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What Did John Snow Know About Cholera? – with James Grime

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The Royal Institution

Physician John Snow famously figured out the cause of a cholera outbreak using maths and statistics, and thereby helped to disprove the miasma theory of disease – that people get ill from ‘bad air’.
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James Grime is a mathematician with a personal passion for maths communication and the promotion of mathematics in schools and to the general public. He can be mostly found doing exactly that, either touring the world giving public talks, or on YouTube.

James has a PhD in mathematics and his academic interests include group theory (the mathematics of symmetry) and combinatorics (the mathematics of networks and solving problems with diagrams and pictures). James also has a keen interest in cryptography (the mathematics of codes and secret messages), probability (games, gambling and predicting the future) and number theory (the properties of numbers).

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40 thoughts on “What Did John Snow Know About Cholera? – with James Grime”

  1. Earlier in March this year before the world locked down, we teamed up with our friend @singingbanana to find out what John Snow knows. We then waited for a good time to release it and well… we realised we might be waiting for a long, long time yet. So here's our final short film of the year.

    And now to mix metaphors – Victorian physician and medical pioneer John Snow: what did he know? Did he know things?? Let's find out.

  4. Came here just to comment that it should be spelt "Jon." Realized quickly enough that they were talking about a different character. But couldn't leave without commenting. RI, your click-baiting title worked. Sure, I noticed the gratuitous "You know nothing, John Snow" in the video. Good game.

  9. Sounds like today's corona-politics – they are as effective as removing the handle: it is just to late, infections rates are getting down in advance.

  26. Throughout human history, it took extraordinary people, doing extraordinary work, to better the humanity. Invariably, the uneducated mass of commoners and self-serving narcissistic psychopaths would distrust and vilify them. As of recently, I decided to call that treatment the "Trump effect".

  27. I don't know when this was filmed, but it's strange to see that people in London aren't wearing masks in the street… The video is great though.

  31. I teach GIS and stats at university level, and devote a lecture to John Snow–a true hero. If you run a weighted centre of mass-type average position over time, the pump is never more than 10-15 metres away from that point. (there's an animation on YT somewhere)

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