{"id":907,"date":"2021-12-02T13:39:05","date_gmt":"2021-12-02T13:39:05","guid":{"rendered":"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=907"},"modified":"2024-05-03T12:55:47","modified_gmt":"2024-05-03T12:55:47","slug":"podcast-episode-5-pranjal-trivedi","status":"publish","type":"post","link":"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=907","title":{"rendered":"Podcast Episode 5: Pranjal Trivedi"},"content":{"rendered":"\n<p>In our fifth episode, Pranjal Trivedi, astrophysicist and cosmologist as a postdoctoral researcher at the Hamburg Observatory and the Quantum Universe Cluster of Excellence, talks about dark matter and the ongoing quest of finding it. <\/p>\n\n\n\n            <div class=\"podlove-web-player intrinsic-ignore podlove-web-player-loading\" id=\"player-69e61773dfd85\"><root data-test=\"player--xl\" style=\"max-width:950px;min-width:260px;\">\n  <div class=\"tablet:px-6 tablet:pt-6 mobile:px-4 mobile:pt-4 flex flex-col\">\n    <div class=\"flex-col items-center mobile:flex tablet:hidden\">\n      <show-title class=\"text-sm\"><\/show-title>\n      <episode-title class=\"text-base mb-2\"><\/episode-title>\n      <subscribe-button class=\"mb-4 mobile:flex tablet:hidden\"><\/subscribe-button>\n      <poster class=\"rounded-sm w-48 shadow overflow-hidden\"><\/poster>\n      <divider class=\"w-full my-6\"><\/divider>\n    <\/div>\n\n    <div class=\"tablet:flex flex-grow\">\n      <div class=\"w-64 mobile:hidden tablet:block tablet:mr-6\">\n        <poster class=\"rounded-sm shadow overflow-hidden\"><\/poster>\n      <\/div>\n      <div class=\"w-full\">\n        <div class=\"hidden tablet:block\">\n          <show-title class=\"text-base\"><\/show-title>\n          <episode-title class=\"text-xl desktop:text-2xl\"><\/episode-title>\n          <divider class=\"w-full my-4\"><\/divider>\n        <\/div>\n        <div class=\"flex items-center justify-between\">\n          <div class=\"block\">\n            <play-state on=\"active\">\n              <speed-control class=\"flex items-center\"><\/speed-control>\n            <\/play-state>\n          <\/div>\n\n          <div class=\"flex\">\n            <play-state on=\"active\">\n              <chapter-previous class=\"mx-2 block\"><\/chapter-previous>\n            <\/play-state>\n            <play-state on=\"active\">\n              <step-backward class=\"mx-2 block\"><\/step-backward>\n            <\/play-state>\n\n            <play-button class=\"mx-2 block\" :label=\"$t('PLAYER.PLAY_EPISODE')\"><\/play-button>\n\n            <play-state on=\"active\">\n              <step-forward class=\"mx-2 block\"><\/step-forward>\n            <\/play-state>\n            <play-state on=\"active\">\n              <chapter-next class=\"mx-2 block\"><\/chapter-next>\n            <\/play-state>\n          <\/div>\n\n          <div class=\"block\">\n            <play-state on=\"active\">\n              <volume-control class=\"flex items-center\"><\/volume-control>\n            <\/play-state>\n          <\/div>\n        <\/div>\n        <div class=\"flex w-full\">\n          <progress-bar><\/progress-bar>\n        <\/div>\n        <div class=\"flex w-full -mt-2\">\n          <div class=\"w-3\/12 text-left\">\n            <timer-current class=\"text-sm\"><\/timer-current>\n          <\/div>\n          <div class=\"w-6\/12 text-center truncate\">\n            <play-state on=\"active\">\n              <current-chapter class=\"text-sm\"><\/current-chapter>\n            <\/play-state>\n          <\/div>\n          <div class=\"w-3\/12 text-right\">\n            <timer-duration class=\"text-sm\"><\/timer-duration>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n    <divider class=\"w-full mt-6 mb-3\"><\/divider>\n    <div class=\"flex justify-between\">\n      <div class=\"flex mobile:w-full tablet:w-3\/12 desktop:w-3\/12 justify-between\">\n        <tab-trigger tab=\"chapters\">\n          <icon type=\"chapter\"><\/icon>\n        <\/tab-trigger>\n        <tab-trigger tab=\"transcripts\">\n          <icon type=\"transcripts\"><\/icon>\n        <\/tab-trigger>\n        <tab-trigger tab=\"files\">\n          <icon type=\"download\"><\/icon>\n        <\/tab-trigger>\n        <tab-trigger tab=\"playlist\">\n          <icon type=\"playlist\"><\/icon>\n        <\/tab-trigger>\n        <tab-trigger tab=\"share\">\n          <icon type=\"share\"><\/icon>\n        <\/tab-trigger>\n      <\/div>\n      <subscribe-button class=\"mt-1 mobile:hidden tablet:flex\"><\/subscribe-button>\n    <\/div>\n  <\/div>\n  <div class=\"w-full relative overflow-hidden\">\n    <tab name=\"chapters\">\n      <tab-chapters><\/tab-chapters>\n    <\/tab>\n    <tab name=\"transcripts\">\n      <tab-transcripts><\/tab-transcripts>\n    <\/tab>\n    <tab name=\"files\">\n      <tab-files><\/tab-files>\n    <\/tab>\n    <tab name=\"playlist\">\n      <tab-playlist><\/tab-playlist>\n    <\/tab>\n    <tab name=\"share\">\n      <tab-share><\/tab-share>\n    <\/tab>\n    <tab-overflow><\/tab-overflow>\n  <\/div>\n  <error><\/error>\n<\/root>\n<\/div>\n            <script>\n              document.addEventListener(\"DOMContentLoaded\", function() {\n                var player = document.getElementById(\"player-69e61773dfd85\");\n                podlovePlayerCache.add([{\"url\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/index.php?rest_route=\\\/podlove-web-player\\\/shortcode\\\/publisher\\\/864\",\"data\":{\"version\":5,\"show\":{\"title\":\"Science Chatter Hamburg\",\"subtitle\":\"by Researchers Based in Hamburg\",\"summary\":\"The Science Chatter Hamburg Podcast brings you episodes produced by PhD students and Postdocs from various fields, including Particle and Astroparticle Physics, Nanosciences, Photon Science and Infection and Structural Biology. Science Chatter Hamburg is organized by molecular biologist Theresa Schredelseker who works as a Coordinator at PIER, the strategic partnership between Uni Hamburg and DESY. Physicist and science communicator Michael B\\u00fcker will be the podcast host who talks to our our early career researchers to help them get thier stories out there.\",\"poster\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/cache\\\/podlove\\\/1f\\\/815c9bfb726ae3d989ea6446ad8444\\\/science-chatter-hamburg_500x.png\",\"link\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\"},\"title\":\"Episode 5: Pranjal Trivedi\",\"subtitle\":\"Dark matters of an axion kind\",\"summary\":\"In this podcast, Michael and Pranjal dive into the big physics mystery of dark matter. Why do astronomers assume there must be 5 times more matter in the Universe than we know about? This matter is called dark matter because it seems invisible using light, yet it makes a heavy presence felt via gravity. It's not made up of any atoms or ions like our bodies, the Earth or stars. It also does not match any subatomic particle discovered so far in physics experiments. So, what is it? Take a listen to find out why Hamburg scientists are busy doing theory and experiments hunting for dark matter in the form of the 'axion'.\",\"publicationDate\":\"2021-12-02T15:41:00+00:00\",\"duration\":\"00:37:23.700\",\"poster\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/cache\\\/podlove\\\/1f\\\/815c9bfb726ae3d989ea6446ad8444\\\/science-chatter-hamburg_500x.png\",\"link\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/?podcast=episode-5-pranjal-trivedi\",\"chapters\":[],\"audio\":[{\"url\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/uploads\\\/Pranjal.mp3\",\"size\":\"35889736\",\"title\":\"MP3 Audio (mp3)\",\"mimeType\":\"audio\\\/mpeg\"}],\"files\":[{\"url\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/uploads\\\/Pranjal.mp3\",\"size\":\"35889736\",\"title\":\"MP3 Audio\",\"mimeType\":\"audio\\\/mpeg\"},{\"url\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/uploads\\\/Pranjal.mp3\",\"size\":\"35889736\",\"title\":\"MP3 Audio\",\"mimeType\":\"audio\\\/mpeg\"}]}}, {\"url\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/index.php?rest_route=\\\/podlove-web-player\\\/shortcode\\\/config\\\/default\\\/theme\\\/default\",\"data\":{\"activeTab\":\"chapters\",\"subscribe-button\":null,\"share\":{\"channels\":[\"facebook\",\"twitter\",\"whats-app\",\"linkedin\",\"pinterest\",\"xing\",\"mail\",\"link\"],\"outlet\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/plugins\\\/podlove-web-player\\\/web-player\\\/share.html\",\"sharePlaytime\":true},\"related-episodes\":{\"source\":\"disabled\",\"value\":null},\"version\":5,\"theme\":{\"tokens\":{\"brand\":\"#E64415\",\"brandDark\":\"#235973\",\"brandDarkest\":\"#1A3A4A\",\"brandLightest\":\"#E9F1F5\",\"shadeDark\":\"#807E7C\",\"shadeBase\":\"#807E7C\",\"contrast\":\"#000\",\"alt\":\"#fff\"},\"fonts\":{\"ci\":{\"name\":\"ci\",\"family\":[\"-apple-system\",\"BlinkMacSystemFont\",\"Segoe