{"id":633,"date":"2017-10-10T16:22:07","date_gmt":"2017-10-10T15:22:07","guid":{"rendered":"http:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/?p=633"},"modified":"2023-06-21T09:29:04","modified_gmt":"2023-06-21T08:29:04","slug":"100-years-marking-rutherfords-breakthroughs","status":"publish","type":"post","link":"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/2017\/10\/10\/100-years-marking-rutherfords-breakthroughs\/","title":{"rendered":"100 years on, marking Rutherford\u2019s breakthroughs"},"content":{"rendered":"<p>Did you know that Manchester is the birthplace of modern nuclear physics? It was created right here by <a href=\"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/2017\/09\/18\/meet-university-manchesters-famous-alumni\/\">Ernest Rutherford<\/a> and his colleagues, and this year marks a century since Rutherford initiated the first artificial nuclear reaction.<\/p>\n<p>And that wasn\u2019t the end of the team\u2019s breakthroughs. Between 1914 and 1919, Rutherford led many experiments in his lab <em>(his desk is pictured above)<\/em>. These efforts resulted in the discovery of the proton and many other crucial breakthroughs.<\/p>\n<h2>Splitting the atom<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-637 size-full\" src=\"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Atom.jpg\" alt=\"\" width=\"591\" height=\"584\" srcset=\"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Atom.jpg 591w, https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Atom-300x296.jpg 300w\" sizes=\"auto, (max-width: 591px) 100vw, 591px\" \/><\/p>\n<p>Rutherford is often credited with splitting the atom during this period, but many physicists would argue this isn\u2019t the most accurate way to describe the outcome of his research.<\/p>\n<p>Sean Freeman, Professor of Nuclear Physics at the University, explains:\u00a0 \u2018\u201cSplitting the atom\u201d is not a particularly good description of this work. Rutherford actually bombarded nitrogen with alpha particles from a radioactive source and thus became the first person to initiate a nuclear reaction.\u201d<\/p>\n<p>It was this experiment that led to the discovery of the proton. Previously, it was his mentor JJ Thomson\u2019s \u2018plum pudding\u2019 model of the atom that was generally accepted by the scientific community. This theory held that atoms were made up of negatively charged electrons existing within a positively charged space.<\/p>\n<p>With the discovery of the nucleus in 1911, Rutherford\u2019s work undid this theory. He tasked Hans Geiger and Ernest Marsden with pointing a beam made up of alpha particles at a sheet of metal foil. If the alpha particles were neutral \u2013 which the plumb pudding model suggested they should be \u2013 the particles should pass through the foil. Instead, Rutherford realised that some of the particles bounced off in all manner of directions.<\/p>\n<p>This led Rutherford to theorise that the atom must contain a highly concentrated positive charge at its centre. As we all know, this was the nucleus that lies in the middle of atoms and consists of protons and neutrons.<\/p>\n<h2>Nuclear reaction<\/h2>\n<blockquote><p>&#8220;The first nuclear reaction initiated by a human and the discovery of the proton are big steps.&#8221;<\/p><\/blockquote>\n<p>Over the next few years, Rutherford and his team conducted numerous experiments. These tests involved bombarding nitrogen gas with alpha particles, resulting in the absorption of some of these alpha particles by the nitrogen nuclei.<\/p>\n<p>This loaded the nitrogen nuclei with additional energy, which caused it to emit a hydrogen nucleus and an oxygen atom. This hydrogen was a subatomic particle, which we know more commonly as a proton.<\/p>\n<p>Says Prof Freeman: \u201cRutherford showed that the \u2018nucleus of hydrogen\u2019 existed in the nucleus of other atoms and thus appeared as a basic building block. The first nuclear reaction initiated by a human and the discovery of the proton are big steps in themselves, but from these reactions you can also infer the sizes of nuclei. It also led to the development of nuclear accelerators &#8211; so that you could induce all sorts of different nuclear reactions.\u201d<\/p>\n<h2>Pass the bubbly<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-638 size-large\" src=\"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Lovell-Telescope-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Lovell-Telescope-1024x683.jpg 1024w, https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Lovell-Telescope-300x200.jpg 300w, https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Lovell-Telescope-768x512.jpg 768w, https:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/wp-content\/uploads\/sites\/59\/2017\/10\/Lovell-Telescope.jpg 1382w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>The anniversary of the Rutherford discovery is not the only big day being marked here at the Faculty of Science and Engineering this month. Monday (October 9<sup>th<\/sup>) was the 60<sup>th<\/sup> anniversary of the Lovell Telescope at Jodrell Bank.<\/p>\n<p>The parabolic reflector radio telescope was the largest of its kind in the world when construction finished in 1957. It was also the only radio telescope capable of tracking the world\u2019s first artificial satellite, Sputnik.<\/p>\n<p>Today, the 3,200 tonne telescope is still busy gathering data from the depths of space. You can <a href=\"http:\/\/www.jodrellbank.net\/visit\/whats-here\/lovell-telescope\/\">learn more about the landmark here<\/a>.<\/p>\n<p>And to learn more about the work of Rutherford, the University is opening the doors to his private research room for the first time next month. Book your place at this <a href=\"http:\/\/events.manchester.ac.uk\/event\/event:d11w-j838icf2-lzfesw\">special exhibition here<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><em>Words \u2013 Hayley Cox<\/em><\/p>\n<p><em>Images &#8211; The University of Manchester &amp; <a href=\"https:\/\/www.flickr.com\/photos\/billyandlynn\/6313062659\/\">Billy and Lynn<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Did you know that Manchester is the birthplace of modern nuclear physics? It was created right here by Ernest Rutherford and his colleagues, and this year marks a century since Rutherford initiated the first artificial nuclear reaction. And that wasn\u2019t the end of the team\u2019s breakthroughs. Between 1914 and 1919, Rutherford led many experiments in [&hellip;]<\/p>\n","protected":false},"author":160,"featured_media":634,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[212],"tags":[25,91,92,24,27,26,219,23],"class_list":{"0":"post-633","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-heritage","8":"tag-atom","9":"tag-dalton-cumbrian-facility","10":"tag-dalton-nuclear-institute","11":"tag-nuclear","12":"tag-nuclear-physics","13":"tag-physics","14":"tag-physics-and-astronomy","15":"tag-rutherford","16":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>100 years on, marking Rutherford\u2019s breakthroughs - Science and Engineering<\/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:\/\/www.mub.eps.manchester.ac.uk\/science-engineering\/2017\/10\/10\/100-years-marking-rutherfords-breakthroughs\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"100 years on, marking Rutherford\u2019s breakthroughs - Science and Engineering\" \/>\n<meta property=\"og:description\" content=\"Did you know that Manchester is the birthplace of modern nuclear physics? It was created right here by Ernest Rutherford and his colleagues, and this year marks a century since Rutherford initiated the first artificial nuclear reaction. And that wasn\u2019t the end of the team\u2019s breakthroughs. 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