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Author Topic: What happened to Gt C?  (Read 2059 times)

Xriqxa

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What happened to Gt C?
« on: August 23, 2014, 07:12:54 AM »
Wasn't there this mass standard back in A-8 called Gt C?

What happened to it? Having kg and moon mass back-to-back seems really black and white, and both are very hard to use for atmospheres and small objects like asteroids.

I can't see why it was removed in the first place.

Can we bring back Gt C please?

gabriel.dac

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Re: What happened to Gt C?
« Reply #1 on: August 23, 2014, 10:02:26 AM »
Oh, I didn't notice that. Thank GOD it was removed. Totally useless unit. I didn't even know what that meant

C7

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Re: What happened to Gt C?
« Reply #2 on: August 23, 2014, 12:32:00 PM »
It's gigatons of carbon, and climate relative only. We added some checks to make sure values are only displayed in units relevant to them, instead of all units for all things.

Geers

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Re: What happened to Gt C?
« Reply #3 on: August 23, 2014, 12:50:34 PM »
It's gigatons of carbon, and climate relative only. We added some checks to make sure values are only displayed in units relevant to them, instead of all units for all things.
There needs to be something between kilogram and lunar mass. It's a pretty big gap.

lmgg

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Re: What happened to Gt C?
« Reply #4 on: August 23, 2014, 03:29:37 PM »
Maybe gigagrams or teragrams, or maybe Ceres' mass.

Here may be some interesting ideas: http://en.wikipedia.org/wiki/Orders_of_magnitude_%28mass%29#106_to_1011_kg

Xriqxa

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Re: What happened to Gt C?
« Reply #5 on: August 24, 2014, 12:07:20 AM »
It's gigatons of carbon, and climate relative only. We added some checks to make sure values are only displayed in units relevant to them, instead of all units for all things.

Yeah, but Luna and a kilogram are pretty far apart. There should be a median of some sort, like megaton. Ceres mass is too vague. You need something to relate to.

For atmosphere, why isn’t there just a “1 Earth Atm Mass” option? I mean, seriously, I don’t take my own side too often but it’s a great idea to just add “Earth Atm” for atm mass options.

nosirrbro

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Re: What happened to Gt C?
« Reply #6 on: August 24, 2014, 05:59:59 PM »
We really do need an intermediate unit. Its hard imagining what 5.2 X 10^20 kg is.

lmgg

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Re: What happened to Gt C?
« Reply #7 on: August 25, 2014, 02:38:29 AM »
It seems there is nothing astronomically intuitive to use as a mass unit between the kilogram and lunar mass.
A Giza's pyramid worth of mass? A teaspoon of neutron star matter mass? These simply do not work.
An intermediate solution may be telling the app to show the magnitude with the "nearest" unit, so it shows for example 8.52 X 10^18 kg as 0.0000712 lunar masses (I don't know, it's an example).
If a new mass unit it's going to be added, I'd stick to giga/tera/petagram (or at least Mkg, Gkg...), altough they're not very intuitive, they're standard.