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Ron Graham had considerable physical as well as mental dexterity, and was comfortably able to juggle seven balls at one time. Photograph: Peter Vidor
3 August, 2020 - The Guardian
Ron Graham obituary | Science | The Guardian
Prolific mathematician who came up with the inordinately large ‘Graham’s Number’ and was committed to making his subject fun
20 December 2021
28 September 2021
10 September 2021