I've seen this video described as a musical depiction of all the nuclear bombs ever detonated. But that sort of makes it sound like you're about to get a particularly bombastic version of the 1812 Overture. Instead, "1945-1998" by Isao Hashimoto is more like an infographic with sound effects — or, possibly, a mash-up of the games Simon and Global Thermonuclear War.
What you get is an interesting depiction of nuclear tests through time — 2053 of them (including the non-test explosions at Hiroshima and Nagasaki). I found it particularly interesting to watch the slow ramp up over the course of the late 1940s and early 1950s, when months or years would tick by between tests. After that, beginning in the late 1950s, you see these patterns of sudden flurries of explosions, usually happening in the US and the USSR almost simultaneously. The cultural sense of panic is almost palpable.
In the photo above: "Manixia Thor (left) and a member of her all women’s bomb clearance team head into the field to clear unexploded ordnance in the Lao countryside." In April, Manixia is on a speakers' tour in the US, focused on the urgent need for funding of bomb clearance and survivor assistance efforts in Laos.
Baker was a 23-kiloton nuclear weapon that was detonated underwater at Bikini Atoll in 1946. The goal was to see what would happen to Navy boats if they were in the region where a nuclear bomb went off. The boats you see in this photo were unmanned, but there were sailors relatively close by, taking these shots. There's evidence that they weren't properly protected against fallout, and later used contaminated water to drink and bathe in. (Also, as a fictional side effect, Bikini Atoll nuclear tests like Baker might have been responsible for the creation of Spongebob Squarepants.)