by NTNU
We bring you surprising stories of science, history and innovation from 63 Degrees North, the home of the Norwegian University of Science and Technology. Listen as we explore the mysteries of the polar night, the history of Viking raiders, and how geologists and engineers are working to save the planet, one carbon dioxide molecule at a time — and more. Take a journey to Europe's outer edge for fascinating tales and remarkable discoveries.<hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
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April 15, 2025
<p>We may think the Vikings were all the same, but it turns out that Viking violence wasn’t the same everywhere. New research shows that Norwegian Vikings were buried with 50 times more weapons—and had a lot more injuries—than their neighbours in Denmark. And there were other dramatic differences that researchers were able to uncover, even after the passage of more than a thousand years.</p><p>This episode digs into what those differences might mean. Why were Norwegian Vikings more violent? Was something going on in their society? And were swords really the handguns of Viking society?</p><p>My guests on today's show were <a href="https://www.ntnu.no/ansatte/lisa.strand" rel="noopener noreferrer" target="_blank">Lisa Mariann Strand</a>, a PhD research fellow at NTNU, <a href="https://www.khm.uio.no/english/about/organisation/archaeology-department/staff/janbi/" rel="noopener noreferrer" target="_blank">Jan Bill</a>, an archaeologist at the University of Oslo and <a href="https://www.usf.edu/arts-sciences/departments/sociology/people/faculty/david-jacobson.aspx" rel="noopener noreferrer" target="_blank">David Jacobson</a>, a sociologist at the University of South Florida.</p><p>You can read about Bill's project studying the Gokstad ship <a href="https://www.khm.uio.no/english/research/previous-projects/gokstad/index.html" rel="noopener noreferrer" target="_blank">here</a>, and you can see picture and description of the ship on the webpages of the Museum of the Viking Age <a href="https://www.vikingtidsmuseet.no/english/the-collection/index.html" rel="noopener noreferrer" target="_blank">here</a>.</p><p>Here are some links to the articles we discussed in the show:</p><ul><li>Jan Bill, David Jacobson, Susanne Nagel, Lisa Mariann Strand (2024)</li></ul><p><a href="https://www.sciencedirect.com/science/article/pii/S0278416524000369" rel="noopener noreferrer" target="_blank">Violence as a lens to Viking societies: A comparison of Norway and Denmark</a>,</p><p> Journal of Anthropological Archaeology,Volume 75, 2024, 101605, ISSN 0278-4165, https://doi.org/10.1016/j.jaa.2024.101605</p><ul><li>Lisa Mariann Strand, Sam Leggett, Birgitte Skar<a href="https://www.sciencedirect.com/science/article/pii/S2589004222014973)" rel="noopener noreferrer" target="_blank"> Multi-isotope variation reveals social complexity in Viking Age Norway</a>, iScience, Volume 25, Issue 10, 2022, 105225,</li></ul><p>ISSN 2589-0042, https://doi.org/10.1016/j.isci.2022.105225.</p><ul><li>Margaryan, A., Lawson, D.J., Sikora, M. et al. <a href="https://www.nature.com/articles/s41586-020-2688-8" rel="noopener noreferrer" target="_blank">Population genomics of the Viking world.</a> Nature <strong>585</strong>, 390–396 (2020). https://doi.org/10.1038/s41586-020-2688-8</li></ul><p>Questions? Comments? You can contact me at [email protected]</p><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
February 14, 2025
<p>Jimmy Chaciga, a PhD research fellow at Makerere University in Uganda, thinks he has what it will take to get Ugandan households to adopt solar-powered cookers. First, cookers need to be simple to operate. They need to be cheap. They need to be able to cook once the sun has gone down.</p><p>But most of all, they need to be able to cook beans.</p><p>"If you can cook beans, you can cook anything," he says.</p><p>Armed with two drums, a lot of insulation, some solar panels and a dream, Chaciga is trying to bring his cooker to Ugandan households and institutions that need it the most.</p><p>Chaciga is one of a group of African researchers working with NTNU's Ole Jørgen Nydal under projects funded by NORAD, the Norwegian Agency for International Development, and the University Network on PhD Programmes in Energy Technology (UNET), co-funded by the EU's Erasmus + programme.</p><p>Here's the situation: After decades of research and funding to help households in developing countries shift away from firewood, charcoal and other biomass, 75% continue to rely on these resources for cooking. In sub-Saharan Africa, that's 1.2 billion people – mainly women.</p><p>Clearly, cooking with wood is bad. It wastes women and children's time as they scavenge scarce wood to burn.</p><p>It contributes to deforestation. It's a huge problem that seems like it should be solvable with enough smart engineering, yet it persists.</p><p>Today's episode explores the successes and challenges researchers have faced in tackling this issue.</p><p>My guests are<a href="https://www.ntnu.edu/uneterasmus/partners/mak" rel="noopener noreferrer" target="_blank"> Jimmy Chaciga</a>, <a href="https://natural-sciences.nwu.ac.za/physics/ashmore-mawire" rel="noopener noreferrer" target="_blank">Ashmore Mawire </a>and <a href="https://www.ntnu.edu/employees/ole.j.nydal" rel="noopener noreferrer" target="_blank">Ole Jørgen Nydal</a>.</p><p>You can see videos and documents from the International Energy Agency's Clean Cooking Summit from May 2024 <a href="https://www.iea.org/events/summit-on-clean-cooking-in-africa" rel="noopener noreferrer" target="_blank">here</a>.</p><p>Here are some publications describing some of the work in today's show:</p><ul><li>Chaciga, Jimmy; Nyeinga, Karidewa; Okello, Denis; Nydal, Ole Jørgen. (2024) <a href="https://doi.org/10.1016/j.est.2023.110163" rel="noopener noreferrer" target="_blank">Design and experimental analysis on a single tank energy storage system integrated with a cooking unit using funnel system.</a> <a href="http://www.elsevier.com/" rel="noopener noreferrer" target="_blank">Journal of Energy Storage</a></li><li>Nydal, Ole Jørgen. (2023) <a href="https://hdl.handle.net/11250/3113626" rel="noopener noreferrer" target="_blank">Heat Storage for Cooking: A Discussion on Requirements and Concepts.</a> <a href="https://www.mdpi.com/" rel="noopener noreferrer" target="_blank">Energies</a></li><li><a href="https://norwegianscitechnews.com/2024/06/cooking-with-solar-ovens-in-sub-saharan-africa/" rel="noopener noreferrer" target="_blank">Cooking with solar ovens in sub-Saharan Africa</a>, Norwegian SciTech News</li></ul><p>Here are some background documents that describe the problem over time:</p><ul><li>Joseph Elasu, et al.(2023) <a href="https://www.sciencedirect.com/science/article/pii/S2667095X2300003X" rel="noopener noreferrer" target="_blank">Drivers of household transition to clean energy fuels: A systematic review of evidence,</a></li></ul><p>Renewable and Sustainable Energy Transition.</p><ul><li>World Bank. (2011). <a href="https://documents1.worldbank.org/curated/en/732691468177236006/pdf/632170WP0House00Box0361508B0PUBLIC0.pdf" rel="noopener noreferrer" target="_blank">Household Cookstoves, Environment, Health, and Climate Change: A New Look at an Old Problem. </a>Washington, DC: World Bank.</li></ul><p>Ideas? Feedback? Email me at [email protected]</p><p> </p><br /><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
November 26, 2024
Nobel laureates May-Britt Moser and Edvard Moser recount their groundbreaking discovery of brain cells that function like a GPS, shedding light on Alzheimer's disease and spatial navigation.
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