ABSOLUTELY FASCINATING! Pretty horrific.
For those without sound part of the experience is the tones (one tone for each month passing, a different tone for each year and each country has its own tone and color. They must also have some "scaling" to the size because I believe you can see the 1961 detonation of the "Tsar Bomba" in Novaya Zemlya by the USSR (the largest nuclear bomb detonated in history, originally designed to be 100MT but scaled back to 50MT to lower the amount of fallout.
It's pretty horrific to think we've developed these weapons such that we dare not use them in anger now (and ironically WE are the only ones to use them in anger twice) and so we can count each event. Seismologists can detect their detonation a planet away so it is hard to hide the tests.
For a truly interesting read I highly recommend Richard Rhodes "
The Making of the Atomic Bomb". It has a good dose of the basic science, the in-depth politics and reads like a thriller. It truly is one of the best books I've ever read. There's a companion volume called "
Dark Sun" about the development of the H-Bomb that is also quite good.
And then there's the classic "
The Curve of Binding Energy" by McPhee.
All of these are fantastic history, science and if you're so inclined, some of the best modern "horror" non-fiction you can imagine.