{"id":8622,"date":"2019-09-20T08:24:16","date_gmt":"2019-09-19T22:24:16","guid":{"rendered":"https:\/\/scienceillustrated.com.au\/blog\/?p=8622"},"modified":"2019-09-20T08:24:38","modified_gmt":"2019-09-19T22:24:38","slug":"compressed-air-sonic-shock-waves-collide","status":"publish","type":"post","link":"https:\/\/scienceillustrated.com.au\/blog\/technology\/compressed-air-sonic-shock-waves-collide\/","title":{"rendered":"Compressed air: sonic shock waves collide"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8623\" src=\"https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2019\/09\/ScreenShot09158.jpg\" alt=\"NASA shock waves\" width=\"1631\" height=\"884\" srcset=\"https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2019\/09\/ScreenShot09158.jpg 1631w, https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2019\/09\/ScreenShot09158-300x163.jpg 300w, https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2019\/09\/ScreenShot09158-768x416.jpg 768w, https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2019\/09\/ScreenShot09158-1024x555.jpg 1024w\" sizes=\"(max-width: 1631px) 100vw, 1631px\" \/><\/p>\n<p>When a plane flies faster than the speed of sound, the pressure waves in front don\u2019t have time to flow around the aircraft and the air becomes compressed, eventually producing a shock wave, its energy discharge yielding the sonic \u2018boom\u2019 for which supersonic planes are famous.<\/p>\n<p>NASA has managed to capture this image of two such shock waves interfering like ripples on a pond, with the resulting variation of air density causing light to bend differently and so be observed as different colours.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When a plane flies faster than the speed of sound, the pressure waves in front don\u2019t have time to flow around the aircraft and the air becomes compressed, eventually producing a shock wave,&#8230;<\/p>\n","protected":false},"author":15,"featured_media":8623,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102,113,38,9],"tags":[72,888,889],"class_list":["post-8622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amazing-images","category-galleries","category-nasa","category-technology","tag-nasa-2","tag-sonic-boom","tag-supersonic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/8622"}],"collection":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/comments?post=8622"}],"version-history":[{"count":1,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/8622\/revisions"}],"predecessor-version":[{"id":8624,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/8622\/revisions\/8624"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/media\/8623"}],"wp:attachment":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/media?parent=8622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/categories?post=8622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/tags?post=8622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}