Rutherford (unit) Rutherford (unit) The rutherford (symbol Rd) is a non-SI unit of radioactive decay. It is defined as the activity of a quantity of radioactive material in which one million nuclei decay per second. It is therefore equivalent to one megabecquerel, and one becquerel equals one microrutherford. One rutherford is equivalent to 2.703 × 10 curie. The unit was introduced in 1946. It was named after British/New Zealand physicist and Nobel laureate Lord Ernest Rutherford (Nobel Prize in 1908), who was an early leader in the study of atomic nucleus disintegrations. After the becquerel was introduced in 1975 as the SI
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