In 1952, the very first thermonuclear bomb was detonated. Ivy Mike was the first full test of the Teller–Ulam design, a staged fusion device. Its estimated yield was 10.4 megatons of TNT.

https://video.nostr.build/75085d65da7d8cec19197b5988f9d1c80b447e6deda8dac5dc34a726cdaed0f6.mp4