Convert siegbahn to span
Selected category: length.
Definition and details for siegbahn:
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.
Definition and details for span:
Span is a traditional unit of length equal to 9 inches or 22.86 mm. A span was defined as the length of the span of a man's hand with fingers stretched out as far as possible. The name comes from the old English word "spann".