The Curious Cases of Rutherford and Fry

Rutherford is still jealous of my clearly superior tash.

Rutherford is still jealous of my clearly superior tash.

If you haven’t yet got the memo, The Curious Cases of Rutherford and Fry is my long running Podcast/BBC Radio Four series with geneticist Adam Rutherford and long suffering producer Michelle Martin.

How can I describe it?

Well. Our listeners send us in questions – like “what is the tiniest dinosaur” or “why is déjà vu a thing?” and “Why do different musical instruments sound different when they’re playing the same note?” and Adam and I endeavour to answer them using the power of science.

But there’s a bit more to it than that... It’s kind of like a podcast version of those annoyingly insightful questions that kids ask their parents, except with answers that often end up being surprisingly deep, and always intriguing.

Our recording days are ray of delight in my diary and it’s something I really hope you’ll like too.

Back catalogue of episodes here:

Hello World - the talk

I’m generally not a fan of having my talks filmed, but made an exception for this recent outing at the Royal Institution. It’s all about how we’re increasingly handing over our decision making to machines and what that means for our future.

I know that doesn’t sound like the sexiest topic. Believe me, I know. But if I had a pound for every person who’d said they thought my talk was going to be boring and were surprised when they discovered they loved it, I’d have enough money to hire a marketing expert to help me come up with better titles.

This one is very much aimed at a non-specialist audience, so it’s heavy on the story telling. Give it a watch if you have a half hour free.

The Maths of Life

The decision to synchronise haircuts for this photo was entirely coincidental.

The decision to synchronise haircuts for this photo was entirely coincidental.

New year, new job…

From January 2019, I’ll be popping in to chat with Lauren Laverne on her BBC Radio 6 Breakfast show at 930am on Tuesday mornings. The slot is called “The Maths of Life”, but it’s basically me telling Lauren about anything amusing and intriguing from the world of science and maths that I’ve been thinking about that week.

I’m off on maternity leave for until July 2019, so the amazing Prof. Sophie Scott will be standing in for me while I’m off.


The Bailie Gifford

I really need to learn how to do that dainty feet pose thing.

I really need to learn how to do that dainty feet pose thing.

Hello World was a finalist for the Bailie Gifford Prize (previously known as the Samuel Johnson). It’s the big one – arguably one of the most prestigious book prizes there is. Not for just for science books. But for all non-fiction in the English language. Only two British authors made the shortlist, only two science books and <ahem> only one girl.

YES. I didn’t win, but I’m still enormously proud.

You can read a little interview I did after being shortlisted here:

And the BBC news coverage of the event here:

Magic Numbers: Hannah Fry's Mysterious World of Maths

Chilling out in Maths Telly Tubby land. AKA Jupiter gardens in Scotland.

Chilling out in Maths Telly Tubby land. AKA Jupiter gardens in Scotland.

MATHS! On the telly!

A rare and delicious treat.

In this three parter, we explore the mystery of maths. Is it invented or discovered? Just how far does the universe bend to the will of mathematical equations? Are they the underlying truth or merely a best guess for what’s out there?

It all gets very deep. So for balance, my director sees fit to chuck me off a mountain at least once an hour. Excellent viewing for fans of maths and scared mathematicians alike.

The Zeeman Medal

I won a medal! The London Mathematical Society and the Institute of Mathematics and its Applications awarded me with the prestigious Zeeman Medal. It’s a national award designed to recognise and acknowledge the contributions of mathematicians involved in engaging with the public in mathematics in the UK. They only give it out every two years & previous winners include all my heroes – Marcus De Sautoy, Ian Stewart and the inimitable Rob Eastaway.

Here’s the citation for the medal. 

I may or may not have printed this off and stuck it on my wall.

The Royal Society Book Prize

Hello World was shortlisted by the Royal Society for their annual book prize. You might have heard of them.. They’re kind of a big deal. And this is the only major international award designed to celebrate popular science books written for a non-specialist audience.

Lots of amazing books on the shortlist – including the eventual winner,  Sarah Jayne Blackmore’s book Inventing Ourselves about the teenage brain.

