Conversion Center

Cubit is a historic unit of length used as a standard of measurement. This unit is defined as the length of a man's forearm from his elbow to the tip of his middle finger. Usually it was equal to 24 digits. One digit in English system is 3/4 of an inch, that makes a cubit 18 inches or 45.72 cm long.

Siegbahn is another mane for the X unit of length used to describe the wavelength of x-rays. This unit was named Siegbahn to honor the Swedish physicist Karl M.G. Siegbahn (1886-1978), who received the Nobel Prize in Physics in 1924 for his work in x-ray spectroscopy. It is equal to 1.0021×10^-013 meter.