More or Less

٠٫٠ (٠)
الرياضيات
يتم التحديث أسبوعيًا

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

قبل يومين

Has a company really discovered a million new species?

Have a million new species just been discovered? That’s the claim made by Dr Oliver Vince, co-founder of a company called Basecamp Research, who are collecting genetic data to train AI systems. The hope is that they’ll be able to use this to discover new medicines. But is this number a good one? Rob Finn, from the European Bioinformatics Institute, explains what is being counted and how you go about counting them. Credits: Presenter and producer: Tom Colls Production co-ordinator: Brenda Brown Sound mix: Dave O’Neill Editor: Richard Vadon

٩ من الدقائق
٢١ فبراير

Did AI researchers let AI hallucinations into scientific papers?

AI can make mistakes – and AI chatbots like ChatGPT warn you about that whenever you ask them anything. These mistakes sometimes involve making up entirely fictitious, factually false statements known as “hallucinations”. Whether these hallucinations matter depends on what you’re using AI for, and whether they are spotted and corrected. The team on More or Less were slightly surprised to read a headline in Fortune magazine, claiming that a top academic AI conference accepted research papers which contained 100 AI-hallucinated citations. You might think that the top AI researchers in the world would be careful about using AI to write their research papers. Alex Cui, CTO and co-founder of GPTZero – whose company discovered the hallucinations – explains what’s going on. CREDITS: Presenter and producer: Tom Colls Sound mix: James Beard Production co-ordinator: Brenda Brown Editor: Richard Vadon

٩ من الدقائق
١٧ فبراير

Is an ancient charioteer the best paid sportsperson of all time?

Modern sport can seem awash with money, but it’s been claimed that the richest sportsperson of all is an ancient Roman Charioteer from the second century AD called Gaius Appuleius Diocles, with career winnings that stood at 35 million sesterces. One calculation has translated that into an astonishing $15 billion dollars today, and it’s a figure that’s stuck. But should we believe it? Duncan Weldon talks to ancient historian Professor Mary Beard from the University of Cambridge to learn more about the big business of chariot racing, and how we should think about money and wealth in the economies of the past. Presenter: Duncan Weldon Producer: Nathan Gower Series Producer: Tom Colls Editor: Richard Vadon Programme Coordinator: Brenda Brown Sound Engineer: James Beard

٩ من الدقائق
٧ فبراير

Is this Premier League striker a secret maths genius?

Chelsea striker Liam Delap has recently stunned fans on Instagram by apparently doing incredibly complicated calculations in his head, finding what’s known as the cube root of some very large numbers. But is he really a human calculator? Or is there something else going on? Tim Harford speaks to Rob Eastaway, mathematician and author of ‘Maths on the Back of an Envelope’ to learn about the trick you can use to pull this off - and while he’s here we also ask him about the trend of more goals being scored in the Premier League. Presenter: Tim Harford Producers: Nathan Gower Series Producer: Tom Colls Editor: Richard Vadon Programme Coordinator: Brenda Brown Sound Engineer: James Beard Credit: Video of Liam Delap from Chelsea’s Instagram account, chelseafc

٩ من الدقائق
٣١ يناير

Could Europe use its financial muscle to strong-arm the US?

Could European Nato members use their large holdings of US shares and bonds to put pressure on America? It’s a question that some in Europe found themselves asking as the geopolitical crisis over Greenland escalated and leaders desperately tried to think of ways to dissuade Donald Trump. It is true that trillions of dollars of American financial assets are held in Europe. But the devil, as ever, is in the detail. Tim Harford talks to Toby Nangle, a journalist with the Financial Times, to drill down into the numbers. Presenter: Tim Harford Producer: Nathan Gower Series Producer: Tom Colls Editor: Richard Vadon Programme Coordinator: Brenda Brown Sound Engineer: James Beard

٩ من الدقائق
٢٨ يناير

Can you get £71,000 on benefits?

Tim Harford investigates some of the numbers in the news. This week: Is it true that someone needs to earn £71,000 before they receive more money than a family on benefits? Did Canadian prime minister Mark Carney get the GDP of Canada and the Nordic countries wrong? Are 1990s pop icons Right Said Fred right about what they said about church attacks? Is a sauna really ten times as hot as Wales in the winter? And Tim hits the science lab treadmill to find out if he can run a four-hour marathon. If you’ve seen a number in the news you want the team on More or Less to have a look at, email moreorless@bbc.co.uk Contributors: Gareth Morgan, benefits expert and author of the Benefits in the Future blog Joe Shalam, policy director of the Centre for Social Justice Professor Kelly Morrison, head of physics at Loughborough University Dr Danny Muniz, a senior lecturer in Exercise Physiology at the University of Hertfordshire Credits: Presenter: Tim Harford Reporters: Nathan Gower, Lizzy McNeill and Tom Colls Production co-ordinator: Brenda Brown Sound mix: Gareth Jones and James Beard Editor: Richard Vadon

٢٩ من الدقائق
٢٤ يناير

Is Greenland as big as Africa?

The vast island of Greenland has found itself at the centre of a geopolitical crisis. But a little bit of geography can help us see the situation in a new light. YouTuber and map expert Jay Foreman explains how Mercator maps - the maps that the vast majority of us use to understand the world - contain necessary but massive distortions and hugely exaggerate the size of the Arctic island. So, why is making a flat map of a round globe so difficult? Why did we end up with a problematic map in the first place? And are there any alternatives? Presenter: Tim Harford Producer: Nathan Gower Series Producer: Tom Colls Editor: Richard Vadon Programme Coordinator: Brenda Brown Sound Engineer: James Beard

٩ من الدقائق
٢١ يناير

How close is Greenland to the United States?