Contagion! The BBC Four Pandemic


Do you know what killed the most people in the last 200 years? It wasn’t terrorism, or a natural disaster, or even World War II.

It was flu.

A hundred years ago the Spanish flu killed up to 100 million people and since then three other pandemics have swept through the globe. To try and stop that from happening again, we’ve been running a huge citizen science experiment, bringing together BBC4, Cambridge University and the London School of Hygiene and Tropical Medicine. In it we’ve been trying to get as many people as possible to download a smartphone app that will help scientists to predict the spread of disease.

There’s a difference between seasonal flu - which we can vaccinate against and prepare for – and pandemic flu. A pandemic happens when a flu virus jumps from animals into humans (like bird flu or swine flu). No one will have immunity to the new strain so it quickly spreads around the world.

It’s a case of when, not if, the next flu pandemic will hit. And when it comes it will be serious. The UK government predicts that 50% of people could be affected, with up to 750,000 fatalities.

So what can we do about it? Well. We can’t stop a pandemic from happening. But we can make sure we’re as prepared as possible. And that’s where maths – and the citizen science experiment - comes in.

We don't get a trial run. So, we need to be able to simulate how the virus will spread & try out all the life changing decisions beforehand - should we close the schools? How many antivirals do we need? Should the airports shut down? Our experiment, by collecting data from volunteers,  looks at what would happen in a virtual national outbreak.

This experiment, aims to create a new gold standard for epidemiologists in the U.K. with the genuine potential to save lives when the time comes.

Read more about the project on the BBC website and keep an eye out here for news about the dataset itself and academic work based on it.

The BBC programme that accompanies the experiment, featuring me and the totally brilliant Dr Javid Abdelmoneim (he's a proper doctor, not a fancy academic one like me) will be aired on BBC4 in the new year. 

The Joy of Winning

Every maths documentary needs their own oversized deckchair

Every maths documentary needs their own oversized deckchair

Am I allowed to have a favourite TV project? Because I do. It’s this one.

Easily the best thing I’ve ever done.

Hot on the heels of The Joy of Data, I got to do another documentary with Wingspan and director extraordinaire Cat Gale, titled The Joy of Winning. The subject?  Glorious Game Theory. We dig into its rich history, see how it has shaped the path of politics, and explore how it can help you win in your own life. Oh, and we'll spend a lot of time in arcades along the way.

I couldn’t possibly condone watching a ripped off version on youtube. Definitely, definitely don’t do that.

Tomorrow’s World

Tomorrow's World.jpg

For one night only, Tomorrow’s world made a comeback on our screens in November 2018.

Alongside much-loved presenters Maggie Philbin and Howard Stableford (who, by the way, are even more brilliant in the flesh) we took a look back at some highlights from the archive, discovered the latest in British invention, tested some cutting-edge technologies live in the studio – including a very naughty robot who refused to speak to me - and took a look forward to the science and technology that will shape our future.

When, at the tender age of 18, I decided to go off to university to study Mathematics with Theoretical Physics, this isn't exactly how I imagined things would turn out.

When, at the tender age of 18, I decided to go off to university to study Mathematics with Theoretical Physics, this isn't exactly how I imagined things would turn out.

 Oh, and just because it's one of my favourite things that has ever happened, here's a picture from a promo shoot I did with Brian Cox in 2017 for the original Tomorrow's world initiative.  You can read the full interview here.


Britain's Greatest Invention

This hug from Len Goodman is probably highlight of my life so far.

This hug from Len Goodman is probably highlight of my life so far.

Something a little different for my first project back after having my daughter. And what a wonderful project to return to. In partnership with the science museum, the BBC staged a huge 90 minute LIVE show, in which seven celebrities championed seven different inventions, before the public had a chance to vote for Britain's greatest. 

Find out more on the Thoroughly Modern Media website. 

The Joy of Data

Make it rain, baby.

Make it rain, baby.

This film was my first collaboration with Wingspan productions and their unbelievably talented director Cat Gale. In their write up on the documentary, the  BBC described it as a high tech romp into the mind-expanding world of data. Since it's not often you get to use the word 'romp' to describe maths & data I thought it would be a bit of a shame not to include it here too. 

