Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Little Boy

Little Boy was a type of atomic bomb created by the Manhattan Project during World War II. The name is also often used to describe the specific bomb (L-11) used in the bombing of the Japanese city of Hiroshima by the Boeing B-29 Superfortress Enola Gay on 6 August 1945, making it the first nuclear weapon used in warfare, and the second nuclear explosion…

Development, Design & Physical effects

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Little Boy. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Blast yield
13–16 kt (54–67 TJ)
Designer
Los Alamos Laboratory
Diameter
28 in (71 cm)
Filling
Highly enriched uranium
Filling weight
64 kg (141 lb)
Length
10 ft (3.0 m)

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Naming the bomb

Development

Design

Rehearsals

Bombing of Hiroshima

Physical effects

Post-WWII

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Little Boy

Nodes167
Edges166
Triples151
Avg. degree1.99
Density0.011976
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Little Boy

Top relations

related to Post-WWII · 29
Little Boy → Although, Army, At Sandia Base, Bobbie Griffin, By, Captains Albert Bethel, Director, Division, Eventually, Faced, Gradually, Groves, Hanford Site, Harlow, However, Little Boys, Los Alamos Laboratory's, Major General Leslie, Manhattan Project, No Little Boy
related to Naming the bomb · 28
Little Boy → Air Force, B-29s, Churchill, Dashiell Hammett, Fat Man, Hammett's, History, In September, It, Kasper Gutman, Los Alamos Laboratory, Mark, Mark II, Mark III, Norman, Project, Project Alberta, Project Silverplate, Ramsey, Robert Serber
related to Rehearsals · 28
Little Boy → B-29, Big Stink, Colonel Paul, Composite Group, Enola Gay, Hiroshima, It, Iwo Jima, Jabit, July, L-1, L-11, L-2, L-3, L-4, L-5, L-6, L-7, Major Charles, Of
related to External links · 14
Little Boy → Archived, ArchiveSimulation, Carey Sublette's The Nuclear, Definition, Imperial War, JPEG, Little Boy'The Nuclear Weapon, London UK, March, ModelHiroshima, Nagasaki Remembered, Nuclear Bomb, Wayback Machine, Weapon ArchiveNuclear Files
related to Design · 10
Little Boy → Canada, Cordite, Less, Little Boys, Most, MPa, Picatinny Arsenal, The, The Little Boy, This
related to Radiation · 10
Little Boy → Among, An, Because Little Boy, However, It, Its, Local, Over, To, With
has effect · 8
Little Boy → After, Approximately, April, At Hiroshima, Comparing, Hiroshima, Radio-transmitted, While
related to Blast · 7
Little Boy → Hiroshima, In Hiroshima, Knowledge, Most, Nagasaki, The, X-ray-heated
Manufacturer · 3
Little Boy → Expert Tool and Die Company, Detroit, Michigan, Naval Gun Factory, Washington, DC, Naval Ordnance Plant, Center Line, Michigan
Blast yield · 1
Little Boy → 13–16 kt (54–67 TJ)

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

bomb little boy hiroshima would uranium weapon design used nuclear gun yield target enriched project man 1945 blast projectile test

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Little BoyBlast yield13–16 kt (54–67 TJ)1.00infobox
Little BoyDesignerLos Alamos Laboratory1.00infobox
Little BoyDiameter28 in (71 cm)1.00infobox
Little BoyFillingHighly enriched uranium1.00infobox
Little BoyFilling weight64 kg (141 lb)1.00infobox
Little BoyLength10 ft (3.0 m)1.00infobox
Little BoyManufacturerNaval Gun Factory, Washington, DC1.00infobox
Little BoyManufacturerNaval Ordnance Plant, Center Line, Michigan1.00infobox
Little BoyManufacturerExpert Tool and Die Company, Detroit, Michigan1.00infobox
Little BoyMass9,700 lb (4,400 kg)1.00infobox
Little BoyNo. built1 (WWII) + 5 (Cold War)1.00infobox
Little BoyPlace of originUnited States1.00infobox
Little BoyProduced1945–19471.00infobox
Little BoyTypeNuclear weapon1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.