Paris
We spent a half-day here in preparation for our morning flight home tomorrow. We visited the Orangerie which has just recently reopened but my favorite part was a visit to Saint Sulpice to see the Rose Line from the “Da Vinci Code”—and we learned stuff. First, the line is actually called the Gnomon Line and it was used for astronomical study. Here’s the Wikipedia entry:
“In 1727 Languet de Gercy, then priest of Saint-Sulpice, requested the construction of a gnomon in the church as part of its new construction, to help him determine the time of the equinoxes and hence of Easter (since Easter Sunday is to be celebrated on the first Sunday following the full moon after the spring equinox). A meridian line of brass was made, running across the floor and then ascending a column or “obelisk” of white marble, nearly 11 meters high, at the top of which is a sphere surmounted by a cross. The column is dated 1743.
“In the south-end window a system of lenses was set up, so that a ray of sunlight shines onto the brass line. [Linda’s Note: We could see the hole in the stained glass window where the light shines in.] At noon on the winter solstice (December 21), the ray of light touches the brass line on the obelisk. At noon on the equinoxes (March 21 and September 21), the ray touches an oval plate of copper in the floor near the altar.
“Constructed by the English clock-maker and astronomer Henry Sully, the gnomon was also used for various scientific measurements: This may have protected Saint-Sulpice from being destroyed during the French Revolution.”
Don’t say you don’t learn stuff here!
