{"id":624,"date":"2022-04-27T17:43:23","date_gmt":"2022-04-27T15:43:23","guid":{"rendered":"https:\/\/www.hb9lc.ch\/?p=624"},"modified":"2022-04-30T15:19:27","modified_gmt":"2022-04-30T13:19:27","slug":"27-avril-anniversaire-de-samuel-morse","status":"publish","type":"post","link":"https:\/\/www.hb9lc.ch\/index.php\/2022\/04\/27\/27-avril-anniversaire-de-samuel-morse\/","title":{"rendered":"27 avril, anniversaire de Samuel Morse"},"content":{"rendered":"

Samuel Morse<\/h3>\n
\"\"

Samuel Morse<\/p><\/div>\n

Samuel Morse est<\/b> n\u00e9 le 27 avril 1791 \u00e0 Charlestown pr\u00e8s de Boston, Massachusetts.<\/span><\/span><\/p>\n

Peintre am\u00e9ricain et inventeur<\/b> il d\u00e9veloppa un t\u00e9l\u00e9graphe \u00e9lectrique (1832-35) ind\u00e9pendamment des efforts similaires en Europe. En 1838, il d\u00e9veloppa le code Morse<\/b>.\u00a0<\/span><\/span><\/p>\n

L’alphabet morse a \u00e9t\u00e9 cr\u00e9\u00e9<\/b> vers 1832\u00a0 alors qu’il travaillait sur la construction d’un t\u00e9l\u00e9graphe \u00e9lectrique. Jadis tr\u00e8s utilis\u00e9 pour les liaisons radios, ce code a \u00e9t\u00e9<\/b> abandonn\u00e9 pour les communications maritimes au profit d’un syst\u00e8me satellitaire depuis le 1er f\u00e9vrier 1999 (citation Wikip\u00e9dia )<\/span><\/span><\/p>\n

Utilisation du code SOS en morse:<\/h3>\n

Le signal SOS a \u00e9t\u00e9 choisi le 3 novembre 1906<\/b> par la Convention Radiot\u00e9l\u00e9graphique Internationale de Berlin pour remplacer le pr\u00e9c\u00e9dent signal de d\u00e9tresse CQD.<\/p>\n

Les trois lettres SOS ont \u00e9t\u00e9 choisies pour la simplicit\u00e9 de leur codage en code morse (. . . _ _ _ . . .).<\/p>\n

Ce signal est devenu le signal de d\u00e9tresse officiel le 1 juillet 1908<\/b>. En 1912, Le Titanic a \u00e9t\u00e9 l\u2019un des premiers navires en d\u00e9tresse \u00e0 utiliser le SOS en plus du CQD.<\/p>\n

.— — -.– . ..- -..- \/ .- -. -. .. …- . .-. … .- .. .-. . \/ … .- — ..- . .-.. -.-.–<\/h4>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Samuel Morse Samuel Morse est n\u00e9 le 27 avril 1791 \u00e0 Charlestown pr\u00e8s de Boston, Massachusetts. Peintre am\u00e9ricain et inventeur il d\u00e9veloppa un t\u00e9l\u00e9graphe \u00e9lectrique (1832-35) ind\u00e9pendamment des efforts similaires en Europe. En 1838, il d\u00e9veloppa le code Morse.\u00a0 L’alphabet …<\/span> Lire la suite →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[40],"class_list":["post-624","post","type-post","status-publish","format-standard","hentry","category-radioamateur","tag-radioamateur"],"_links":{"self":[{"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/posts\/624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/comments?post=624"}],"version-history":[{"count":1,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/posts\/624\/revisions"}],"predecessor-version":[{"id":626,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/posts\/624\/revisions\/626"}],"wp:attachment":[{"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/media?parent=624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/categories?post=624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hb9lc.ch\/index.php\/wp-json\/wp\/v2\/tags?post=624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}