A photograph of a stained glass window on the left and images of "Rayleigh light scattering of nanoparticles" on the right.
Left: Stained glass window by Giovanni di Domenico (Florentine, active c. 1500) entitled, The Virgin Annunciate, created between 1498 and 1503. The picture shows the full-length Virgin looking down to the left. She is surrounded by an arch of flowers.
Right: On the right is an image illustrating "Rayleigh light scattering of nanoparticles." Six dots of different colors run across the top. Arrows of the same colors point to each nanoparticle’s size in the following order from left to right: Red - Ag 100nm, gold - Au ~100nm, green - Au ~50nm, creamy white - Ag ~100nm, pale blue - Ag ~80nm, and darker blue - Ag ~40nm. Below these sizes is a scanning electron microscope image showing the composition of each nanoparticle. In the bottom right corner is a 200nm scale.
Credit: National Gallery of Art, Washington, D.C. (stained glass); Chad A. Mirkin, Institute for Nanotechnology, Northwestern University (nanoparticles)