“Those who cannot understand how to put their thoughts on ice should not enter into the heat of debate.” Friedrich Nietzsche, Philosopher (1844-1900).
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.