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What is mental imagery? Brain researchers explain the pictures in your mind and why they’re useful

  • Written by Lynne Gauthier, Associate Professor of Physical Therapy and Kinesiology, UMass Lowell
imageSome people can visualize things perfectly in their mind's eye, while others can't.designer491/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.

Why are some people able to visualize scenarios in their minds, with...

Read more: What is mental imagery? Brain researchers explain the pictures in your mind and why they’re useful

A third of the world’s population lacks internet connectivity − airborne communications stations could change that

  • Written by Mohamed-Slim Alouini, Distinguished Professor of Electrical and Computer Engineering, King Abdullah University of Science and Technology
imageAn experimental aircraft like this solar-powered airship could someday play a role in providing internet access to rural areas or disaster zones.Thales Alenia Space via Wikimedia Commons, CC BY-SA

About one-third of the global population, around 3 billion people, don’t have access to the internet or have poor connections because of infrastruct...

Read more: A third of the world’s population lacks internet connectivity − airborne communications stations...

All politicians change their minds – and have been flip-flopping on positions for hundreds of years

  • Written by Shannon Bow O'Brien, Associate Professor of Instruction, The University of Texas at Austin
imageKamala Harris and Donald Trump are far from the first politicians to be accused of flip-flopping on issues. Francesco Zerilli/Zerillimedia/Science Photo Library

People change their opinions. As my husband says, “I always reserve the right to get smarter,” paraphrasing Konrad Adenauer, the former chancellor of Germany.

But when...

Read more: All politicians change their minds – and have been flip-flopping on positions for hundreds of years

From Kursk to Kursk: Putin’s attempt to project an image as Russia’s ‘protector’ has been punctured throughout his 25 years in power

  • Written by Lena Surzhko Harned, Associate Teaching Professor of Political Science, Penn State

In the quarter-century of Vladimir Putin’s rule – he has served as prime minister or president since August 1999 – the former KGB man has attempted to sell to the public the image of strongman, savior and defender of the Russian people.

Indeed, the “special military operation” in Ukraine, as the Kremlin has described...

Read more: From Kursk to Kursk: Putin’s attempt to project an image as Russia’s ‘protector’ has been...

Urban wildfires disrupt streams and their tiny inhabitants − losing these insects is a warning of bigger water problems

  • Written by Lauren Magliozzi, Researcher in Environmental Engineering, University of Colorado Boulder
imageAsh from fires often washes into streams, where it can wreak havoc on ecosystems.Lauren Magliozzi, CC BY-ND

A tiny, vibrant world thrives along the rocky bottom of most streams. As sunlight filters through the water, mayfly nymphs, no larger than your fingernail, cling to algae-coated cobbles. Their brushlike mouthparts scrape the greenish coating,...

Read more: Urban wildfires disrupt streams and their tiny inhabitants − losing these insects is a warning of...

In domestic violence cases, police are more likely to make arrests when pets are abused, too

  • Written by Lynn Addington, Professor, Department of Justice, Law & Criminology, American University
imagePeople abused by intimate partners regularly cite fear for their pet's safety as a primary reason they do not leave an abusive situation.Sjale/ Illustration: iStock / Getty Images Plus

Nearly two-thirds of U.S. households have at least one pet, and almost all see their pet as a family member.

Unfortunately, in homes where violence occurs, pets can...

Read more: In domestic violence cases, police are more likely to make arrests when pets are abused, too

People with physical and mobility disabilities need to work out, but there are a lot of obstacles in their way

  • Written by Alexandra Jamieson, Research Scientist of Biomedical Technologies, University of Texas at Arlington
imageThe Movin' Mavs, the University of Texas at Arlington's championship-winning wheelchair basketball team, says their gym needs more adaptive exercise equipment. UTA Adaptive Sports Program, CC BY-ND

Although wheelchair users, visually impaired people and others with mobility and physical disabilities need consistent exercise, it’s often hard...

Read more: People with physical and mobility disabilities need to work out, but there are a lot of obstacles...

South Sudan’s long-delayed election will be a landmark moment − but economic decline and political strife put vote at risk

  • Written by Abigail Kabandula, Post-doctoral fellow in global governance and Director of Africa Center, University of Denver
imageSouth Sudanese voters are slated to go to the polls in December. But will they?AP Photo/Sam Mednick

Elections are pivotal milestones in post-conflict countries – and nowhere is voter anticipation felt more keenly than in South Sudan, the world’s youngest nation.

The country, which won independence in 2011 after a long conflict with...

Read more: South Sudan’s long-delayed election will be a landmark moment − but economic decline and political...

Kamala’s kicks, Tim’s lids, and the red ties that bind Trump and Vance – what’s behind the fashion choices of each candidate

  • Written by Deirdre Clemente, Associate Professor of History, University of Nevada, Las Vegas
imageA man holds up a Converse Chuck Taylor – Kamala Harris' favorite footwear – during the vice president's campaign rally on Aug. 9, 2024, in Glendale, Ariz.Andrew Harnik/Getty Images

With Election Day approaching, candidates are courting voters with everything they’ve got: targeted ads, texts, taunts and stump speeches.

As a fashion...

Read more: Kamala’s kicks, Tim’s lids, and the red ties that bind Trump and Vance – what’s behind the fashion...

