{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Why Don’t Sheep Shrink In The Rain?' data-url='/boclips/videos/5f871cc8cd6ffe0d27ad6dfa' data-video-url='/boclips/videos/5f871cc8cd6ffe0d27ad6dfa' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nWhy Don’t Sheep Shrink In The Rain?\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30358007\" href=\"/search?publisher_ids%5B%5D=30358007\"\u003eMinuteEarth\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eGetting 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...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eGetting 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.”\u003cbr/\u003e___________________________________________\u003cbr/\u003e\u003cbr/\u003eTo learn more about this topic, start your googling with these keywords: \u003cbr/\u003eFiber: a threadlike structure forming part of the muscular, nervous, connective, or other tissue in the human or animal body\u003cbr/\u003eFelting: 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\u003cbr/\u003eRatchet: a device consisting of a bar or wheel with a set of angled teeth that allow motion in one direction only\u003cbr/\u003eWool: soft curly or wavy hair forming the coat of a sheep or similar animal, especially when cut off the animal \u0026 prepared for use in making cloth or yarn\u003cbr/\u003eMammal: a warm-blooded, bony, \u0026 hairy/furry animal, the females of which give birth to live young and nurse them with milk\u003cbr/\u003e\u003cbr/\u003e___________________________________________\u003cbr/\u003e\u003cbr/\u003eCredits (and Twitter handles):\u003cbr/\u003eScript Writer: Emily Elert (@eelert)\u003cbr/\u003eScript Editor: Alex Reich (@alexhreich)\u003cbr/\u003eVideo Illustrator: Qingyang (@QCVisual)\u003cbr/\u003eVideo Director: Henry Reich (@MinutePhysics)\u003cbr/\u003eVideo Narrator: Kate Yoshida (@KateYoshida)\u003cbr/\u003eWith Contributions From: Ever Salazar, Peter Reich, David Goldenberg \u003cbr/\u003eMusic by: Nathaniel \u003ca href='http://www.soundcloud.com/drschroeder' target='_blank' rel='nofollow'\u003eSchroeder\u003c/a\u003e\u003cbr/\u003e___________________________________________\u003cbr/\u003e\u003cbr/\u003eReferences:\u003cbr/\u003e\u003cbr/\u003eGupta, N. P., Agarwal, R., \u0026 Pant, S. (2009). Factors affecting felting of wool: An overview. Colourage, 56(1).\u003cbr/\u003e\u003cbr/\u003eJohnson, N. A., \u0026 Russell, I. (Eds.). (2008). Advances in wool technology. \u003ca href='https://goo.gl/vZ9eCn' target='_blank' rel='nofollow'\u003eElsevier.\u003c/a\u003e\u003cbr/\u003e\u003cbr/\u003eMakinson, K. R. (1972). The Role of the Scales of Wool Fibers in Felting and in Shrinkproofing. Wool Sci. Rev, (42), 2-16.\u003cbr/\u003e\u003cbr/\u003eMakinson, K. R. (1979). Shrinkproofing of wool (Vol. 8). M. Dekker. Chicago.\u003cbr/\u003e\u003cbr/\u003eMenkart, J., \u0026 Speakman, J. B. (1945). Scaliness of Wool Fibres. Nature, 156, 143-\u003ca href='http://www.nature.com/nature/journal/v156/n3953/abs/156143a0.html' target='_blank' rel='nofollow'\u003e143.\u003c/a\u003e\u003cbr/\u003e\u003cbr/\u003evan der Vegt, A. K. (1955). A study on the mechanism of wool felting. Excelsior.\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv class='rp-resource-details clearfix'\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eCurator Rating\u003c/dt\u003e\n\u003cdd\u003e\u003cspan class=\"star-rating\" aria-label=\"5.0 out of 5 stars\" role=\"img\"\u003e\u003ci class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003ci class=\"fa-solid fa-star text-action\" 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data-identifier='Boclips::VideoDecorator5f871cc8cd6ffe0d27ad6dfa' data-type='concepts'\u003ewool, rain, hair, fibers, sheep\u003c/div\u003e\n\u003cdiv class='concepts-toggle-buttons' data-identifier='Boclips::VideoDecorator5f871cc8cd6ffe0d27ad6dfa'\u003e\n\u003cbutton aria-expanded='false' class='more btn-link' type='button'\u003e\n\u003cspan\u003eShow More\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-down ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003cbutton aria-expanded='true' class='less btn-link' style='display: none;' type='button'\u003e\n\u003cspan\u003eShow Less\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-up ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='additional-tags-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='additional-tags-heading'\u003eAdditional Tags\u003c/h2\u003e\n\u003cdiv class='clearfix'\u003e\n\u003cdiv class='details-list keyterms' data-identifier='Boclips::VideoDecorator5f871cc8cd6ffe0d27ad6dfa' data-type='keyterms'\u003emake, tighter, brings, fiber, shrink, wash, floppy, direction, ratchets, caught, tossed, scales, ratchet effect, wool sweater, move, sweater\u003c/div\u003e\n\u003cdiv class='keyterms-toggle-buttons' data-identifier='Boclips::VideoDecorator5f871cc8cd6ffe0d27ad6dfa'\u003e\n\u003cbutton aria-expanded='false' class='more btn-link' type='button'\u003e\n\u003cspan\u003eShow More\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-down ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003cbutton aria-expanded='true' class='less btn-link' style='display: none;' type='button'\u003e\n\u003cspan\u003eShow Less\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-up ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='classroom-considerations-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='classroom-considerations-heading'\u003eClassroom Considerations\u003c/h2\u003e\n\u003cdiv class='classroom-considerations'\u003e\u003cdiv class='fai fa-solid fa-bell'\u003e\u003c/div\u003eBest For: Explaining a topic\u003c/div\u003e\u003cdiv class='classroom-considerations'\u003e\u003cdiv class='fai fa-solid fa-bell'\u003e\u003c/div\u003eVideo is ad-free\u003c/div\u003e \n\u003c/div\u003e\n\u003cdiv aria-labelledby='educator-ratings-heading' class='rp-info-section'\u003e\n\u003ch2 class='title sr-only' id='educator-ratings-heading'\u003eEducator Ratings\u003c/h2\u003e\n\u003cdiv id=\"educator-ratings-root\"\u003e\u003c/div\u003e\u003cdiv id=\"all-educator-ratings-root\"\u003e\u003c/div\u003e\u003cdiv id=\"educator-rating-form-root\"\u003e\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-resource'\u003e\n\u003cdiv aria-label='Show resource details' class='rp-show-info' role='button' 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