[LEAPSECS] Michael, brother of Jerry - a parable of timekeeping

Peter Vince pvince at theiet.org
Fri Oct 24 03:45:17 EDT 2008

Hi Rob,

Two would give you SOME confidence if they read the same, and at least you would know to be wary if they didn't. With
three, you can use a majority voting system, and that is what we do (although we are not at sea!)

Peter Vince (London, England)

On Fri Oct 24 5:31 , Rob Seaman <seaman at noao.edu> sent:

> From Jack London, a question: "Why did you sail with only one



> http://catless.ncl.ac.uk/Risks/25.41.html#subj10


>If two chronometers are "no better than one", why are three better

>than two?


>Rob Seaman

>National Optical Astronomy Observatory

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