{"id":217729,"date":"2025-07-12T17:03:44","date_gmt":"2025-07-12T22:03:44","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/07\/daniel-kleppner-physicist-who-brought-precision-to-gps-dies-at-92"},"modified":"2025-07-12T17:03:44","modified_gmt":"2025-07-12T22:03:44","slug":"daniel-kleppner-physicist-who-brought-precision-to-gps-dies-at-92","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/07\/daniel-kleppner-physicist-who-brought-precision-to-gps-dies-at-92","title":{"rendered":"Daniel Kleppner, Physicist Who Brought Precision to GPS, Dies at 92"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/daniel-kleppner-physicist-who-brought-precision-to-gps-dies-at-92.jpg\"><\/a><\/p>\n<p>Daniel Kleppner, an experimental physicist who helped to develop an atomic clock that became an essential part of global positioning systems, or GPS, and who also helped to discover a rare fundamental state of matter predicted by Albert Einstein and his fellow theoretical physicist Satyendra Nath Bose, died on June 16 in Palo Alto, Calif. He was 92.<\/p>\n<p>His wife, Beatrice, confirmed the death. She said he collapsed while visiting their daughter, Sofie Kleppner, and her son, Darwin, who was graduating from high school.<\/p>\n<p>It was in the mid-1950s, while he was doing a fellowship at the University of Cambridge in England, that Dr. Kleppner learned something surprising: It was possible, a tutor told him, to build a clock precise enough to detect the effects of gravity on time. Curious, he went in search of more information and read <a class=\"\" href=\"https:\/\/www.nytimes.com\/2011\/11\/07\/us\/norman-ramsey-dies-at-96-work-led-to-the-atomic-clock.html\" title=\"\">Norman Ramsey<\/a>\u2019s 1953 book \u201cNuclear Moments.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Daniel Kleppner, an experimental physicist who helped to develop an atomic clock that became an essential part of global positioning systems, or GPS, and who also helped to discover a rare fundamental state of matter predicted by Albert Einstein and his fellow theoretical physicist Satyendra Nath Bose, died on June 16 in Palo Alto, Calif. [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-217729","post","type-post","status-publish","format-standard","hentry","category-futurism"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/217729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=217729"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/217729\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=217729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=217729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=217729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}