Thought for the month

“A new idea is delicate. It can be killed by a sneer or a yawn; it can be stabbed to death by a quip and worried to death by a frown on the right man’s brow.” Ovid, Roman Poet (43 BC – 17 AD).

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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