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[jsr363-experts] Re: Missing quantities in specification
- From: Werner Keil <
>
- To: "
" <
>
- Subject: [jsr363-experts] Re: Missing quantities in specification
- Date: Mon, 15 Dec 2014 16:05:32 +0100
Yes, as I feared, many of the links are dead now;-O
http://www.bipm.org/en/measurement-units/base_units/
no longer works, Wikipedia is also affected btw. (they depend on
contributions just like this JSR;-)
Will try to fix it at least for BIPM.
Werner
On Mon, Dec 15, 2014 at 4:03 PM, Werner Keil
<
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wrote:
>
Yep, it's "Information" now, similar to e.g. "Radioactivity" which had a
>
more complex name or "Speed" instead of "Velocity".
>
>
The quantities in the API are SI ones, listed here on Wikipedia (did they
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miss anything?;-)
>
http://en.wikipedia.org/wiki/International_System_of_Units
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>
There's this BIPM brochure, which now has a nice online version, too:
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http://www.bipm.org/en/publications/si-brochure/
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>
We might prefer to quote it (and where appropriate also relevant
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sub-sections) rather than pointing to a PDF, especially if that seems
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outdated now
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>
Werner
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>
On Mon, Dec 15, 2014 at 2:41 PM, Martin Desruisseaux <
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>
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wrote:
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>
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> The table provided in the "*Supported quantities*" section of the
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> specification is missing the following types, compared to the current
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> Javadoc:
>
>
>
> - Action
>
> - AngularAcceleration
>
> - AngularSpeed
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> - Dimensionless
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> - DynamicViscosity
>
> - ElectricPermittivity
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> - Information
>
> - InformationRate
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> - IonizingRadiation
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> - KinematicViscosity
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> - Luminance
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> - MagneticFieldStrenght
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> - MagneticPermeability
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> - MassFlowRate
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> - Torque
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> - VolumetricDensity
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> - VolumetricFlowRate
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> - WaveNumber
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>
>
> The following type is not present anymore (or was it renamed
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> "Information"?)
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>
>
> - DataAmount
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>
>
> My question is: what is the criterion for deciding which quantity to put
>
> in the javax.measure.quantity package? What prevent me from pushing for
>
> a "Salinity" unit (a very fundamental unit in oceanography)? I mean, we
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> can not put all units used in the world, so we probably need to define a
>
> criterion for inclusion. What is that criterion?
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>
>
> Martin
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>