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List of scale model sizes
Visual acuity - Wikipedia ... Visual acuity
Rod (unit) - Wikipedia ... Rod (unit)
Inch - Wikipedia ... Inch
1⁄33 m. ~30.30 mm. imperial/US units. ~ 0.099 419 ft. ~ 1.1930 in. A cun (Chinese: 寸 ts'wun), often glossed as the Chinese inch, is a traditional Chinese unit of length. Its traditional measure is the width of a person's thumb at the knuckle, whereas the width of the two forefingers denotes 1.5 cun and the width of four fingers (except the ...
System of units of measurement
Spatial frequency is a reciprocal length, which can thus be used as a measure of energy, usually of a particle. For example, the reciprocal centimetre, cm −1, is an energy unit equal to the energy of a photon with a wavelength of 1 cm. That energy amounts to approximately 1.24 × 10 −4 eV or 1.986 × 10 −23 J. The energy is inversely ...
Japanese units of measurement