The world's first underwater nuclear explosion

The Crossroads campaign was the first nuclear weapons test after the US Trinity test in July 1945 and also the first activation of nuclear equipment after the Fat Man nuclear activation on August 9 / 1945. The Crossroads campaign consists of two triggers with two bombs: Able and Baker. Mushroom cloud and water column rise from the nuclear explosion Baker on July 25, 1946. Photo taken from a tower on Bikini Island 5.6 km away.

Crossroads Able , a nuclear weapon deployed on no 23 kiloton destructive power exploded on July 1, 1946. The bomb uses and consumes the famous Abe core, which claimed two scientists' lives in two separate serious accidents.

The target ships and support ships in the Crossroads campaign appeared Pearl Harbor on February 27, 1946.

The explosion bounced two million tons of water and sand into the air, creating a water column of nearly 1,830m high, 600m wide, 91m thick. 57 mice, 109 mice, 146 pigs, 176 goats and 3,030 white mice were taken to 22 nearby target ships for observation. 35% of animals die from direct effects of explosions or radiation exposure.

Nuclear clouds rise, revealing a black standing object, larger than the ships in front. Most observers believe it was the Arkansas warship flipped over.

Observers wear binoculars to see nuclear explosions at sea.

The explosive Bomb creates a white "crack" on the surface of the sea under the ships, and the column of smoke emerges from the nuclear cloud. Bikini island in the distance. Bombs under the sea have 21 kiloton destructive power.

Cauliflower explosion caused by Baker bomb.

The cloud caused by the Able explosion rises from the lagoon near Bikini Island (behind). The cloud carries radioactive toxins to the stratosphere.