With a good dollop of warmth and wit (even if we do say so ourselves) this film digs into the story of the engineers of the data age, and takes a look the people most of us have never heard of despite the fact they brought about a technological and philosophical revolution.

Oh, and not to brag, but it got a five star review in the times.

City in the Sky

Rare photograph of Dallas' enormous hands. (That's not an iPhone. It's a widescreen television).

Rare photograph of Dallas' enormous hands. (That's not an iPhone. It's a widescreen television).

For the past year or so Dallas Campbell and I have been lucky enough to go on a series of amazing adventures for BBC2 exploring the modern aviation industry.

At any point in time there are a million people in the air - a city's worth of citizens in the sky. And the similarities with the city don't end there. These people need feeding, fuel, medical care and emergency response teams - just as we do on the ground. The logistics that go into the design of these systems require a surprising amount of mathematical optimisation, clever science and engineering. 

As part of filming I got to go to Yakustk in Siberia to find out how they keep things running at the coldest airport on Earth. Dallas visited Bhutan to understand the science of landing. And we both went to Dubai to witness the Jetmen and their remarkable solo flying machines.

Find out more on the BBC website. 


Trainspotting Live

Trainspotting Live 2.jpg

No, this wasn’t a documentary about Edinburgh’s underground drug scene. And at no point did I disappear down a toilet or lob a pint glass over my shoulder.

Instead, this series – my first foray into live telly – really was about watching trains. Really.

Hosted by Peter Snow, Dick Strawbridge and me over three nights, it was perhaps the most gloriously bonkers project I will ever be involved in.

Plus, we made the front page of the Sun and the Telegraph, so. Y’know. Sometimes the maddest ideas are the best ones.

BBC Radio 1 - Music By Numbers

We don't have a photo. But whatevs yeah - it's radio.

We don't have a photo. But whatevs yeah - it's radio.

Have you ever wondered how they compile the charts? Or what one YouTube view is worth? Or why Coldplay would play at the SuperBowl for free?

Yes?? Good. Then you'll like the new Radio One and Radio One extra show with me & Clara Amfo: Music by Numbers. 

The programme, produced by the wonderful team at Audio Always, is a series of 10 one hour specials over the course of the year. Each takes a particular artist and digs into the numbers that made them. 

Maths and Stats on Radio one eh? Welcome to the future. I like it here. 

Horizon: How to find love online

I actually wanted a pint of lager.

I actually wanted a pint of lager.

I might have written a book on Maths and Love, but the theories can only take you so far. To see how the algorithms play out in the real world, I teamed up with doctor, broadcaster and singleton Xand van Tulleken to make this love-themed episode of Horizon for BBC2. 

In the programme we try and seek answers to the questions that have puzzled a generation of internet singles: How important is your profile picture? What kind of dating site is best to use? And how can a computer tell your dream date from a dud?

As part of the programme, CASA MRes student Thomas Russell built a Horizon themed dating website and matching algorithm that was open for members of the public to join. As to whether that led to any romantic connections? You’ll have to watch the programme to find out.

The show also made it onto Gogglebox on the 29th April 2016.

Computing Britain

I learnt to code on one of these bad boys.

I learnt to code on one of these bad boys.


My ten part BBC Radio four series Computing Britain is now available as a podcast here

Now I know what you're thinking, a radio documentary on the history of computers sounds like a pretty dry way to spend two and a half hours. But actually, this series offers a surprisingly warm and nostalgic look at the plucky British spirit and our role in the birth of the modern computer age. (Honest).

Throughout the last 75 years, Brits have been at the forefront of  a surprising number of innovations: electronic memory, the office & home computer and the gaming industry to name but a few. Yes, they then lacked funding at the crucial moments and the Americans swept in and did everything better, but that's hardly the point. 

The Telegraph called our series "Unexpectedly delightful" which might be the greatest neg ever, but is a reason to download the podcast and give it a go if ever I heard one.

The producers (by which I mean, the people who deserve all of the credit) were Michelle Martin, Alex Mansfield and Deborah Coen.   


Calculating Ada: The Countess of Computing

Just chilling with a Jacquard Loom, yo.

