physics

Credit: Unsplash/CC0 Public Domain A member of President Joe Biden’s administration stopped in the city of Lake Elmo, Minnesota, on May 6 to talk PFAS with local officials, visiting an area that’s been at the forefront of contamination just three weeks after the Biden administration released the first-ever drinking water standards for the so-called “forever” … Read more

Murray’s law in hierarchical structures. Credit: arXiv (2023). DOI: 10.48550/arxiv.2309.16567 The natural vein structure found within leaves—which has inspired the structural design of porous materials that can maximize mass transfer—could unlock improvements in energy storage, catalysis, and sensing thanks to a new twist on a century-old biophysical law. An international team of researchers, led by … Read more

In total, 384 cities, towns and villages in Brazil have been hit, many of which remain cut off from the world. The rains may have abated, but floodwaters continued their assault on southern Brazil Monday, with hundreds of municipalities in ruins amid fears that food and drinking water may soon run out. Since the unprecedented … Read more

by Miguel J. Rodriguez Carrillo with Issam Ahmed in Washington NASA’s Vehicle Assembly building (L) and a screen showing Boeing, Crew Flight Test and Starliner logos are seen after the Starliner crew flight test was scrubbed. The first crewed flight of Boeing’s Starliner spaceship was dramatically called off just two hours before launch after a … Read more

by KeAi Communications Co., Ltd. The biaxial Hopkinson pressure bar system. Credit: Wuxing Wu, Fengqiang Gong, Zong-Xian Zhang Field observations have revealed that highly stressed D-shape tunnels experience sidewall rockburst triggered by impact loads stemming from rock blasting or other mining-related dynamic disturbances. These phenomena can lead to sidewall failure and violent ejection of rock. … Read more

Credit: CC0 Public Domain Young people’s perfectionism is manifested as concern over their competence and fear of making mistakes. A new study among ninth-graders attending lower secondary school in Swedish-speaking areas of Finland identified four perfectionistic profiles with varying associations with students’ psychological well-being. The study was conducted in collaboration between the University of Eastern … Read more

Credit: Pixabay/CC0 Public Domain A recent study at the Hebrew University examines the impact of memorial days in Israel on national unity amidst political polarization. The study led by Dr. Tamar Gur and team, under the guidance of Professor Eran Halperin from the Psychology Department at the Hebrew University of Jerusalem, delves into the profound … Read more

Credit: CC0 Public Domain A quarrel with a co-worker, task overload, a difficult relationship with the boss; each of us reacts slightly differently to problematic events in our professional lives. Such events often result in decreased work motivation and engagement. How important is our own bank of positive resources, called PsyCap, in all this? Are … Read more

Credit: CC0 Public Domain When a family or group of friends sit down to play a familiar game they’ve played many times before, they generally don’t need to refer to the rules—unless someone breaks them. The values of liberal democracy have been transgressed in numerous forms in the last decade, yet many are unfamiliar with … Read more

Texas A&M researchers are designing reflectors that redirect solar power to the moon’s craters. Credit: Texas A&M Engineering Near the moon’s south pole lies a 13-mile wide, 2.5-mile-deep crater known as Shackleton, named for Antarctic explorer Ernest Shackleton. Shackleton—and craters like it—may contain untapped resources that can be accessed with lunar mining. Solar energy is … Read more