Nostalgia is one of those complicated emotions: we long to be transported to a place or moment in the past that we have loved but at the same time feel sad that it has gone forever. It is also a bit of a slippery intellectual concept: regarded as a malady when the term was first coined in the 17th century, nostalgia is now thought to be benign or even mildly therapeutic. And beyond personal recollections, business uses it to sell all manner of things and some politicians skilfully deploy it to h...
May 17, 2025•49 min
Airports: at their most basic level places to fly from to reach destinations near and far. And yet so much more. Iszi Lawrence and guests take a look at the evolution of airports, from their beginnings as military airstrips to the modern-day behemoths with their luxury shopping outlets, gardens and art galleries. The early European airports were modelled on railway stations, as that was the only blueprint for a transport hub. The public became so enthralled by air travel that airports eventually...
Apr 19, 2025•49 min
What is the purpose of libraries in the era of the internet and AI? Whether at a school or in a community, libraries used to be key providers of information and enjoyment for many. But now, in a digital age, more books and periodicals are available online than even the biggest library can hold. If terabytes of text can now be stored on a single laptop, do we need to think differently about the way we access and navigate books? Could well-designed AI tools be trusted to make sense of this informa...
Mar 15, 2025•49 min
From Colombia to Vietnam and beyond, the US dollar is the currency in which much of international business is conducted, and which many people outside the US use as a means of exchange and a store of value. So how did a country with just over 4 percent of the world’s population come to dominate global banking and trade? When the position of the US dollar as the linchpin of global commerce was confirmed at the end of the Second World War, not everyone was happy with this state of affairs: the Fre...
Feb 15, 2025•49 min
Where do charismatic personalities come from? Are they people born with special or even divine gifts? Or have they simply mastered a few effective techniques for cordial social interaction that anyone can learn? As business, entertainment and politics increasingly turn into popularity contests conducted through social media and TV, charisma seems to matter more and more: hence the proliferation of companies offering to teach aspiring leaders how to acquire it. But the influence that magnetic per...
Jan 18, 2025•49 min
When the writer Sir Arthur Conan Doyle killed off his most famous literary creation, Sherlock Holmes, readers were so angry that thousands cancelled their subscriptions to the magazine in which the stories appeared. The editor and Conan Doyle himself were overwhelmed with letters from a furious public - fans who instead of accepting the death of their favourite fictional character then started to write and share their own stories featuring Holmes. They eventually formed clubs and appreciation so...
Dec 21, 2024•49 min
Jewellery can enthral us in many ways: it can delight, inspire and uplift us or it can transport us to the place where we acquired it. It can also make us avaricious or jealous. But why? What explains our enduring fascination with shiny metal and colourful stones? Iszi Lawrence is joined by Dr. Emily Stoehrer, Senior Curator of Jewelry at the Boston Museum of Fine Arts and author of several books on American jewellery and fashion; Dr. Petra Ahde-Deal, a Finnish gemmologist and jeweller who curre...
Nov 16, 2024•49 min
Do you find it difficult to get a good night's sleep? If you do, you are not alone. According to the US National Institutes of Health, between 6 and 30 per cent of adults suffer from insomnia or lack of restorative sleep. Since the establishment of sleep medicine a century ago, we have learnt a lot about the causes of sleeplessness. And yet, as the continuing development of new sleep aids demonstrates, its prevalence remains high. Persistent lack of sleep can have serious consequences for your h...
Oct 19, 2024•49 min
The first public run of the Japanese ‘bullet train’, the Shinkansen, on the 1st of October 1964, captured public imagination worldwide. And it wasn’t just the train’s sleek look or its high speed that made the headlines. Behind the train’s futuristic exterior lay a whole host of engineering innovations: new pantographs, automatic signalling, revolutionary drive units. Since then, very fast train travel has become available in over a dozen other countries. Places such as China and Spain have over...
Sep 21, 2024•50 min
During the Covid-19 pandemic, many people found that keeping a diary was one way of reducing stress during uncertain times. They also felt that it was important to chart their day to day experience of a historic moment in world history. Such diaries will be valuable sources in years to come for historians, providing future scholars with a glimpse into the lives of ordinary people. These diaries form part of a long tradition of people chronicling their own stories, whether intended for publicatio...
