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Detail of "Pythagorean slate" w Harmonic Ratios from Raphael's "School of Athens" cc @FlaviaDeNicola @rmathematicus
@Ellen_Lee3 @Bebejax btw - there's always this little fellow in a c1506-7 Raphael panel painted in Florence
That awesome Renaissance themed t-shirt is back on sale! http://t.co/12pzZgmnh5 cc @Obridge @albertis_window
Ethereal study (now in New York) of the head of the Virgin by Leonardo for the Louvre "St Anne" cc @DaVincis_Starz
Distinct Leonardesque elements in this painting, but his personal involvement in its execution is a matter of debate