As far as the technical aspects of Solstice go, others can explain it much more clearly (and more thoroughly) than I can. To learn more, click on this link to the brainiacs at National Geographic.
Because this longest day has also brought some very welcome (and needed) sun and warmth, I’m tossing in this little poem, part two of a triptych of mine.
an orange balloon
tied onto a skinny wrist
ever so slightly