{"id":27504,"date":"2023-05-25T12:16:24","date_gmt":"2023-05-25T10:16:24","guid":{"rendered":"https:\/\/www.sciencefocus.com\/?p=144285"},"modified":"2023-05-25T12:37:11","modified_gmt":"2023-05-25T10:37:11","slug":"the-bizarre-reason-the-chainsaw-was-first-invented","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/rss_feed\/the-bizarre-reason-the-chainsaw-was-first-invented\/","title":{"rendered":"The bizarre reason the chainsaw was first invented"},"content":{"rendered":"<p class=\"rssexcerpt\"> The original chainsaw was not used by lumberjacks, but doctors. <\/p><p class=\"rssauthor\">By Toby Saunders\n                \t\t<\/p><p class=\"rssbyline\">Published: Thursday, 25 May 2023 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body> <p>If you\u2019re a lumberjack or otherwise, you might be wondering why the <a href=\"\/\/www.sciencefocus.com\/science\/the-odd-science-that-connects-taekwondo-and-chainsaws\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">chainsaw<\/a> was invented.<\/p>\n<p>These useful sawing tools have been used for years, with early devices cutting through wood in the 19th Century. The chainsaw as we know it, though, appears to have begun life as a <a href=\"\/\/www.sciencefocus.com\/the-human-body\/dragon-breath-vomiting-slugs-and-pigeon-remedies-8-bizarre-medical-stories-from-history\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">medical instrument<\/a> \u2013 one used to assist in childbirth.<\/p>\n<p>Although the details below are doubtlessly gruesome, rest assured that doctors of the time didn\u2019t stick <em>fuel-powered<\/em> chainsaws inside women.<\/p>\n<p>The original chainsaw \u2013 invented by Scottish doctors John Aitken and James Jeffray \u2013 was originally designed as a \u201cflexible saw\u2026 contrived to be used when there is ossification [ostructive bone],\u201d according to 1785\u2019s <em><a href=\"\/\/books.google.co.uk\/books?id=pAllAAAAcAAJ&amp;pg=PA70&amp;source=gbs_toc_r&amp;cad=4#v=onepage&amp;q&amp;f=false&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Principles Of Midwifery, Or Puerperal Medicine<\/a><\/em>.<\/p>\n<p>The crude chainsaw was designed to aid and speed up the process of symphysiotomy (widening the pubic cartilage) and the removal of disease-laden bone.<\/p>\n<p>The flexible saw, which later became the osteotome (developed by German physician Bernhard Heine in 1830 \u2013 see below) was used to cut away flesh, cartilage, and bone from the mother during childbirth if the baby became stuck in the birth canal.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=300%2C154,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=300%2C154,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=355%2C183,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=355%2C183,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=405%2C208,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=405%2C208,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=554%2C285&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=554%2C285&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=620%2C319&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=620%2C319&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=408%2C210,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=408%2C210,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?webp=true&amp;quality=90&amp;resize=556%2C286&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=556%2C286&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-144399\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/Osteotome-2306970.jpg?quality=90&amp;resize=620%2C319&quot;\" width=\"&quot;620&quot;\" height=\"&quot;318&quot;\" alt=\"&quot;Early\" chainsaw=\"\" known=\"\" as=\"\" osteotome=\"\" title=\"&quot;first\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> An early chainsaw, known as Osteotome, from 1780. \u00a9 Sabine Salfer\/Wikicommons<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"> <i>\u00a9 Sabine Salfer\/Wikicommons<\/i><\/span><\/div>\n<p>As per <a href=\"&quot;https:\/\/books.google.co.uk\/books?id=nRpAAAAAcAAJ&amp;pg=PA127&amp;redir_esc=y#v=onepage&amp;q&amp;f=false&quot;\"><i>The Lancet London<\/i><\/a>, \u201cthe osteotome should be compared to a knife, or a very strong bistoury\u2026 the case is simply composed of two plates, placed one upon the other, and between which is contained a toothed wheel, put into motion by a handle.\u201d<\/p>\n<p>It was quite the <a href=\"\/\/www.sciencefocus.com\/the-human-body\/the-moment-of-discovery-11-massive-medical-breakthroughs-in-pictures\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">medical breakthrough<\/a> and was used throughout the rest of the 19th Century in surgeries.<\/p>\n<p><strong>Read more:<\/strong><\/p>\n<ul><li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/science\/the-odd-science-that-connects-taekwondo-and-chainsaws\/&quot;\">What science connects taekwondo and chainsaws?