout, in a subject's body. Since the human body absorbs strontium as if it were calcium, incorporating it into the skeleton, its presence is very common. One strontium unit is equal to one picocurie from strontium-90 per gram of calcium (37 becquerels per kilogram) in the subject's skeleton. The United States National Academy of Sciences holds that the maximum safe measure of strontium-90 in a person is one hundred strontium units (3700 Bq/kg). The average American is estimated
Geometrized unit system have the geometric dimension of "length". Physical quantities such as angular momentum which can be identified with the magnitude of a bivector have the geometric dimension of "area". Here is a table collecting some important physical quantities according to their dimensions in geometrized units. They are listed together with the appropriate conversion factor for SI units. This table can be augmented to include temperature, as indicated above, as well as further derived physical quantities such as various moments. Geometrized unit system A geometrized unit system or geometric unit system is a system of natural units in which the base physical