Scientists at Northwestern University in Evanston, Illinois have developed a hydrogel integrated with zirconium-based robust metal-organic frameworks (MOFs) that rapidly degrades organophosphate-based nerve agents used in chemical warfare. Unlike existing powdered MOF adsorbents, this hydrogel composite does not require added water and may be easily scaled up for use in protective masks or clothing. The work appears July 14 in the journal Chem Catalysis.
Firearm purchases and firearm violence surged during the first five months of the COVID-19 pandemic. Purchases increased 85% and interpersonal firearm injuries, including homicides and nonfatal assault injuries, increased 27%. Approximately 9.3 million firearms were purchased during this period.
Like two superheroes finally joining forces, Sandia's Z machine -- generator of the world's most powerful electrical pulses -- and Lawrence Livermore's National Ignition Facility -- the planet's most energetic laser source -- have detailed gold and platinum responses to pressures so extreme that their atomic structures momentarily distorted like images in a fun-house mirror.Until now there has been no way to accurately calibrate these pressures , the first step to controlling them.
New research in AGU's journal Geophysical Research Letters used a system for monitoring nuclear tests to track the infrasound from 1,001 rocket launches, identifying the distinctive sounds from seven different types of rockets. In some cases, like the Space Shuttle and the Falcon 9, the researchers were also able to identify the various stages of the rockets' journey (audio available).
After looking for just one-twentieth of a second, experts in camouflage breaking can accurately detect not only that something is hidden in a scene, but precisely identify the camouflaged target, a skill set that can mean the difference between life and death in warfare and the wild, investigators report.
A new study shows that two-thirds of Californians don't know about a law designed to prevent a person at risk of hurting themselves or others from possessing or purchasing firearms or ammunition. More than 80% of survey participants were supportive once they read about this law.
This survey study in California assesses what the public knows about extreme risk protection orders and if people are willing to use them to prevent firearm-related harm, both in general and when a family member is at risk, and if not, why not. The orders temporarily suspend firearm and ammunition access by individuals a judge has deemed to be at substantial risk of harming themselves or others.
Scientists have created a cybersecurity technology called Shadow Figment that is designed to lure hackers into an artificial world, then stop them from doing damage by feeding them illusory tidbits of success. The aim is to sequester bad actors by captivating them with an attractive--but imaginary--world. The technology is aimed at protecting physical targets--infrastructure such as buildings, the electric grid, water and sewage systems, and pipelines.
Reanalysis of the prehistoric cemetery Jebel Sahaba (Sudan), one of the earliest sites showing human warfare (13,400 years ago), suggests that hunter-fisher-gatherers engaged in repeated, smaller conflicts. The findings are published in Scientific Reports.
Scanning technology aimed at detecting small amounts of nuclear materials was unveiled by scientists in Sweden today, with the hope of preventing acts of nuclear terrorism.