{"id":530,"date":"2011-06-21T21:03:17","date_gmt":"2011-06-21T20:03:17","guid":{"rendered":"http:\/\/da.fydd.org\/blog\/?p=530"},"modified":"2011-06-21T21:03:17","modified_gmt":"2011-06-21T20:03:17","slug":"ar-y-gwifrau-ar-tonnau","status":"publish","type":"post","link":"https:\/\/da.fydd.org\/blog\/2011\/06\/21\/ar-y-gwifrau-ar-tonnau\/","title":{"rendered":"Ar y gwifrau a&#8217;r tonnau"},"content":{"rendered":"<p>Mae&#8217;r Cymry yn enwog am gerddoriaeth a chanu. Efallai fod hi&#8217;n addas felly mai Cymro ddyfeisiodd y meicroff\u00f4n modern sy&#8217;n galluogi ni i drosglwyddo a recordio sain. Dyma un o gampau y gwyddonodd <a href=\"http:\/\/en.wikipedia.org\/wiki\/David_E._Hughes\">David Edward Hughes<\/a>  (cysylltiad i&#8217;r erthygl saesneg ar Wikipedia am fod fwy o fanylion yno) sydd o dras Cymreig er nid yw&#8217;n hollol glir lle&#8217;i ganwyd.<\/p>\n<p>Fe wnaeth David Hughes lawer o waith arloesol ym myd cyfathrebu drwy wifrau gyda&#8217;r telegraff ac arbrofion gyda radio. Yn anffodus doedd ganddo ddim y gallu mathemategol i gofnodi a chyflwyno ei waith felly ni gafodd ei glod haeddiannol am flynyddoedd lawer wedi hynny.<\/p>\n<p>Ychydig iawn o wybodaeth sydd ar gael am y gwyddonydd Cymreig pwysig yma, felly dwi&#8217;n falch o weld fod llyfr newydd wedi ei gyhoeddi yn ddiweddar &#8211; <a href=\"http:\/\/www.imagesfromthepast.com\/BWWW.html\">Before We Went Wireless<\/a>. Rwy am holi os ydi&#8217;r cyhoeddwyr yn America yn fodlon danfon copi i Gymru. Mae&#8217;r llyfr ar gael o rhai dosbarthwyr yn Lloegr ond am bris eitha uchel &#8211; dros \u00a360.<\/p>\n<p>Mae gan awdur y llyfr gysylltiadau \u00e2 Chymru hefyd. Mae&#8217;n werth gwylio y fideo yma lle mae&#8217;r awdur, Ivor Hughes, yn esbonio ychydig am yr ymchwil hirfaith wnaeth e ar gyfer y llyfr.<\/p>\n<div class=\"epyt-video-wrapper\"><iframe loading=\"lazy\"  id=\"_ytid_82924\"  width=\"480\" height=\"360\"  data-origwidth=\"480\" data-origheight=\"360\" src=\"https:\/\/www.youtube.com\/embed\/3NpV6dqKaSs?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Mae&#8217;r Cymry yn enwog am gerddoriaeth a chanu. Efallai fod hi&#8217;n addas felly mai Cymro ddyfeisiodd y meicroff\u00f4n modern sy&#8217;n galluogi ni i drosglwyddo a recordio sain. Dyma un o gampau y gwyddonodd David Edward Hughes (cysylltiad i&#8217;r erthygl saesneg &hellip; <a href=\"https:\/\/da.fydd.org\/blog\/2011\/06\/21\/ar-y-gwifrau-ar-tonnau\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-530","post","type-post","status-publish","format-standard","hentry","category-gwyddoniaeth"],"_links":{"self":[{"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/posts\/530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/comments?post=530"}],"version-history":[{"count":2,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/posts\/530\/revisions"}],"predecessor-version":[{"id":532,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/posts\/530\/revisions\/532"}],"wp:attachment":[{"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/media?parent=530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/categories?post=530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/da.fydd.org\/blog\/wp-json\/wp\/v2\/tags?post=530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}