{"id":980,"date":"2016-08-04T23:48:40","date_gmt":"2016-08-04T18:18:40","guid":{"rendered":"http:\/\/abhinav.spsdarj.org\/?p=980"},"modified":"2016-08-04T23:48:40","modified_gmt":"2016-08-04T18:18:40","slug":"why-does-breaking-the-sound-barrier-create-a-sonic-boom","status":"publish","type":"post","link":"https:\/\/abhinavkr.com\/musings\/2016\/08\/why-does-breaking-the-sound-barrier-create-a-sonic-boom\/","title":{"rendered":"Why does breaking the sound barrier create a sonic boom?"},"content":{"rendered":"<blockquote class=\"reddit-embed-bq\" ><p><a href=\"https:\/\/www.reddit.com\/r\/explainlikeimfive\/comments\/4w43fg\/comment\/d63zwcb\/\">Comment<\/a><br \/> by<a href=\"https:\/\/www.reddit.com\/user\/Youre_Home_Early\/\">u\/Youre_Home_Early<\/a> from discussion<a href=\"https:\/\/www.reddit.com\/r\/explainlikeimfive\/comments\/4w43fg\/eli5_why_does_breaking_the_sound_barrier_create_a\/\"><no value><\/a><br \/> in<a href=\"https:\/\/www.reddit.com\/r\/explainlikeimfive\/\">explainlikeimfive<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/embed.reddit.com\/widgets.js\" charset=\"UTF-8\"><\/script><\/p>\n<p>Boom is really a misleading word for it because it implies something like an explosion &#8211; when really it&#8217;s more of a constant roar. It just sounds like a boom from land, because unlike normal sound, which would reach you from the plane constantly as it flies by, the boom is like the wake of a boat, only hitting you once for each pass.<\/p>\n<p>I think part of the reason this isn&#8217;t well known is because of all the photos of jets breaking the sound barrier.<\/p>\n<p><a href=\"http:\/\/res.cloudinary.com\/dk-find-out\/image\/upload\/q_80,w_1440\/A-iStock_000017498245Large_pxojdi.jpg\">http:\/\/res.cloudinary.com\/dk-find-out\/image\/upload\/q_80,w_1440\/A-iStock_000017498245Large_pxojdi.jpg<\/a><\/p>\n<div class=\"jetpack-video-wrapper\"><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/MUtH-Oo5RZQ?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/div>\n<p>That plane wasn&#8217;t going supersonic though. The cone happens at transonic speeds, so when the plane is accelerating, as it nears Mach 1 a shock cone can appear. You can tell in the video that it is very close to Mach 1 because there is no sonic boom and the sound from the plane appears just before it passes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Boom is really a misleading word for it because it implies something like an explosion &#8211; when really it&#8217;s more of a constant roar. It just sounds like a boom from land, because unlike normal sound, which would reach you from the plane constantly as it flies by, the boom is like the wake of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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":[4,14],"tags":[],"class_list":["post-980","post","type-post","status-publish","format-standard","hentry","category-knowledge","category-reddit"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p4KGvB-fO","jetpack-related-posts":[{"id":1923,"url":"https:\/\/abhinavkr.com\/musings\/2019\/11\/lung-sounds\/","url_meta":{"origin":980,"position":0},"title":"Lung Sounds","author":"MindBodyBlog","date":"November 28, 2019","format":false,"excerpt":"Below is a quick waveform depiction of most common breath sounds. Following that is a list of fast access audio clips of various lung sounds. Normal Vesicular Breath SoundThey have an inspiration\/expiratory ratio of 3 to 1 or I:E of 3:1. Bronchial Breath Sound Bronchovesicular Breath Sound CracklesCoarse Fine Wheeze\u2026","rel":"","context":"In &quot;Medical Stuff&quot;","block_context":{"text":"Medical Stuff","link":"https:\/\/abhinavkr.com\/musings\/category\/medical-stuff\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/abhinavkr.com\/musings\/wp-content\/uploads\/2019\/11\/Stethoscope-2-1.jpg?fit=900%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/abhinavkr.com\/musings\/wp-content\/uploads\/2019\/11\/Stethoscope-2-1.jpg?fit=900%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/abhinavkr.com\/musings\/wp-content\/uploads\/2019\/11\/Stethoscope-2-1.jpg?fit=900%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/abhinavkr.com\/musings\/wp-content\/uploads\/2019\/11\/Stethoscope-2-1.jpg?fit=900%2C1200&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":675,"url":"https:\/\/abhinavkr.com\/musings\/2015\/02\/paradoxical-poem\/","url_meta":{"origin":980,"position":1},"title":"Paradoxical