<\/a><\/li>\n<li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/science\/who-really-invented-the-light-bulb\/&quot;\">Who really invented the light bulb?<\/a><\/li>\n<\/ul><p>Fortunately, however, advancements in medicine have allowed us to move beyond symphysiotomy and the osteotome. Childbirth is now far safer and the caesarean section has become much more successful following various advancements in technique, clinical practice, and hygiene.<\/p>\n<p>The chainsaw most people know today for woodchopping was really born at the start of the 20th Century.<\/p>\n<p>Patents were handed around in 1883 for the <a href=\"\/\/books.google.co.uk\/books?id=vxV9AAAAMAAJ&amp;pg=PA2384&amp;redir_esc=y#v=onepage&amp;q&amp;f=false&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Chain Sawing Machine<\/a> and in 1906 for the <a href=\"\/\/patents.google.com\/patent\/US893897A\/en&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Endless Chain Saw<\/a>. These were designed for producing wooden boards and felling giant redwoods, respectively.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=300%2C230,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=300%2C230,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=355%2C273,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=355%2C273,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=405%2C311,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=405%2C311,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=554%2C425&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=554%2C425&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=620%2C476&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=620%2C476&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=408%2C313,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=408%2C313,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?webp=true&amp;quality=90&amp;resize=556%2C427&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=556%2C427&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-144400\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/05\/old-chainsaw-1916-2b3a13a.jpg?quality=90&amp;resize=620%2C476&quot;\" width=\"&quot;620&quot;\" height=\"&quot;476&quot;\" alt=\"&quot;A\" motorised=\"\" chainsaw=\"\" of=\"\" title=\"&quot;Lumberjack\" with=\"\" early=\"\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> A motorised and portable drag saw being used by lumbermen in Washington, Bellingham, Washington, circa 1916. \u00a9 Getty<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"> <i>\u00a9 Getty images<\/i><\/span><\/div>\n<p>By 1918 the world had its first portable chainsaw, created and <a href=\"\/\/worldwide.espacenet.com\/patent\/search\/family\/045305912\/publication\/CA186260A?q=CA186260A&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">patented<\/a> by Canadian James Shand. Fast-forward just a few years later and we had our first electric chainsaw and gasoline-powered chainsaws.<\/p>\n<p>These were designed and developed by Andreas Stihl who patented and developed an electric chainsaw for cutting wood in 1926. Three years later he patented a gas-powered model.<\/p>\n<p>These early models were large enough that they required two men to operate. It wasn\u2019t until after the second world war that chainsaws became light enough to be operated by a single person, owing to the advancements in aluminium and engine design.<\/p>\n<p><strong>Read more:<\/strong><\/p>\n<ul><li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/science\/who-invented-soap\/&quot;\">Who invented soap?<\/a><\/li>\n<li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/science\/who-invented-the-boomerang\/&quot;\">Who invented the boomerang?<\/a><\/li>\n<\/ul> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p> The original chainsaw was not used by lumberjacks, but doctors. <\/p>\n","protected":false},"author":24,"featured_media":27505,"template":"","categories":[54],"acf":{"readingTimeMinutes":"3"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented.jpg",1200,511,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented-300x128.jpg",300,128,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented-768x327.jpg",768,327,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented-1024x436.jpg",800,341,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented.jpg",1200,511,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/05\/the-bizarre-reason-the-chainsaw-was-first-invented.jpg",1200,511,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"The original chainsaw was not used by lumberjacks, but doctors.","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed\/27504"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media\/27505"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media?parent=27504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/categories?post=27504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}