For the record, that's a segment from the documentary movie Trinity and Beyond: The Atomic Bomb Movie [1]. It's an incredible documentary and I thoroughly recom

For the record, that's a segment from the documentary movie Trinity and Beyond: The Atomic Bomb Movie [1]. It's an incredible documentary and I thoroughly recommend anyone interested in the development of atomic weapons finds a copy of it. [1]: https://en.wikipedia.org/wiki/Trinity_and_Beyond https://en.wikipedia.org/wiki/Trinity_and_Beyond