Aug 24, 2024•49 min
Humans have always co-existed with mountains, as ancient remains found in glaciers prove. But our interest in them may have been more spiritual or religiously motivated, rather than as a place to go to improve our health and wellbeing. In some cultures today, mountains are still considered to be the home of deities. So when did mountaineering become a popular pastime and how did the obsession with bagging summits start? Iszi Lawrence investigates our evolving relationship with the planet’s highe...
Jul 20, 2024•49 min
Many of us remember the first portable music device we owned: a transistor radio, a boombox, a Walkman or perhaps an iPod. We might even recall the songs we played on it. But we might be less aware of how profoundly audio technology developments from the 1950s to 2000s changed the ways in which we consume music and other audio outside of the home or concert venue. Transistor radios allowed outdoor sounds and noises to mix and compete with those coming over the airwaves, creating new auditory exp...
Jun 15, 2024•49 min
Among all the talk about ‘knowledge economy’ it is easy to forget that universal schooling is a relatively new phenomenon. Mandated first in a few European countries in the 18th century, it did not reach many others until the 20th. And the idea that women have an equal right to be educated frequently encountered stiff opposition, often from the privileged who feared that knowledgeable females would upset the social status quo. Just about everywhere, the right to women’s education was hard won: f...
May 18, 2024•49 min
In February 2024, the renowned Indian geneticist Dr. MS Swaminathan was posthumously awarded the country’s highest civilian honour, the Bharat Ratna. This was in recognition of the dramatic increase in the yields of food staples, such as rice and wheat, that Indian agriculture experienced under his stewardship of the ‘green revolution’ in the 20th century. That revolution is credited with saving many people from hunger and malnutrition across Asia and Latin America. And yet, half-a-century on fa...
Apr 20, 2024•49 min
‘Always pass the salt and pepper together, even if your fellow diner has asked just for one of them’. That’s the standard advice given by countless dining etiquette manuals, one of the many rules regarding proper manners that have been handed down from generation to generation. But what if some of the rules have become outdated, silly or just wrong? And why do we have etiquette in the first place? Where do the rules of polite conduct come from and are they the same the world over? Iszi Lawrence ...
Mar 16, 2024•49 min
Supermarkets: they are ubiquitous yet hard to define, lauded and vilified in roughly equal measures, and in many countries they have a huge influence on what we eat. Technological innovations, big social changes and new shopping habits have all shaped their development and today’s megastores are a far cry from their small-scale ancestors of the 1930s. And yet, some quirks of supermarket design remain constant: for instance, why are the eggs always so hard to locate in the stores? Iszi Lawrence n...
Feb 17, 2024•49 min
In the 1990s, an advert for a brand of chocolate depicted a sophisticated gathering hosted by the foreign ambassador of an unspecified country. It hinted at a gilded existence of cocktail parties and small talk among influential, wealthy guests. Iszi Lawrence finds out how the stereotype of the diplomatic world compares with the reality of international relations. Who does the real work behind the scenes and who has the power? When we see powerful leaders on the world stage shaking hands and sig...
Jan 20, 2024•49 min
The humble plastic bag is actually a marvel of engineering: it is cheap, light, strong, waterproof and it has conquered the world. In countries where plastic bags have been banned, they are still being smuggled in. The environmental pollution and other problems that discarded plastic can cause has made it a focus of passionate debate. But is plastic really the problem or is it our increasing use of disposable and single-use items? The popularity of disposable products predates the invention of t...
Dec 16, 2023•49 min
Political parties come in all shapes and sizes and their ideas are just as varied. But what kind of parties best reflect 21st-century society? How do we, as voters, choose between them at elections? What are their ever-increasing expenses spent on? And - perhaps most importantly - how well do political parties respond to the needs and views of the public? Iszi Lawrence discusses these questions with Professor Leonie Huddy from Stony Brook University who studies the psychology of politics, Associ...
Nov 18, 2023•49 min
We can probably all think of examples of bad bosses – the people who we love to gossip about with our colleagues outside work. And even if you’re lucky enough to have had good experiences of management, you may be familiar with bad bosses from popular culture. But what makes a good manager and how can you inspire people in the workplace? It’s a question that’s been debated since the Industrial Revolution when rapidly expanding companies needed a way of controlling their workers. From there devel...
