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Why do different countries have different electric outlet plugs?

  • Written by Theodore J. Kury, Director of Energy Studies, University of Florida
imageIt doesn't fit! AndreyPopov/iStock via Getty Imagesimage

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.

Why do different countries have different electric outlet plugs? – Evie H., age 9, Seattle, Washington

You find yourself in an airport...

Read more: Why do different countries have different electric outlet plugs?

New antidepressants can lift depression and suicidal thoughts fast, but don’t expect magic cures

  • Written by Nicholas Mischel, Assistant Professor of Psychiatry and Behavioral Neurosciences; Director, Interventional Psychiatry and Neuromodulation Research Program, Wayne State University
imageAlleviating major depression for the long term involves more than just drugs.Rafa Elias via Getty Images

Depression is the most common cause of disability in the world. Chances are high that you or someone you know will experience a period when depression gets in the way of work, social life or family life. Nearly two in three people with...

Read more: New antidepressants can lift depression and suicidal thoughts fast, but don’t expect magic cures

If I have allergies, should I get the coronavirus vaccine? An expert answers this and other questions

  • Written by Mona Hanna-Attisha, Professor of Medicine, Michigan State University
imageSandra Lindsay, left, a nurse at Long Island Jewish Medical Center, is inoculated with the COVID-19 vaccine by Dr. Michelle Chester. Mark Lennihan/Pool via Getty Images

Editor’s Note: With a coronavirus vaccination effort now underway, you might have questions about what this means for you and your family. If you do, send them to The...

Read more: If I have allergies, should I get the coronavirus vaccine? An expert answers this and other...

International Statistic of the Year: Race for a COVID-19 vaccine

  • Written by Liberty Vittert, Professor of the Practice of Data Science, Washington University in St Louis
imageOn Dec. 8, 2020, the first members of the public were given doses of a coronavirus vaccine.AP Photo/Frank Augstein, PoolimageCC BY-ND

Scientists in China published the complete genetic sequence of SARS-CoV-2 on Jan. 10, 2020. On Dec. 8, 2020, health officials in London began administering an effective coronavirus vaccine to the public. The global...

Read more: International Statistic of the Year: Race for a COVID-19 vaccine

Granny's on Instagram! In the COVID-19 era, older adults see time differently and are doing better than younger people

  • Written by Marcia G. Ory, Regents and Distinguished Professor of Environmental and Occupational Health, Texas A&M University
imageMany older adults are learning new digital skills to help them socialize virtually. Eva-Katalin/Getty Images

Time in the era of COVID-19 has taken on new meaning. “Blursday” is the new time word of the year – where every day seems the same when staying home and restricting socializing and work.

As a public health and aging expert a...

Read more: Granny's on Instagram! In the COVID-19 era, older adults see time differently and are doing better...

In Trump election fraud cases, federal judges upheld the rule of law – but that's not enough to fix US politics

  • Written by Charles Gardner Geyh, John F. Kimberling Professor of Law, Maurer School of Law, Indiana University
imageRudy Giuliani, lawyer for President Donald Trump, speaks on Nov. 19 at a news conference about lawsuits related to the presidential election. Sarah Silbiger for The Washington Post via Getty Images

A healthy constitutional culture, in which the people and their leaders respect the authority of their Constitution, requires a baseline of trust in the...

Read more: In Trump election fraud cases, federal judges upheld the rule of law – but that's not enough to...

Why Facebook antitrust case relies so heavily on Mark Zuckerberg's emails

  • Written by Rebecca Haw Allensworth, Professor of Law, Vanderbilt University
imageMark Zuckerberg's own words are key evidence in the FTC lawsuit against Facebook. AP Images/Olivier Matthys

Facebook CEO Mark Zuckerberg’s own words play a starring role in the government’s case to break up his social network.

“It is better to buy than compete,” he allegedly wrote in an email in 2008, according to the...

Read more: Why Facebook antitrust case relies so heavily on Mark Zuckerberg's emails

When families of murder victims speak at death penalty trials, their anguish may make sentencing less fair

  • Written by Austin Sarat, Associate Provost and Associate Dean of the Faculty and Cromwell Professor of Jurisprudence and Political Science, Amherst College
imageFour of the 10 federal prisoners executed this year: Wesley Purkey, killed July 16; Dustin Honken, killed July 17; Brandon Bernard, killed Dec. 10; and Alfred Bourgeois, killed Dec. 11. In some cases, survivors of their victims addressed the court.AP Photo

The Trump administration is spending its final months authorizing executions. Ten federal...

Read more: When families of murder victims speak at death penalty trials, their anguish may make sentencing...

