A male Siberian flying squirrel (Pteromys volans) at the Plzen Zoo in the Czech Republic. | Flying squirrel, Squirrel, Animals
https://www.britannica.com/science/plutonium-239 2020-11-14 monthly 1.0 https://cdn.britannica.com/06/114406-050-21C77AA0/blast-fission-component-fusion-explosion-bomb-warhead.jpg The blast from a primary fission component triggers a secondary ...
Volume CIX, Issue 3 by The Stuyvesant Spectator - issuu