Depends on how recently you mean. Since their inception they have revolutionized modern biology, and by extension medicine [1]. Also they gave us the seismic m

Depends on how recently you mean. Since their inception they have revolutionized modern biology, and by extension medicine [1]. Also they gave us the seismic monitoring network we currently use to understand the earth. Of course it wasn't the weapons that did this, but rather the offshoot technologies. But like every technology the first use was blowing something up, the later uses were arguably more peaceful. I would agree that these days there's a bit more divergence between weapons research and useful nuclear research. But there are still some things that might belong in both camps (e.g. inertial confinement fusion). [1]: https://en.wikipedia.org/wiki/Nuclear_medicine https://en.wikipedia.org/wiki/Nuclear_medicine