History of the Champagne vineyards revealed
IMAGE: Pressing residues from the Place de la Libération site, Troyes (Aube). The plant remains have been preserved in water because they came from the base of a well. Grape seeds,… view more Credit: Véronique ZECH-MATTERNE/AASPE Although the reputation of Champagne is well established, the history of Champagne wines and vineyards is poorly documented. However, a […]
Conductive nature in crystal structures revealed at magnification of 10 million times
IMAGE: University of Minnesota Professor K. Andre Mkhoyan and his team used analytical scanning transmission electron microscopy (STEM), which combines imaging with spectroscopy, to observe metallic properties in the perovskite crystal… view more Credit: Mkhoyan Group, University of Minnesota In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made […]
Hidden secrets revealed in microscopic images of ancient artifacts
Highly magnified views of archaeological artifacts display their extraordinary hidden beauty and reveal intriguing clues about how they were crafted and used long ago. For example, a 17th-century Persian textile contains fibers of silk thread that were individually wrapped with thin strips of metal. And the microstructure of a needle from Cyprus retains the touch […]
Conductive nature in crystal structures revealed at magnification of 10 million times — ScienceDaily
In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made a discovery that blends the best of two sought-after qualities for touchscreens and smart windows — transparency and conductivity. The researchers are the first to observe metallic lines in a perovskite crystal. Perovskites abound in the Earth’s center, […]
Conductive nature in crystal structures revealed at magnification of 10 million times
University of Minnesota Professor K. Andre Mkhoyan and his team used analytical scanning transmission electron microscopy (STEM), which combines imaging with spectroscopy, to observe metallic properties in the perovskite crystal barium stannate (BaSnO3). The atomic-resolution STEM image, with a BaSnO3 crystal structure (on the left), shows an irregular arrangement of atoms identified as the metallic […]
Largest canyon in the solar system revealed in stunning new images
About 87 million miles (140 million kilometers) above the Grand Canyon, an even larger, grander abyss cuts through the gut of the Red Planet. Known as Valles Marineris, this system of deep, vast canyons runs more than 2,500 miles (4,000 km) along the Martian equator, spanning nearly a quarter of the planet’s circumference. This gash […]
Pandemic has revealed our dependence on migrant workers
Major geopolitical changes have influenced labour migration in Europe. The fall of communism, EU expansion, globalization and the dismantling of national borders have enabled extensive labour migration, says Professor Rye. Photo: Johan Fredrik Rye The coronavirus has taught us an important lesson. “The pandemic has shaken the entire system. Migrant workers weren’t allowed in. Production […]
Detailed structure of ribosomes in nerve cells revealed — ScienceDaily
Protein synthesis is a finely tuned process in the cell by macromolecules known as ribosomes. Which regulators are responsible for controlling protein synthesis in the brain, and how do they exert their control on the ribosome? To address this question, a team of researchers from Charité — Universitätsmedizin Berlin studied the structure of the brain’s […]
Ionic defect landscape in perovskite solar cells revealed — ScienceDaily
The group of so-called metal halide perovskites as materials has revolutionized the field of photovoltaics in recent years. Generally speaking, metal halide perovskites are crystalline materials that follow the structure ABX3, with varying composition. Here, A, B, and X can represent a combination of different organic and inorganic ions. These materials have a number of […]
Ionic defect landscape in perovskite solar cells revealed
Artistic representation of an ionic defect landscape in the perovskites. Credit: Prof. Dr. Yana Vaynzof (TU Dresden/cfaed) The group of so-called metal halide perovskites as materials has revolutionized the field of photovoltaics in recent years. Generally speaking, metal halide perovskites are crystalline materials that follow the structure ABX3, with varying composition. Here, A, B, and […]
