{"id":707,"date":"2009-03-25T20:16:23","date_gmt":"2009-03-25T19:16:23","guid":{"rendered":"https:\/\/wpethzprd.ethz.ch\/kowalski\/?p=707"},"modified":"2024-02-20T13:40:56","modified_gmt":"2024-02-20T11:40:56","slug":"tea-time-question","status":"publish","type":"post","link":"https:\/\/blogs.ethz.ch\/kowalski\/2009\/03\/25\/tea-time-question\/","title":{"rendered":"Tea time question"},"content":{"rendered":"<p>At the FIM Tea, this afternoon, the observation of the almost-never-erased blackboards in front of the seminar room led to the following historical question of clear importance: when was the blackboard, as a tool for lectures, invented? For instance, did Newton (who was a professor at Cambridge around 1670) ever lecture on a blackboard?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>At the FIM Tea, this afternoon, the observation of the almost-never-erased blackboards in front of the seminar room led to the following historical question of clear importance: when was the blackboard, as a tool for lectures, invented? For instance, did Newton (who was a professor at Cambridge around 1670) ever lecture on a blackboard?<\/p>\n","protected":false},"author":625,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-707","post","type-post","status-publish","format-standard","hentry","category-blogroll"],"_links":{"self":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts\/707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/users\/625"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/comments?post=707"}],"version-history":[{"count":0,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts\/707\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/media?parent=707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/categories?post=707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/tags?post=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}