gamow99 Messages 71 Reaction score 2 Thread starter May 26, 2013 #1 How is the mass of an electron known down to 31 orders of magnitude? Shouldn't the mass be uncertain beyond a few decimal places?
How is the mass of an electron known down to 31 orders of magnitude? Shouldn't the mass be uncertain beyond a few decimal places?
dextercioby Science Advisor Insights Author Messages 13,423 Reaction score 4,244 May 26, 2013 #2 It is, the [itex]10^{-31}[/itex] is certain, the 9 something number at the front isn't.