Convert X-unit to famn Online | Free Length Converter

X-unit

The X-unit (symbol: xu) is a very small unit of length used primarily to measure wavelengths of X-rays and gamma rays. It was introduced in the early 20th century for precision measurements in X-ray crystallography.

• 
  

  1 X-unit ≈ 0.1 picometers (pm) or 10⁻¹³ meters

  
  
• 
  

  It allows scientists to express extremely small wavelengths typical of X-rays, which are on the order of atomic spacing

  
  
• 
  

  The exact definition has varied historically, but the unit remains useful for comparing wavelengths in X-ray spectroscopy and crystallography

  
  

Though largely replaced by the picometer or ångström in modern usage, the X-unit played a crucial role in early developments of atomic-scale measurement.

Famn

A famn (also spelled fathom in English) is a traditional Scandinavian unit of length used primarily for measuring the depth of water or length of ropes and cables. It is roughly equivalent to 6 Swedish feet, which translates to about 1.828 meters (approximately 6 feet).

The famn is similar in concept to the English fathom, based on the span of outstretched arms.

While largely obsolete today, the famn was commonly used in maritime contexts in Norway, Sweden, and Denmark and remains part of historical measurements.

Summary:

• 
  

  1 famn ≈ 1.828 meters (6 feet)

  
  
• 
  

  Used to measure water depth and rope length

  
  
• 
  

  Traditional Scandinavian maritime unit

  
  
• 
  

  Equivalent to the English fathom