Christmas
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Physics
The science behind Christmas sweaters: How friction shapes the shape of knitted fabrics
(a) Photograph of jersey knit stitches. (b) Experimental setup. (c) Geometric and numerical model. Credit: arXiv (2024). DOI: 10.48550/arxiv.2404.07811 Through experiments, three physicists from the University of Rennes, Aoyama Gakuin University, and the University of Lyon discovered that it is the friction between the fibers that causes knitted fabric to take on a specific shape. Jérôme Crassou, Samuel Pointcru, and…
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Chemistry
Video: Science prevents Christmas tree fires
Credit: American Chemical Society Each year, Christmas tree fires occur in 160 homes in the United States. They’re hot, fast, dangerous, and preventable. In this video, the ACS Reactions team tests various Christmas tree watering conditions. This includes an internet recipe for fireproofing a Christmas tree with borax, and explores the science behind preventing these fires. With help from the…
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