{"id":4218,"date":"2016-02-20T14:57:45","date_gmt":"2016-02-20T12:57:45","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=4218"},"modified":"2020-04-05T10:58:00","modified_gmt":"2020-04-05T07:58:00","slug":"%ce%bd%cf%8c%ce%bc%ce%bf%ce%b9-%cf%84%ce%b7%cf%82-%cf%85%ce%b4%cf%81%ce%bf%cf%83%cf%84%ce%b1%cf%84%ce%b9%ce%ba%ce%ae%cf%82-%cf%80%ce%af%ce%b5%cf%83%ce%b7%cf%82","status":"publish","type":"post","link":"https:\/\/viewonphysics.gr\/?p=4218","title":{"rendered":"\u039d\u03cc\u03bc\u03bf\u03b9 \u03c4\u03b7\u03c2 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2 &#8211; \u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf"},"content":{"rendered":"<p>\u0395\u03ba\u03c4\u03b5\u03bb\u03ad\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03ba\u03b1\u03bb\u03cd\u03c8\u03b5\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u039d\u03cc\u03bc\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2.<\/p>\n<p><span style=\"color: #0000ff;\"><strong>\u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7<\/strong> \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03af\u03b5\u03c3\u03b7 \u03c3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c4\u03c9\u03bd \u03c5\u03b3\u03c1\u03ce\u03bd \u03c0\u03bf\u03c5 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03bf\u03cd\u03bd.<\/span><\/p>\n<p>\u0398\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03c0\u03ce\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b7 \u03c5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03b1\u03c0\u03cc:<\/p>\n<ul>\n<li><span style=\"color: #008000;\">\u03a4\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2<\/span><\/li>\n<li><span style=\"color: #008000;\">\u03a4\u03b7\u03bd \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c5\u03b3\u03c1\u03bf\u03cd<\/span><\/li>\n<li><span style=\"color: #008000;\">\u03a4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2<\/span><\/li>\n<\/ul>\n<p><iframe loading=\"lazy\" src=\"https:\/\/phet.colorado.edu\/sims\/html\/under-pressure\/latest\/under-pressure_en.html\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" width=\"750\" height=\"580\"><\/iframe><\/p>\n<p><span style=\"font-size: 14pt; color: #008000;\"><strong>\u03a4\u03bf \u0392\u03ac\u03b8\u03bf\u03c2<\/strong><\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 1<\/strong><\/span><\/p>\n<p>\u03a3\u03c4\u03bf \u03c0\u03b9\u03bd\u03b1\u03ba\u03ac\u03ba\u03b9 \u03b4\u03b5\u03be\u03b9\u03ac \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c4\u03bc\u03bf\u03c3\u03c6\u03b1\u03b9\u03c1\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 (\u03ba\u03bb\u03b9\u03ba \u03c3\u03c4\u03bf Off) \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf Ruler \u03ba\u03b1\u03b9 \u03c4\u03bf Grid (\u03ba\u03bb\u03b9\u03ba \u03c3\u03c4\u03b1 \u03ba\u03c5\u03ba\u03bb\u03ac\u03ba\u03b9\u03b1). \u039c\u03b5 \u03b4\u03b9\u03b1\u03b4\u03bf\u03c7\u03b9\u03ba\u03ac \u03ba\u03bb\u03b9\u03ba \u03c3\u03c4\u03b7\u03bd \u03ba\u03ac\u03bd\u03bf\u03c5\u03bb\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03ac\u03bd\u03c9 \u03b2\u03c1\u03cd\u03c3\u03b7\u03c2 \u03b3\u03b5\u03bc\u03af\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03bd\u03b5\u03c1\u03cc \u03c4\u03b7 \u03b4\u03b5\u03be\u03b1\u03bc\u03b5\u03bd\u03ae. \u0395\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf 0 \u03c4\u03bf\u03c5 \u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd.<br \/>\n<!--more--><br \/>\n<span style=\"color: #000080; font-size: 12pt;\"><strong>\u0392\u03ae\u03bc\u03b1 2<\/strong><\/span><\/p>\n<p>\u03a3\u03cd\u03c1\u03b5\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b1\u03bd\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03c3\u03c4\u03b1 \u03b4\u03b9\u03b1\u03b4\u03bf\u03c7\u03b9\u03ba\u03ac \u03b2\u03ac\u03b8\u03b7 \u03c0\u03bf\u03c5 \u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 (\u03ba\u03bb\u03b9\u03ba <a href=\"http:\/\/wp.me\/a4sIra-16b\" target=\"_blank\" rel=\"noopener noreferrer\">\u03b5\u03b4\u03ce <\/a>\u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03ac\u03c1\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2) \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2. \u03a3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03ce\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c0\u03bf\u03c5 \u03c4\u03c5\u03c0\u03ce\u03c3\u03b1\u03c4\u03b5.<\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 3<\/strong><\/span><\/p>\n<p>\u03a3\u03c4\u03bf \u03c4\u03b5\u03c4\u03c1\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b2\u03ac\u03bb\u03c4\u03b5 \u03c4\u03b1 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03c4\u03af\u03bc\u03ce\u03bd \u03c4\u03bf\u03c5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae.