Dr Tom Crawford @tomrocksmaths
Mathematician @UniofOxford AND @Cambridge_Uni, @OxfordConted, @Numberphile, @YouTube 'Creator on the Rise', Naked Mathematician, @TedX Speaker, @c4countdown tomrocksmaths.com Oxford, UK Joined January 2017-
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Come learn maths with me! I'll once again be running the Intermediate Calculus course @OxLifelongLearn starting in just over 2 weeks. Weekly lectures, 10 live classes (Tues 7:30 - 8:30 pm) and all the problem sets your heart could desire. Full info here: lifelong-learning.ox.ac.uk/courses/calcul…
Come on Maths Fans! Numbers are getting destroyed by Words here with another round going to @susie_dent and her explanation of the origin of OMG. I'll also up my game, starting immediately with Round 8 coming later this week. Catch up on them all here: youtube.com/playlist?list=…
Had SO much fun filming the latest episode of Maths Speed Dating with “More Tiger Lily History” this evening in the ever-glorious surroundings of the Old Library. We also filmed a couple of short videos looking at the Maths of Alice in Wonderland - base 18 and topology anyone?
That's it! All 326 essays in the 2025 TRM Essay Competition showcase have now been released. And what a showcase it's been. Look out for the winner's shortlist next week just in time for everyone heading back to start the new academic year. I can't wait :) tomrocksmaths.com/2025/09/02/trm…
Some candid and candon't shots from my recent visit to the 1729 Maths School to talk to the most amazing group of year 5 students I've ever had the pleasure to meet. I'm very jealous you all have the chance to learn at a specialist maths school - child Tom would have loved it!
NEW VIDEO: @PoShenLoh is back to take on the randomness of Maths Speed Dating. Discover his approach to studying at university, his reasons for treating the world as a giant graph, and why his current playlist is country. Premieres today at 7pm (GMT+1). youtube.com/watch?v=SKRWXK…
Mathematical typography, the most powerful Pokémon attack, the inner workings of a telescope, unstable periodic orbits, and the effect of weather on fuel consumption during a flight. It is of course another round in the 2025 TRM Essay Competition Showcase! tomrocksmaths.com/2025/08/30/trm…
LOOK WHO I MET!! So excited to finally meet the brilliant @onlinekyne in person. I’ve known Kyne since 2020 but we’ve somehow never been in the same place until now. Thanks TMiP for bringing us together <3
How many UNESCO world heritage sites can you fit in one city? We managed to visit 4 during a day trip around Kathmandu, which means another 3 left for next time. But do you know which country has the most world heritage sites at 61 out of a total of 1223?
Not many essays left in the 2025 showcase, but not to worry as Group 15 covers the usual fantastic range of topics. From 4-dimensional numbers, to emotive colouring in films, via the vortices generated by F1 cars - learn something new at the link below :) tomrocksmaths.com/2025/08/26/trm…
Everest Base Camp Trek completed!! 9 days in total, covering over 150km and ascending more than 9000m. Video diary - with fun maths facts - to follow in the next few weeks. Hopefully you’ll all enjoy it as much as I did :)
Day 7 and the peak of Kala Patthar at 5600m. By far the toughest of the lot, but those views of Everest at sunrise were worth every step. The nearest mountain (which looks taller due to perspective) is Lhotse - the 4th highest peak in the world at 8516m. Mind-blowing.
Day 6 - Everest Base Camp. We made it! 5364m altitude and just the 3485m to go the peak… which I will not be doing due to approximately a 1% chance of death. It used to be as high as 1 in 25 in the past, but 1 in 100 is still a risk a mathematician is not willing to take.
Day 5 - Cho La Pass. One of 3 passes on the full Everest route connecting Thagnak (4700m) and Dzongla (4830m). The pass reaches an altitude of 5420m where relative oxygen levels (due to reduced air pressure) are half the value at sea level at only 10.5%. Tough to say the least…
Day 4 and the first peak conquered - Gokyo Ri at 5357m. The afternoon was spent traversing the Ngozumpa Glacier, which at 36 kilometres is the longest in the Himalayas. The longest glacier in the world (outside of the polar regions) is the Fedchenko Glacier in Tajikistan at 77km.
Day 3 from Dole (4100m) to Gokyo (4900m). Yaks as far as the eye can see along with some beautiful lakes. This will be the highest altitude I’ve ever slept at - wish me luck…
Mountains galore on day 2 - including an excellent view of Everest. 12km of walking and another 700m in altitude gained, taking us to 4100m for the overnight in Dole. The route included a fair amount of downhill so we actually ascended 1000m. Just the several thousand to go…
Views down the valley from the Hilary Bridge. Day 1 of the trek covers 22km from Surke to Namche, and an altitude increase from 2280m to 3470m. That’s just over 54m of altitude gain per km. Doesn’t sound too bad until you realise the Oxygen level is also decreasing… hard work!
Another blockbuster set of 20 essays to enjoy in group 14 of the TRM Essay Showcase. This one’s for the gamers with essays on Settlers of Catan, Pokémon, football and darts. Enjoy them all at the link below :) tomrocksmaths.com/2025/08/11/trm…
Let the trekking begin! In the Himalayas for 2 weeks to - hopefully - make it up to Everest Base Camp. May the Gods of probability look favourably upon us + - x /

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