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Electric eels inspired the first battery two centuries ago and now point a way to future battery technologies

  • Written by Timothy J. Jorgensen, Director of the Health Physics and Radiation Protection Graduate Program and Professor of Radiation Medicine, Georgetown University
imagePrepare to be stunned by a technology that nature perfected.maradek/iStock via Getty Images

As the world’s need for large amounts of portable energy grows at an ever-increasing pace, many innovators have sought to replace current battery technology with something better.

Italian physicist Alessandro Volta tapped into fundamental...

Read more: Electric eels inspired the first battery two centuries ago and now point a way to future battery...

What does an octopus eat? For a creature with a brain in each arm, whatever's within reach

  • Written by Erin Spencer, Ph.D. Student in Biology, Florida International University
imageDon't call them tentacles: An octopus has eight arms.TheSP4N1SH/iStock via Getty Images Plusimage

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

What does an octopus eat? – Lily, age 4, Maryland

The octopus is one of the coolest animals in...

Read more: What does an octopus eat? For a creature with a brain in each arm, whatever's within reach

Elon Musk is wrong: research shows content rules on Twitter help preserve free speech from bots and other manipulation

  • Written by Filippo Menczer, Professor of Informatics and Computer Science, Indiana University
imageElon Musk claims to champion free speech, but his plans for Twitter could stifle the free exchange of ideas.Karl-Josef Hildenbrand/picture alliance via Getty Images

Elon Musk’s accepted bid to purchase Twitter has triggered a lot of debate about what it means for the future of the social media platform, which plays an important role in...

Read more: Elon Musk is wrong: research shows content rules on Twitter help preserve free speech from bots...

Nonprofit drugmaker Civica Rx is taking aim at the high insulin prices harming people with diabetes

  • Written by Jing Luo, Assistant Professor of Medicine, University of Pittsburgh Health Sciences
imageHigh insulin prices are leaving some people who need the drug without access.Erik McGregor/LightRocket via Getty Images

Doctors have been treating diabetes with insulin since 1922. A century later, about 1 in 5 of the 37 million Americans living with diabetes take this medication – a hormone that helps cells absorb sugar from the blood.

This...

Read more: Nonprofit drugmaker Civica Rx is taking aim at the high insulin prices harming people with diabetes

ADHD in adults is challenging but highly treatable – a clinical psychologist explains

  • Written by Laura E. Knouse, Associate Professor of Psychology, University of Richmond
imageADHD wasn't recognized as a condition that can have profound effects on adults until the 1990s.SIphotography/iStock via Getty Images Plus

When I was a child in the 1980s, the people I knew with attention-deficit/hyperactivity disorder were hyperactive boys who went to the school nurse at lunchtime to get their medicine. Many people assumed that...

Read more: ADHD in adults is challenging but highly treatable – a clinical psychologist explains

Disney hasn't found itself in this much trouble since 1941

  • Written by Thomas Doherty, Professor of American Studies, Brandeis University
imageWalt Disney testified before the House Un-American Activities Committee claiming that communists once 'took over' his studio.Bettmann/Getty Images

The family-friendly, controversy-averse Walt Disney Co. has walked into the buzz saw of the American culture wars, version 2022.

In April, officials at Disney objected to a Florida law prohibiting...

Read more: Disney hasn't found itself in this much trouble since 1941

Florida Republicans' row with Mickey Mouse highlights widening gap between historical BFFs GOP and corporate America

  • Written by M. K. Chin, Assistant Professor of Management, Indiana University
imageFlorida Republicans stripped Disney of its special status because of its criticism of a new law.AP Photo/Ted Shaffrey

There’s a growing rift between corporate America and the GOP – two groups that have long been bedfellows.

The latest incident involves Disney and its decision to speak out against a Florida law that prevents instruction...

Read more: Florida Republicans' row with Mickey Mouse highlights widening gap between historical BFFs GOP and...

Forgotten insurrection clause of 14th Amendment used to force GOP members of Congress to defend their actions on Jan. 6

  • Written by Ronald Sullivan, Professor of Law, Harvard University
imageRepublican Rep. Marjorie Taylor Greene of Georgia speaks outside the U.S. Capitol on April 28, 2022. Win McNamee/Getty Images

Lawyers representing voters in Arizona, Georgia and North Carolina have filed lawsuits alleging that their elected congressional representatives are barred from running for future office based on a little-known provision of...

Read more: Forgotten insurrection clause of 14th Amendment used to force GOP members of Congress to defend...

The Catholic saint who dedicated his life to a leprosy colony in Hawaii – and became an inspiration for HIV/AIDS care

  • Written by Mark Lambert, Teaching Fellow, University of Chicago Divinity School
imageThe headstone of Father Damien, a Catholic saint who was canonized in 2009.Richard A. Cooke III/Corbis Historical via Getty Images

On Jan. 3, 1865, the Kingdom of Hawaii, then a sovereign state, enacted “An Act to Prevent the Spread of Leprosy.” Any person suspected of having the ancient disease – which is mentioned as far back as...

Read more: The Catholic saint who dedicated his life to a leprosy colony in Hawaii – and became an...