UI\",\"Roboto\",\"Helvetica\",\"Arial\",\"sans-serif\",\"Apple Color Emoji\",\"Segoe UI Emoji\\\", \\\"Segoe UI Symbol\"],\"src\":[],\"weight\":800},\"regular\":{\"name\":\"regular\",\"family\":[\"-apple-system\",\"BlinkMacSystemFont\",\"Segoe UI\",\"Roboto\",\"Helvetica\",\"Arial\",\"sans-serif\",\"Apple Color Emoji\",\"Segoe UI Emoji\\\", \\\"Segoe UI Symbol\"],\"src\":[],\"weight\":300},\"bold\":{\"name\":\"bold\",\"family\":[\"-apple-system\",\"BlinkMacSystemFont\",\"Segoe UI\",\"Roboto\",\"Helvetica\",\"Arial\",\"sans-serif\",\"Apple Color Emoji\",\"Segoe UI Emoji\\\", \\\"Segoe UI Symbol\"],\"src\":[],\"weight\":700}}},\"base\":\"https:\\\/\\\/science-chatter.blogs.uni-hamburg.de\\\/wp-content\\\/plugins\\\/podlove-web-player\\\/web-player\\\/\"}}]);\n                podlovePlayer(player, \"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/podlove-web-player\/shortcode\/publisher\/864\", \"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/podlove-web-player\/shortcode\/config\/default\/theme\/default\").then(function() {\n                  player && player.classList.remove(\"podlove-web-player-loading\");\n                });\n              });\n            <\/script>\n            <style>\n              .podlove-web-player.podlove-web-player-loading {\n                opacity: 0;\n              }\n            <\/style>\n        \n\n\n\n<!--more-->\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-768x1024.jpg\" alt=\"Photograph of an old white and yellow observatory dome in the sun with blue sky around and a bench surrounded by green grass in the front with podcast recording equipment on it\" class=\"wp-image-915\" width=\"370\" height=\"492\" srcset=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-768x1024.jpg 768w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-225x300.jpg 225w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-1152x1536.jpg 1152w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-1536x2048.jpg 1536w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs6-scaled.jpg 1920w\" sizes=\"auto, (max-width: 370px) 100vw, 370px\" \/><figcaption>The very bench on which Pranjal and I were sitting and talking while Michael recorded <a href=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=878\" title=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=878\">Episode 4 with Caroline<\/a>.<\/figcaption><\/figure><\/div>\n\n\n\n<p>&#8220;I used to be an observational astronomer before I became a theoretical astrophysicist&#8221;, Pranjal tells me and I can see the sparkle in his eyes. He continues to explain how astronomers back in the days peered through a telescope eyepiece for countless hours without moving the tiniest bit, usually while it was freaking cold on long dark winter nights without any heating to avoid blurred images. I am sure I forgot most of the technical details I learned but I certainly did not forget the enthusiasm and excitement about all things astro that Pranjal got me infected with.<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-768x1024.jpg\" alt=\"MIchael with an audio recorder in one hand pointing at something high up with his other arm. Pranjal stands in the background and appear to be thinking. Both are located inside an old observatory dome and parts of a telescope can be seen.\" class=\"wp-image-916\" width=\"327\" height=\"436\" srcset=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-768x1024.jpg 768w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-225x300.jpg 225w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-1152x1536.jpg 1152w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-1536x2048.jpg 1536w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs2-scaled.jpg 1920w\" sizes=\"auto, (max-width: 327px) 100vw, 327px\" \/><figcaption>Michael has been here before but as an astro-enthusiast seemingly enjoyed the tour with Pranjal and Caroline.