{"id":1807398,"date":"2022-05-24T17:11:40","date_gmt":"2022-05-24T21:11:40","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1807398"},"modified":"2022-05-24T17:11:40","modified_gmt":"2022-05-24T21:11:40","slug":"bartosz-ciechanowski-explains-gps","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2022\/05\/bartosz-ciechanowski-explains-gps\/","title":{"rendered":"Bartosz Ciechanowski Explains GPS"},"content":{"rendered":"

Bartosz Ciechanowski writes long, detailed explanatory articles<\/a> about physics, math and engineering that are full of interactive, animated diagrams. His article on GPS<\/a>, posted last January, digs down into all its fundamentals, from the principles of trilateration to the orbital mechanics of GPS satellites to exactly what a GPS signal consists of. \u201cIt\u2019s fascinating how much complexity and ingenuity is hidden behind the simple act of observing one\u2019s location in a mapping app on a smartphone. What I find particularly remarkable is how many different technological advancements were needed for GPS to work.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

Bartosz Ciechanowski writes long, detailed explanatory articles about physics, math and engineering that are full of interactive, animated diagrams. His article on GPS, posted last January, digs down into all its fundamentals, from the principles… More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[254],"tags":[],"class_list":["post-1807398","post","type-post","status-publish","format-link","hentry","category-gps","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1787444,"url":"https:\/\/www.maproomblog.com\/2019\/06\/the-economic-impact-of-gps-and-gps-outages\/","url_meta":{"origin":1807398,"position":0},"title":"The Economic Impact of GPS\u2014and GPS Outages","author":"Jonathan Crowe","date":"20 June 2019","format":"link","excerpt":"A new study quantifies the economic benefits of GPS: in the U.S. alone, it estimates around $1.4 trillion in economic activity resulting from private-sector GPS use, about half of that coming from improvements in the telecommunications sector. (Roughly a quarter came from the telematics sector, and 15 percent from location-based\u2026","rel":"","context":"In "Aviation"","block_context":{"text":"Aviation","link":"https:\/\/www.maproomblog.com\/category\/aviation\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/06\/faa-gps-outage-300x148.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1788156,"url":"https:\/\/www.maproomblog.com\/2019\/12\/gps-is-easy-to-disrupt-and-the-consequences-of-disruption-are-serious\/","url_meta":{"origin":1807398,"position":1},"title":"GPS Is Easy to Disrupt, and the Consequences of Disruption Are Serious","author":"Jonathan Crowe","date":"20 December 2019","format":"link","excerpt":"In an article in the December 2019 issue of\u00a0Scientific American, now available online, Paul Tullis looks at the problem of GPS hacking, or spoofing\u2014how easy it is to do, how vulnerable GPS is to it, and the consequences we\u2019d face if GPS was disrupted on a broad level. It\u2019s essential\u2026","rel":"","context":"In "GPS"","block_context":{"text":"GPS","link":"https:\/\/www.maproomblog.com\/category\/gps\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1789981,"url":"https:\/\/www.maproomblog.com\/2021\/01\/americas-overdependence-on-gps\/","url_meta":{"origin":1807398,"position":2},"title":"America’s Overdependence on GPS","author":"Jonathan Crowe","date":"25 January 2021","format":"link","excerpt":"GPS signals are relied upon by critical parts of our infrastructure, from transportation to communications to agriculture to financial markets. But those signals are easily spoofed or jammed and, at least in the United States, have no real backup (despite legislation mandating one by last year). Kate Murphy\u2019s opinion piece\u2026","rel":"","context":"In "GPS"","block_context":{"text":"GPS","link":"https:\/\/www.maproomblog.com\/category\/gps\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1788065,"url":"https:\/\/www.maproomblog.com\/2019\/11\/a-gps-spoofing-mystery-in-shanghai\/","url_meta":{"origin":1807398,"position":3},"title":"A GPS Spoofing Mystery in Shanghai","author":"Jonathan Crowe","date":"18 November 2019","format":"link","excerpt":"Someone is spoofing GPS signals in Shanghai, and we\u2019re not entirely sure why they\u2019re doing it, or how. One ostensibly bizarre theory: sand thieves trying to obfuscate illegal dredging by zonking out the GPS received by other ships\u2019 AIS transponders. But how they\u2019re redesignating ship (and bicycle) GPS locations into\u2026","rel":"","context":"In "GPS"","block_context":{"text":"GPS","link":"https:\/\/www.maproomblog.com\/category\/gps\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1787230,"url":"https:\/\/www.maproomblog.com\/2019\/04\/happy-gps-week-rollover\/","url_meta":{"origin":1807398,"position":4},"title":"Happy GPS Week Rollover!","author":"Jonathan Crowe","date":"5 April 2019","format":false,"excerpt":"It's probably overstating things to compare the GPS week rollover to the Y2K bug (The Next Web, The Verge) but it's hard not to see some parallels. In each case, it's a function of too little memory assigned to timestamps. One of the things that GPS satellites do is transmit\u2026","rel":"","context":"In "GPS"","block_context":{"text":"GPS","link":"https:\/\/www.maproomblog.com\/category\/gps\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1784874,"url":"https:\/\/www.maproomblog.com\/2018\/01\/war-games-disrupting-gps-in-the-western-u-s\/","url_meta":{"origin":1807398,"position":5},"title":"War Games Disrupting GPS in the Western U.S.","author":"Jonathan Crowe","date":"29 January 2018","format":"link","excerpt":"Meanwhile, aerial war games conducted by the USAF over Nevada will disrupt GPS in the western U.S. over the next few weeks. As\u00a0The Drive reports, \"the USAF is going to blackout GPS over the sprawling Nevada Test and Training Range to challenge aircrews and their weaponry under realistic fighting conditions.\u2026","rel":"","context":"In "GPS"","block_context":{"text":"GPS","link":"https:\/\/www.maproomblog.com\/category\/gps\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1807398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1807398"}],"version-history":[{"count":1,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1807398\/revisions"}],"predecessor-version":[{"id":1807399,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1807398\/revisions\/1807399"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1807398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1807398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1807398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}