Thursday, December 23, 2021

Orbital Precision

  Every year I watch as the sun aligns with this farm silo and casts a long shadow across my walking path. The shadow is surely a quarter mile in length (it extends well behind me in this picture).


 Of course this happens on multiple days centered on this date but there is only one day when the shadow is at this  exact spot. How faithful is the orbit of the Earth!

 I walk nearly every morning,  usually two miles, and I  watch for this to happen (just as I watch for my shadow the be cast upon a tree on the same day every year). How many times have I been at this exact same spot at this exact time on this exact date and watched the sun rise behind this silo?

 It is something I can depend on.




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