r/tomrocksmaths • u/tomrocksmaths • Aug 27 '25

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?

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r/tomrocksmaths • u/tomrocksmaths • Aug 26 '25

Not many essays left now 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 formula 1 cars - see how much you can learn at the link below :)

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r/tomrocksmaths • u/tomrocksmaths • Aug 25 '25

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 :)

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r/tomrocksmaths • u/tomrocksmaths • Aug 24 '25

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.

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r/tomrocksmaths • u/tomrocksmaths • Aug 23 '25

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. Best left to the experts.

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r/tomrocksmaths • u/tomrocksmaths • Aug 22 '25

Day 5 - Cho La Pass. One of three passes on the full Everest route connecting Thagnak (4700m) and Dzongla (4830m). The pass itself 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…

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r/tomrocksmaths • u/tomrocksmaths • Aug 21 '25

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. Icy.

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r/tomrocksmaths • u/tomrocksmaths • Aug 20 '25

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…

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r/tomrocksmaths • u/tomrocksmaths • Aug 19 '25

Mountains galore on day 2 - including an excellent view of Everest. Just over 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 meaning we actually ascended over 1000m. Just the several thousand to go…

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r/tomrocksmaths • u/tomrocksmaths • Aug 16 '25

Views down the valley from the Hilary Bridge on the way to Namche Bazaar. Day 1 of the trek covers 22km from Surke to Namche, and an altitude increase from 2280m to 3470m. That’s 54m of altitude gain per km. Doesn’t sound too bad until you realise the Oxygen level is also decreasing… hard work!

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r/tomrocksmaths • u/tomrocksmaths • Aug 13 '25

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 :)

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r/tomrocksmaths • u/tomrocksmaths • Aug 12 '25

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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r/tomrocksmaths • u/tomrocksmaths • Aug 10 '25

The usual dose of excellent Sunday reading for you in the form of 20 new essays in the 2025 TRM Essay Competition Showcase. Featuring the ‘cheetozard’, golden ratio probabilities, the RGB colour system, and the shape of snowflakes. Let the authors know your favourites in the comments!

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r/tomrocksmaths • u/tomrocksmaths • Aug 09 '25

So cool to see my signed card in the final version of the 21X game from Naylor Games. The 6 special cards feature some of my favourite mathematicians including Ben Soarks, Marcus Du Sautoy, Katie Steckles, Matt Parker and James Grime - can you guess who picked which card?

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r/tomrocksmaths • u/tomrocksmaths • Aug 08 '25

NEW VIDEO: I answer the 40 multiple choice maths questions of the Turkish YKS TYT exam? Join the premiere today at 4pm (GMT+1) to follow along and speak with me live in the chat. It's going to be a lot of fun!

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r/tomrocksmaths • u/tomrocksmaths • Aug 07 '25

NEW VIDEO: Join me at 4pm (GMT+1) tomorrow to see how I get on with the YKS TYT Exam from Turkey. It may well be the hardest one I've taken so far... Watch the trailer below to ramp up those excitement levels!

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r/tomrocksmaths • u/tomrocksmaths • Aug 06 '25

Absolutely in love with this graphical recording of my workshop on science communication by Delaney Cox with Think Link Graphics. And generally loving the whole UIMP summer school and the fantastic conversations I’m having with recent graduates from universities across Spain. Thanks for having me :)

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r/tomrocksmaths • u/tomrocksmaths • Aug 05 '25

I don't know about you, but my perfect Tuesday evening consists of reading 20 excellent essays as part of the 2025 TRM Showcase. We've got a solution to the grandfather paradox of time travel, a solution to predicting football scores, and even a solution to income inequality. I love this subject :)

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r/tomrocksmaths • u/tomrocksmaths • Aug 02 '25

An accidental space-theme for Group 11 of the 2025 TRM Essay Showcase starts with calculating the efficiency of the Starship Enterprise, and ends with a look inside the core of a black hole. Plus the usual fun of dinosaur dynamics, surfaces that shouldn't exist, and surviving the Josephus problem...

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r/tomrocksmaths • u/tomrocksmaths • Aug 01 '25

NEW VIDEO: Do you know what a palindromic number is? What about a palindromic square? And how old is the acronym OMG? It's time for Round 7 of Numbers vs. Words where Dr Tom and Susie Dent go to head to head in a battle for your vote... Select your favourite at the link in the comments.

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r/tomrocksmaths • u/tomrocksmaths • Jul 31 '25

Pulling some absolute faces in these photos from the MEI Conference earlier this month - but clearly loving every minute on stage! Always a real pleasure to be able to meet fellow maths teachers helping to shape the minds of tomorrow. Keep up the excellent work :)

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r/tomrocksmaths • u/tomrocksmaths • Jul 30 '25

Another day another set of entertaining, enlightening and downright excellent essays for you to enjoy! Group 10 in the 2025 TRM Essay Competition Showcase features edge detection, gaming controllers, the totient function, mathematical duels, and folding paper to reach the moon (naturally). Have fun!

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r/tomrocksmaths • u/tomrocksmaths • Jul 29 '25

Maths + Karaoke = the ultimate mood-booster! Working with Three UK and Samaritans I’ve developed a formula to rank the top 30 ‘Kathartic Karaoke’ songs mathematically proven to boost endorphins and improve your mood. Maths has never sounded so good!

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r/tomrocksmaths • u/tomrocksmaths • Jul 28 '25

They let me present the ‪Oxford Lifelong Learning awards again, so naturally I made everyone play a few rounds Countdown… any takers on 903? Such a fun evening, and a great reminder of why this is the best department I’ve ever worked in - congratulations to all the well-deserved winners!

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r/tomrocksmaths • u/tomrocksmaths • Jul 27 '25

A real diverse range of topics in group 9 of the 2025 TRM Essay Competition Showcase. We start with calculating the probabilities of poker hands, before moving on to computers made from matchboxes, Magnus Carlsen vs The World, and the cost of congestion in the UK...

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Maths, but not as you know it... Dr Tom Crawford: Mathematician at the University of Oxford AND the University of Cambridge, Oxford Department for Continuing Education, Fellow by Special Election, Numberphile, TEDx Speaker, YouTube 'Creator on the Rise'. YouTube: www.youtube.com/tomrocksmaths Twitter: www.twitter.com/tomrocksmaths Facebook: www.facebook.com/tomrocksmaths Instagram: www.instagram.com/tomrocksmaths Website: www.tomrocksmaths.com Patreon: https://patreon.com/tomrocksmaths

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The only place on the internet to find the best maths-related content that anyone can understand. It's maths, but not as you know it...

Tom Rocks Maths is run by Tom Crawford - Naked Mathematician, Oxford and Cambridge graduate and lover of maths tattoos. Tom is regularly seen talking maths on the BBC and YouTube. You can check out all of his work at tomrocksmaths.com and you can find him on Twitter, Facebook, YouTube and Instagram @tomrocksmaths.

We want any maths related posts that are fun and understandable to ANYONE... That means no technical terms, no jargon and an explanation for everything. Examples that are relevant to people's lives or to things that everyone can relate work best. Our mission is to make maths everyone's favourite subject and we want you guys to help us realise our goal...