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−6 D

Trump v Leo: the war of words over a just war

After Donald Trump took to social media to lambast Pope Leo's criticism of the Iran war, the pontiff told journalists "I'm not afraid of the Trump administration". Part of the war of words between Trump and Leo is a question over whether the Iran war is a just one. Just war theory, first articulated by St Augustine in the fifth century, outlines the church’s moral guidelines for political and military leaders to consider before choosing to go to war. But it’s not static, and the church’s own position has become more restrictive in recent years. In this episode, Gerard Powers, the director of Catholic Peace Building Studies at the University of Notre Dame in Indiana, explains how the Catholic church’s just war tradition evolved and the influence it’s had on US military thinking. Powers was a senior advisor on international policy for the U.S. Conference of Catholic Bishops during the Iraq war, and was involved in efforts to persuade the Bush administration not to invade. He sets out the difficulty now facing Catholics serving in the US military, whose archbishop has now spoken out against the war they’re being asked to fight This episode was produced by Katie Flood and Mend Mariwany and the executive producer was Gemma Ware. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation.

−6 d

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27 min
2023-03-29

Quantum mechanics: does objective reality exist?

It is hard to shake the intuition that there's a real and objective physical world out there. If I see an umbrella on top of a shelf, I assume you do too. And if I don't look at the umbrella, I expect it to remain there as long as nobody steals it. But the theory of quantum mechanics, which governs the micro-world of atoms and particles, threatens this commonsense view. Featuring Chiara Marletto, Research Fellow of Physics, and Christopher Timpson, Professor of Philosophy of Physics, both at the University of Oxford, and Marcus Huber, Professor of Physics, TU Wien. This episode is presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: 'QBism': quantum mechanics is not an objective description of reality – it reveals a world of genuine free will

2023-03-29

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53 min
23 APR.

Israel’s history shapes how it wages war

In around ten minutes on April 8, the Israeli military hit more than 100 targets across Lebanon. Israel called the attack Operation Eternal Darkness and said it struck Hezbollah command and control centres. The Lebanese government said at least 300 people were killed and 1,000 injured. Israel has a powerful and lethal army, and it’s been defending itself against attacks from Hamas, Hezbollah and Iran. But why has it chosen such brutal military aggression? One historian, Yaron Peleg, believes the answer to this question lies in the early days of Zionism in the 19th century, when many Jews who arrived in Palestine were fleeing antisemitism in Europe. In defiance, they began a cultural revolution, emphasising military strength and honouring Biblical Jewish heroes. But in the wake of the Holocaust, Peleg, who is a professor of modern Hebrew studies at the University of Cambridge in the UK, thinks Israel’s view of itself began to change. He tracks how he sees Israel’s self‑image changed from self‑reliance to aggressive militarism, and how that history helps to explain the way it wages war today. This episode was produced by Mend Mariwany and the executive producer was Gemma Ware. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Mentioned in this episode: Voices of the South

23 apr.

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29 min
12 MARS

Mystery covid methane spike solved

Six years ago, as countries around the world went into COVID lockdowns, the air got cleaner. Factories slowed down, roads emptied and aeroplanes were grounded. As people stayed home, the world burned fewer fossil fuels and so carbon dioxide emissions dropped. But something else was also happening in the atmosphere. Levels of methane, an extremely potent greenhouse gas that warms the planet even faster than CO2, rose faster in 2020 than at any point since records began in the 1980s. And methane levels kept on rising during 2021 and 2022. Ever since, scientists have been trying to piece together what caused this sudden mysterious increase in methane. Now, they think they have the answer – and it was partly due to COVID lockdowns. In this episode, we speak to Philippe Ciais, a researcher at the Laboratory for Environmental and Climate Science at Université Paris-Saclay in France, and one of the authors of a new study in the journal Science about the spike in methane levels, who explains how they solved the mystery. This episode was written and produced by Mend Mariwany and Katie Flood and Gemma Ware was the executive producer. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Pourquoi les émissions de méthane ont-elles bondi de 2020 à 2023 ? Une étude permet enfin de répondreWhy fixing methane leaks from the oil and gas industry can be a climate game-changer – one that pays for itselfCoronavirus lockdowns cut global carbon emissions by an estimated 7% – what happens now?Methane emissions are at new highs. It could put us on a dangerous climate path Mentioned in this episode: The Making of an Autocrat Search "The Conversation Weekly" for our new series: The Making of an Autocrat. Is America watching its democracy unravel in real time? In The Making of an Autocrat from The Conversation, six of the world’s pre-eminant scholars reveal the recipe for authoritarian rule. From capturing a party, to controlling the military, Donald Trump is borrowing from the playbook of strongmen thoughout history. This is the story of how democracies falter — and what might happen next. Voices of the South

12 mars

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24 min
16 APR.

How former insider Péter Magyar ousted Hungary’s Viktor Orbán

For 16 years, Viktor Orbán built an illiberal democracy in Hungary. Orbán and his Fidesz party managed to take control of many of Hungary's levers of power, from the judiciary to state-owned media, and weakened the institutions that could keep them accountable. Now, his regime has been ended by a former Fidesz insider, Péter Magyar, who managed to unite Hungarians to secure a two-third majority in the country's parliament. So how did Peter Magyar manage to beat his former boss? And what does Magyar's victory mean for the European Union, where Orbán was a belligerent, pro-Russian voice at the leaders' table. We speak to Zsolt Enyedi, professor of political science at the Central European University and an expert in Hungarian politics. This episode was produced by Mend Mariwany and Katie Flood. Gemma Ware was the host and executive producer. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. He exposed corruption and walked across Hungary. Now Péter Magyar has defeated a powerful state machineWhat Viktor Orbán’s election loss means for Putin, Trump and the rise of right-wing populismViktor Orbán’s election loss shows the limits of his propaganda machine Mentioned in this episode: Voices of the South

16 apr.

