https://www.ucsusa.org/resources/how-nuclear-weapons-work
> Modern nuclear weapons work by combining chemical explosives, nuclear fission, and nuclear fusion. The explosives compress nuclear material, causing fission; the fission releases massive amounts of energy in the form of X-rays, which create the high temperature and pressure needed to ignite fusion.
Gen III nuclear reactors like those being installed at Vogtle and other sites area 21st century design.
Is fusion weapon research informative of fusion reactor research, and vice versa?
The nearest nuclear weapon is around 800km from my location, so you could say they're pretty effective at this.
That being said I don't believe it's mainly the nuclear weapons that let me live in peace, but I like to believe they're a component of that.
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).
But yea, not nukes themselves, just the technology and innovations that they made along the way... were the real treasure?