Subject: Radiation is easy.
Author:
Posted on: 2020-08-02 11:58:42 UTC

The SI radiation units are:

1 Becquerel = 1 s-1. In Quenya, that's 3600 lúmi-1

1 Sievert (and indeed 1 Gray) = 1 m2/s2, but also 1 J/kg. Since we already have 1J = 14.9 milin.lár2/lúmë2, we can fairly quickly divide by... 15 432 milin to get 9.655 x 10-4 lár2/lúmë2.

Magnetism is more difficult: the SI units are based on amps (eg, 1 Tesla = 1 kg/s2A, or one Newton per meter per amp). Since it's a relatively new field, there don't seem to be any historical units with quirky definitions I can work on. All the SI units involving electromagnetism are people's names, it's awful!

-- oh! Aha. There are systems which define electromagnetic units in terms of other units: see here. The handy definition is:

"two equal point charges spaced 1 centimetre apart are said to be of 1 franklin [charge, = 3.33564×10−10 coulombs] each if the electrostatic force between them is 1 dyne [= 10−5 N]."

So it's an experimental value, which can fairly hideously be defined as 1 g1/2cm3/2/s. I should be able to convert that into both Quenya and SI... but later. :)

hS

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