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31 min
2023-03-22

Is there a multiverse?

Interest in the multiverse theory, suggesting that our universe is just one of many, has spiked since the movie Everything Everywhere All At Once was released. The film follows Evelyn Wang on her journey to connect with versions of herself in parallel universes to stop the destruction of the multiverse. The multiverse idea has long been an inspiration for science fiction writers. But does it have any basis in science? And if so, is it a concept we could ever test experimentally? Featuring Andrew Pontzen, professor of Cosmology at University College London, Katie Mack, Hawking chair in cosmology and science communication at the Perimeter Institute for Theoretical Physics, and Sabine Hossenfelder, research fellow of physics at the Frankfurt Institute for Advanced Studies. This episode is presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: The multiverse: how we're tackling the challenges facing the theoryCurious Kids: how likely is it that there are parallel universes and other Earths?The multiverse: our universe is suspiciously unlikely to exist – unless it is one of many

2023-03-22

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41 min
2023-03-08

Is time an illusion?

Without a sense of time, leading us from cradle to grave, our lives would make little sense. But on the most fundamental level, physicists aren't sure whether the sort of time we experience exists at all. We talk to three experts and find out if time could potentially be moving backwards as well as forwards. Featuring Sean Carroll, Homewood professor of natural philosophy at Johns Hopkins University, Emily Adlam, postdoctoral associate of the philosophy of physics at Western University and Natalia Ares, Royal Society university research fellow at the University of Oxford. This episode was presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: Quantum mechanics: how the future might influence the pastFour misconceptions about quantum physics

2023-03-08

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44 min
9 APR.

The pseudoscientific scale looksmaxxers use to rate each other

If you have teenagers in your life, they’ll probably have heard of the PSL scale. Or at least the language associated with it. Chad. Stacy. Normie. Subhuman. The PSL scale is a pseudoscientific attractiveness rating system used by looksmaxxers, men in a part of the manosphere who can go to extreme methods to change their appearance. The roots of this rating system lie in misogynistic online forums used by incels or involuntarily celibates, but now it’s all over social media. So how did the language of incels, and this one way of quantifying attractiveness and beauty, go so mainstream? In this episode, we speak to Jordan Foster, an associate professor of sociology at MacEwan University in Alberta, Canada, who researches social media, beauty and masculinity. He explains the origins of the PSL scale, where it fits into the manosphere, and how some looksmaxxing influencers are making money off it. This episode was written and produced by Katie Flood and Gemma Ware was the executive producer. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. What parents need to know to talk to their children about the manosphereHow ‘looksmaxxing’ self-improvement apps are marketing misogyny to young menMen can get out of the manosphere. Here’s what former incels say about why they leftFrom gym to jawline: What looksmaxxing says about modern masculinity

9 apr.

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30 min
19 MARS

How the US cloned Iran's drones

The day after the US began bombing Iran, US Central Command confirmed it had used a new, cheap type of kamikaze drone called a Lucas for the first time in a combat operation. These drones were made in America, but their roots actually lie in Iran – they are reverse engineered copies of an Iranian drone called a Shahed that the Russians have also been using to bomb Ukraine. In this episode, PhD researcher and military expert Arun Dawson at King's College London explains how the Iranians developed the Shaheds, why the US decided to copy them, and what role these low-cost drones might play in the future of warfare. This episode was written and produced by Mend Mariwany and Gemma Ware was the executive producer. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Not just Patriot interceptors: A defense expert explains the various weapons US and allies use to defend against missiles and dronesDrones over Ukraine: What the war means for the future of remotely piloted aircraft in combatIran war shows how AI speeds up military ‘kill chains’The US is using repurposed Iranian drone technology to attack Iran – a military expert explains why Mentioned in this episode: The Making of an Autocrat Search "The Conversation Weekly" for our new series: The Making of an Autocrat. Is America watching its democracy unravel in real time? In The Making of an Autocrat from The Conversation, six of the world’s pre-eminant scholars reveal the recipe for authoritarian rule. From capturing a party, to controlling the military, Donald Trump is borrowing from the playbook of strongmen thoughout history. This is the story of how democracies falter — and what might happen next.

19 mars

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28 min
2023-04-12

Theory of everything: do we really need one?

The quest for a theory of everything – explaining all the forces and particles in the universe – is arguably the holy grail of physics. While each of our main theories of physics works extraordinarily well, they also clash with each other. But do we really need a theory of everything? And are we anywhere near achieving one? Featuring Vlatko Vedral, a professor of physics at the University of Oxford and Chanda Prescod-Weinstein, an assistant professor in physics and astronomy and core faculty in women's and gender studies at the University Of New Hampshire. This episode is presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: The standard model of particle physics may be broken – an expert explains

2023-04-12

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57 min

Listen to experts explain the world around us and tell the stories behind brand new research. Podcasts from The Conversation, an independent source of news and views, sourced from the academic and research community. Shows in English, French and Bahasa Indonesia. Free to listen.

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