after the war , fearing that britain would lose Earnings_and_losses its great power status , the british government resumed Process_start the atomic bomb development effort , now codenamed high explosive research Research .

The successful test Testing of an atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement , but Britain was still several years behind the United States in nuclear weapons technology .

The bulk of the object 's energy was absorbed by the atmosphere , with a total kinetic energy before atmospheric impact Influence estimated from infrasound and seismic measurements to be equivalent to the blast yield of 400–500 kilotons of TNT ( about 1.4–1.8 PJ ) range – 26 to 33 times as much energy as that released Causation from the atomic bomb detonated Attack at Hiroshima .