Oxford Maths Admissions Interview Question with Blackpenredpen

Steve from blackpenredpen answers a real Oxford maths admissions interview question set by University of Oxford Mathematician Dr Tom Crawford. This exact question was used by Tom in the 2018 Oxford maths admissions interviews. The question looks at surfaces and volumes of revolution via a famous shape known as Gabriel’s Horn, which has a volume of pi but an infinite surface area.

[…] This is part 2 of the interview – you can find part 1 on Gabriel’s Horn here. […]

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