Dong Han Seo, of the CSIRO, holds a flask of water taken from Sydney Harbour, which has been purified to a drinkable standard thanks to a graphene-based filter
Credit: CSIRO
Among graphene’s long list of superpowers, filtering water may be one of the most directly beneficial. Now a team of Australian scientists has demonstrated how effective a specially-designed form of graphene can be at purifying water with a pretty challenging test: the filter made water from Sydney Harbour safe to drink in one step.
The newest graphene water filter system was made using a form of the material dubbed “Graphair,” which was […]
When Dustin Gordon arrived at the University of Iowa, he found himself taking lecture classes with more people in them than his entire hometown of Sharpsburg, Iowa, population 89.
Credit: Ben Smith/The Hechinger Report
When Dustin Gordon’s high school invited juniors and seniors to meet with recruiters from colleges and universities, a handful of students showed up.
A few were serious about the prospect of continuing their educations, he said, “But I think some of them went just to get out of class.”
In his sparsely settled community in the agricultural countryside of southern Iowa, “there’s just no motivation for people to go” to college, says Gordon, who’s now a senior at the University of Iowa.
“When they’re ready to be done with high school, they think, ‘That’s all the school I need, and I’m just going to go and find a job.’ ” That job, Gordon explains, might be on the family farm or at the egg-packaging plant or the factory that makes pulleys and conveyor belts, or driving trucks that haul grain.
Variations of […]
One reason for this difference is the abundance of guns in America. According to a 2007 survey, the US led the world in the number of civilian-owned firearms with 88.8 guns per 100 people, while second-place Yemen fell far behind at 54.8 guns per 100 people. And the research, compiled by the Harvard School of Public Health’s Injury Control Research Center, has repeatedly found a link between a higher number of guns and higher levels of gun violence.
A common explanation for this is that America has some of the most lax gun laws in the world. But are US gun laws really that different from those of other developed nations?
I looked into that question, breaking down gun laws in several developed countries based on media reports, studies on gun violence, national databases, the Law Center to Prevent Gun Violence’s analysis of American gun laws, and the Law Library of Congress’s reviews of gun laws around the world.
I found the US really does have the most relaxed gun control measures in comparison with other developed nations.
Based on the research, that’s a significant […]
Broward County Florida Emergency Room
Credit: WLRN
In the aftermath of Wednesday’s mass shooting at a Florida high school, the emergency medicine community is once again thinking about how to improve disaster preparedness as it waits for more details to be made available on how peers responded to the tragedy that left 17 dead.
That’s not to say that medical professionals failed in Broward County: a semiautomatic AR-15 assault rifle causes “a crazy amount of damage in a human body,” said Michael Redlener, MD, of Mount Sinai St. Luke’s and Roosevelt Hospitals in New York City.
Still, in the past decade, the emergency medicine community has been working to overhaul responses in order to keep up with the tide of mass shootings. Notably, the American College of Surgeons and government groups created the Hartford Consensusafter the 2012 shooting at Sandy Hook Elementary School in Newtown, Conn., and its recommendations for responding to an active shooter event remain the national standard.
“All of us have revised approaches to supply distribution, triage, and […]
Remote Viewing the Year 2060
