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What is the best mask for COVID-19? A mechanical engineer explains the science after 2 years of testing masks in his lab

  • Written by Christian L'Orange, Assistant Research Professor of Mechanical Engineering, Colorado State University
imageNot all masks offer the same level of protection for you and those around you.Martin Barth/EyeEm via Getty Images

The Centers for Disease Control and Prevention has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on Jan. 14, 2022. The update states that cloth face...

Read more: What is the best mask for COVID-19? A mechanical engineer explains the science after 2 years of...

How this cycle of redistricting is making gerrymandered congressional districts even safer and undermining majority rule

  • Written by Marjorie Hershey, Professor Emeritus of Political Science, Indiana University
imageState Sen. Joseph Thomas, D-Yazoo City, holds a copy of the proposed congressional redistricting map during debate over redistricting at the Mississippi State Capitol in Jackson, Jan. 12, 2022. AP Photo/Rogelio V. Solis

In a democracy, voters choose their political leaders. In a democracy that permits gerrymandering – when state legislatures...

Read more: How this cycle of redistricting is making gerrymandered congressional districts even safer and...

How 5G puts airplanes at risk – an electrical engineer explains

  • Written by Prasenjit Mitra, Professor of Information Sciences and Technology, Penn State
imageThe FAA raised concerns that new, full-speed 5G cellphone services near airports could interfere with aircraft operations.Bernal Saborio/Flickr, CC BY-SA

New high-speed cellphone services have raised concerns of interference with aircraft operations, particularly as aircraft are landing at airports. The Federal Aviation Administration has assured...

Read more: How 5G puts airplanes at risk – an electrical engineer explains

The US military presence in Europe has been declining for 30 years – the current crisis in Ukraine may reverse that trend

  • Written by Michael A. Allen, Associate Professor of Political Science, Boise State University
imageOver there, over there (again).Omar Marques/Getty Images

Up to 8,500 U.S. troops could soon be heading to Eastern Europe – bolstering an American military presence in the continent that has been in decline since the end of the Cold War.

News of the possible deployment, announced on Jan. 24, 2022, by the Pentagon, comes as Russia and the United...

Read more: The US military presence in Europe has been declining for 30 years – the current crisis in Ukraine...

From odor to action – how smells are processed in the brain and influence behavior

  • Written by John Crimaldi, Professor of Civil, Environmental and Architectural Engineering, University of Colorado Boulder
imageThe compact olfactory system provides a more accessible way to study the brain as a whole.Esther Kok/EyeEm via Getty Images

A dog raises its nose in the air before chasing after a scent. A mosquito zigzags back and forth before it lands on your arm for its next meal. What these behaviors have in common is that they help these animals...

Read more: From odor to action – how smells are processed in the brain and influence behavior

Life's stages are changing -- we need new terms and new ideas to describe how adults develop and grow

  • Written by Jeffrey Arnett, Senior Research Scholar, Department of Psychology, Clark University
imageThese days, people in their 20s are figuring out who they are as adults, rather than experiencing "extended adolescence." Hinterhaus Productions/DigitalVision via Getty Images

What image comes to mind when you think of a person in their 20s?

Do you imagine an adult stressed out by the weight of many new responsibilities in family and work roles?

Or...

Read more: Life's stages are changing -- we need new terms and new ideas to describe how adults develop and...

Offshore wind farms could help capture carbon from air and store it long-term – using energy that would otherwise go to waste

  • Written by David Goldberg, Lamont Research Professor, Columbia University
imageThe U.S. had seven operating offshore wind turbines with 42 megawatts of capacity in 2021. The Biden administration's goal is 30,000 megawatts by 2030.AP Photo/Michael Dwyer

Off the Massachusetts and New York coasts, developers are preparing to build the United States’ first federally approvedutility-scale offshore wind farms – 74...

Read more: Offshore wind farms could help capture carbon from air and store it long-term – using energy that...

The 13th Amendment's fatal flaw created modern-day convict slavery

  • Written by Kwasi Konadu, Professor in Africana & Latin American Studies, Colgate University
imageIn this rare photograph taken in 2000, prisoners at the Ferguson Unit in Texas are seen working in the prison's cotton fields. Photo by Andrew Lichtenstein/Corbis via Getty Images

The 13th Amendment is having a moment of reckoning. Considered one of the crowning achievements of American democracy, the Civil War-era constitutional amendment set...

Read more: The 13th Amendment's fatal flaw created modern-day convict slavery

Offshore wind farms could help capture carbon from air and store it long-term, saving money – a geophysicist explains how

  • Written by David Goldberg, Lamont Research Professor, Columbia University
imageThe U.S. had seven operating offshore wind turbines with 42 megawatts of capacity in 2021. The Biden administration's goal is 30,000 megawatts by 2030.AP Photo/Michael Dwyer

Off the Massachusetts and New York coasts, developers are preparing to build the United States’ first federally approvedutility-scale offshore wind farms – 74...

Read more: Offshore wind farms could help capture carbon from air and store it long-term, saving money – a...

