Partial lockdowns could lead to an explosion in coronavirus cases, according to a top German researcher. That is because the more people are in fewer places in less time, the more likely they are to pass on the virus, said Prof. Andrei Sommer, a visiting professor at Isra University in Jordan and formerly of the University of Ulm, in an interview with The Jerusalem Post. He compared the results of partial lockdowns to a nuclear explosion. The immense destructive power of atomic weapons is the result of a sudden release of energy produced by splitting the nuclei of the fissile elements making up the bombs' core, according to the Atomic Heritage Foundation in an article about the science behind the atomic bomb. In order to detonate an atomic weapon, you need a critical mass of fissionable material. The more you have, the greater the odds that an explosion will occur.