Thought for the month

“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.

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