{"id":5375,"date":"2024-02-21T08:19:53","date_gmt":"2024-02-21T01:19:53","guid":{"rendered":"https:\/\/wam.vn\/en\/?p=5375"},"modified":"2024-02-21T08:19:53","modified_gmt":"2024-02-21T01:19:53","slug":"why-some-of-the-rainbow-is-missing","status":"publish","type":"post","link":"https:\/\/wam.vn\/en\/why-some-of-the-rainbow-is-missing\/","title":{"rendered":"Why Some of the Rainbow is Missing"},"content":{"rendered":"<p><em><strong>TLDR: <\/strong>Discovering the universe&#8217;s secrets and searching for extraterrestrial life through spectroscopy, revealing the unique fingerprints of elements.<\/em><\/p>\n<p>This article is a summary of a You Tube video &#8220;Why Some of the Rainbow is Missing&#8221; by Be Smart<br \/>\n<iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gVZwdYZqCUI?si=xz2YSN3LvbrP-t5w\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3>Key Takeaways:<\/h3>\n<ol>\n<li><strong>Joseph von Fraunhofer&#8217;s Discovery<\/strong>: In the early 1800s, Fraunhofer observed missing parts of the rainbow, or dark lines across the spectrum, when sunlight passed through a prism.<\/li>\n<li><strong>Spectral Fingerprints<\/strong>: Scientists Gustav Kirchhoff and Robert Bunsen identified that different elements emit or absorb light at specific wavelengths, creating a unique pattern of spectral lines for each element.<\/li>\n<li><strong>Spectroscope Invention<\/strong>: Kirchhoff and Bunsen developed the spectroscope, an instrument to precisely study the light emitted or absorbed by elements.<\/li>\n<li><strong>Fraunhofer&#8217;s Lines Explained<\/strong>: The exact match of spectral lines from burning elements with Fraunhofer&#8217;s missing lines revealed that elements in the Sun absorb specific wavelengths of light.<\/li>\n<li><strong>Atomic Structure Insights<\/strong>: The unique spectral fingerprints of elements are tied to their atomic structure, specifically the arrangement and energy levels of electrons.<\/li>\n<li><strong>Emission and Absorption Spectra<\/strong>: Elements heated to high temperatures emit light at specific frequencies (emission spectrum), while the same elements absorb those frequencies in front of a light source (absorption spectrum).<\/li>\n<li><strong>Sunlight&#8217;s Missing Rainbow<\/strong>: The dark lines seen in the sunlight spectrum are due to elements in the Sun&#8217;s atmosphere absorbing specific wavelengths.<\/li>\n<li><strong>Spectroscopy&#8217;s Wide Applications<\/strong>: This technique not only decodes the composition of the Sun but also analyzes light from distant galaxies and studies the atmospheric composition of exoplanets.<\/li>\n<li><strong>Discovery of the Universe&#8217;s Expansion<\/strong>: Spectroscopy led to the discovery that the universe is expanding, based on the observation of redshifted light from distant galaxies.<\/li>\n<li><strong>Search for Extraterrestrial Life<\/strong>: Spectroscopy might help in finding signs of life on exoplanets by detecting unusual chemical balances in their atmospheres.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Discovering the universe&#8217;s secrets and searching for extraterrestrial life through spectroscopy, revealing the unique fingerprints of elements.<\/p>\n","protected":false},"author":3,"featured_media":5376,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-5375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-44","description-off"],"_links":{"self":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/5375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/comments?post=5375"}],"version-history":[{"count":1,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/5375\/revisions"}],"predecessor-version":[{"id":5377,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/5375\/revisions\/5377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/media\/5376"}],"wp:attachment":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/media?parent=5375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/categories?post=5375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/tags?post=5375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}