@christianp Stability of atomic nuclei by numbers of protons and neutrons, wrapped around in a spiral to make it better fit into an image?
@christianp Stability of atomic nuclei by numbers of protons and neutrons, wrapped around in a spiral to make it better fit into an image?
@christianp
diagram of how water spirals down the plug hole in the northern hemisphere?
... hang on, i'll zip out to the bathroom and check.