5 Real Facts That Sound Fake but Changed the World

1. A Hand-Sized Amount of Uranium Changed an Entire City

During World War II, the Hiroshima atomic bomb contained about 50 kg of Uranium-235.
Surprisingly, only a very small portion of that uranium actually reacted.
Yet, that tiny amount released enough energy to destroy an entire city.

This shows how powerful nuclear reactions really are—and why nuclear energy is so dangerous.