{"id":2999,"date":"2018-05-15T05:40:08","date_gmt":"2018-05-15T05:40:08","guid":{"rendered":"https:\/\/doro-tea.ro\/blog\/?p=2999"},"modified":"2018-05-15T05:50:36","modified_gmt":"2018-05-15T05:50:36","slug":"efectul-ceainicului-oamenii-de-stiinta-au-dat-verdictul","status":"publish","type":"post","link":"https:\/\/doro-tea.ro\/blog\/efectul-ceainicului-oamenii-de-stiinta-au-dat-verdictul\/","title":{"rendered":"\u201cEfectul ceainicului\u201d: oamenii de \u0219tiin\u021b\u0103 au dat verdictul"},"content":{"rendered":"<p style=\"text-align: justify;\">\u021ai s-a \u00eent\u00e2mplat s\u0103 torni \u00eencet ceai dintr-un ceainic \u0219i <strong>lichidul s\u0103 picure pe l\u00e2ng\u0103<\/strong>, f\u0103c\u00e2ndu-te s\u0103 sari \u00een c\u0103utarea unui \u0219erve\u021bel? Da, \u0219i nou\u0103&#8230; \u00cens\u0103 acum ne putem lua r\u0103mas-bun de la aceste pete nesuferite, pentru c\u0103 un grup de cercet\u0103tori francezi au descoperit cum se poate neutraliza \u201c<strong>efectul ceainicului<\/strong>\u201d (<em>Teapot Effect<\/em>). Probabil c\u0103 erau \u0219i ei pasiona\u021bi de ceai \u0219i au zis s\u0103 \u00eembine utilul cu pl\u0103cutul \ud83d\ude00<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3001\" src=\"https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului.jpg\" alt=\"efectul ceainicului\" width=\"2500\" height=\"1081\" srcset=\"https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului.jpg 2500w, https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului-300x130.jpg 300w, https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului-1024x443.jpg 1024w, https:\/\/doro-tea.ro\/blog\/wp-content\/uploads\/2018\/05\/efectul-ceainicului-500x216.jpg 500w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">A\u0219a cum probabil ai observat, dac\u0103 \u021bii ceainicul \u00eenclinat \u0219i torni \u201e\u00een for\u021b\u0103\u201d, ceaiul iese \u00eentr-un <strong>flux continuu<\/strong> \u0219i ajunge frumos \u00een ce\u0219ti. \u00cens\u0103 c\u00e2nd ceainicul este <strong>aproape gol<\/strong> sau nu-l \u00eenclini suficient, lichidul se prelinge pe gura ceainicului.<\/p>\n<p style=\"text-align: justify;\">Un grup de oameni de \u0219tiin\u021b\u0103 de la Universitatea din Lyon au studiat problema \u0219i au g\u0103sit vinovatul: un efect de \u201c<strong>hidro-capilaritate<\/strong>\u201d, care men\u021bine lichidul \u00een contact cu suprafa\u021ba ceainicului c\u00e2nd ceaiul iese din gura vasului. Intensitatea efectului este dat\u0103 de cum se comport\u0103 materialul \u00een contact cu apa, de viteza de curgere a lichidului \u0219i de gradul de curbare al gurii ceainicului.<\/p>\n<p style=\"text-align: justify;\"><strong>Solu\u021bia?\u00a0<\/strong><!--more--><\/p>\n<p style=\"text-align: justify;\">Oamenii de \u0219tiin\u021b\u0103 spun c\u0103 pentru a evita prelingerea lichidului pe ceainic, buza acestuia ar trebui s\u0103 fie<strong> c\u00e2t mai sub\u021bire posibil<\/strong> (ca la ceainicele metalice), <strong>cu v\u00e2rful ascu\u021bit. <\/strong><\/p>\n<p style=\"text-align: justify;\">De asemenea, problema ar disp\u0103rea complet dac\u0103 buza ceainicului ar fi acoperit\u0103 cu <strong>unul dintre materialele hidrofobe de ultim\u0103 genera\u021bie. <\/strong>Acestea resping lichidul \u0219i astfel ceaiul nu se va mai scurge pe ceainic.<\/p>\n<p style=\"text-align: justify;\">Pe iubitorii de ceai adep\u021bi ai ceainicelor \u201eclasice\u201d \u00eei invit\u0103m s\u0103 arunce o privire \u00een <strong><a href=\"https:\/\/doro-tea.ro\/accesorii-ceai\/ceainice\">magazinul nostru online<\/a><\/strong>, unde au de ales dintr-o mul\u021bime de vase cu forme atractive.<\/p>\n<p style=\"text-align: justify;\">Cei pasiona\u021bi de subiect, care nu se tem de formule fizice \u0219i matematice, se pot delecta cu toate detaliile cercet\u0103rii \u00een <a href=\"https:\/\/arxiv.org\/pdf\/0910.3306.pdf\">acest material<\/a>.<\/p>\n<p style=\"text-align: justify;\"><em><a href=\"https:\/\/phys.org\/news\/2009-11-teapot-effect.html\">Sursa<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u021ai s-a \u00eent\u00e2mplat s\u0103 torni \u00eencet ceai dintr-un ceainic \u0219i lichidul s\u0103 picure pe l\u00e2ng\u0103, f\u0103c\u00e2ndu-te s\u0103 sari \u00een c\u0103utarea unui \u0219erve\u021bel? Da, \u0219i nou\u0103&#8230; \u00cens\u0103 acum ne putem lua r\u0103mas-bun de la aceste pete nesuferite, pentru c\u0103 un grup de cercet\u0103tori francezi au descoperit cum se poate neutraliza \u201cefectul ceainicului\u201d (Teapot Effect). Probabil c\u0103 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/doro-tea.ro\/blog\/efectul-ceainicului-oamenii-de-stiinta-au-dat-verdictul\/\" class=\"more-link\">Continu\u0103 lectura<span class=\"screen-reader-text\"> \u201e\u201cEfectul ceainicului\u201d: oamenii de \u0219tiin\u021b\u0103 au dat verdictul\u201d<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[11,163],"class_list":["post-2999","post","type-post","status-publish","format-standard","hentry","category-despre-ceai","tag-ceainic","tag-ceainice"],"_links":{"self":[{"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/posts\/2999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/comments?post=2999"}],"version-history":[{"count":3,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/posts\/2999\/revisions"}],"predecessor-version":[{"id":3003,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/posts\/2999\/revisions\/3003"}],"wp:attachment":[{"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/media?parent=2999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/categories?post=2999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doro-tea.ro\/blog\/wp-json\/wp\/v2\/tags?post=2999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}