{"id":19891,"date":"2025-01-13T19:28:43","date_gmt":"2025-01-13T20:28:43","guid":{"rendered":"http:\/\/medexperts.pro\/?p=19891"},"modified":"2025-01-13T21:26:09","modified_gmt":"2025-01-13T21:26:09","slug":"martin-karplus-chemist-who-made-early-computers-a-tool-dies-at-94","status":"publish","type":"post","link":"https:\/\/medexperts.pro\/?p=19891","title":{"rendered":"Martin Karplus, Chemist Who Made Early Computers a Tool, Dies at 94"},"content":{"rendered":"<div><\/div>\n<p id=\"article-summary\" class=\"css-79rysd e1wiw3jv0\">Proving skeptics wrong, he shared a Nobel Prize in 2013 for using computers to better understand chemical reactions and biological processes.<\/p>\n<section class=\"meteredContent css-1r7ky0e\">\n<div class=\"css-s99gbd StoryBodyCompanionColumn\" data-testid=\"companionColumn-0\">\n<div class=\"css-53u6y8\">\n<p class=\"css-at9mc1 evys1bk0\">Martin Karplus, a Nobel Prize-winning theoretical chemist who used computers to model how complex systems change during chemical reactions, a process that has led to advances in the understanding of biological processes, died on Dec. 28 at his home in Cambridge, Mass. He was 94.<\/p>\n<p class=\"css-at9mc1 evys1bk0\">His wife, Marci Karplus, said he died while recovering from a fall in which he broke a femur.<\/p>\n<p class=\"css-at9mc1 evys1bk0\">Over his long career, Dr. Karplus had crossed paths with some of the most important scientists of the 20th century, including Linus Pauling and J. Robert Oppenheimer.<\/p>\n<p class=\"css-at9mc1 evys1bk0\">Scientists can control the chemicals in a reaction, and they can measure and evaluate the results, but what happens in between is a mystery.<\/p>\n<p class=\"css-at9mc1 evys1bk0\">As Sven Lidin, chairman of the Nobel selection committee explained when announcing <a class=\"css-yywogo\" href=\"https:\/\/www.nobelprize.org\/prizes\/chemistry\/2013\/summary\/\" title rel=\"noopener noreferrer\" target=\"_blank\">the 2013 winners in chemistry<\/a>: \u201cIt\u2019s like seeing all the actors before Hamlet and all the dead bodies after, and then you wonder what happened in the middle. And actually, there is some interesting action there, and this is what theoretical chemistry provides us with \u2014 the whole drama.\u201d<\/p>\n<\/div>\n<\/div>\n<div data-testid=\"Dropzone-1\"><\/div>\n<div class=\"css-s99gbd StoryBodyCompanionColumn\" data-testid=\"companionColumn-1\">\n<div class=\"css-53u6y8\">\n<p class=\"css-at9mc1 evys1bk0\">Beginning in the 1960s, when computers were only a fraction as powerful as today\u2019s smartphones, Dr. Karplus and his fellow Nobel laureates \u2014 <a class=\"css-yywogo\" href=\"https:\/\/www.nobelprize.org\/prizes\/chemistry\/2013\/levitt\/facts\/\" title rel=\"noopener noreferrer\" target=\"_blank\">Michael Levitt<\/a>, originally from South Africa, and <a class=\"css-yywogo\" href=\"https:\/\/www.nobelprize.org\/prizes\/chemistry\/2013\/warshel\/facts\/\" title rel=\"noopener noreferrer\" target=\"_blank\">Arieh Warshel<\/a>, who was born in Israel \u2014 began to build virtual models of molecules to understand what happens to them during complex reactions like photosynthesis and combustion.<\/p>\n<p class=\"css-at9mc1 evys1bk0\">The models used classical Newtonian physics to predict how multitudes of atoms and molecules move during reactions, and they used quantum physics to describe how chemical bonds are broken and formed during those reactions. This type of analysis proved particularly useful in understanding biological reactions involving enzymes, the proteins that govern chemical responses in living organisms.<\/p>\n<div class=\"css-1336jj\">\n<div class=\"css-121kum4\">\n<div class=\"css-171d1bw\"><\/div>\n<div class=\"css-asuuk5\">\n<div class=\"css-7axq9l\" data-testid=\"optimistic-truncator-noscript\">\n<div data-testid=\"optimistic-truncator-noscript-message\" class=\"css-6yo1no\">\n<p class=\"css-3kpklk\">We are having trouble retrieving the article content.<\/p>\n<p class=\"css-3kpklk\">Please enable JavaScript in your browser settings.