Convert X-unit to ell
Please provide values below to convert X-unit [X] to ell [ell], or Convert ell to X-unit.
How to Convert X-Unit to Ell
1 X = 8.767104111986e-14 ell
Example: convert 15 X to ell:
15 X = 15 × 8.767104111986e-14 ell = 1.3150656167979e-12 ell
X-Unit to Ell Conversion Table
| X-unit | ell |
|---|
X-Unit
An X-unit is a unit of length approximately equal to 1.002 x 10⁻¹³ meters.
History/Origin
The X-unit was proposed by the Swedish physicist Manne Siegbahn in 1919 for measuring the wavelengths of X-rays and gamma rays.
Current Use
The X-unit has been largely replaced by the angstrom and the picometer.
Ell
The ell is an obsolete unit of length, originally used for measuring cloth. Its length varied in different countries, but it was generally around 45 inches.
History/Origin
The word "ell" is derived from the Latin "ulna," meaning "forearm," as the unit was originally based on the length of the forearm.
Current Use
The ell is no longer in use.