Convert siegbahn to marathon
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 marathon:
Marathon is a long distance foot race with an official distance of 42.195 kilometers. The name Marathon comes from the legend of Pheidippides, a Greek messenger, who was sent from the battlefield of Marathon to Athens to announce that Greeks won Persians in the battle of Marathon, in which he had just fought. Pheidippides ran the entire distance without stopping and burst into the assembly, exclaiming "ΝΕΝΙΚΗΚΑΜΕΝ" (We have won.) before collapsing and dying.