Poem","author":"Abhinav","date":"February 8, 2015","format":"quote","excerpt":"Ladies and Gentlemen, skinny and stout, I'll tell you a tale I know nothing about; The Admission is free, so pay at the door, Now pull up a chair and sit on the floor One bright day in the middle of the night, Two dead boys got up to fight;\u2026","rel":"","context":"In &quot;Poems&quot;","block_context":{"text":"Poems","link":"https:\/\/abhinavkr.com\/musings\/category\/poems\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":831,"url":"https:\/\/abhinavkr.com\/musings\/2015\/06\/19-videos-to-help-you-impress-others\/","url_meta":{"origin":980,"position":2},"title":"19 Videos to Help You Impress Others","author":"Abhinav","date":"June 7, 2015","format":false,"excerpt":"1. Throw Playing Cards \u2013 Learn to throw playing cards with accuracy and velocity. 2. Flip a Pen \u2013 Learn how to spin a pen around your thumb like it is no big deal. 3. Moonwalk \u2013 Moonwalk like Michael Jackson. 4. Roll a Coin Across Your Knuckles\u00a0\u2013 Learn how\u2026","rel":"","context":"In &quot;Life stuff&quot;","block_context":{"text":"Life stuff","link":"https:\/\/abhinavkr.com\/musings\/category\/life-stuff\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":947,"url":"https:\/\/abhinavkr.com\/musings\/2016\/05\/from-a-therapists-office-wall\/","url_meta":{"origin":980,"position":3},"title":"From a therapist\u2019s office wall","author":"Abhinav","date":"May 31, 2016","format":false,"excerpt":"I don\u2019t like the phrase \u201cA cry for help.\u201d I just don\u2019t like how it sounds. When somebody says to me, \u201cI\u2019m thinking about suicide, I have a plan; I just need a reason not to do it,\u201d the last thing I see is helplessness. I think: Your depression has\u2026","rel":"","context":"In &quot;Life stuff&quot;","block_context":{"text":"Life stuff","link":"https:\/\/abhinavkr.com\/musings\/category\/life-stuff\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":683,"url":"https:\/\/abhinavkr.com\/musings\/2015\/02\/which-credit-cards-do-millionaires-possess\/","url_meta":{"origin":980,"position":4},"title":"Which credit cards do millionaires possess?","author":"Abhinav","date":"February 8, 2015","format":false,"excerpt":"Answer by Kyle Murao: I'm not sure if this one-ups David's answer, but I can say that it is certifiably available only to millionaires. Ladies & gentlemen, the J.P.Morgan Palladium Card: It's got your name laser-etched into it, rather than printed on those mere bourgeois plastic cards in raised lettering.\u2026","rel":"","context":"In &quot;Knowledge&quot;","block_context":{"text":"Knowledge","link":"https:\/\/abhinavkr.com\/musings\/category\/knowledge\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":815,"url":"https:\/\/abhinavkr.com\/musings\/2015\/04\/will-i-become-a-billionaire-if-i-am-determined-to-be-one-and-put-in-all-the-necessary-work-required\/","url_meta":{"origin":980,"position":5},"title":"Will I become a billionaire if I am determined to be one and put in all the necessary work required?","author":"Abhinav","date":"April 19, 2015","format":false,"excerpt":"Answer by Justine Musk:(Just to say: thank you, everybody, for the upvotes + the comments. I'm blown away -- and appreciative.)No.One of the many qualities that separate billionaires from the rest of us is their ability to ask the right questions.\u00a0 This is not the right question. *You're determined. So\u2026","rel":"","context":"In &quot;Life stuff&quot;","block_context":{"text":"Life stuff","link":"https:\/\/abhinavkr.com\/musings\/category\/life-stuff\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/posts\/980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/comments?post=980"}],"version-history":[{"count":1,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/posts\/980\/revisions"}],"predecessor-version":[{"id":981,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/posts\/980\/revisions\/981"}],"wp:attachment":[{"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/media?parent=980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/categories?post=980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/abhinavkr.com\/musings\/wp-json\/wp\/v2\/tags?post=980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}