<\/p>\n<p><span style=\"color: #000080; font-size: 12pt;\"><strong>\u0392\u03ae\u03bc\u03b1 4<\/strong><\/span><\/p>\n<p>\u0393\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c3\u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03c4\u03bf \u03c3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03ac \u03c3\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u0392\u03ac\u03b8\u03bf\u03c5\u03c2.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 14pt; color: #008000;\"><strong>\u0397 \u03a0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03a5\u03b3\u03c1\u03bf\u03cd<\/strong><\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 1<\/strong><\/span><\/p>\n<p>\u03a0\u03b1\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03ba\u03bf\u03c5\u03bc\u03c0\u03ac\u03ba\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 (\u03ba\u03ac\u03c4\u03c9 \u03b4\u03b5\u03be\u03b9\u03ac) \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 \u0392\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 1 \u03c4\u03b7\u03c2 \u03c0\u03c1\u03bf\u03b7\u03b3\u03bf\u03cd\u03bc\u03b5\u03bd\u03b7\u03c2 \u03b5\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03bc\u03b5 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf \u03cc\u03bc\u03c9\u03c2 \u03c4\u03ce\u03c1\u03b1 \u03c4\u03bf\u03bd Ruler.<\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 2<\/strong><\/span><\/p>\n<p>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b1\u03bd\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03c3\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b8\u03ad\u03c3\u03b7, \u03c0.\u03c7. \u03c3\u03b5 \u03b2\u03ac\u03b8\u03bf\u03c2 2m, \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03c9\u03bd \u03c0\u03c5\u03ba\u03bd\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd (Fluid Density) \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2, \u03b4\u03ce\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03cd\u03bb\u03bb\u03bf\u03c5 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 (\u03ba\u03bb\u03b9\u03ba <a href=\"http:\/\/wp.me\/a4sIra-16s\" target=\"_blank\" rel=\"noopener noreferrer\">\u03b5\u03b4\u03ce<\/a> \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03ac\u03c1\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2). \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03b2\u03b5\u03bb\u03ac\u03ba\u03b9\u03b1 \u03c3\u03c4\u03bf Fluid Denstity \u03b3\u03b9\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03b5\u03c4\u03b5\u03c1\u03b7 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03c5\u03ba\u03bd\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd.<\/p>\n<p><span style=\"color: #000080;\"><strong><span style=\"font-size: 12pt;\">\u0392\u03ae\u03bc\u03b1 3<\/span><\/strong><\/span><\/p>\n<p>\u03a3\u03c4\u03bf \u03c4\u03b5\u03c4\u03c1\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b2\u03ac\u03bb\u03c4\u03b5 \u03c4\u03b1 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03c4\u03af\u03bc\u03ce\u03bd \u03c4\u03bf\u03c5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae.<\/p>\n<p><span style=\"color: #000080; font-size: 12pt;\"><strong>\u0392\u03ae\u03bc\u03b1 4<\/strong><\/span><\/p>\n<p>\u0393\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c3\u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03c4\u03bf \u03c3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03ac \u03c3\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03a0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03c5\u03b3\u03c1\u03bf\u03cd.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #008000;\"><strong><span style=\"font-size: 14pt;\">\u0397 \u0395\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03c4\u03b7\u03c2 \u0392\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2<\/span><\/strong><\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 1<\/strong><\/span><\/p>\n<p>\u03a0\u03b1\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03ba\u03bf\u03c5\u03bc\u03c0\u03ac\u03ba\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 (\u03ba\u03ac\u03c4\u03c9 \u03b4\u03b5\u03be\u03b9\u03ac) \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 \u0392\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 1 \u03c4\u03b7\u03c2 1\u03b7\u03c2 \u03b5\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03bc\u03b5 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf \u03ba\u03b1\u03b9 \u03c0\u03ac\u03bb\u03b9 \u03c4\u03bf\u03bd Ruler.<\/p>\n<p><span style=\"font-size: 12pt; color: #000080;\"><strong>\u0392\u03ae\u03bc\u03b1 2<\/strong><\/span><\/p>\n<p>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b1\u03bd\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03c3\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b8\u03ad\u03c3\u03b7, \u03c0.