[time-nuts] Selling time to the railroad

Howard Davidson hld42 at att.net
Sat Nov 1 03:29:20 EDT 2014

The physics department at the little Liberal Arts college  I went to in 
Iowa, Grinnell college, used to sell time to the Rock Island Railroad. 
We had two excellent pendulum clocks that back when this was in action, 
were synchronized to zenith crossings of particular stars. This was a 
manual operation performed by undergraduates who were paid to be up at 
weird hours of the night. The time ticks from the clocks were 
transmitted to the Rock Island station in town electrically. I presume 
they distributed it by telegraph.


Howard L. Davidson
hld42 at att.net

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