{"id":10828,"date":"2017-04-30T07:00:39","date_gmt":"2017-04-30T04:00:39","guid":{"rendered":"http:\/\/omathimatikos.gr\/?p=10828"},"modified":"2017-04-24T20:05:12","modified_gmt":"2017-04-24T17:05:12","slug":"%ce%bf-%ce%b3%cf%81%ce%af%cf%86%ce%bf%cf%82-%cf%84%ce%b7%cf%82-%ce%b7%ce%bc%ce%ad%cf%81%ce%b1%cf%82-%ce%bf%ce%b9-%ce%b7%ce%bb%ce%b9%ce%ba%ce%af%ce%b5%cf%82-%ce%b3%ce%b9","status":"publish","type":"post","link":"https:\/\/omathimatikos.gr\/?p=10828","title":{"rendered":"\u039f \u03b3\u03c1\u03af\u03c6\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b7\u03bc\u03ad\u03c1\u03b1\u03c2 \u2013  \u00ab\u039f\u03b9 \u0397\u03bb\u03b9\u03ba\u03af\u03b5\u03c2\u00bb    (\u03b3\u03b9\u03b1  \u03ba\u03b1\u03bb\u03bf\u03cd\u03c2 \u03bb\u03cd\u03c4\u03b5\u03c2)"},"content":{"rendered":"<h2><img data-attachment-id=\"7035\" data-permalink=\"https:\/\/omathimatikos.gr\/?attachment_id=7035\" data-orig-file=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?fit=622%2C702&amp;ssl=1\" data-orig-size=\"622,702\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"\u03c0\u03b1\u03c4\u03ad\u03c1\u03b1\u03c2 &#8211; \u03b3\u03c5\u03b9\u03bf\u03c2\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?fit=310%2C350&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?fit=464%2C524&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" class=\"alignleft  wp-image-7035\" src=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C-464x524.jpg?resize=270%2C305\" alt=\"\" width=\"270\" height=\"305\" srcset=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?resize=464%2C524&amp;ssl=1 464w, https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?resize=133%2C150&amp;ssl=1 133w, https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?resize=310%2C350&amp;ssl=1 310w, https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2017\/03\/35D0B594C9AACC508896683EBF859C9C.jpg?w=622&amp;ssl=1 622w\" sizes=\"(max-width: 270px) 100vw, 270px\" data-recalc-dims=\"1\" \/>\u0397 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5 <a href=\"http:\/\/omathimatikos.gr\/?p=10828&amp;preview=true\">\u03ba. \u03a6\u03c9\u03c4\u03af\u03bf\u03c5<\/a> \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1\u03bd \u03b4\u03b9\u03c8\u03ae\u03c6\u03b9\u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc, \u03c4\u03bf\u03c5\u00a0\u03bf\u03c0\u03bf\u03af\u03bf\u03c5 \u03b5\u03ac\u03bd \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03ad\u03c8\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03c8\u03b7\u03c6\u03af\u03b1 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03c2 \u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5\u00a0<a href=\"http:\/\/omathimatikos.gr\/?p=10828&amp;preview=true\">\u03b3\u03b9\u03bf\u03c5 \u03c4\u03bf\u03c5, \u039a\u03ce\u03c3\u03c4\u03b1<\/a>.<\/h2>\n<h2>\u0395\u03ac\u03bd \u03b1\u03c0\u03cc \u03ba\u03ac\u03b8\u03b5 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1, \u03c4\u03cc\u03c4\u03b5\u00a0\u03b7 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5 \u03b3\u03b9\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03b9\u03c3\u03bf\u03cd\u03c4\u03b1\u03b9 <a href=\"http:\/\/omathimatikos.gr\/?p=10828&amp;preview=true\">\u03bc\u03b5 \u03c4\u03bf 1\/4 \u03c4\u03b7\u03c2 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03ba. \u03a6\u03c9\u03c4\u03af\u03bf\u03c5<\/a>.<\/h2>\n<h2>\u03a0\u03bf\u03b9\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03b7\u03bb\u03b9\u03ba\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2;<\/h2>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>\u03a0\u03c1\u03bf\u03c4\u03ac\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\u00a0Carlo de Grandi<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0397 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5 \u03ba. \u03a6\u03c9\u03c4\u03af\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1\u03bd \u03b4\u03b9\u03c8\u03ae\u03c6\u03b9\u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc, \u03c4\u03bf\u03c5\u00a0\u03bf\u03c0\u03bf\u03af\u03bf\u03c5 \u03b5\u03ac\u03bd \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03ad\u03c8\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03c8\u03b7\u03c6\u03af\u03b1 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03c2 \u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5\u00a0\u03b3\u03b9\u03bf\u03c5 \u03c4\u03bf\u03c5, \u039a\u03ce\u03c3\u03c4\u03b1. \u0395\u03ac\u03bd \u03b1\u03c0\u03cc \u03ba\u03ac\u03b8\u03b5 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1, \u03c4\u03cc\u03c4\u03b5\u00a0\u03b7 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1 \u03c4\u03bf\u03c5 \u03b3\u03b9\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03b9\u03c3\u03bf\u03cd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf 1\/4 \u03c4\u03b7\u03c2 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03ba. \u03a6\u03c9\u03c4\u03af\u03bf\u03c5. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03b7\u03bb\u03b9\u03ba\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2; &nbsp; &nbsp; \u03a0\u03c1\u03bf\u03c4\u03ac\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\u00a0Carlo de Grandi<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[18],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u039f \u03b3\u03c1\u03af\u03c6\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b7\u03bc\u03ad\u03c1\u03b1\u03c2 \u2013 \u00ab\u039f\u03b9 \u0397\u03bb\u03b9\u03ba\u03af\u03b5\u03c2\u00bb  (\u03b3\u03b9\u03b1 \u03ba\u03b1\u03bb\u03bf\u03cd\u03c2 \u03bb\u03cd\u03c4\u03b5\u03c2) &#8211; 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