PT Inquest is an online journal club. Hosted by Jason Tuori, Megan Graham, and Chris Juneau, the show looks at an article every week and discusses how it applies to current physical therapy practice.
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Why Don’t Sheep Shrink In The Rain?
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Manage episode 177846485 series 46737
Content provided by Henry Reich and Neptune Studios. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Henry Reich and Neptune Studios or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
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: Fiber: a threadlike structure forming part of the muscular, nervous, connective, or other tissue in the human or animal body Felting: the process by which wool or another textile can be agitated, often along with moisture or heat, to cause the fibers to migrate amongst themselves and mat together into a dense smooth surface Ratchet: a device consisting of a bar or wheel with a set of angled teeth that allow motion in one direction only Wool: soft curly or wavy hair forming the coat of a sheep or similar animal, especially when cut off the animal & prepared for use in making cloth or yarn Mammal: a warm-blooded, bony, & hairy/furry animal, the females of which give birth to live young and nurse them with milk ___________________________________________ Credits (and Twitter handles): Script Writer: Emily Elert (@eelert) Script Editor: Alex Reich (@alexhreich) Video Illustrator: Qingyang (@QCVisual) Video Director: Henry Reich (@MinutePhysics) Video Narrator: Kate Yoshida (@KateYoshida) With Contributions From: Ever Salazar, Peter Reich, David Goldenberg Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder _________________________________________ Like our videos? Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd Support us on Patreon: https://goo.gl/ZVgLQZ Also, say hello on: Facebook: http://goo.gl/FpAvo6 Twitter: http://goo.gl/Y1aWVC And find us on itunes: https://goo.gl/sfwS6n ___________________________________________ If you liked this week’s video, we think you might also like: Is it Better to Walk or Run in the Rain? https://www.youtube.com/watch?v=3MqYE2UuN24 ___________________________________________ 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.
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256 episodes
MP4•Episode home
Manage episode 177846485 series 46737
Content provided by Henry Reich and Neptune Studios. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Henry Reich and Neptune Studios or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
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: Fiber: a threadlike structure forming part of the muscular, nervous, connective, or other tissue in the human or animal body Felting: the process by which wool or another textile can be agitated, often along with moisture or heat, to cause the fibers to migrate amongst themselves and mat together into a dense smooth surface Ratchet: a device consisting of a bar or wheel with a set of angled teeth that allow motion in one direction only Wool: soft curly or wavy hair forming the coat of a sheep or similar animal, especially when cut off the animal & prepared for use in making cloth or yarn Mammal: a warm-blooded, bony, & hairy/furry animal, the females of which give birth to live young and nurse them with milk ___________________________________________ Credits (and Twitter handles): Script Writer: Emily Elert (@eelert) Script Editor: Alex Reich (@alexhreich) Video Illustrator: Qingyang (@QCVisual) Video Director: Henry Reich (@MinutePhysics) Video Narrator: Kate Yoshida (@KateYoshida) With Contributions From: Ever Salazar, Peter Reich, David Goldenberg Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder _________________________________________ Like our videos? Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd Support us on Patreon: https://goo.gl/ZVgLQZ Also, say hello on: Facebook: http://goo.gl/FpAvo6 Twitter: http://goo.gl/Y1aWVC And find us on itunes: https://goo.gl/sfwS6n ___________________________________________ If you liked this week’s video, we think you might also like: Is it Better to Walk or Run in the Rain? https://www.youtube.com/watch?v=3MqYE2UuN24 ___________________________________________ 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.
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