Flash Forward is a show about possible (and not so possible) future scenarios. What would the warranty on a sex robot look like? How would diplomacy work if we couldn’t lie? Could there ever be a fecal transplant black market? (Complicated, it wouldn’t, and yes, respectively, in case you’re curious.) Hosted and produced by award winning science journalist Rose Eveleth, each episode combines audio drama and journalism to go deep on potential tomorrows, and uncovers what those futures might re ...
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Plumeworld ocean and snowball Earth
Manage episode 457125919 series 1451457
Content provided by PNAS. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by PNAS or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
How Snowball Earth melted
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Shuhai Xiao explores how the Earth emerged from a planetwide glaciation called Snowball Earth.
In this episode, we cover: •[00:00] Introduction •[00:48] Geobiologist Shuhai Xiao introduces us to Snowball Earth. •[01:58] Xiao introduces the “plumeworld” hypothesis that describes the end of Snowball Earth. •[03:41] He explains how lithium isotopes in rocks can confirm the plumeworld hypothesis. •[05:54] Xiao explains why dolostone deposits in China were suitable for studying this hypothesis. •[06:53] He talks about the results of the study. •[07:39] He talks about the implications of the study results. •[08:26] Caveats and limitations of the study. •[10:06] Conclusion.
About Our Guests:
Shuhai Xiao Professor Virginia Tech
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2407419121
Follow us on Spotify, Apple Podcasts, YouTube, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
409 episodes
Share
Manage episode 457125919 series 1451457
Content provided by PNAS. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by PNAS or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
How Snowball Earth melted
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Shuhai Xiao explores how the Earth emerged from a planetwide glaciation called Snowball Earth.
In this episode, we cover: •[00:00] Introduction •[00:48] Geobiologist Shuhai Xiao introduces us to Snowball Earth. •[01:58] Xiao introduces the “plumeworld” hypothesis that describes the end of Snowball Earth. •[03:41] He explains how lithium isotopes in rocks can confirm the plumeworld hypothesis. •[05:54] Xiao explains why dolostone deposits in China were suitable for studying this hypothesis. •[06:53] He talks about the results of the study. •[07:39] He talks about the implications of the study results. •[08:26] Caveats and limitations of the study. •[10:06] Conclusion.
About Our Guests:
Shuhai Xiao Professor Virginia Tech
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2407419121
Follow us on Spotify, Apple Podcasts, YouTube, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
409 episodes
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Similar to PNAS Science Sessions
Flash Forward is a show about possible (and not so possible) future scenarios. What would the warranty on a sex robot look like? How would diplomacy work if we couldn’t lie? Could there ever be a fecal transplant black market? (Complicated, it wouldn’t, and yes, respectively, in case you’re curious.) Hosted and produced by award winning science journalist Rose Eveleth, each episode combines audio drama and journalism to go deep on potential tomorrows, and uncovers what those futures might re ...
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continue reading
Come dive into one of the curiously delightful conversations overheard at National Geographic’s headquarters, as we follow explorers, photographers, and scientists to the edges of our big, weird, beautiful world. Hosted by Peter Gwin and Amy Briggs.
…
continue reading
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…
continue reading
Science Friction's latest series is: Cooked. We dig into food science pickles. Why are studies showing that ice cream could be good for you? Do we really need as many electrolytes as the internet says? And why are people feeling good on the carnivore diet? Nutrition and food scientist Dr Emma Beckett takes us through what the evidence says about foods like meat, ice cream and potatoes — and unpicks why nutrition studies can be so conflicting and confusing. All six episodes of Cooked are avai ...
…
continue reading
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…
continue reading
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continue reading
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