by Max Barry

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DispatchFactbookCulture

by The Endless Empire of Ermarian. . 21 reads.

De Rerum Mensuras

These are the scientific units of measure employed by the Empire:

Quantity

Unit

Definition

SI conversion

Historic notes

Time

rel

13657516140 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of a Cs-133 atom.

1.4857 seconds

1/65536 of an Ermarianese day (97,367 seconds)

Distance

nimi

The distance traveled by light in a vacuum in 1/287727188 of a rel.

1.5480 meters

1/224 of the length of an Ermarianese meridian (25,971.17 km)

Mass

tyrn

The mass of 545388496065712192 C-12 atoms

0.9056 kg

The mass of 1/212 cubic nimi of water at room temperature.

Temperature

Rano

1/16 of the triple point of Hydrogen

0.8627 Kelvin

Electric charge

Zetor

The charge carried by 1616 electrons

2.9555 Coulombs

The modern units are defined in a way that yields exact integer fractions for some of the conversions to SI units.

These are:

  • 13657516140 / 9192631770 rels/second

  • 1742895880252509 / 1125899906842624 nimi/meter

The Endless Empire of Ermarian

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