Author: BBC World Service

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50 Things That Made the Modern Economy - Department Store

Flamboyant American retailer Harry Gordon Selfridge introduced Londoners to a whole new shopping experience, one honed in the department stores of late-19th century America. He swept away previous shopkeepers’ customs of keeping shopper and merchandise apart to one where “just looking” was positively encouraged. In the full-page newspaper adverts Selfridge took out when his eponymous department store opened in London in the early 1900s, he compared the “pleasures of shopping” to those of “sight-seeing”. He installed the largest plate glass windows in the world – and created, behind them, the most sumptuous shop window displays. His adverts pointedly made clear that the “whole British public” would be welcome – “no cards of admission are required”. Recognising that his female customers offered profitable opportunities that competitors were neglecting, one of his quietly revolutionary moves was the introduction of a ladies’ lavatory. Selfridge saw that women might want to stay in town all day, without having to use an insalubrious public convenience or retreat to a respectable hotel for tea whenever they wanted to relieve themselves. As Tim Harford explains, one of Selfridge’s biographers even thinks he “could justifiably claim to have helped emancipate women.” Producer: Ben Crighton Editors: Richard Knight and Richard Vadon (Images: Selfridges Christmas shop window, Credit: Stuart C. Wilson/Getty Images)
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CrowdScience - Do We Think in Words?

We're always up for a challenge on CrowdScience but this week’s question, which comes from an artist, tests our limits as we investigate the nature of thought itself – something that has puzzled scientists and philosophers since ancient times. Undeterred, presenter Nastaran Tavakoli-Far heads off to the Spanish island of Ibiza to visit listener Romanie in her painting studio and attempt to peer into the workings of her mind. As we explore the relationship between thought and language, why not join in with our experiments to discover if you’re thinking visually or verbally? We find out how language can affect thinking in surprising ways – why German speakers might see a bridge differently from Spanish speakers, how being bilingual can make you a better driver and even why some languages give their speakers a remarkable sense of direction.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk Presenter: Nastaran Tavakoli-Far Producer: Cathy Edwards

(Image: The Thinker a bronze sculpture by Auguste Rodin. Credit: Getty Images)

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50 Things That Made the Modern Economy - Barbed Wire

In 1876 John Warne Gates described the new product he hoped to sell as “lighter than air, stronger than whiskey, cheaper than dust”. We simply call it barbed wire. The advertisements of the time touted it this fence as “The Greatest Discovery Of The Age”. That might seem hyperbolic, even making allowances for the fact that the advertisers didn’t know that Alexander Graham Bell was just about to be awarded a patent for the telephone. But – as Tim Harford explains – while modern minds naturally think of the telephone as transformative, barbed wire wreaked huge changes in America, and much more quickly. Producer: Ben Crighton Editors: Richard Knight and Richard Vadon (Image: Barbed wire and sun, Credit: Getty Images)
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CrowdScience - Can plants talk?

David in Bogota might have raised a few eyebrows in the CrowdScience office with his questions – can plants talk? And can they hear us talking to them? But actually scientists now know that plants do have the ability to communicate with the world around them to a much greater extent than previously thought. Some scientists even talk about plants being able to “hear” a hungry caterpillar or the sound of running water, while others argue that we should not anthropomorphise plants.

One underground communication network, affectionately dubbed the Wood Wide Web by scientists, is made of fungi that grow off the roots of plants. The network lets plants forge alliances, friendships and business partners.

But as we learn nothing is free in nature. In return for their haulage services, the fungi which make up the network siphons off some of the sugar produced during photosynthesis by the plants. Presenter Anand Jagatia goes foraging for answers in the woods together with fungal ecologists.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Anand Jagatia Producer: Louisa Field

(Image: Misty path running through woodland. Credit: Getty Images)

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50 Things That Made the Modern Economy - Tax Havens

The economist Gabriel Zucman is the inventor of an ingenious way to estimate the amount of wealth hidden in the offshore banking system. In theory, if you add up the assets and liabilities reported by every global financial centre, the books should balance. But they don’t. Each individual centre tends to report more liabilities than assets. Zucman crunched the numbers and found that, globally, total liabilities were eight percent higher than total assets. That suggests at least eight percent of the world’s wealth is illegally unreported. Other methods have come up with even higher estimates. As Tim Harford explains, that makes the tax haven a very significant feature of the modern economy. Editors: Richard Knight and Richard Vadon Producer: Ben Crighton (Image: Huts along tropical beach, Credit: DonLand/Shutterstock)
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CrowdScience - Can Your Lifestyle Be Passed on to Future Generations?

