03-24-2014, 04:10 PM
I understand that the length of the hours of the day varried based upon season and longitude.
The Romans must have had some way to adjust their sundials to show that. I know a sundial could be built for a specific longitude, but that does not account for changes by the seasons as days lengthened or shortened.
Furthermore, how was time measured after dark? I could guess water clocks, but requires that in March the clock needs to have four cups in it and in June, three cups because of the shorter nights..
How did they know how to measure to get the changing of the watches down right?
Again, thanks.
Tom
The Romans must have had some way to adjust their sundials to show that. I know a sundial could be built for a specific longitude, but that does not account for changes by the seasons as days lengthened or shortened.
Furthermore, how was time measured after dark? I could guess water clocks, but requires that in March the clock needs to have four cups in it and in June, three cups because of the shorter nights..
How did they know how to measure to get the changing of the watches down right?
Again, thanks.
Tom
AKA Tom Chelmowski
Historiae Eruditere (if that is proper Latin)
Historiae Eruditere (if that is proper Latin)