Recent content by recniabsal

  1. R

    High School Where does the figure for a proton's rest mass come from?

    It is a calculation. See that multiplication symbol in-between?
  2. R

    High School Where does the figure for a proton's rest mass come from?

    The proton rest mass value calculation of 1.672,621,71?, times 10 inverse 27 kg, where does the figure originate from? What kind of figure is it?