Thought for the month

“Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.” Maire Curie, Scientist (1867-1934).

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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