Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 million stars.
To unite humanity.
Before we landed on the Moon, in the early days of the Cold War, Project Orion contemplated using Nuclear Bombs to power spaceships to new worlds and stars. More than half a century later, new technologies may see this concept reintroduced bigger, better, and safer. Could the most terrifying weapon of the 20th Century become the Great Hope of the 21st?
Start Forging New Worlds: https://www.worldanvil.com/isaac-arthur.
Researchers at the Technical University of Darmstadt and the Helmholtz Center Dresden-Rossendorf have developed flexible robot wings that are moved by magnetic fields. Inspired by the efficiency and adaptability of the wings of the monarch butterfly, they enable precise movements without electronics or batteries.
This bio-inspired development could fundamentally change environmental monitoring, rescue operations and biomedical applications.
Monarch butterflies are known for their outstanding endurance and adaptability. Every year, they cover thousands of kilometers on their migrations between Canada and Mexico. The key to this feat lies in their unique wings, which allow the insects to fly energy-efficiently through a combination of active movement and passive bending.
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Participants underwent fMRI while completing a monetary incentive delay task. This task is commonly used to assess reward system activation, as it separates the anticipation of a reward from the receipt of the reward. During the task, participants viewed visual cues signaling whether they could win money or not. They were then required to press a button quickly in response to a target, with feedback indicating whether they had succeeded in earning the reward.
The study focused on two key brain regions: the ventral striatum, which is involved in reward anticipation, and the orbitofrontal cortex, which processes reward outcomes. Psychological resilience was measured using the Connor-Davidson Resilience Scale, while PTSD severity was assessed with the Clinician-Administered PTSD Scale. Metabolic syndrome was diagnosed based on established clinical criteria, including elevated blood pressure, abnormal cholesterol or triglyceride levels, elevated blood sugar, and increased waist circumference.
The researchers observed distinct patterns of reward system activation in individuals with PTSD, influenced by the severity of depressive symptoms. Among PTSD participants with lower depression severity, activation in the ventral striatum during reward anticipation was reduced, while activation in the orbitofrontal cortex during reward outcomes was heightened.
Attosecond science, honored with the 2023 Nobel Prize in Physics, is transforming our understanding of how electrons move in atoms, molecules, and solids. An attosecond—equivalent to a billionth of a billionth of a second—enables “slow-motion” visualization of natural processes occurring at extraordinary speeds.
However, until now, most attosecond experiments have been limited to spectroscopic measurements due to the constraints of attosecond light pulse sources.
Using the powerful X-ray Free Electron Laser (FEL) at SLAC National Laboratory in California, the Hamburg team studied how ultrashort pulses interact with nanoparticles. They uncovered a previously unexplored phenomenon: transient ion resonances that enhance image brightness.
Researchers at the University of Maine have managed to 3D print an organic building material with the strength of steel.
The SM2ART Nfloor is printed as a single piece in about 30 hours, which is a third faster than building something comparable by hand according to TechXplore.
The nice thing about this set-up is that these panels can be printed in bulk off-site and get shipped to the construction area. Since there are already channels in the floor for electrical and plumbing, the only other thing that needs to be applied by hand is soundproofing and floor covering.
Infineon receives first Common Criteria EAL6 certification for implementing a post-quantum cryptography algorithm in a security controller.
When 3D printing was first introduced in 1985, it marked a major turning point for the manufacturing industry. In addition to being cheaper than traditional manufacturing technologies, it also promised the ability to customize designs and make prototypes on demand. While its technology is still considered relatively new, there has been an accelerating demand for 3D printing methods across sectors in the past decade, ranging from aerospace and defense to medicine.
Yet, Associate Professor Pablo Valdivia y Alvarado from the Singapore University of Technology and Design (SUTD) believes that there are still ways to go before 3D printing can achieve its full potential. In traditional 3D printing, a nozzle is used to print the material layer by layer, and the path that the nozzle takes is known as the toolpath.
However, layer-by-layer printing is incompatible for use with materials like silicone, epoxies, and urethanes that are slow-curing and take more time to harden. These types of materials are often used to create soft mechanical metamaterials which, in turn, are used for lightweight, nature-inspired structures, such as lattices and web structures. Deposition-based processes in 3D printing, such as direct ink writing, would be able to work with these materials to create such structures, but these suffer from non-optimized toolpaths.