Just chilling with a Jacquard Loom, yo.

You might well have heard of Ada Lovelace - the 19th century amateur mathematician and prophet of the computer age. She's recently become a bit of symbol for achievement in science - and never more so than now in the 200th year since her birth. 

But you may not have realised quite how captivating her story is. 

This film for BBC4, first shown on 17th September at 9pm, explores how Ada’s unique inheritance – poetic imagination and rational logic – made her the ideal prophet of the digital age. 

I hope you like the documentary -  it was a real labour of love for all of us. I think the director Nat Sharman has created a very beautiful film - I hope you'll agree. 

Most of all though I hope that you'll see, as I do, that Ada - full of her flaws and failings is the perfect inspirational figure for our subject. A woman who swore and smoked and said what she damn well thought. It’s a beautiful demonstration that whoever you are, whatever your character, there is a place for you in science. 

Climate Change by Numbers

This still of me &amp; my trusty lightsabre is taken from  here

This still of me & my trusty lightsabre is taken from here

My very first documentary Climate Change by Numbers aired in the UK on the 2nd of March. It aims to cut through the oceans of information surrounding the subject and focus its attention on just three key figures from the IPCC report - each symbolic of a different aspect of the climate change debate. 

My number, 0.85 degrees, is the amount the Earth has warmed since 1880. But this value raises a number of questions. How do you take the temperature of the earth? How do you account for parts of the world where you don't have data? How do you do this going back in time? And with all of the uncertainty of the data and issues with the methods, how can you be sure that the planet is really warming? 

By choosing three mathematicians to host the show, rather than Earth scientists, we were able to explore the methods used by climate experts in a dispassionate light - focusing on how they arrive at their conclusions, rather than debating the conclusions themselves. 

The programme was produced by the brilliant Alex Freeman &  will be up on BBC iplayer until the beginning of April. I understand there is also a worldwide version - something to look out for if you are not in the UK.

The Mathematics of Love

Cardigans are COOL. Don’t let anyone tell you otherwise.

Cardigans are COOL. Don’t let anyone tell you otherwise.

My (2015) TED talk, The Mathematics of Love was the 6th most watched talk of that year on To date, it has received over 5 million views across all TED channels. If I’d known that many people would end up watching it, I probably would have tried a bit harder to come across like the extre-eemely professional and VERY serious mathematician we all know I am.

The Mathematics of Love in the media

Image from the guardian website

Image from the guardian website

There was lots of lovely coverage of the Mathematics of Love in the UK press around valentines day, both online and in print. Highlights included a double page spread in the Observer, a feature in BBC magazine, articles in the Independent, Sunday Times and the Metro. The Daily Mail even had it as their book of the week, even though  <ahem> their headline writer clearly hadn't read it. 

Some nice international bits too. The book was chosen as Best of the Month on iBooks/iTunes US for February and had coverage everywhere from Australia, India and China. Although I have no idea what that last one says..

I did a lot of radio interviews too (lots of fun, but I wouldn't necessarily recommend it to anyone with a heart condition). Too many to post here, but here's one of my faves with Guy Raz on NPR

Finally, the book also received these astonishingly positive reviews in Brain Pickings and the Washington Post, both of which are basically the highlight of my whole life ever. 

The Mathematics of Love

Here is the US cover of my first ever popular science book - available from Amazon in ebook, hardback and audiobook. 

It's based on a talk I gave in Binghamton New York last spring and forms one twelfth of the first TED books series: a boutique collection of short books released over the course of a year. 

The book is available in hardbackebook and audiobook

More info on the book can be found on the homepage, or the original talk. 

Radio Four Documentary: Can Maths Combat Terrorism?


In my first ever full length radio documentary, producer Michelle Martin and I investigate the hidden patterns behind terrorism and asks whether mathematics could be used to predict and prevent future attacks.

It links in to the academic work I've been doing recently, but - unlike in much of academia - allowed for a chance to ask the bigger questions. Can modelling techniques be used to predict if, and when, another attack the size of 9/11 will occur?

You can listen to the documentary on the BBC website here. (UK only)