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The Conversation

‘Dancing’ raisins − a simple kitchen experiment reveals how objects can extract energy from their environment and come to life

  • Written by Saverio Eric Spagnolie, Professor of Mathematics, University of Wisconsin-Madison
imageSurface bubble growth can lift objects upward against gravity.Saverio Spagnolie

Scientific discovery doesn’t always require a high-tech laboratory or a hefty budget. Many people have a first-rate lab right in their own homes – their kitchen.

The kitchen offers plenty of opportunities to view and explore what physicists call soft matter...

Read more: ‘Dancing’ raisins − a simple kitchen experiment reveals how objects can extract energy from their...

Mary McLeod Bethune, known as the ‘First Lady of Negro America,’ also sought to unify the African diaspora

  • Written by Ashley Robertson Preston, Assistant Professor of History, Howard University
imageEducator Mary McLeod Bethune regularly wrote of her travels abroad.Robert Abbott Sengstacke via Getty Images

When I first landed an internship as an archives technician at the Mary McLeod Bethune Council House-National Historic Site – the D.C. home of the woman who founded Bethune-Cookman University – I didn’t see a strong...

Read more: Mary McLeod Bethune, known as the ‘First Lady of Negro America,’ also sought to unify the African...

Binge drinking is a growing public health crisis − a neurobiologist explains how research on alcohol use disorder has shifted

  • Written by Nikki Crowley, Assistant Professor of Biology, Biomedical Engineering and Pharmacology, Penn State
imageSince Amy Winehouse's death in 2011, professionals have learned a great deal more about alcohol use disorder.Kevin Mazur/WireImage via Getty Images

With the new Amy Winehouse biopic “Back to Black” in U.S. theaters as of May 17, 2024, the late singer’s relationship with alcohol and drugs is under scrutiny again. In July 2011, Wineh...

Read more: Binge drinking is a growing public health crisis − a neurobiologist explains how research on...

The price of rebuilding Ukraine goes up each day − but shirking the bill will cost even more

  • Written by Jeffrey Kucik, Global Fellow at the Wahba Institute for Strategic Competition, Associate Professor at the University of Arizona, University of Arizona
imageMore than two years of war have left swaths of Ukraine in ruins.Pierre Crom/Getty Images

U.S. military assistance is finally on its way to Ukraine after months of being held up in Congress.

Reactions to the US$61 billion spending package, signed into law by President Joe Biden on April 24, 2024, have ranged from applause to indignation.

While few...

Read more: The price of rebuilding Ukraine goes up each day − but shirking the bill will cost even more

Thirsty in paradise: Water crises are a growing problem across the Caribbean islands

  • Written by Farah Nibbs, Assistant Professor of Emergency and Disaster Health Systems, University of Maryland, Baltimore County
imagePublic water shortages have left people scrambling for alternatives on many of the islands, including Cuba.Yamil Lage/AFP via Getty Images

In the popular imagination, the Caribbean is paradise, an exotic place to escape to. But behind the images of balmy beaches and lush hotel grounds lies a crisis, the likes of which its residents have never...

Read more: Thirsty in paradise: Water crises are a growing problem across the Caribbean islands

I’ve spent decades overseeing relief operations around the world, and here’s what’s going wrong in Gaza

  • Written by Raymond Offenheiser, Professor of global affairs, director of the McKenna Center for Human Development and Global Business, University of Notre Dame
imageAid trucks loaded with supplies wait in Arish, Egypt, after a border crossing with Gaza was closed on May 8, 2024. Ali Moustafa/Getty Images

Amid persistent calls from the United States and other countries that Israel needs to make it easier for life-saving aid to reach Palestinians in the Gaza Strip, the Israeli military closed two of the...

Read more: I’ve spent decades overseeing relief operations around the world, and here’s what’s going wrong in...

A jacket, a coin, a letter − relics of Omaha Beach battle tell the story of D-Day 80 years later

  • Written by Frank A. Blazich Jr., Curator of Military History, National Museum of American History, Smithsonian Institution
imageOne of war photographer Robert Capa's images shows a wave of troops arriving on the Normandy beaches on D-Day.Robert Capa via National Museum of American History

Between the villages of Vierville-sur-Mer and Sainte-Honorine-des-Pertes in Normandy, France, is a 5-mile stretch of beach that was once called Côte d’Or, or “golden...

Read more: A jacket, a coin, a letter − relics of Omaha Beach battle tell the story of D-Day 80 years later

How Jason Kelce built his personal brand and became a Philly legend

  • Written by Amy Lavin, Associate Professor of Practice, Fox School of Business and Management, Temple University
imageJason Kelce is sticking with his underdog brand as his post-NFL career takes off.Tim Nwachukwu/Getty Images

Philly icon and former Eagles star Jason Kelce has continued to make headlines since he announced his retirement from the NFL on March 4, 2024.

A few days after Kelce’s announcement, Campbell Soup unveiled its first Legend Edition Chunky...

