What makes things sticky? Listener Mitch from the USA began wondering while he was taking down some very sticky wallpaper. Our world would quite literally fall apart without adhesives. They are almost everywhere – in our buildings, in our cars and in our smartphones. But how do they hold things together?
To find out, presenter Marnie Chesterton visits a luthier, Anette Fajardo, who uses animal glues every day in her job making violins. These glues have been used since the ancient Egyptians –but adhesives are much older than that. Marnie speaks to archaeologist Dr Geeske Langejans from Delft University of Technology about prehistoric glues made from birch bark, dated to 200,000 years ago. She goes to see a chemist, Prof Steven Abbott, who helps her understand why anything actually sticks to anything else. And she speaks to physicist Dr Ivan Vera-Marun at the University of Manchester, about the nanotechnologists using adhesion at tiny scales to make materials of the future.
Presented by Marnie Chesterton. Produced by Anand Jagatia for BBC World Service
This episode was originally broadcast on 2nd October 2020
Peter Woit is a theoretical physicist, mathematician, critic of string theory, and author of the popular science blog Not Even Wrong. Please support this podcast by checking out our sponsors:
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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(07:22) – Physics vs mathematics
(21:51) – Beauty of mathematics
(43:42) – String theory
(1:12:15) – Theory of everything
(1:32:23) – Twistor theory and spinors
(1:48:50) – Nobel Prize likelihood for theory of everything
(1:52:36) – Simulating physics
(1:56:07) – Sci-Fi, aliens and space
(2:05:19) – Responsibility of scientists
Eccentric economist and brilliant thinker Tyler Cowen answers our questions about the confusing state of the economy. We talk about: inflation, the stock market, “The Great Resignation”, billionaires, income inequality, crypto, Texas vs San Francisco, the metaverse, good food, working remotely, what states like Virginia swinging back toward the right might mean for national politics and more.
As part of CoinDesk’s Future of Money week, they asked some of crypto’s biggest brains for their predictions on the future of money. In today’s episode, NLW goes one by one through those predictions, saying whether he agrees or disagrees and why.
NYDIG, the institutional-grade platform for bitcoin, is making it possible for thousands of banks who have trusted relationships with hundreds of millions of customers, to offer Bitcoin. Learn more at NYDIG.com/NLW.
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“The Breakdown” is written, produced by and features Nathaniel Whittemore aka NLW, with editing by Rob Mitchell, research by Scott Hill and additional production support by Eleanor Pahl. Adam B. Levine is our executive producer and our theme music is “Countdown” by Neon Beach. The music you heard today behind our sponsor is “Dark Crazed Cap” by Isaac Joel. Image credit: VallarieE/E+/Getty Images, modified by CoinDesk.
The unemployment rate falls but job growth disappoints. Salesforce reports better-than-expected profits and promotes Bret Taylor to co-CEO. Square changes its name to Block. Jack Dorsey steps down as CEO of Twitter. And Docusign plummets on weak guidance. Motley Fool analysts Maria Gallagher and Ron Gross discuss those stories and weigh in on the latest from Ulta Beauty, Okta, Allbirds, and Chipotle. Our analysts share two stocks on their radar: DoorDash and NextEra Energy. Plus, toy industry analyst Jackie Breyer talks holiday toys, supply chain, and bumper cars for toddlers!
On this episode of The Federalist Radio Hour, New York Times bestselling author Homer Hickam joins Culture Editor Emily Jashinsky to discuss his new book "Don't Blow Yourself Up: The Further True Adventures and Travails of the Rocket Boy of October Sky" and recount some of his life's most exciting adventures.
Verbal arts, explains Karin Barber, emeritus professor of African cultural anthropology at the University of Birmingham, are “any form of words that have been composed in order to attract attention or invite interpretation which is intended to be repeatable in some way.” They are, she continues, central to all sorts of social processes, “just as much a part of people’s lives as kinship or economic activities.” In this Social Science Bites podcast, Barber offers a specific case study of the application of the verbal arts by examining in depth some of the genres common in the Yoruba-speaking areas of Western Africa. Barber said there are more than 30 million people who speak Yoruba, with the largest number in southwestern Nigeria, where much of Barber’s own scholarship has taken place. She describes the study of Yoruba as a large field in academe, with “hundreds and hundreds” of Yoruba scholars building it up.
