Frisch–Peierls memorandum
E8572
The Frisch–Peierls memorandum was a pivotal 1940 document by physicists Otto Frisch and Rudolf Peierls that first outlined the feasibility of a small, practical uranium-based atomic bomb, helping to catalyze British and later Allied nuclear weapons research.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Frisch–Peierls memorandum canonical | 6 |
| Peierls–Frisch memorandum | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T53736 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Frisch–Peierls memorandum Context triple: [MAUD Committee, influencedBy, Frisch–Peierls memorandum]
-
A.
MAUD Report
The MAUD Report was a secret 1941 British scientific assessment that concluded an atomic bomb was feasible and helped spur the U.S. Manhattan Project.
-
B.
MAUD Committee
The MAUD Committee was a British scientific advisory group during World War II that conducted pioneering research into the feasibility of an atomic bomb, helping to spur the later development of the Manhattan Project.
-
C.
Manhattan Project
The Manhattan Project was the secret U.S.-led World War II research and development program that produced the first nuclear weapons.
-
D.
Russell–Einstein Manifesto
The Russell–Einstein Manifesto is a 1955 public statement by leading scientists warning of the dangers of nuclear weapons and urging world leaders to seek peaceful conflict resolution.
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E.
S-1 Uranium Committee
The S-1 Uranium Committee was a U.S. government scientific advisory group that coordinated early research into nuclear fission and atomic weapons, laying the groundwork for what became the Manhattan Project.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Frisch–Peierls memorandum Target entity description: The Frisch–Peierls memorandum was a pivotal 1940 document by physicists Otto Frisch and Rudolf Peierls that first outlined the feasibility of a small, practical uranium-based atomic bomb, helping to catalyze British and later Allied nuclear weapons research.
-
A.
MAUD Report
The MAUD Report was a secret 1941 British scientific assessment that concluded an atomic bomb was feasible and helped spur the U.S. Manhattan Project.
-
B.
MAUD Committee
The MAUD Committee was a British scientific advisory group during World War II that conducted pioneering research into the feasibility of an atomic bomb, helping to spur the later development of the Manhattan Project.
-
C.
Manhattan Project
The Manhattan Project was the secret U.S.-led World War II research and development program that produced the first nuclear weapons.
-
D.
Russell–Einstein Manifesto
The Russell–Einstein Manifesto is a 1955 public statement by leading scientists warning of the dangers of nuclear weapons and urging world leaders to seek peaceful conflict resolution.
-
E.
S-1 Uranium Committee
The S-1 Uranium Committee was a U.S. government scientific advisory group that coordinated early research into nuclear fission and atomic weapons, laying the groundwork for what became the Manhattan Project.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historical document
ⓘ
nuclear weapons proposal ⓘ scientific memorandum ⓘ |
| associatedPerson |
Henry Tizard
ⓘ
James Chadwick ⓘ Mark Oliphant ⓘ |
| associatedWith | University of Birmingham ⓘ |
| author |
Otto Frisch
ⓘ
Rudolf Peierls ⓘ |
| catalyzed | systematic British research into nuclear weapons ⓘ |
| commissionedBy |
Rudolf Peierls (self-initiated with Otto Frisch)
ⓘ
linked to:
Rudolf Peierls
|
| contrastedWith | earlier estimates requiring tons of uranium ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| dateWritten | March 1940 ⓘ |
| documentFormat | written report ⓘ |
| era | early nuclear age ⓘ |
| geopoliticalImpact | contributed to Allied decision to pursue atomic weapons ⓘ |
| historicalSignificance |
first detailed technical argument that a small, practical uranium bomb was feasible
ⓘ
key early step in Allied nuclear weapons development ⓘ |
| influenced |
British atomic bomb program
ⓘ
MAUD Committee ⓘ Manhattan Project ⓘ |
| language | English ⓘ |
| mainSubject |
atomic bomb design
ⓘ
nuclear fission ⓘ nuclear weapons feasibility ⓘ uranium-235 ⓘ |
| proposedBombMass | on the order of kilograms of uranium-235 ⓘ |
| proposedIsotope | uranium-235 ⓘ |
| proposedWeaponType | uranium-based atomic bomb ⓘ |
| purpose |
to assess feasibility of an atomic bomb
ⓘ
to inform the British government about nuclear weapons potential ⓘ |
| relatedEvent | World War II ⓘ |
| relatedField |
nuclear physics
ⓘ
weapons research ⓘ |
| securityStatusAtTime | classified ⓘ |
| statedProperty |
a compact fission bomb could produce extremely large explosive yields
ⓘ
a small critical mass of uranium-235 could sustain a fast neutron chain reaction ⓘ a uranium-235 bomb could be delivered by aircraft ⓘ industrial-scale isotope separation would be required ⓘ no known defense would be effective against such a bomb ⓘ |
| submittedTo |
British government scientific authorities
ⓘ
Henry Tizard ⓘ |
| typeOfAnalysis |
assessment of production requirements
ⓘ
estimate of explosive yield ⓘ theoretical calculation of critical mass ⓘ |
| year | 1940 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Frisch–Peierls memorandum Description of subject: The Frisch–Peierls memorandum was a pivotal 1940 document by physicists Otto Frisch and Rudolf Peierls that first outlined the feasibility of a small, practical uranium-based atomic bomb, helping to catalyze British and later Allied nuclear weapons research.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.