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How many holes are there in a drinking straw?

Tim Harford talks to Jordan Ellenberg, professor of mathematics at the University of Wisconsin at Madison, about the pandemic, geometry and drinking straws.

(multi-coloured straws/Getty images)

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9 minutes

Last on

Mon 20 Sep 2021 09:50GMT
91福利社 World Service

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  • Sun 19 Sep 2021 13:50GMT
    91福利社 World Service
  • Sun 19 Sep 2021 21:50GMT
    91福利社 World Service except East Asia & South Asia
  • Mon 20 Sep 2021 02:50GMT
    91福利社 World Service South Asia & East Asia only
  • Mon 20 Sep 2021 09:50GMT
    91福利社 World Service

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