Read more: How Jason Kelce built his personal brand and became a Philly legend

Sudan’s descent into chaos sets stage for al-Qaida to make a return to historic stronghold

  • Written by Sara Harmouch, Ph.D. candidate in Public Affairs, American University

“Sudan’s moment has come; chaos is our chance to sow the seeds of jihad,” warned Abu Hudhaifa al-Sudani, a high-ranking al-Qaida leader, in an October 2022 manifesto.

His words may have seemed premature at the time, but a year of brutal civil war has now plunged Sudan into the kind of chaos in which terrorist groups thrive. The...

Read more: Sudan’s descent into chaos sets stage for al-Qaida to make a return to historic stronghold

More Articles ...

  1. How cannabis and psilocybin might help some of the 50 million Americans who are experiencing chronic pain
  2. Algorithms help people see and correct their biases, study shows
  3. Engineering mini human hearts to study pregnancy complications and birth defects
  4. Sports gambling creates a windfall, but raises questions of integrity – here are three lessons from historic sports-betting scandals
  5. Bird flu detected in Colorado dairy cattle − a vet explains the risks of the highly pathogenic avian influenza virus
  6. Medicine doesn’t just have ‘conscientious objectors’ − there are ‘conscientious providers,’ too
  7. What are roads made of? A pavement materials engineer explains the science behind the asphalt you drive on
  8. A sex scandal that’s boring the public − and a judge forced to keep Trump focused
  9. Divesting university endowments: Easier demanded than done
  10. Polarization may phase out of American politics as younger generations shift into power
  11. La Niña is coming, raising the chances of a dangerous Atlantic hurricane season – an atmospheric scientist explains this climate phenomenon
  12. Why some people receiving federal benefits don’t consider themselves poor − even though poverty rates have increased since the COVID-19 pandemic
  13. Why US offshore wind power is struggling – the good, the bad and the opportunity
  14. Brain study identifies a cost of caregiving for new fathers
  15. I interviewed moms with 5 or more kids − here’s what I learned about the women who are quietly going against the grain
  16. Commencement isn’t just about awarding degrees – and cancellations leave students disconnected and disillusioned
  17. 5 books to help you better understand today’s campus protests
  18. Pet-owners: watch out for foxtail seed pods that can harm your dog or cat this summer
  19. Section 702 foreign surveillance law lives on, but privacy fight continues
  20. Playing with the kids is important work for chimpanzee mothers
  21. Arizona’s now-repealed abortion ban serves as a cautionary tale for reproductive health care across the US
  22. Justice Sotomayor’s health isn’t the real problem for Democrats − winning elections is
  23. What early 2024 polls are revealing about voters of color and the GOP − and it’s not all about Donald Trump
  24. Exoplanet WASP-69b has a cometlike tail – this unique feature is helping scientists like me learn more about how planets evolve
  25. Everyday life and its variability influenced human evolution at least as much as rare activities like big-game hunting
  26. How 19th-century Spiritualists ‘canceled’ the idea of hell to address social and political concerns
  27. US drone warfare faces questions of legitimacy, study of military chaplains shows
  28. Florida’s school safety dashboard helps parents and teachers address root causes of bullying, fighting and other misbehavior
  29. What America’s first board game can teach us about the aspirations of a young nation
  30. Could Biden stop Netanyahu’s plans? A national security expert looks at Israel’s attack on Rafah
  31. War games risk stirring up troubled waters as Philippines − emboldened by US − squares up to Beijing at sea
  32. As climate change amplifies urban flooding, here’s how communities can become ‘sponge cities’
  33. How to tell if a conspiracy theory is probably false
  34. Future pandemics will have the same human causes as ancient outbreaks − lessons from anthropology can help prevent them
  35. Lung cancer is the deadliest of all cancers, and screening could save many lives − if more people could access it
  36. Voting in unconstitutional districts: US Supreme Court upended decades of precedent in 2022 by allowing voters to vote with gerrymandered maps instead of fixing the congressional districts first
  37. Homeschooled kids face unique college challenges − here are 3 ways they can be overcome
  38. Artists created images of Christ that focused not on historical accuracy but on reflecting different communities − a scholar of religious history explains
  39. 3 reasons the UAW is having success in organizing Southern workers – with two Mercedes plants in Alabama the next face-off
  40. Palestinian writers have long explored the horrors of amputation
  41. Venus is losing water faster than previously thought – here’s what that could mean for the early planet’s habitability
  42. Neediest areas are being shortchanged on government funds − even with programs designed to benefit poor communities
  43. Trump promises to deport all undocumented immigrants, resurrecting a 1950s strategy − but it didn’t work then and is less likely to do so now
  44. Paying caregivers more could boost Nebraska’s economy − new research
  45. Unlicensed teachers now dominate new teacher hires in rural Texas schools
  46. The number of religious ‘nones’ has soared, but not the number of atheists – and as social scientists, we wanted to know why
  47. ‘Hidden mother’ photos don’t erase moms − rather, they reveal the labor and love that support the child
  48. I analyzed 3,356 signs to see how language use is changing in three Latino neighborhoods in Philly
  49. What are nanoplastics? An engineer explains concerns about particles too small to see
  50. Houston’s flood problems offer lessons for cities trying to adapt to a changing climate