Everybody knows that the shortest day is the first day of winter, which is usually December 21 in the Northern Hemisphere. (Sorry readers from down-under, but we’re rather geocentric that way.)
So, does the shortest day have the latest sunrise and the earliest sunset? Is there a symmetry between dawn and dusk?
Perhaps you’ve never considered it, but one can find sunrise and sunset times for many cities around the world at http://www.timeanddate.com and probably other sites, too.
When we have more time, we’ll write about how the earth’s axis,… Read the rest

















































