{"id":15985,"date":"2025-04-24T16:18:38","date_gmt":"2025-04-24T16:18:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/current-affairs\/?p=15985"},"modified":"2025-04-24T16:20:02","modified_gmt":"2025-04-24T16:20:02","slug":"quantum-gravity-gradiometer","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/current-affairs\/quantum-gravity-gradiometer\/","title":{"rendered":"Quantum Gravity Gradiometer"},"content":{"rendered":"<ul>\n<li><strong>NASA proposes using Quantum Gravity Gradiometers (QGGs) on satellites:<\/strong> To monitor Earth&#8217;s changing mass distribution, particularly due to climate change effects.<\/li>\n<li><strong>QGGs leverage quantum principles:<\/strong> Atoms are cooled to near absolute zero and manipulated with lasers.<\/li>\n<li><strong>Detects minute gravitational changes:<\/strong> QGGs can measure acceleration differences as small as 10\u207b\u00b9\u2075 m\/s\u00b2 over 1 meter.<\/li>\n<li><strong>High precision mapping:<\/strong> Enables precise monitoring of water, ice, and geological material movement from low Earth orbit.<\/li>\n<li><strong>Measures gravity gradients:<\/strong> QGGs measure the rate of change of gravitational acceleration.<\/li>\n<li><strong>Applications beyond climate:<\/strong> Useful in resource exploration (detecting oil\/gas deposits) and detecting underground structures for geology, archaeology, and defence due to their high precision.<\/li>\n<li><strong>Atom interferometry:<\/strong> QGGs track ultracold atoms in free-fall, detecting phase shifts caused by gravity variations.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>NASA proposes using Quantum Gravity Gradiometers (QGGs) on satellites: To monitor Earth&#8217;s changing mass distribution, particularly due to climate change effects. QGGs leverage quantum principles: Atoms are cooled to near absolute zero and manipulated with lasers. Detects minute gravitational changes: QGGs can measure acceleration differences as small as 10\u207b\u00b9\u2075 m\/s\u00b2 over 1 meter. High precision &#8230; <a title=\"Quantum Gravity Gradiometer\" class=\"read-more\" href=\"https:\/\/exam.pscnotes.com\/current-affairs\/quantum-gravity-gradiometer\/\" aria-label=\"Read more about Quantum Gravity Gradiometer\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":16006,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[595],"tags":[1284],"class_list":["post-15985","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs","tag-23-04-25"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quantum Gravity Gradiometer - Current Affairs Exam<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/current-affairs\/quantum-gravity-gradiometer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quantum Gravity Gradiometer\" \/>\n<meta property=\"og:description\" content=\"NASA proposes using Quantum Gravity Gradiometers (QGGs) on satellites: To monitor Earth&#8217;s changing mass distribution, particularly due to climate change effects. QGGs leverage quantum principles: Atoms are cooled to near absolute zero and manipulated with lasers. Detects minute gravitational changes: QGGs can measure acceleration differences as small as 10\u207b\u00b9\u2075 m\/s\u00b2 over 1 meter. High precision ... 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QGGs leverage quantum principles: Atoms are cooled to near absolute zero and manipulated with lasers. Detects minute gravitational changes: QGGs can measure acceleration differences as small as 10\u207b\u00b9\u2075 m\/s\u00b2 over 1 meter. High precision ... 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