nuclear bomb

Fission-powered explosive device

A nuclear bomb is a weapon that derives its destructive force from nuclear reactions—either fission (splitting heavy atoms) or fusion (combining light atoms).

The explosions release enormous energy, producing blast waves, intense heat, and radioactive fallout.

Nuclear bombs were used twice in warfare, against Hiroshima and Nagasaki in 1945.

The term covers both atomic bombs (fission) and hydrogen bombs (fusion).

The threat of nuclear bombs shaped Cold War politics.

effects

fallout

Post-blast atmospheric particles

fireball · shockwave · electromagnetic pulse · EMP · ground zero · crater · vaporization · firestorm · black rain · flash blindness

policy

treaty

Binding pact between nations

stockpile · test ban · SALT · START · arms control · inspection · sanctions · rogue state · Manhattan Project · Los Alamos

devastation

Hiroshima

First nuclear-struck city

apocalypse · catastrophe · wasteland · destruction · casualties · survivors · aftermath · desolation · ruins · incineration

deterrence

mutual assured destruction

Reciprocal annihilation prevents war

  • cold warHostility without open fighting
  • arms raceEscalating weapons accumulation between nations
  • brinkmanshipPushing conflicts to disaster's threshold

non-proliferation · balance of power · second strike · first strike · deterrence · MAD · escalation · superpower · containment · hotline

physics

fission

Nuclear breakup releasing energy

plutonium · uranium · enrichment · isotope · neutron · implosion · yield · kiloton · megaton · subcritical

delivery

ICBM

Ocean-spanning nuclear delivery system

  • warheadMunition's explosive section
  • missileSelf-guided airborne weapon
  • bomberExplosive-delivery aircraft or saboteur

submarine · payload · ballistic · cruise missile · silo · launch · reentry vehicle · Trident · B-52 · Enola Gay

Categories
Opposites
weapon technology/destructive mechanism

nuclear bombconventional weapon

Non-WMD military armament

TNT · dynamite · hand grenade · sword · spear

scale of destructive power

nuclear bombfirecracker

Small celebratory explosive device

cap gun · pea shooter · popgun · slingshot · BB gun

creation vs. destruction

nuclear bombolive branch

Symbol of reconciliation

peace treaty · hospital · life-giving · healing · sanctuary

Family

bomb, nuclear, nucleus, nucleate, atomic bomb, antinuclear, nucleated, nonnuclear, nuclearize

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated PG-13