Oct 21, 2023•49 min
Whether we are pedestrians, cyclists or drivers, roads play a crucial role in our everyday lives. But where and how should we build any new ones? What kind of roads do we need? And how did we end up with the ones we have? Rajan Datar talks about the past and present of roads and roadbuilding with anthropologist Traci Ardren from the University of Miami, civil engineer Kate Castle, historians Alexis DeGreiff from the National University of Colombia in Bogota and Aparajita Mukhopadhyay from Kent U...
Sep 16, 2023•48 min
For every young American under the age of 18, there are about two cats or dogs receiving free food and lodgings in US homes and that pattern is replicated in many other countries. So why do so many of us keep pets? Why do we name them, consider them part of the family? Companionship, pleasure, status symbol and kinship with all life have been offered as explanations but it's easy to forget that mass keeping of pets - as opposed to working animals - is a recent development of the last two centuri...
Aug 19, 2023•49 min
In some ways the 21st century is a very unusual time when it comes to adolescence - a study in the US found that teenagers smoke less, drink less and have less sex than the previous generation. And worldwide young people are coming of age in a digital era, with the dangers and opportunities that represents. Our expectations of teenagers vary hugely depending on the social, historical and cultural context. Paleoanthropologist Ella Al-Shamahi takes us through the big evolutionary questions about a...
Jul 15, 2023•49 min
From Bhutan to The Bahamas and Iceland to Indonesia, mass tourism has grown at an unprecedented rate over the last few decades. Today’s top destinations are struggling with the sheer numbers of visitors and the United Nations has called for a total rethink on how the industry operates. The origins of travel for pleasure go back centuries and package holidays in the 1960s made it accessible to many in the West but it’s only the combination of cheap flights and the advent of the internet that has ...
Jun 17, 2023•50 min
Are we in a new age of information warfare? The technology to create deepfakes has progressed steadily over the past decade and enables anyone to create videos of people saying and doing things they didn’t actually say or do. But the idea of manipulating video to spread misinformation is almost as old as film itself. Presenter Iszi Lawrence invites a panel of experts to tackle your questions about AI technology and the uses of deepfakes. Is this something we should be concerned or excited about?...
May 20, 2023•49 min
When telecoms engineer Martin Cooper first chatted in public on a mobile phone 50 years ago few would have predicted that this brief telephone call would be the start of a revolution that would change the lives of billions. Over the last half a century, the mobile has transformed not just how we communicate with each other but also how we view and interact with the world around us. However, recent research suggests that this may not all be for the best. Drawing on listeners comments and question...
Apr 15, 2023•49 min
Given the submarine's importance to many of the world's navies, it's perhaps surprising to learn that for many years it was considered an inventor's folly and of little use in maritime warfare. Indeed the submarine had a difficult birth because of the technical challenges involved in putting a moving vessel underwater, challenges that could only be overcome once the technology became available. The submarine eventually proved its potential in World War I, where its ability to pass undetected ush...
Apr 13, 2023•39 min
A child prodigy on the piano, then a glamorous jazz and popular music entertainer, a civil rights campaigner and the first black American woman to host her own TV show: for the first three decades of her life, Hazel Scott’s rise to fame was vertiginous. Born in Trinidad in 1920, Scott was the headliner in some of New York’s most fashionable clubs by the time she was twenty. A couple of years later she became one of Hollywood’s highest paid entertainers and then married one of the most high-profi...
Apr 06, 2023•41 min
Do you like cocoa? You are in good company: in South and Central America people have been enjoying the fruit of the cacao tree - the source of cocoa, chocolate and much else - for thousands of years. Ancient empires fought battles for the control of the best trees, cacao beans were used as currency, and being able to make a tasty cacao drink could even save your life. To trace the history of cacao in Latin America, Bridget Kendall is joined by archaeologist Cameron McNeil, chef and food historia...
Mar 30, 2023•39 min
The Hoover Dam in the US, the Aswan Dam in Egypt and the recently opened, and sumptuously named, Grand Ethiopian Renaissance dam. Since modern times, huge mega dams like these to tame rivers, create water storage and hydropower, have become a symbol of nationhood used to create national pride and bolster political power, from the Cold War to today. Nehru, the first Prime Minister of India, called dams the temples of modern India. But dams have also been highly controversial, displacing rural pop...
Mar 23, 2023•39 min