<\/p>\n<\/div>\n<\/div>\n<div class=\"css-1dv1kvn\" id=\"optimistic-truncator-a11y\">\n<hr \/>\n<p>Thank you for your patience while we verify access. If you are in Reader mode please exit and\u00a0<a href=\"https:\/\/myaccount.nytimes.com\/auth\/login?response_type=cookie&amp;client_id=vi&amp;redirect_uri=https%3A%2F%2Fwww.nytimes.com%2F2025%2F01%2F13%2Fscience%2Fmartin-karplus-dead.html&amp;asset=opttrunc\">log into<\/a>\u00a0your Times account, or\u00a0<a href=\"https:\/\/www.nytimes.com\/subscription?campaignId=89WYR&amp;redirect_uri=https%3A%2F%2Fwww.nytimes.com%2F2025%2F01%2F13%2Fscience%2Fmartin-karplus-dead.html\">subscribe<\/a>\u00a0for all of The Times.<\/p>\n<hr \/>\n<\/div>\n<div class=\"css-1g71tqy\">\n<div data-testid=\"optimistic-truncator-message\" class=\"css-6yo1no\">\n<p class=\"css-3kpklk\">Thank you for your patience while we verify access.<\/p>\n<p class=\"css-3kpklk\">Already a subscriber?\u00a0<a data-testid=\"log-in-link\" class=\"css-z5ryv4\" href=\"https:\/\/myaccount.nytimes.com\/auth\/login?response_type=cookie&amp;client_id=vi&amp;redirect_uri=https%3A%2F%2Fwww.nytimes.com%2F2025%2F01%2F13%2Fscience%2Fmartin-karplus-dead.html&amp;asset=opttrunc\">Log in<\/a>.<\/p>\n<p class=\"css-3kpklk\">Want all of The Times?\u00a0<a data-testid=\"subscribe-link\" class=\"css-z5ryv4\" href=\"https:\/\/www.nytimes.com\/subscription?campaignId=89WYR&amp;redirect_uri=https%3A%2F%2Fwww.nytimes.com%2F2025%2F01%2F13%2Fscience%2Fmartin-karplus-dead.html\">Subscribe<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Proving skeptics wrong, he shared a Nobel Prize in 2013 for using computers to better understand chemical reactions and biological processes.Martin Karplus, a Nobel Prize-winning theoretical chemist who used computers to model how complex systems change during chemical reactions, a process that has led to advances in the understanding of biological processes, died on Dec. 28 at his home in Cambridge, Mass. He was 94.His wife, Marci Karplus, said he died while recovering from a fall in which he broke a femur.Over his long career, Dr. Karplus had crossed paths with some of the most important scientists of the 20th century, including Linus Pauling and J. Robert Oppenheimer.Scientists can control the chemicals in a reaction, and they can measure and evaluate the results, but what happens in between is a mystery.As Sven Lidin, chairman of the Nobel selection committee explained when announcing the 2013 winners in chemistry: \u201cIt\u2019s like seeing all the actors before Hamlet and all the dead bodies after, and then you wonder what happened in the middle. And actually, there is some interesting action there, and this is what theoretical chemistry provides us with \u2014 the whole drama.\u201dBeginning in the 1960s, when computers were only a fraction as powerful as today\u2019s smartphones, Dr. Karplus and his fellow Nobel laureates \u2014 Michael Levitt, originally from South Africa, and Arieh Warshel, who was born in Israel \u2014 began to build virtual models of molecules to understand what happens to them during complex reactions like photosynthesis and combustion.The models used classical Newtonian physics to predict how multitudes of atoms and molecules move during reactions, and they used quantum physics to describe how chemical bonds are broken and formed during those reactions. This type of analysis proved particularly useful in understanding biological reactions involving enzymes, the proteins that govern chemical responses in living organisms.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and\u00a0log into\u00a0your Times account, or\u00a0subscribe\u00a0for all of The Times.Thank you for your patience while we verify access.Already a subscriber?\u00a0Log in.Want all of The Times?\u00a0Subscribe.<\/p>\n","protected":false},"author":1,"featured_media":19893,"comment_status":"close","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-19891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"_links":{"self":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/19891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19891"}],"version-history":[{"count":2,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/19891\/revisions"}],"predecessor-version":[{"id":19894,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/19891\/revisions\/19894"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/media\/19893"}],"wp:attachment":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}