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  • Nuclear weapon - Wikipedia
    Both bomb types release large quantities of energy from relatively small amounts of matter Nine sovereign states are believed to possess nuclear weapons as of 2026: United States, Russia, the United Kingdom, France, China, India, Pakistan, North Korea, and Israel
  • Nuclear weapon | History, Facts, Types, Countries, Blast Radius . . .
    Atomic bombs work with nuclear fission Two subcritical masses of uranium or plutonium are quickly put together to form a critical mass —that is, enough material to start a runaway fission reaction Hydrogen bombs work with nuclear fusion They have two stages: a primary and a secondary
  • NUKEMAP by Alex Wellerstein
    NUKEMAP is a website for visualizing the effects of nuclear detonations
  • NukeSim - Nuclear Explosion Simulator Nuclear Education Hub
    Interactive nuclear explosion simulator with scientific accuracy Comprehensive nuclear education covering nuclear weapons, nuclear technology, nuclear policy, and nuclear science Visualize blast radius, thermal radiation, and fallout effects
  • Nuclear Weapons - Our World in Data
    Explore research and data on nuclear weapons By Bastian Herre, Pablo Rosado, and Max Roser This page was first published in August 2013 and last revised in February 2024 The world’s nuclear powers have more than 12,000 nuclear warheads
  • Nuclear weapons: a beginner’s guide to the threats
    In January 2022, the USA, Russia, the UK, France, and China – the five nations that have possessed nuclear weapons for the longest - issued a joint statement saying that “a nuclear war cannot be won and must never be fought” reiterating a 1985 declaration
  • Status of World Nuclear Forces - Federation of American Scientists
    Of the world’s approximate 12,187 nuclear warheads, roughly 9,745 are in military stockpiles for use by missiles, aircraft, ships, and submarines The remaining warheads have been retired but are still relatively intact and are awaiting dismantlement
  • Atomic Bomb: Nuclear Bomb, Hiroshima Nagasaki - HISTORY | HISTORY
    Scientists first developed nuclear weapons technology during World War II Atomic bombs have been used only twice in war—both times by the United States against Japan at the end of World War II,
  • How Nuclear Bombs Work | HowStuffWorks
    As the U S and the Soviets slipped into a decadeslong period of animosity that became known as the Cold War, both nations developed an even more powerful nuclear weapon — the hydrogen bomb — and built arsenals of warheads
  • Nuclear Weapons: Who Has What at a Glance - Arms Control Association
    At the dawn of the nuclear age, the United States hoped to maintain a monopoly on its new weapon, but the secrets and the technology for building the atomic bomb soon spread The United States conducted its first nuclear test explosion in July 1945 and dropped two atomic bombs on the cities of Hiroshima and Nagasaki, Japan, in August 1945





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