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PODCAST

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Tim Harford explains - and sometimes debunks - the numbers and statistics used in political debate, the news and everyday life

science mathematics

All Episodes

28:43

Council tax weirdness: Hartlepool vs Westminster

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2024/02/07

Do you really pay more in council tax on a semi in Hartlepool than a mansion in Westminster? How do the Office for National Statistics work out how much the UK population is going to grow by? How much do junior doctor strikes cost? Is home grown veg worse for climate change than veg grown on a farm?Tim Harford investigates the numbers in the news.Presenter: Tim Harford Producers: Nathan Gower, Debbie Richford and Perisha Kudhail Series producer: Tom Colls Production co-ordinator: Brenda Brown Sound

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9:11

A pocket-size history of the calculator

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2024/02/03

How was the calculator invented? How did it go from something the size of a table to something that could be carried in your pocket, the must-have gadget of the 1970’s and 80’s? Tim Harford unpicks the history of the calculator with Keith Houston, author of Empire of the Sum: The Rise and Reign of the Pocket Calculator. Presenter: Tim Harford Producer: Debbie Richford Production Co-ordinator: Brenda Brown Series Producer: Tom Colls Sound Mix: Hal Haines Editor: Richard Vadon

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28:44

Measles, Traitors and the cost of Brexit

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2024/01/31

Was there really a 5% measles vaccination rate in Birmingham? Has Brexit already cost 6% of the UKs economy? For how long has crime been falling? And are contestants on the reality gameshow any good at finding traitors?Tim Harford investigates the numbers in the news.Presenter: Tim Harford Producers: Nathan Gower and Debbie Richford Series producer: Tom Colls Production coordinator: Brenda Brown Sound mix: Rod Farquhar Editor: Richard Vadon

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10:05

Is Oxfam right about the world’s richest and poorest...

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2024/01/27

We investigate Oxfam’s claim that “since 2020, the five richest men in the world have seen their fortunes more than double, while almost five billion people have seen their wealth fall”. With the help of Johan Norberg, Historian and Author of ideas and Felix Salmon, Financial Correspondent at Axios, we explore the figures behind the wealth of the richest and uncover what it really tells us about the world’s financial markets. And Charles Kenny, senior fellow at the Centre for Global Development in

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28:32

Shopping, shipping and wind chill-ing

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2024/01/24

Was Labour shadow chancellor Rachel Reeves wrong about the increase in the price of the weekly shop? What has the violence at sea done to the cost of shipping? Why did YouGov feel the need to correct an analysis of their polling? Are there 30 million GP appointments every month? And how does wind chill work? Tim Harford investigates the numbers in the news.Presenter: Tim Harford Reporters: Charlotte McDonald and Nathan Gower Producer: Debbie Richford Series producer: Tom Colls Production

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8:58

Are there more possible games of chess than atoms in...

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2024/01/20

We investigate how the vast possibilities in a game of chess compare to the vastness of the observable universe.Dr James Grime helps us understand the Shannon number – a famous figure on the chess side of the equation - and astronomer Professor Catherine Heymans takes on the entire observable universe. Presenter: Tim Harford Producers: Debbie Richford and Nathan Gower Production Co-ordinator: Brenda Brown Series Producer: Tom Colls Sound Mix: Andy Fell Editor: Richard Vadon

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23:56

Life expectancy, inheritance tax and the NHS vs winter

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2024/01/17

We report on the state of the NHS as it struggles through a double wave of Covid and flu infections.We report on the state of the NHS as it struggles through a double wave of Covid and flu infections.Do only 4% of people pay inheritance tax? Paul Lewis sets out the figures.And what do the latest life expectancy figures tell us about how long we’re going to live?Presenter: Tim Harford Reporter: Kate Lamble Producers: Nathan Gower and Debbie Richford Series producer: Tom Colls Production co-ordinator:

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8:58

Do we see 10,000 adverts per day?

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2024/01/13

How many adverts does the average person see in a day? If you search for this question online, the surprising answer is that we might see thousands – up to 10,000.However, the idea that we see thousands of adverts is a strange and confusing one, without any good research behind it. We investigate the long history of these odd numbers, with the help of Sam Anderson from The Drum and J Walker Smith from Kantar. Presenter: Tim Harford Series producer: Tom Colls Production co-ordinator: Brenda Brown

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28:46

Deaths, taxes and missing cats

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2024/01/10

Did London see a 2500% increase in gun crime? Are taxes in the UK the highest since the 1950s? Did the UK have high excess deaths from Covid, compared to the rest of Europe? Do three cats go missing every second in the UK? Tim and the team investigate a few of the numbers in the news. Presenter: Tim Harford Producer: Nathan Gower Series Producer: Tom Colls Production co-ordinator: Maria Ogundele Sound mix: James Beard Editor: Richard Vadon

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8:58

How much money do the ‘Ndrangheta mafia make?

