@historyproductions.v2: Castle Bravo Nuclear Bomb Test 1954. Castle Bravo was the first United States hydrogen bomb test, conducted on March 1, 1954, at Bikini Atoll. It yielded an explosive force of 15 megatons of TNT—approximately 1,000 times more powerful than the bomb dropped on Hiroshima. This immense magnitude occurred because scientists miscalculated the chemical reaction of the lithium-7 fuel, resulting in an explosion 2.5 times larger than initially predicted. The miscalculation triggered a global environmental disaster, as winds carried highly radioactive coral ash toward inhabited islands in the Marshall Islands and the Japanese fishing vessel *Daigo Fukuryū Maru*, subsequently sparking a wave of international protest against nuclear testing. #History #coldwar #historytok #america #fyp