Menja se nekoliko fundamentalnih fizičkih konstanti. Menja se međunarodni SI sistem mera. Takođe, menja se i sam pristup defnisanju nekih osnovnih fizičkih veličina. One se više neće menjati, tj postaju fiksni brojevi nezavisni od eventualnih budućih još preciznijih merenja stvarne vrednosti tih veličina.
Scientists Update Four Key Fundamental Constants
https://scienmag.com/scientists-update- ... constants/
The updated constants include the Boltzmann constant (which relates temperature to energy), and the Planck constant (which can relate mass to electromagnetic energy), the charge of the electron and the Avogadro constant (the quantity that defines one mole of a substance).
"The values of these four constants won't change anymore," said Peter Mohr, a scientist at the National Institute of Standards and Technology (NIST) and a member of the CODATA TGFC. The values will be fixed and stated as exact values, he said, just as the speed of light is currently defined as an exact value. This in turn will allow scientists to focus on measurements that compare other important quantities to the constants.
Together with previously accepted constants, the updated values would redefine the SI's seven base units, which include the kilogram (the unit of mass), the kelvin (the unit of temperature), and the ampere (the unit of electrical current).