When the hell we will be able to define a kilogram?

1 ml of water weights 1 gram and need 1 J to rise of 1K in heat.

This is an approximation its not actually true

youtube.com/watch?v=ZMByI4s-D-Y

soon?
en.wikipedia.org/wiki/Proposed_redefinition_of_SI_base_units

>Well??

One mole of carbon 12 is 12 gram. Extrapolate from there.

>he doesn't know about pound-moles

this

This is likely not to be the primary definition of the kilogram. However, the operationalization is no longer going to be the definition, so they are going to allow for multiple "official" ways of measuring each unit. This may be one of them.

oops not that one, this one: