Meitner–Hahn experiments
E159821
The Meitner–Hahn experiments were pioneering nuclear physics investigations in the 1930s that led to the discovery and explanation of nuclear fission in uranium.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T1388465 — 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.
Target entity: Meitner–Hahn experiments Context triple: [Lise Meitner, knownFor, Meitner–Hahn experiments]
-
A.
Cockcroft–Walton experiment
The Cockcroft–Walton experiment was a pioneering 1932 nuclear physics experiment that achieved the first artificial disintegration of atomic nuclei using accelerated protons, confirming Einstein’s mass–energy equivalence.
-
B.
Frisch–Peierls memorandum
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.
-
C.
Chicago Pile-2
Chicago Pile-2 was an early research nuclear reactor built at the Argonne site to continue and expand experimental work following the first controlled chain reaction achieved by Chicago Pile-1.
-
D.
Chicago Pile-1
Chicago Pile-1 was the world’s first artificial nuclear reactor, achieving the first controlled, self-sustaining nuclear chain reaction in 1942 under the leadership of Enrico Fermi.
-
E.
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.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Meitner–Hahn experiments Target entity description: The Meitner–Hahn experiments were pioneering nuclear physics investigations in the 1930s that led to the discovery and explanation of nuclear fission in uranium.
-
A.
Cockcroft–Walton experiment
The Cockcroft–Walton experiment was a pioneering 1932 nuclear physics experiment that achieved the first artificial disintegration of atomic nuclei using accelerated protons, confirming Einstein’s mass–energy equivalence.
-
B.
Frisch–Peierls memorandum
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.
-
C.
Chicago Pile-2
Chicago Pile-2 was an early research nuclear reactor built at the Argonne site to continue and expand experimental work following the first controlled chain reaction achieved by Chicago Pile-1.
-
D.
Chicago Pile-1
Chicago Pile-1 was the world’s first artificial nuclear reactor, achieving the first controlled, self-sustaining nuclear chain reaction in 1942 under the leadership of Enrico Fermi.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear physics experiment
ⓘ
physics experiment ⓘ scientific experiment ⓘ |
| aim |
study neutron-induced radioactivity in heavy elements
ⓘ
understand transuranium element formation ⓘ |
| associatedConcept |
E = mc² in nuclear processes
ⓘ
fission fragments ⓘ mass defect ⓘ |
| concluded | 1938 ⓘ |
| contributor | Fritz Strassmann ⓘ |
| country | Germany ⓘ |
| discoverer |
Lise Meitner
ⓘ
Otto Hahn ⓘ |
| field |
nuclear physics
ⓘ
radioactivity ⓘ |
| hasPart |
chemical separation of reaction products
ⓘ
identification of barium among uranium reaction products ⓘ neutron irradiation of uranium ⓘ |
| inception | 1934 ⓘ |
| influencedBy | Enrico Fermi’s neutron irradiation work ⓘ |
| keyFinding |
large energy release accompanies uranium fission
ⓘ
uranium can split into two roughly equal-mass nuclei ⓘ |
| ledTo |
development of nuclear reactor concepts
ⓘ
explanation of nuclear fission ⓘ foundations of nuclear weapons development ⓘ |
| location |
Berlin
ⓘ
Kaiser Wilhelm Institute for Chemistry ⓘ |
| mainSubject |
neutron-induced reactions
ⓘ
nuclear fission ⓘ uranium ⓘ |
| notableDate | December 1938 ⓘ |
| partOf |
history of atomic energy
ⓘ
history of nuclear physics ⓘ |
| preceded | first controlled nuclear chain reaction ⓘ |
| publication |
Meitner–Hahn experiments
self-linksurface differs
ⓘ
surface form:
Die Deutung der bei der Bestrahlung des Urans mittels Neutronen entstehenden Aktivitäten
Meitner–Hahn experiments self-linksurface differs ⓘ
surface form:
Über den Nachweis und das Verhalten der bei der Bestrahlung des Urans mittels Neutronen entstehenden Erdalkalimetalle
|
| recognizedAs | pioneering work in nuclear fission ⓘ |
| result |
discovery of nuclear fission of uranium
ⓘ
evidence that uranium nuclei can split into lighter elements ⓘ observation of barium as a fission product ⓘ |
| theoreticalInterpretationBy |
Lise Meitner
ⓘ
Otto Frisch ⓘ
surface form:
Otto Robert Frisch
|
| timePeriod | 1930s ⓘ |
| used |
radiochemical analysis
ⓘ
slow neutrons ⓘ uranium targets ⓘ |
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.
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.
Subject: Meitner–Hahn experiments Description of subject: The Meitner–Hahn experiments were pioneering nuclear physics investigations in the 1930s that led to the discovery and explanation of nuclear fission in uranium.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.