“Prejudice is a great time saver. You can form opinions without having to get the facts”. Elwyn Brooks White, Author (1899-1985).
Friday, 16 December 2016
What is a zeptosecond - not a lot!
A team in Germany have measured helium photoionization with zeptosecond precision. This is
the greatest accuracy of time determination ever achieved, as well as the first
absolute determination of the timescale of photoionization.