Tim Harford investigates some of the numbers in the news. This week: How far away is Greenland from the United States? We check a number From Our Own Correspondent. Does converting our entire energy system to be carbon neutral come with a £7.6 trillion price tag? Is the inevitable rise of house prices in the UK not so inevitable after all? Can the great mathematicians of history answer the question of the hour: how to play The Traitors? If you’ve seen a number in the news you want the team on More or Less to have a look at, email moreorless@bbc.co.uk Contributors: Jay Foreman, one half of YouTube duo the Map Men Mike Thompson, chief economist of the National Energy System Operator David Turver, author of The Cost of Net Zero, a report from the Institute of Economic Affairs Neal Hudson, housing market analyst and founder housing research website BuiltPlace Dr Kat Phillips, mathematician and Innovation research associate at the University of Warwick, Traitors aficionado Credits: Presenter: Tim Harford Reporter: Tom Colls Producers: Nathan Gower and Lizzy McNeill Production co-ordinator: Brenda Brown Sound mix: James Beard Editor: Richard Vadon

٢٩ من الدقائق

مشاهدة الكل (١٫١ ألف)

They steal billions: Cyber Hack investigates the alleged cyber gangs and the heists and hacks they’re accused of carrying out. No one is said to be safe. From Hollywood studios, to international banks, from crypto exchanges to small businesses and health care companies, law enforcement agencies say they cause chaos around the globe. Who will be next? And where is the money going? Latest season: Evil Corp. The Russian Evil Corp is accused of being a family crime gang, responsible for stealing hundreds of millions of dollars. Law enforcement agencies say they are “the most pervasive cybercrime group to ever have operated”. No one is off limits – not even a group of nuns in Chicago. Previously on Cyber Hack: The Lazarus Heist. This hacking group is said to be behind the biggest crypto heist in history, stealing billions of dollars in the process. Investigators blame North Korea’s state-backed hackers The Lazarus Group, and say the stolen money is being used to finance its nuclear weapons and missile development programs. Pyongyang denies involvement. Among the Lazarus Group’s many targets are Hollywood’s Sony Entertainment and the Bank of Bangladesh. ATMs are cleaned out of money, while its operatives live double lives in a hacker hotel. But where does the money trail lead?

٠٫٠ (0)

جرائم حقيقية
The daily drama of money and work from the BBC.

٠٫٠ (0)

الأعمال
The Inquiry gets beyond the headlines to explore the trends, forces and ideas shaping the world.

٥٫٠ (2)

تعليقات الأخبار
A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.

٠٫٠ (0)

العلوم
Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world. History fans can learn about pivotal wars and societal upheavals, such as the rise and fall of Napoleon, the Sack of Rome in 1527, and the political intrigue of the Russian Revolution. Those fascinated by the lives of kings and queens can journey to Versailles to meet Marie Antoinette and Louis XIV the Sun King, or to Ancient Egypt to meet Cleopatra and Nefertiti. Or perhaps you're looking to explore the history of religion, from Buddhism's early teachings to the Protestant Reformation. If you're interested in the stories behind iconic works of art, music and literature, dive in to discussions on the artistic genius of Michelangelo's Sistine Chapel and Van Gogh's famous Sunflowers. From Gothic architecture to the works of Shakespeare, each episode of In Our Time offers new insight into humanity's cultural achievements. Those looking to enrich their scientific knowledge can hear episodes on black holes, the Periodic Table, and classical theories of gravity, motion, evolution and relativity. Learn how the discovery of penicillin revolutionised medicine, and how the death of stars can lead to the formation of new planets. Lovers of philosophy will find episodes on the big issues that define existence, from free will and ethics, to liberty and justice. In what ways did celebrated philosophers such as Mary Wollstonecraft and Karl Marx push forward radical new ideas? How has the concept of karma evolved from the ancient Sanskrit texts of Hinduism to today? What was Plato's concept of an ideal republic, and how did he explore this through the legend of the lost city of Atlantis? In Our Time celebrates the pursuit of knowledge and the enduring power of ideas.

٠٫٠ (0)

تاريخ
Jamie Bartlett, host of the hit podcast The Missing Crypto queen, is back with another gripping, investigative serial. In his new series, Jamie tells the story of Megan Bhari, an inspirational 16 year old girl who in 2012 launches a charity to grant wishes to seriously ill children. The charity is called Believe in Magic and it attracts the support of the biggest boy band in the world: One Direction. Believe in Magic soon becomes a household name in the child cancer community, putting on parties, sending thoughtful gifts and organizing trips to Disney. Megan is adored by all those she helps and is given an award by the then Prime Minister David Cameron. What’s even more remarkable is that Megan is herself extremely unwell. She announces that she has been diagnosed with a brain tumour. She raises money online for life saving treatment in the United States. But a group of internet sleuths start to suspect that Meg isn’t ill at all. When they discover Megan is in a Disney resort rather than a US hospital, they decide to hire a private detective to prove Megan is faking her illness–and expose the truth to the world. But events take an unexpected turn. And the internet sleuths-who are all parents of seriously ill children themselves-begin to wonder if they've got it all wrong. "It wasn't meant to end like this," says one. Author Jamie Bartlett and producer Ruth Mayer investigate the truth about Megan Bhari, tracing back over the sleuths’ incredible discoveries, meeting Megan’s old friends and supporters, and exploring the medical profession’s most mysterious condition. After months of investigation, Jamie and Ruth discover a secretive investigation into the truth about Megan’s medical condition. The conclusion is shocking–and will have far-reaching consequences for everyone involved. Believe in Magic is a BBC Studios production.

٠٫٠ (0)

جرائم حقيقية