Barber herself grew up in Yorkshire and did her first degree, in English, at Cambridge University. She next studied social anthropology at University College London and after a stint in Uganda was told that if she really wanted to pursue her examination of African theater she should go to Nigeria. Her Ph.D. – based on 37 months of field work studying oral poetic performance in everyday life in a Yoruba town - came from Nigeria’s University of Ifẹ (now Ọbafẹmi Awolọwọ University). Barber then spent the next seven years as a lecturer in the Department of African Languages and Literatures at the University of Ifẹ, where courses were taught in Yoruba.
Barber’s scholarship has resulted in several notable books and monographs. The 1991 monograph I Could Speak Until Tomorrow: Oriki, Women and the Past in a Yoruba Town won the Amaury Talbot Prize for African Anthropology; 2000’s The Generation of Plays: Yoruba Popular Life in Theatre won the Herskovits Award of the African Studies Association; The Anthropology of Texts, Persons and Publics from 2007 won the Susanne K. Langer Award of the Media Ecology Association; and 2012’s Print Culture and the First Yoruba Novel won the Paul Hair Prize of the African Studies Association and the Association for the Preservation and Publication of African Historical Sources.
In this interview, she tells host David Edmonds about two particular genres of Yoruba verbal arts: ifa, or divination poetry, and oríkì, translated as praise poetry. “Divination is how people govern and manage their lives,” she explains, “so this poetry is really central to how people analyze what’s happening to them and take steps to make sure that things work out as they wish.”
Praise poetry, “strings and strings of epithets hailing the subject’s qualities,” meanwhile, “celebrates and commemorates and highlights the essential characteristics of a person or god or a family or town or an animal. Somehow it evokes the inner essence, the inner properties, and activates them, galvanizes them.” This genre, she details, has changed over the years, emphasizing wealth in the 19th century but more personal qualities and achievements today. “Changing power dynamics are revealed, not necessarily in what the verbal arts specifically say, but in the way they are formed, in the way they are transmitted, who reads them or who listens to them.”
And so verbal arts matter in a social science context. “All verbal arts are produced in an economic and institutional context. You could ask, why did this new genre appear in this context, this particular moment in history. What caused people to devise this way of commenting on society and formulating ides in this particular way? It’s because of the prevailing interplay of social forces.”
For her work, Barber has received a number of high honors, ranging from a Yoruba chieftaincy title - she is the Iyamoye (“mother who has insights”) of Okuku – to appointment as Commander of the Order of the British Empire in the 2012 and Dame Commander of the Order of the British Empire earlier this year.
Houston authorities knew Travis Scott's annual Astroworld festival was going to be a huge deal, and spent a great deal of time planning for any possible contingency. However, this planning wasn't able to prevent tragic deaths and multiple injuries as the crowd descended into pandemonium. And, even before the dust settled, thousands of people began circulating strange claims on social media, arguing that this was not actually a concert, but, instead, a massive occult sacrifice. So what exactly happened, and why are so many people making these claims?
The Biden administration is improvising its way through a new Covid panic, projecting impotency along the way. Speaking of impotency, Russia is sending signals indicating that another invasion of Ukraine is imminent, and the White House’s response so far has consisted of sternly worded letters. Source
On Nov. 2, Chinese tennis star Peng Shuai published a letter on her verified social media account that accused a former top Chinese government official of sexual assault. Then suddenly, she disappeared. But it’s not just people with name recognition who are disappearing in the country. Human rights group Safeguard Defenders estimates that more than 45,000 people were subjected to a form of secret detention since President Xi Jinping assumed power in 2013.
Today, we speak with L.A. Times Beijing Bureau Chief Alice Su, who has been investigating this phenomenon. And we’ll also hear from a writer who studies feminism in China.