The Wuhan lab had worked on the closest known relative of Sars-CoV-2, RaTG13 (which is 96.2% genetically similar), and had done this type of work under Biosafety Level 2, out of a possible four ...

"One hundred percent of plastic marine debris tested have either similar or stronger acoustic target strengths compared with that of whale prey items," the authors report in a paper appearing ...

This program is useful for visualizing approximations of energy band diagrams, and performing back-of-the-envelope calculations of their important parameters. Energy bands can be modeled at varying ...