
Dr Tom Crawford
@tomrocksmaths
Mathematician @UniofOxford AND @Cambridge_Uni, @OxfordConted, @Numberphile, @YouTube 'Creator on the Rise', Naked Mathematician, @TedX Speaker, @c4countdown
ID: 819675977701879808
http://tomrocksmaths.com 12-01-2017 22:42:36
4,4K Tweet
13,13K Followers
4,4K Following

NEW VIDEO Numberphile: Infinite keys at Hilbert's Hotel If you have infinite keys mixed up in a bucket, and you remove them one by one to hang on the next available room key hook - what is the probability at least one of the rooms gets the correct key? youtube.com/watch?v=uezOrc…

Some perfect mathematical reading for you all this Sunday in the form of the 2nd article in the abstraction series from TRM intern Joe Leach. Learn how graph theory is used to turn complex real-world problems into simple drawings - with simple solutions. tomrocksmaths.com/2025/05/17/abs…


You all seemed to enjoy this last time - so what do you think I’m teaching today? This is a 2nd year course University of Oxford.




If you enjoyed my video on infinite keys Numberphile be sure to check out the extra footage on Numberphile 2 where I explain how to work out the probability of getting exactly m keys correct. Fair warning, this is not for the faint hearted... youtube.com/watch?v=txoJDJ…




The results are in... Congratulations to "29" for an exceedingly narrow victory over "to lick something into shape"! Words aka Susie Dent need your votes in round 2 - coming Thursday. And if you haven't seen it yet, watch the battle from round 1 here: youtube.com/shorts/jxam_ui…




Numbers vs. Words Round 2: "Binfluencer" vs. "3435" Susie Dent puts forward an excellent example of a portmanteau, whilst Dr Tom Crawford opts for the only known 'Munchausen number'. Which is your favourite? Cast your vote at the link in the comments. youtube.com/shorts/iTDYm6T…



CS50 is back in the United Kingdom! Join us in London on Friday, June 20, 2025, for a @CS50 Hackathon with the Oxford Continuing Education and Meta, with Professor David J. Malan from Harvard University, Professor Daniel Wilson from Oxford, Professor Tom Crawford from Oxford (and Cambridge University and