<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Did I already tell you how nice it was at the Observatory?<\/h3>\n\n\n\n<p>I already tried to describe the beautiful sunny afternoon on which we recorded episodes 4 and 5 at the Hamburg Observatory in <a href=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=878\" title=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/?p=878\">last week&#8217; post about Caroline&#8217;s episode<\/a>. However, if you think I am probably overselling the setting, take Pranjal&#8217;s word for it. In the very beginning of this episode you can listen to me talking to him while we are sitting on a bench in the sunny Observatory park. <\/p>\n\n\n\n<p>You will get a rough idea about my social awkwardness when hearing how I blatantly asked Pranjal how old he is after just a few minutes. To my defense: I was so incredibly stunned to learn about all the things he already did and achieved in his life. \ud83d\ude42<\/p>\n\n\n\n<p>For everyone who wants to jump right into the more scienc-y part in which Michael and Pranjal talk about dark matter, it starts at about 04:15.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/Michael-Pranjal-animation.gif\" alt=\"Michael and Pranjal in a staircase making some small movements\" class=\"wp-image-918\" width=\"436\" height=\"328\"\/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Content<\/h3>\n\n\n\n<p>In this podcast, Michael and Pranjal dive into the big physics mystery of dark matter. Why do astronomers assume there must be 5 times more matter in the Universe than we know about? This matter is called dark matter because it seems invisible using light, yet it makes a heavy presence felt via gravity. It&#8217;s not made up of any atoms or ions like our bodies, the Earth or stars. It also does not match any subatomic particle discovered so far in physics experiments. So, what is it? Take a listen to find out why Hamburg scientists are busy doing theory and experiments hunting for dark matter in the form of the &#8216;axion&#8217;.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"358\" src=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-1024x358.jpg\" alt=\"A panoramic view on the sunny park in Bergedorf in which the Hamburg Obersvatory is located: Trees and grass can be seen, also some footpaths and a couple of white and yellow old observatory domes.\" class=\"wp-image-917\" srcset=\"https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-1024x358.jpg 1024w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-300x105.jpg 300w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-768x268.jpg 768w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-1536x537.jpg 1536w, https:\/\/science-chatter.blogs.uni-hamburg.de\/wp-content\/uploads\/HHObs7-2048x716.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In our fifth episode, Pranjal Trivedi, astrophysicist and cosmologist as a postdoctoral researcher at the Hamburg Observatory and the Quantum Universe Cluster of Excellence, talks about dark matter and the ongoing quest of finding it.<\/p>\n","protected":false},"author":30,"featured_media":930,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,94],"tags":[],"class_list":["post-907","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podcast","category-podcast-season-1"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/posts\/907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/users\/30"}],"replies":[{"embeddable":true,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=907"}],"version-history":[{"count":20,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/posts\/907\/revisions"}],"predecessor-version":[{"id":935,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/posts\/907\/revisions\/935"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=\/wp\/v2\/media\/930"}],"wp:attachment":[{"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/science-chatter.blogs.uni-hamburg.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}