After Grace Cossington Smith’s Portrait of Diddy, c 1922.
The out-of-sight interplay of light and moisture on the pigment, white zinc oxide made electrons rearrange in the bonds to form peroxide, which scrambled the fibres in the paper of this portrait of her loving sister. In the nation’s gallery, students hear the story of the comings and goings of sub-atomic parts here in this art; the sketch fully restored. Electrons in orbitals all around them, they think as they leave, like the sparkle on the surface of the city’s lake and trees, light striking the cells of all the city’s leaves.
Feature image via 'Art Collection - The Metropolitan Museum of Art'