- #1
swampwiz
- 571
- 83
If I had had enough space to enter the proper question, it would have been:
Is the triple point of water which is used for the definition of the unit of Kelvin defined as water having a certain isotopes such as 2 Hydrogen-1 & 1 Oxygen-16?
Or would the error introduced by using different isotopes not make a difference up to the level of desired accuracy - or is there a defined occurrence of the various isotopes? It seems that the water that exists outside of the Earth could have a different isotope occurrence, and therefore presuming that water everywhere in the Universe has the same occurrence of the isotopes as on Earth would be a gaiocentric presumption.
Is the triple point of water which is used for the definition of the unit of Kelvin defined as water having a certain isotopes such as 2 Hydrogen-1 & 1 Oxygen-16?
Or would the error introduced by using different isotopes not make a difference up to the level of desired accuracy - or is there a defined occurrence of the various isotopes? It seems that the water that exists outside of the Earth could have a different isotope occurrence, and therefore presuming that water everywhere in the Universe has the same occurrence of the isotopes as on Earth would be a gaiocentric presumption.