Other Jimness > Cinder Spires Spoilers
Cinder Spires Setting discussion [TAW Sample Chapter SPOILERS]
Mith:
For what it's worth, they have moved away from The Big K and are now defining the kilogram using Avogadro's number and Si-28. -
Quantus:
--- Quote from: Mith on October 20, 2015, 06:53:05 PM ---For what it's worth, they have moved away from The Big K and are now defining the kilogram using Avogadro's number and Si-28. -
--- End quote ---
Oh, sure, that's one of a bunch of new/revised definitions that have various levels of support. In the case of the Kilogram, it's the only one left that is still standardized to a specific artifact rather than a physical constant of some kind (though other are defined by the kg, so it's hidden in them too), and the two most popular methods are to base it off either the Planck constant or the Avogadro constant.
Mith:
From what I am finding, they are currently refining equipment for precision to go ahead with this transfer of the definition of the Kg. Which is good, because after that happens, we will no longer define one of our Seven Fundamental Units for Understanding Life, the Universe, and Everything on an over sized, multi-million dollar paper weight. :D
Quantus:
--- Quote from: Mith on October 20, 2015, 10:19:55 PM ---From what I am finding, they are currently refining equipment for precision to go ahead with this transfer of the definition of the Kg. Which is good, because after that happens, we will no longer define one of our Seven Fundamental Units for Understanding Life, the Universe, and Everything on an over sized, multi-million dollar paper weight. :D
--- End quote ---
Yup, if they succeed at solving the manufacturing problems they hope to offer it up as a viable Atom-counting alternative to the Planck constant (energy based) approach, which it turns out was accepted back in 2011 as the path forward, though at the same time they (the International Committee for Weights and Measures) postponed their next conference to 2015, so the change-over hasnt happened yet. Well, what they did was: "Accept a resolution to 'Take note of an intention' that the kilogram be defined in terms of the Planck constant, h (which has dimensions of energy times time) together with other fundamental units." That contains far too much parliamentary gibberish for me to pull any definitive meaning :P
Mith:
I think it's more the sensitivity of everything involved makes the desire for a second path to check the other is what is making the switch over so slow, and so expensive. That and the bureaucracy needed to organize everything also seems to make things so slow. But I am sure they had good reasons.
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