Ingrid Fadelli

Design of harmonized Na+ coordination in NFPP cathode. Credit: Li et al.

Energy engineers worldwide are working on various new technologies that could help to limit greenhouse gas emissions on Earth and address climate change. One proposed alternative to polluting fossil fuels, such as petrol, diesel and natural gas, is hydrogen.

Dinosaurs are estimated to have roamed Earth for over 165 million years, gradually evolving over time to survive in changing environments. Among the many fascinating groups of dinosaurs known to have lived on our planet are alvarezsauroids.

Glasses are non-crystalline but solid states of matter in which molecules and atoms are not arranged into a regular crystal lattice, but rather in a disordered pattern. Glassy materials are widely used in various settings, for instance, in the synthesis of pharmaceuticals and the development of electronics or optical devices.

Black holes, regions in space where gravity is so strong that nothing can escape, have been widely studied over the past decades, due to their unique and intriguing properties. Einstein's theory of general relativity predicts that black holes obey a set of rules, known as the laws of black hole mechanics. These rules somewhat resemble the laws of thermodynamics, which delineate how energy, heat, and entropy behave in our universe.

Humans and other animals can learn new skills and behaviors from others they interact with. This process, referred to as social learning, has been widely investigated in the past, particularly in the context of responses to threatening stimuli or social norms.

Quantum materials, materials with properties that are governed by the laws of quantum mechanics describing many-body interactions, have proved promising for the development of various advanced technologies. Many of these materials undergo so-called phase transitions, switching between different physical states that alter how electrons flow through them.

Recent technological advances and the introduction of new digital media platforms have dramatically changed how people learn and source information about topics that interest them. Some recent studies have found that while browsing online or scrolling down social media platforms, users tend to spend under one minute on average on individual videos.

Aviation is one of the sectors that contributes most to greenhouse gas emissions and climate change on Earth. One proposed strategy for mitigating or counterbalancing the effects of these emissions is to substitute existing jet fuel with a more sustainable alternative made from plastic waste, another source of pollution on Earth.

Many animals, including humans, rely on their eyes to detect changes in their surroundings. The eyes of vertebrates, animals with a backbone or a similar supporting structure, contain a transparent structure (i.e., the lens) that focuses incoming light onto a layer of light-sensitive cells, known as the retina. Cells in the retina then convert light into signals that are sent to the brain.