"Einstein's Clocks, Poincares Maps: Empires of Time" Peter Galison.
Galison on C-Span Booknotes yesterday.

Poincare, the French mathematician plotted all sorts of data, including
his colds.
He started with mapping of coal mines, then went on to mapping the world.
Synchronisation of clocks was vital to accurate geographic measure.
Einstein working in the Swiss patent office was quite familiar with
problems of clocks.
Plotting of information provided new ways to see... leading to new ways
to see time and space.
Resulting in relativity and chaos theory.
It is an interesting presentation by Galison leading into a vision of
the interconnected global communications systems that we use every day.

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