Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:co-namesakeOf |
gptkb:Hall–Petch_relationship
|
| gptkbp:field |
materials science
physics |
| https://www.w3.org/2000/01/rdf-schema#label |
John Petch
|
| gptkbp:knownFor |
Petch effect
|
| gptkbp:nationality |
British
|
| gptkbp:occupation |
gptkb:physicist
|
| gptkbp:bfsParent |
gptkb:Grand_Opera_House_York
gptkb:Grand_Opera_House,_York |
| gptkbp:bfsLayer |
7
|