Wed, 26 April 2017
We appreciate your support on https://www.patreon.com/MinuteEarth Getting wet isn’t REALLY what makes wool shrink; it merely exacerbates the friction between the wool fibers, which is stronger in one direction than another, so when agitated in the washer or dryer, they migrate in relation to each other in a process called “felting.” To learn more about this topic, start your googling with these keywords: ___________________________________________ Credits (and Twitter handles): _________________________________________ Like our videos? Also, say hello on: And find us on itunes: https://goo.gl/sfwS6n If you liked this week’s video, we think you might also like: ___________________________________________ References: Gupta, N. P., Agarwal, R., & Pant, S. (2009). Factors affecting felting of wool: An overview. Colourage, 56(1). Johnson, N. A., & Russell, I. (Eds.). (2008). Advances in wool technology. Elsevier. https://goo.gl/vZ9eCn Makinson, K. R. (1972). The Role of the Scales of Wool Fibers in Felting and in Shrinkproofing. Wool Sci. Rev, (42), 2-16. Makinson, K. R. (1979). Shrinkproofing of wool (Vol. 8). M. Dekker. Chicago. Menkart, J., & Speakman, J. B. (1945). Scaliness of Wool Fibres. Nature, 156, 143-143. http://www.nature.com/nature/journal/v156/n3953/abs/156143a0.html van der Vegt, A. K. (1955). A study on the mechanism of wool felting. Excelsior. |
Wed, 19 April 2017
A tiny change in a molecule’s geometry completely changes its effects on the human body. |
Wed, 12 April 2017
Check out how cats became our favorite little murder machines. Thanks also to our supporters on https://www.patreon.com/MinuteEarth If you want to learn more about this topic, here are some keywords to get your googling started: Puma: The big cat with the largest home range. ___________________________________________ Credits (and Twitter handles): Video Illustrator: Qingyang Chen (@QCvisual) _________________________________________ Like our videos? Also, say hello on: And find us on itunes: https://goo.gl/sfwS6n ___________________________________________ References: Hu, Yaowu, et al. ""Earliest evidence for commensal processes of cat domestication."" Proceedings of the National Academy of Sciences 111.1 (2014): 116-120." Montague, Michael J., et al. ""Comparative analysis of the domestic cat genome reveals genetic signatures underlying feline biology and domestication."" Proceedings of the National Academy of Sciences 111.48 (2014): 17230-17235. O’Brien, Stephen J., and Warren E. Johnson. The evolution of cats. Scientific American 297.1 (2007): 68-75. "The Lion in the Living Room"" - Abigail Tucker http://amzn.to/2ppLNxz (Public library: http://www.worldcat.org/oclc/956395842) Vigne, Jean-Denis, et al. Earliest “Domestic” Cats in China Identified as Leopard Cat (Prionailurus bengalensis). PloS one 11.1 (2016): e0147295. Human-cat burial image provided courtesy of Pr . Jean Guilaine excavations
Direct download: How_Cats_Became_our_Feline_Overlords_ft._Its_Okay_To_Be_Smart.mp4
Category:general -- posted at: 10:52am EDT |