One of the most remarkable things about nuclear chemistry is that geometry is now as important, if not more important, than the actual reactions going on. Ordinary chemists (and chemical engineers) are used to sloshing liquids around freely, piping them hither and thither and pouring them into all manner of vessels. But fissile solutions need far more delicate handling. The shape of the container now matters, and a small error in dimensions can mean the difference between life or death.
It's frightening, but it's also appealingly simple. The forces at work are so powerful that they reduce all problems down to the most basic shapes and arrangements of matter—spheres, cylinders, cones, ellipsoids.
One sees a glimpse of the same thing in the fictional depictions of magic and supernatural power. Instinctively we feel as though these powers, when wielded, will have a sort of geometric simplicity to them. Think of one of the most powerful images in cinema, namely Tetsuo awakening to his powers and creating a spherical bubble of safety around himself almost instinctively, refracting away the laser beams aimed at him. Does Tetsuo even know what he's doing in that moment? Maybe not, but it makes sense that whatever he's doing would be simple, and thus spherical.
Lines and planes and circles—all important in manifestations of immense physical power, whether it's nuclear or magical.
~Chara of Pnictogen