The Science and Spirit of the Winter Solstice Astronomy 

The Science and Spirit of the Winter Solstice

By Jonathan Trinastic @jptrinastic If you happen to walk the beautiful slopes of Machu Picchu this summer, look for the ruins of a solitary tower built around a single slab of stone. Arrive early in the morning around June 20. You should find the sun shining through a window at just the right angle to illuminate a slim groove etched into the stone. Long ago, this annual sign was cause for celebration! Each year, the event marked the winter solstice in the Southern Hemisphere, the shortest day of the year…

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