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Science
“#Decoding material wear with supercomputers” A small piece of metal is simulated on a computer—atom by atom. Credit: TU Wien Wear and friction are crucial issues in many industrial sectors: What happens when one surface slides across another? Which changes must be expected in the material? What does this mean for the durability and safety…
“#Revisiting energy flow in photosynthetic plant cells” Malate flow during C3 photosynthesis. Credit: The University of Hong Kong By developing innovative methods to visualize energy changes in subcellular compartments in live plants, the team of Dr. Boon Leong Lim, Associate Professor of the School of Biological Sciences of The University of Hong Kong, after showing…
“#Face mask construction, materials matter for containing coughing, sneezing droplets” With the stitched quilted cotton mask, droplets traveled 2.5 inches. Credit: Florida Atlantic University, College of Engineering and Computer Science Currently, there are no specific guidelines on the most effective materials and designs for facemasks to minimize the spread of droplets from coughs or sneezes…
“#Respiratory droplet motion, evaporation and spread of COVID-19-type pandemics” Flow diagram outlining the interconnections of the model developed. Credit: Swetaprovo Chaudhuri, Saptarshi Basu, Prasenjit Kabi, Vishnu R Unni and Abhishek Saha It is well established that the SARS-CoV-2 virus responsible for the COVID-19 disease is transmitted via respiratory droplets that infected people eject when they…
“#Countries group into clusters as COVID-19 outbreak spreads” LEFT: Heat maps track the changing cluster membership of the fifteen most severely impacted countries with respect to numbers of COVID-19 cases. Cluster membership depicts COVID-19 severity relative to the rest of the world. Clusters are ordered with 1 being the worst impacted at any time. Darker…
“#Spider silk can create lenses useful for biological imaging” An image of the spider used in the study and the dome lens generated on its dragline silk. Credit: Cheng-Yang Liu Spiders—what are they good for? The answer, it turns out, is more than just insect control. Spider silk is useful for a variety of biomedical…
“#Novel species of fungi discovered on bat carcasses in the limestone caves of southwest China” Karst caves are home to bats that provide important ecosystem services. Credit: KIB A subterranean expedition led by Prof. Xu Jianchu from the Kunming Institute of Botany of the Chinese Academy of Sciences highlights the importance of understanding the ways…
“#Hungriest of black holes among the most massive in the universe” Credit: NASA/JPL-Caltech We now know just how massive the fastest-growing black hole in the Universe actually is, as well as how much it eats, thanks to new research led by The Australian National University (ANU). It is 34 billion times the mass of our…
“#Scientists develop novel predictable multi-nucleotide deletion systems in plants” Figure: AIFD systems induce precise and predictable multi-nucleotide deletions in plants (a) Schematic representation of the AFID system. (b) Structures of AFIDs 1–3 and eAFID-3. (c) The proportions of predictable deletions generated by Cas9 and AFID-3. (d) Comparison of predictable deletion types between AFID-3 and eAFID-3….
“#Explainer: A theoretical cosmologist describes how large black holes really are, and the ‘point of no return’” The first photo of a black hole, taken in 2019, shows light bending around a black hole that is 6.5 billion times larger than the sun. Credit: Event Horizon Telescope Collaboration Black holes are among the most fascinating…