Different shapes of the nuclei on the grid.https://www.physik-astro.uni-bonn.de/en/news/internationales-forschungsteam-knackt-physik-nuss/meissner-pub5.png/viewhttps://www.physik-astro.uni-bonn.de/en/news/internationales-forschungsteam-knackt-physik-nuss/meissner-pub5.png/@@images/image-1200-6f7b80b610d0be83d4b3cfad969ec81c.png