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2024/01/06

The ‘Ndrangheta are one of Italy’s biggest and most dangerous criminal gangs. One piece of research suggested they have an annual turnover of €53bn - more than McDonalds and Deutsche Bank combined.But is that number realistic? Professor Anna Sergi and Professor Francesco Calderoni help us figure out what kind of number makes sense.Reporter: Perisha Kudhail Series producer: Tom Colls Sound mix: Neil Churchill Editor: Richard Vadon(Picture: Human hands with strings controlling diagram. Credit: Boris

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13:08

Numbers of the year 2023

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2023/12/30

Each year we ask some of our favourite statistically-minded people for their numbers of the year. Here they are - from the population of India to the results of a first division football match. Contributors: Hannah Ritchie, Our World in Data Professor Sir David Spiegelhalter, Cambridge University Timandra Harkness, writer and comedian Rob Eastaway, maths author Presenter: Charlotte McDonald Series Producer: Tom Colls Sound Engineer: Neil Churchill Editor: Richard Vadon (Picture: Colourful

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8:59

Can chocolate be better than salad?

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2023/12/23

We investigate a nutritional conundrum –can chocolate ever be better for you than salad? Today we dive in to one of our listener’s family debates and try to find an answer, with the help of nutrition experts Dr David Katz and Professor Bernadette Moore.Reporter: Paul Connolly Researcher: Perisha Kudhail Series Producer: Tom Colls Sound Engineer: James Beard Editor: Richard Vadon (Picture: A pyramid made of chocolate and salad Credit: Gandee Vasan / Getty Images)

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8:58

China’s missing numbers

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2023/12/16

How many young people are unemployed? How much debt does the government owe? How many people have died from Covid? These are questions that many governments will keep regularly updated. But in China they have disappeared. We investigate the reasons behind China’s missing numbers. Reporter: Celia Hatton Series Producer: Tom Colls Sound Engineer: Graham Puddifoot Editor: Richard Vadon (Picture: Chinese flag behind a graph with statistics Credit: Igor Kutyaev/iStock/Getty Images Plus)

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8:58

Does endurance sport harm your heart?

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2023/12/09

Exercise is good for you in all kinds of ways, there is no medicine like it to prevent a whole range of illnesses. But for some endurance athletes, exercise also comes with increased risk of a heart condition called atrial fibrillation.We look for the right way to think about the risks around exercise. Reporter: Paul Connolly Series Producer: Tom Colls Sound Engineer: Graham Puddifoot Editor: Richard Vadon(Picture: A cyclist training in the mountains Credit: anton5146/Getty Creative)

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9:58

Will there be a billion climate refugees?

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2023/12/02

Former Vice President Al Gore has said that climate change is predicted to lead to a billion climate refugees. But where do these predictions come from and are they realistic? We investigate the idea that floods, droughts, storms and sea level rise will cause a mass migration of people across borders. Reporter and Producer: Tom Colls Sound Mix: James Beard Editor: Richard Vadon (Photo: Floods in central Somalia Credit: Said Yusuf - WARSAME/EPA-EFE/REX/Shutterstock)

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8:58

A boy meets girl meets stats story

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2023/11/25

Veronica Carlin is a data scientist who loves romantic comedies. But she had a hunch about those movies, that there aren’t many women like her, women in STEM - science, technology, engineering and maths – taking the lead roles. So she set out on a maths quest to find out what’s what. Presenter: Kate Lamble Series Producer: Tom Colls Editor: Richard Vadon Sound Engineer: Graham Puddifoot (Picture: A young couple with a heart-shaped balloon on the street Credit: Cultura RM Exclusive/Spark

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8:58

Are women in the UK the biggest binge drinkers in the...

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2023/11/18

We check out suspect stats on boozing Brits and fishy figures on fishing fleets in the South China Sea.With the help of Professor John Holmes from the University of Sheffield's School of Medicine and Population Health and Simon Funge-Smith, a senior fishery officer at the FAO.Presenter and producer: Charlotte McDonald Series Producer: Tom Colls Editor: Richard Vadon Sound Engineer: Graham Puddifoot

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10:00

Can maths prove the existence of aliens?

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2023/11/11

Are we alone in the universe – and if not, how many other civilisations might there be? Remarkable images and data sent back to Earth by the James Webb telescope have given a new impetus to a well-worn debate. We ask how far mathematics – and in particular a famous equation called the Drake Equation – can be used to answer one of the most fundamental questions we face. Paul Connolly investigates with the help of Catherine Heymans, Astronomer Royal for Scotland and Professor at the University of

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8:57

Do Indian women own 11% of the world’s gold?

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2023/11/04

The cultural importance of gold in India as a symbol of wealth, prosperity and safety is well known – but how much do Indians actually own? Reporter Perisha Kudhail looks at a widely circulated claim about Indian women owning 11% of the world’s gold, with the help of Delhi based journalist Mridu Bhandari and Joshua Saul, CEO of the Pure Gold Company. Presenter: Ben Carter Reporter and Producer: Perisha Kudhail Series Producer: Jon Bithrey Editor: Richard Vadon Sound Engineer: James Beard(Image:

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9:23

The Overlooked Mathematicians of History

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2023/10/28

Conventional histories of mathematics are dominated by well-known names like Pythagoras, Leibniz or Newton. But to concentrate solely on figures from Europe gives us only a patchwork understanding of the rich and varied history of mathematical achievement around the world. Tim Harford speaks to Dr Kate Kitagawa, co-author of ‘The Secret Lives of Numbers’ to explore the long history of mathematical advances and innovation across civilisations and centuries, from the female mathematician at court in

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