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- Scientific American Recent news and articles from the world of space exploration and astronomy include updates on the discovery of new exoplanets, the exploration of the Moon and other planets, and the impact of space exploration on society. Videos related to space exploration and astronomy include videos of rocket launches, interviews with astronauts, and documentaries about the history of space exploration. Scientific American also offers a range of opinion pieces and articles about the impact of space exploration on society, and the potential for space exploration to shape the future of humanity.
Research conducted at the Department of Biology, University of Padova, has identified critical genomic milestones in the evolution of Homo sapiens, including key chromosomal rearrangements and specific gene variants that contributed to the development of current modern human traits.
Under certain conditions, a crack in an elastomer propagates in a (sideways) direction parallel to the loading direction rather than perpendicularly in the (forward) direction of the notch. Then, the crack arrests and the material ahead can be further deformed enabling giant stretchability.