What you need to know about this year's winter solstice and the great conjunction

  • Written by William Teets, Acting Director and Astronomer, Dyer Observatory, Vanderbilt University

Editor’s note: Dr. William Teets is the director of Vanderbilt University’s Dyer Observatory. In this interview, he explains what does and doesn’t happen during the winter solstice on Dec. 21. Another cosmic phenomenon is also going to occur on the same day called “the great conjunction,” where Saturn and Jupiter,...

Read more: What you need to know about this year's winter solstice and the great conjunction

More Articles ...

  1. Here's why Christmas movies are so appealing this holiday season
  2. Llamas are having a moment in the US, but they've been icons in South America for millennia
  3. FDA authorized first over-the-counter COVID-19 test – useful but not a game changer
  4. The top scientific breakthrough for 2020 was understanding SARS-CoV-2 and how it causes COVID-19 – and then developing multiple vaccines
  5. Why retired generals rarely lead the Pentagon
  6. As heavenly bodies converge, many ask: Is the Star of Bethlehem making a comeback?
  7. 10 reasons why Anthony Fauci was ready to be the face of the US pandemic response
  8. Why the Puritans cracked down on celebrating Christmas
  9. Cuba redobla el acoso a quienes piden libertades creativas después de diálogo 'inédito' con artistas
  10. Black candidates can win in swing districts
  11. Wildfire smoke changes dramatically as it ages, and that matters for downwind air quality – here's what we learned flying through smoke plumes
  12. President Trump's use of the authoritarian playbook will have lasting consequences
  13. Cuba cracks down on artists who demanded creative freedoms after 'unprecedented' government negotiations
  14. US nonprofits raised $2.5 billion on Giving Tuesday in 2020
  15. 4 signs that food pantries improve the diets of low-income people
  16. 5 ways MacKenzie Scott’s $5.8 billion commitment to social and economic justice is a model for other donors
  17. Museum specimens could help fight the next pandemic – why preserving collections is crucial to future scientific discoveries
  18. Americans aren't getting enough to eat during the coronavirus pandemic – here's what's happening in Los Angeles County
  19. K-12 schools need to take cyberattacks more seriously
  20. The reality of Black men's love lives and marriages is very different than what's usually shown on TV – I spent years actually talking to them
  21. Why being stuck at home – and unable to hang out in cafes and bars – drains our creativity
  22. Companies accused of crimes get more digital privacy rights than people under new Trump policy
  23. COVID-19 means a lot more work for families of children with disabilities, but schools can help
  24. Will going out in the cold give you a cold?
  25. Was Jesus really born in Bethlehem? Why the Gospels disagree over the circumstances of Christ's birth
  26. The coronavirus vaccine: A doctor answers 5 questions
  27. Racial stereotypes drive students of color away from STEM, but many still persist
  28. What vaccine distribution planners can learn from Amazon and Walmart
  29. Virgin births from parthenogenesis: How females from some species can reproduce without males
  30. COVID-19 further exposes inequalities in the global financial system
  31. Armenians displaced from Nagorno-Karabakh fear their medieval churches will be destroyed
  32. Ancient Greek desire to resolve civil strife resonates today – but Athenian justice would be a 'bitter pill' in modern America
  33. It takes a lot of energy for machines to learn – here's why AI is so power-hungry
  34. Plastic pipes are polluting drinking water systems after wildfires – it's a risk in urban fires, too
  35. Pardon me? An ethicist's guide to what is proper when it comes to presidential pardons
  36. On the first day of Christmas...teachers got a legal headache over blurring the line between church and state
  37. Who is doing all those COVID-19 tests? Why you should care about medical laboratory professionals
  38. A hospital that prescribes free nutritious food to families who need more than medical care
  39. Puerto Rico wants statehood – but only Congress can make it the 51st state in the United States
  40. Why getting back to 'normal' doesn't have to involve police in schools
  41. W.E.B. Du Bois embraced science to fight racism as editor of NAACP's magazine The Crisis
  42. Taking fish out of fish feed can make aquaculture a more sustainable food source
  43. Mermaids aren't real – but they've fascinated people around the world for ages
  44. My university will be getting COVID-19 vaccines soon – here's how my team will get doses into arms
  45. Masks and mandates: How individual rights and government regulation are both necessary for a free society
  46. From the White House to ancient Athens: Hypocrisy is no match for partisanship
  47. Biden's chance to revive US tradition of inserting ethics in foreign policy
  48. What is a neural network? A computer scientist explains
  49. Why do so few clergy serve in Congress?
  50. Arecibo telescope's fall is indicative of global divide around funding science infrastructure