Russia may declare war on Ukraine on May 9 – and use it as a reason to double down on attacks

  • Written by Michael A. Allen, Associate Professor of Political Science, Boise State University
imageRussian military cadets rehearse for the Victory Day military parade in St. Petersburg on May 5, 2022.Olga Maltseva/AFP via Getty Images

The Russian government has consistently called its war on Ukraine a “special military operation.”

But on May 9, 2022, Russia may officially declare war on Ukraine, Western officials have warned –...

Read more: Russia may declare war on Ukraine on May 9 – and use it as a reason to double down on attacks

More Articles ...

  1. 4 claves para entender qué es Transnistria y por qué Moldavia podría ser la nueva víctima de Putin
  2. What's the Giving Pledge? A philanthropy scholar explains
  3. 3 ways to make 'belonging' more than a buzzword in higher ed
  4. COVID-19 official counts can miss mild cases – here's how serosurveys that analyze blood for signs of past infection can help
  5. At a popular evangelical tourist site, the Ark Encounter, the image of a 'wrathful God' appeals to millions
  6. What a cathedral and a massive military parade show about Putin's Russia
  7. Ukraine receives weapons support from around the world
  8. Billions spent on overseas counterterrorism would be better spent by involving ex-terrorists
  9. Scientists in Antarctica discover a vast, salty groundwater system under the ice sheet – with implications for sea level rise
  10. Corals and sea anemones turn sunscreen into toxins – understanding how could help save coral reefs
  11. How treaties protecting fossil fuel investors could jeopardize global efforts to save the climate – and cost countries billions
  12. Abortion has been common in the US since the 18th century -- and debate over it started soon after
  13. 'Walking through Europe's door, singing' – How Eurovision helps define Europe's boundaries (and why Ukraine will likely win)
  14. New eye drops can help aging people see better – an optometrist explains how Vuity treats presbyopia
  15. If Roe v. Wade is overturned, there's no guarantee that people can get abortions in liberal states, either
  16. A white librettist wrote an opera about Emmett Till – and some critics are calling for its cancellation
  17. Giving people money with no strings attached is good for their health, dozens of studies indicate
  18. You've likely heard of the brain's gray matter – here's why the white matter is important too
  19. What would it mean to codify Roe into law – and is there any chance of that happening?
  20. Allowing E15 fuel year-round won't increase sales very much, but it's a symbolic victory for corn ethanol advocates
  21. The Southwest is on fire, with iconic deserts and towns at risk – 3 reasons the 2022 fire season is so early and intense
  22. Fed hopes biggest rate hike in 22 years tames inflation without recession or stagflation: 3 essential reads on what it all means
  23. Nanoparticles are the future of medicine – researchers are experimenting with new ways to design tiny particle treatments for cancer
  24. Western river compacts were innovative in the 1920s but couldn't foresee today's water challenges
  25. Some funders are embracing 'trust-based philanthropy' by giving money without lots of obligations
  26. Rural superintendents lament: 'We went from being heroes to villains'
  27. What makes religious relics – like pieces of the 'true cross' and hair of saints – sacred to Christians
  28. Will new vaccines be better at fighting coronavirus variants? 5 questions answered
  29. A boom in fitness trackers isn't leading to a boom in physical activity – men, women, kids and adults in developed countries are all moving less
  30. Wastewater monitoring took off during the COVID-19 pandemic – and here's how it could help head off future outbreaks
  31. PFAS are showing up in children’s stain- and water-resistant products – including those labeled ‘nontoxic’ and ‘green’
  32. Abortion right guaranteed by Roe will be replaced by state power if the Supreme Court adopts the leaked Alito opinion
  33. No, Biden can't just sell off seized Russian yachts and central bank assets to help aid Ukraine – international law and the US Constitution forbid it
  34. What's at stake as Supreme Court appears intent on overturning Roe v. Wade -- 3 essential reads
  35. Universal access to free meals at schools can lead to lower grocery bills and healthier food purchases
  36. Why the Supreme Court rejected Boston's case against raising the Christian flag
  37. Sri Lanka's protests show a fragile unity – for now
  38. Elon Musk's comments about Twitter don't square with the social media platform's reality
  39. CNN+ was just the latest failed attempt of the cable news trailblazer to remain relevant
  40. How Marine Le Pen managed to gain ground with youth voters – and why her success isn't being replicated by the US right
  41. A New Orleans community center rises from its ugly history as a segregated school
  42. Fertility treatment use is on the rise – new legislation could increase protections for donors and families in an industry shrouded in secrecy
  43. Disruptive kindergartners are likely to be bullied later in elementary school
  44. The photographer who fought the Sicilian Mafia for five decades
  45. Satellites over the Amazon capture the choking of the ‘house of God’ by the Belo Monte Dam – they can help find solutions, too
  46. What do tornadoes look like on the inside?
  47. Fed hopes for ‘soft landing’ for the US economy, but history suggests it won’t be able to prevent a recession
  48. American Muslim women are finding a unique religious space at a women-only mosque in Los Angeles
  49. Students lead more public schools to close for Islamic holidays
  50. New Englanders support more offshore wind power – just don’t send it to New York