Opioid overdose: A bioethicist explains why restricting supply may not be the right solution

  • Written by Travis N. Rieder, Director of the Master of Bioethics degree program at the Berman Institute of Bioethics, Johns Hopkins University
imageWhat's the best way to solve America's opioid overdose crisis?BackyardProduction/ iStock via Getty images

Year after year, America’s drug overdose crisis is worsening.

In the 12-month period ending in June 2021, the most recent period for which there is reliable data, more than 101,000 people died from drug overdose in the U.S., – an...

Read more: Opioid overdose: A bioethicist explains why restricting supply may not be the right solution

More Articles ...

  1. Yizker bikher books commemorate Holocaust deaths – but also celebrate Jewish communities' life
  2. How mRNA and DNA vaccines could soon treat cancers, HIV, autoimmune disorders and genetic diseases
  3. What's a 990 form? A charity accounting expert explains
  4. More women in a STEM field leads people to label it as a 'soft science,' according to new research
  5. How many bones do penguins have?
  6. Kazakhstan's internet shutdown is the latest episode in an ominous trend: digital authoritarianism
  7. Schools join the fight against human trafficking
  8. Tonga eruption was so intense, it caused the atmosphere to ring like a bell
  9. Thich Nhat Hanh, who worked for decades to teach mindfulness, approached death in that same spirit
  10. Why 30 out of 32 NFL head coaches are white -- behind the NFL's abysmal record on diversity
  11. Why most NFL head coaches are white -- behind the NFL's abysmal record on diversity
  12. Pope Benedict accused of mishandling sex abuse cases: 4 essential reads
  13. Ukraine got a signed commitment in 1994 to ensure its security – but can the US and allies stop Putin's aggression now?
  14. The sunsetting of the child tax credit expansion could leave many families without enough food on the table
  15. Alpha then delta and now omicron – 6 questions answered as COVID-19 cases once again surge across the globe
  16. Conflicts between nursing home residents are often chalked up to dementia – the real problem is inadequate care and neglect
  17. About 1 in 3 child care workers are going hungry
  18. 5 things to know about why Russia might invade Ukraine – and why the US is involved
  19. What is bioengineered food? An agriculture expert explains
  20. How the Biden administration is making gains in an uphill battle against Russian hackers
  21. A year after Navalny's return, Putin remains atop a changed Russia
  22. Supreme Court rejects Trump's blocking of Jan. 6 docs: 3 key takeaways from ruling
  23. How antisemitic conspiracy theories contributed to the recent hostage-taking at the Texas synagogue
  24. The better you are at math, the more money seems to influence your satisfaction
  25. Stressed out at college? Here are five essential reads on how to take better care of your mental health
  26. Overruling Roe may not be conservatives' best strategy – Brown v. Board of Education shows how Supreme Court can uphold precedent while gutting its meaning
  27. ShakeAlert earthquake warnings can give people time to protect themselves – but so far, few have actually done so
  28. Pain and anxiety are linked to breathing in mouse brains – suggesting a potential target to prevent opioid overdose deaths
  29. The Electoral Count Act of 1887 is showing its age – here's how to help Congress certify a presidential election with more certainty
  30. Beavers offer lessons about managing water in a changing climate, whether the challenge is drought or floods
  31. Why getting Congress to fund help for US children in poverty is so hard to do
  32. How the pandemic's unequal toll on people of color underlines US health inequities – and why solving them is so critical
  33. CORBEVAX, a new patent-free COVID-19 vaccine, could be a pandemic game changer globally
  34. What 13th-century Christian theologian Thomas Aquinas can teach us about hope in times of despair
  35. What causes a tsunami? An ocean scientist explains the physics of these destructive waves
  36. Batteries get hyped, but pumped hydro provides the vast majority of long-term energy storage essential for renewable power – here’s how it works
  37. State efforts to close the K-12 digital divide may come up short
  38. The omicron variant is deepening severe staffing shortages in medical laboratories across the US
  39. Microsoft purchase of Activision Blizzard won't clean up gamer culture overnight: 5 essential reads about sexual harassment and discrimination in gaming and tech
  40. Yes, it's easier to get birth control than it was in the 1970s – but women still need abortion care
  41. Taliban 2.0 aren't so different from the first regime, after all
  42. More than masks and critical race theory – 3 tasks you should be prepared to do before you run for school board
  43. Sperm donation is largely unregulated, but that could soon change as lawsuits multiply
  44. Why massive new youth sports facilities may not lead to the tourist boom many communities hope for when they build them
  45. Fact-checking may be important, but it won't help Americans learn to disagree better
  46. These machines scrub greenhouse gases from the air – an inventor of direct air capture technology shows how it works
  47. How 'mechanical trees' pull carbon dioxide from the air and lock it away – an inventor of direct air capture tech explains
  48. Why do plants grow straight?
  49. Building machines that work for everyone – how diversity of test subjects is a technology blind spot, and what to do about it
  50. Remembering Martin Luther King Jr.: 5 things I've learned curating the MLK Collection at Morehouse College