{"id":3184,"date":"2020-01-06T12:22:11","date_gmt":"2020-01-06T17:22:11","guid":{"rendered":"https:\/\/www.phytochemia.com\/?p=3184"},"modified":"2020-01-06T12:22:11","modified_gmt":"2020-01-06T17:22:11","slug":"the-chemistree-history","status":"publish","type":"articles-de-blogue","link":"https:\/\/phytochemia.com\/en\/articles-de-blogue\/the-chemistree-history\/","title":{"rendered":"The Chemistree History"},"content":{"rendered":"\n<p style=\"text-align: justify;\">Corine Lormel, Ph.D.<\/p>\n<p style=\"text-align: justify;\">In the past month, several pictures of chemistry Christmas trees also named chemistrees probably blossomed in your news feeds. As some of us in the laboratory,\u00a0 you assume this phenomenon is recent and the pioneers are very passionate about chemistry.<\/p>\n<p>Of course, a bunch of enthusiasts is necessary but those who have first dealt with chemistree did it sooner than you think.<\/p>\n<p style=\"text-align: justify;\">In December 1940 Wilamena Schnooberger, a chemistry teacher in Michigan, managed the achievement of the first chemistree currently known. Her high school students used the laboratory equipment such as stands, rubber hoses, copper sheets, glass wool made to complete their tree. They wrote Merry Christmas in dichromate potassium as well (Image 1).<\/p>\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" class=\"wp-image-3149\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/1940-xmas-tree-2.jpg\" alt=\"\" \/>\n<figcaption>Image 1: First known chemistree, dating from 1940 and made by Michigan&#8217;s high school students<\/figcaption>\n<\/figure>\n\n\n<p style=\"text-align: justify;\">In 1956 another chemistree was identified in an IOWA high school. According to teacher A. W. Sturges, the purpose was to introduce indicators and the nomenclature of equipment (O\u2019Donoghue, 2019). Twenty years later, in 1976, Waterloo&#8217;s University magazine (Hein, 2019) published the same year three articles on chemistrees made by American and Canadian high school students (Images 2). Two of them resulted from a redox reaction between copper and silver to obtain silver fir trees.<\/p>\n<p style=\"text-align: center;\">It seems that chemistrees come, mostly, from an educational and playful tradition in English-speaking schools.<\/p>\n\n\n<ul class=\"wp-block-gallery aligncenter columns-2 wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3152\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/OxydoRed-1976.jpg\" alt=\"\" data-id=\"3152\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3152\" \/>\n<figcaption>Image 2 a: Chemistree made by a Pennsylvanian high school class in a Petri dish by redox (1976)<\/figcaption>\n<\/figure>\n<\/li>\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3153\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/ChemisTReeOntario-e1577194087747.jpg\" alt=\"\" data-id=\"3153\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3153\" \/>\n<figcaption>Image 2b: Chemistree made by students in Ontario (1976)<\/figcaption>\n<\/figure>\n<\/li>\n<\/ul>\n\n\n<p style=\"text-align: justify;\">These last years, an online educational chemistree competition was created by a Ph.D. student John O&#8217;Donoghue (OChemistree, 2019). Based on five categories, from paper\/poster trees to grown (crystals), nanoscale or molecular modeling trees (Hein, 2019), every December he nominates the winners among those with the hashtag #Chemistree and @johndhodonoghue. According to John O&#8217;Donoghue, the movement has mushroomed since 2017. With not only a higher number of competitors but also a greater diversity of tree forms and origin (Images 3). This explains as well why chemistrees seem to be a novelty for many people.<\/p>\n\n\n<ul class=\"wp-block-gallery columns-4 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3141\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/untitled.jpg\" alt=\"\" data-id=\"3141\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3141\" \/>\n<figcaption>Image 3a : Grown (crystal) tree<\/figcaption>\n<\/figure>\n<\/li>\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3142\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/screen-shot-2017-12-21-at-19-54-22.png\" alt=\"\" data-id=\"3142\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3142\" \/>\n<figcaption>Image 3b : Origami tree (Scotland)<\/figcaption>\n<\/figure>\n<\/li>\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3144\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/screen-shot-2017-12-20-at-13-10-54.png\" alt=\"\" data-id=\"3144\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3144\" \/>\n<figcaption>Image 3c : Conceptual tree (Ireland)<\/figcaption>\n<\/figure>\n<\/li>\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3156\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/Recamier-Lyon-960x1200.jpg\" alt=\"\" data-id=\"3156\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3156\" \/>\n<figcaption>Image 3d: Purist tree (France)<\/figcaption>\n<\/figure>\n<\/li>\n<\/ul>\n\n\n<p>The #Chemistree hashtag has also a catalyzing effect on chemical research laboratories. New chemistrees models usually linked to the laboratory research activities were created (Images 4) and we can, fortunately, expect more creative chemistrees in the future.<\/p>\n\n\n<ul class=\"wp-block-gallery aligncenter columns-2 wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3139\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/Dtf_8MLW0AAiwyl.jpg\" alt=\"\" data-id=\"3139\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3139\" \/>\n<figcaption>Image 4a : Micro Chemistree from Amber lab (Ireland)<\/figcaption>\n<\/figure>\n<\/li>\n\t<li class=\"blocks-gallery-item\">\n<figure><img decoding=\"async\" class=\"wp-image-3160\" src=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2019\/12\/groupe-2.jpg\" alt=\"\" data-id=\"3160\" data-link=\"http:\/\/localbackup.local\/?attachment_id=3160\" \/>\n<figcaption>Image 4b : Chemistree from Gransfield University (USA)<\/figcaption>\n<\/figure>\n<\/li>\n<\/ul>\n\n\n<h1 style=\"text-align: center;\">\u00a0<\/h1>\n\n\n<pre><strong>Bibliography\n\n<\/strong>John O'Donoghue, OChemistree, https:\/\/ochemistree.wordpress.com\/previous-winners\/ \n\nHein, J. (2019, 01 05). Growing a chemistree and a competition -cover article. <em>CHEM13 NEWS MAGAZINE<\/em>. (U. d. Waterloo, \u00c9d.) Waterloo, Ontario, canada. Consult\u00e9 le 12 18, 2019, sur https:\/\/uwaterloo.ca\/chem13-news-magazine\/december-2018-january-2019\/feature\/growing-chemistree-and-competition-cover-article<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","categories-darticle":[32,33],"class_list":["post-3184","articles-de-blogue","type-articles-de-blogue","status-publish","has-post-thumbnail","hentry","categories-darticle-activities-and-events","categories-darticle-discoveries"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Chemistree History - PhytoChemia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/phytochemia.com\/en\/articles-de-blogue\/the-chemistree-history\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Chemistree History - 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