\u03c7. \u03c3\u03b5 \u03b2\u03ac\u03b8\u03bf\u03c2 2m, \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03b7\u03c2 \u0392\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 (Gravity) \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2, \u03b4\u03ce\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 g \u03c0\u03bf\u03c5 \u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03cd\u03bb\u03bb\u03bf\u03c5 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 (\u03ba\u03bb\u03b9\u03ba <a href=\"http:\/\/wp.me\/a4sIra-16r\" target=\"_blank\" rel=\"noopener noreferrer\">\u03b5\u03b4\u03ce<\/a> \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03ac\u03c1\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2). \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03b2\u03b5\u03bb\u03ac\u03ba\u03b9\u03b1 \u03c3\u03c4\u03bf Gravity \u03b3\u03b9\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03b5\u03c4\u03b5\u03c1\u03b7 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03c5\u03ba\u03bd\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd.<\/p>\n<p><span style=\"color: #000080;\"><strong><span style=\"font-size: 12pt;\">\u0392\u03ae\u03bc\u03b1 3<\/span><\/strong><\/span><\/p>\n<p>\u03a3\u03c4\u03bf \u03c4\u03b5\u03c4\u03c1\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b2\u03ac\u03bb\u03c4\u03b5 \u03c4\u03b1 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03c4\u03af\u03bc\u03ce\u03bd \u03c4\u03bf\u03c5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae.<\/p>\n<p><span style=\"color: #000080; font-size: 12pt;\"><strong>\u0392\u03ae\u03bc\u03b1 4<\/strong><\/span><\/p>\n<p>\u0393\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c3\u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03c4\u03bf \u03c3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03ac \u03c3\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u0395\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u0392\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2.<\/p>\n<p>&nbsp;<\/p>\n<p>\u0393\u03b9\u03ac\u03bd\u03bd\u03b7\u03c2 \u0393\u03b1\u03ca\u03c3\u03af\u03b4\u03b7\u03c2<\/p>\n<p><a href=\"mailto&#58;&#103;&#97;&#x69;&#x73;&#x69;&#x64;&#x69;&#x73;&#x40;viewonp&#104;&#121;&#x73;&#x69;&#x63;&#x73;&#x2e;&#x67;&#x72;\">&#x67;ai&#x73;id&#x69;s&#64;&#x76;ie&#x77;on&#x70;hy&#x73;&#105;c&#x73;&#46;g&#x72;<\/a><\/p>\n<p><span style=\"color: #333333;\"><a href=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/03\/img_1494.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/03\/img_1494.jpg\" alt=\"img_1494\" width=\"140\" height=\"133\"><\/a> <\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0395\u03ba\u03c4\u03b5\u03bb\u03ad\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03ba\u03b1\u03bb\u03cd\u03c8\u03b5\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u039d\u03cc\u03bc\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03a0\u03af\u03b5\u03c3\u03b7\u03c2. \u03a5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03af\u03b5\u03c3\u03b7 \u03c3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c4\u03c9\u03bd \u03c5\u03b3\u03c1\u03ce\u03bd \u03c0\u03bf\u03c5 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03bf\u03cd\u03bd. \u0398\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03c0\u03ce\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b7 \u03c5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03b1\u03c0\u03cc: \u03a4\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03a4\u03b7\u03bd \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c5\u03b3\u03c1\u03bf\u03cd \u03a4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03a4\u03bf \u0392\u03ac\u03b8\u03bf\u03c2 \u0392\u03ae\u03bc\u03b1 1 \u03a3\u03c4\u03bf \u03c0\u03b9\u03bd\u03b1\u03ba\u03ac\u03ba\u03b9 \u03b4\u03b5\u03be\u03b9\u03ac \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c4\u03bc\u03bf\u03c3\u03c6\u03b1\u03b9\u03c1\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 (\u03ba\u03bb\u03b9\u03ba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2970,"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,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6,3],"tags":[29,14,56],"class_list":["post-4218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-6","category-3","tag-29","tag-14","tag-56"],"jetpack_featured_media_url":"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/02\/\u03c5\u03b4\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae-7.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4sIra-162","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/posts\/4218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4218"}],"version-history":[{"count":21,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/posts\/4218\/revisions"}],"predecessor-version":[{"id":7750,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/posts\/4218\/revisions\/7750"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=\/wp\/v2\/media\/2970"}],"wp:attachment":[{"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/viewonphysics.gr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}