‘Coconut farmers for Harris,’ influencers and vertical signs – Smithsonian curators’ encounters at the Democratic National Convention

  • Written by Claire Jerry, Political History Curator, Smithsonian Institution
imageVertical signs with key messages are a long-standing tradition at Democratic conventions.Kevin Dietsch/Getty Images

At the 2024 Democratic National Convention alongside politicians and delegates from across the country are political history curators from the Smithsonian’s National Museum of American History, who are collecting what museum...

Read more: ‘Coconut farmers for Harris,’ influencers and vertical signs – Smithsonian curators’ encounters at...

More Articles ...

  1. Polaris Dawn mission to Earth’s orbit will test SpaceX’s capabilities for a commercial space program
  2. 4 ways Wissahickon Valley Park makes Philly more resilient against climate change
  3. The Polaris Dawn mission to Earth’s orbit will test SpaceX’s capabilities for a commercial space program
  4. No, the world isn’t heading toward a new Cold War – it’s closer to the grinding world order collapse of the 1930s
  5. How organized labor shames its traitors − the story of the ‘scab’
  6. US is unlikely to stop giving military aid to Israel − because it benefits from it
  7. What links aging and disease? A growing body of research says it’s a faulty metabolism
  8. Gift card scams generate billions for fraudsters and industry as regulators fail to protect consumers − and how one 83-year-old fell into the ‘fear bubble’
  9. Why gift cards fall into a gap in the 2-tier banking regulation system − and a brief history of why that gap exists
  10. From thoughts to words: How AI deciphers neural signals to help a man with ALS speak
  11. ‘Time poverty’ can keep college students from graduating − especially if they have jobs or children to care for
  12. Italian teenager Carlo Acutis’ upcoming canonization reflects the Vatican’s desire to appeal to a new generation of Catholics
  13. Can a political party get any attention when its rival holds a national convention? Yes, but it’s not easy
  14. How debt and taxes conspired to rob Nairobi’s slum-dwelling youth of the promise of a better life
  15. Treating Nord Stream blasts as a whodunit misses the point – and plays into Russia’s plan to distract and divide
  16. Want to fight gender inequality? A review of data from 118 counties shows that development aid works
  17. Want to fight gender inequality? A review of data from 118 countries shows that development aid works
  18. As human population grows, people and wildlife will share more living spaces around the world
  19. Thwaites Glacier won’t collapse like dominoes as feared, study finds, but that doesn’t mean the ‘Doomsday Glacier’ is stable
  20. Rural voters don’t necessarily love Walz, despite the camo hat and small-town upbringing
  21. Squid have tiny teeth in their suckers − scientists could use their unique properties to make self-healing materials
  22. Space missions are getting more complex − lessons from Amazon and FedEx can inform satellite and spacecraft management in orbit
  23. China leans into using AI − even as the US leads in developing it
  24. America’s Iran policy is a failure − piecemeal deterrence and sanctions can go only so far
  25. Democratic Party’s embrace of organized labor in 2024 elections has long roots that had started to wither
  26. Los Angeles is in a 4-year sprint to deliver a car-free 2028 Olympics
  27. Politicians step up attacks on the teaching of scientific theories in US schools
  28. Do Charli XCX’s and Kid Rock’s endorsements make a difference? 19% of young people admit they might
  29. AI pioneers want bots to replace human teachers – here’s why that’s unlikely
  30. Blood sugar fluctuations after eating play an important role in anxiety and depression
  31. The mystic and the mathematician: What the towering 20th-century thinkers Simone and André Weil can teach today’s math educators
  32. Readers prefer to click on a clear, simple headline − like this one
  33. 75 years ago, the KKK and anti-communists teamed up to violently stop a folk concert in NY
  34. Does Democratic VP candidate Walz swear too damn much?
  35. Sharks are taking a bite out of anglers’ catch in the Gulf of Mexico, but culling isn’t likely to help
  36. Biden administration’s negotiated price cuts for 10 common prescription drugs likely to save Medicare billions, beginning in 2026
  37. Why don’t more politicians retire? A medical anthropologist explains how the US could benefit from a mandatory retirement age
  38. Could we use volcanoes to make electricity?
  39. Ancient Rome had ways to counter the urban heat island effect – how history’s lessons apply to cities today
  40. Astronomers have warned against colonial practices in the space industry − a philosopher of science explains how the industry could explore other planets without exploiting them
  41. Anthropology students present their research in poetry, plays and op-eds in this course
  42. Who is the ‘Laughing Buddha’? A scholar of East Asian Buddhism explains
  43. Banana apocalypse, part 2 – a genomicist explains the tricky genetics of the fungus devastating bananas worldwide
  44. US voters say they’re ready for a woman president − but sexist attitudes still go along with opposition to Harris
  45. Editing fetal genomes is on the horizon − a medical anthropologist explains why ethical discussions with the target communities should happen sooner rather than later
  46. His crayon is purple – but is Harold a Black boy?
  47. Most young voters support Kamala Harris − but that doesn’t guarantee they will show up at the polls
  48. Complicated app settings are a threat to user privacy
  49. West Nile virus season returns − a medical epidemiologist explains how it’s transmitted and how you can avoid it
  50. Hard-to-treat traumas and painful memories may be treatable with EMDR – a trauma therapist explains why it is gaining popularity