Back when Charles Darwin presented his theory of evolution by natural selection, French biologist Jean-Baptiste Lamarck suggested something different - that the changes you are exposed to during your lifetime can be passed on to future generations. By this theory, giraffes have long necks because, over generations, they have stretched them, reaching for leaves.

This theory became laughable when genes were discovered as the means of heredity. Lifestyle choices cannot be passed down in your DNA, or so we thought….But recently this idea has returned and a new field of biology has emerged called epigenetics – which looks at how the genes we inherit from our parents are controlled and modified by their life experience and the choices they made.

Marnie Chesterton meets the survivors of the Dutch Famine of World War Two, whose grandchildren show health effects from that event despite being born three generations after the starvation of 1944.

As the new field of epigenetics develops, does this mean Lamarck was right all along? Can your lifestyle be passed on to future generations and does this mean we need to rethink our traditional view of evolution?

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presented and Produced by Marnie Chesterton

(Image: Grandmother, Mother and Daughter in a kitchen. Credit: Getty Images)

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50 Things That Made the Modern Economy - Infant Formula

Not every baby has a mother who can breastfeed. Indeed, not every baby has a mother. In the early 1800s, only two in three babies who weren’t breastfed lived to see their first birthday. Many were given “pap”, a bread-and-water mush, from hard-to-clean receptacles that teemed with bacteria. But in 1865 Justus von Liebig invented Soluble Food for Babies – a powder comprising cow’s milk, wheat flour, malt flour and potassium bicarbonate. It was the first commercial substitute for breastmilk and, as Tim Harford explains, it has helped shape the modern workplace. Editors: Richard Knight and Richard Vadon Producer: Ben Crighton (Image: Baby lying down drinking from bottle, Credit: Lopolo/Shutterstock)
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CrowdScience - Why Does It Always Rain on Me?

Listener Ros Allen wondered why it always seems to rain on her village but not the one a mile away. It’s all down to microclimates. CrowdScience explores the impact of microclimates on our lives, discovers how more rain can help an English tea plantation and reveals the deadly effect of the urban heat island. Marnie Chesterton also talks to a local project in New York City, the Cool Roofs Program, that aims to reduce the urban heat effect, helping to mitigate the impacts of climate change. But just how much of a difference can measures like this really make?

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Marnie Chesterton Producer: Marijke Peters

(Image: Women standing on the edge of a forest with an umbrella. Credit: Getty Images)

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World Book Club - Jeffrey Archer – Kane and Abel

This month World Book Club is in the BBC Radio Theatre and is talking to one of the most popular and widely read British novelists, Jeffrey Archer, about his stunningly successful novel Kane and Abel.

William Lowell Kane and Abel Rosnovski, one the son of a Boston millionaire, the other a penniless Polish immigrant are two ambitious men born on the same day on opposite sides of the world.

Their paths are destined to cross in the ruthless struggle to build a fortune and an empire. Fuelled by their all-consuming hatred for one another, over 60 years and three generations, through war, marriage, fortune, and disaster, Kane and Abel battle for the success and triumph that only one man can have.

(Photo: Jeffrey Archer and Mary Archer attend the press night of Photograph 51, 2015, London. Credit: Chris Jackson/Getty Images)

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CrowdScience - What’s the Oldest Living Thing?

Trees transcend human generations – but are they the oldest living things on Earth? CrowdScience listener William from London, UK, got in touch to ask what the oldest tree or other organism on our planet is. Presenter Marnie Chesterton heads out to meet one of our older arboreal cousins to see how we can work out its age - without cutting it down to count the rings. But whilst certain individual trees can live for thousands of years, some that live in colonies can survive for much longer – perhaps up to 80,000 years old. Along the way, Marnie asks what other organisms contend for this title, what the word ‘oldest’ really means, and even ponders whether some creatures could actually be immortal.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Marnie Chesterton Producer: Jen Whyntie

(Image: Ancient Bristlecone Pine Forest. Credit: Getty Images)