British nuclear explosion codenamed Grapple Y had a yield of 3 megatons was conducted near Christmas Island on April 28, 1958. It remains the largest British nuclear weapon ever tested.
Breakaway - atomic explosion, 10 kilotons, tower, Maralinga Range, South Australia, October 21, 1956.
500 tons of TNT are detonated in Alberta, Canada on July 17, 1964, as part of Operation Snowball to simulate the effects of a nuclear explosion.
April 22, 1952. KTLA-TV broadcast the 31-kiloton blast live from Nevada Test Site 75 miles from Las Vegas, and it was carried by major networks.
Aerial view from a U.S. Navy Martin PBM Mariner of Crossroads Baker atomic test, less than one second after detonation. USS Saratoga can be seen in the center, IJN Nagato on the opposite side of the blast. 25 July 1946.
16 November 1952 a B-36H bomber dropped the Mk.18 Super Oralloy Bomb over a point 610 m north of Runit Island in the Enewetak atoll, resulting in a 500 kiloton explosion at 450 m.
Badger nuclear test, 23 kilotons, 91 m tower, Nevada Test Site, 4 35 a.m. April 18, 1953. 2800 military personnel and 39 helicopters participated in the military exercises.
Baker — underwater explosion, 23 kilotons, underwater, Bikini Atoll, July 24, 1946.
