{"id":365,"date":"2020-02-02T19:20:30","date_gmt":"2020-02-02T16:20:30","guid":{"rendered":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/?p=365"},"modified":"2021-02-15T18:00:49","modified_gmt":"2021-02-15T15:00:49","slug":"8-wood-properties","status":"publish","type":"post","link":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/2020\/02\/02\/8-wood-properties\/","title":{"rendered":"8.3. \u0399\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5"},"content":{"rendered":"<p><strong><span style=\"color: #000000\">8.3.1. \u03a0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1<\/span><\/strong><\/p>\n<p><span style=\"color: #000000\"><strong>\u0397 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf\u03bd \u03cc\u03b3\u03ba\u03bf \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03c1\u03b9\u03ad\u03c4\u03b1\u03b9 \u03c3\u03b5 gr\/cm<sup>3<\/sup><\/strong>. \u0397 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c2 <span style=\"text-decoration: underline\">\u03b4\u03b5\u03af\u03ba\u03c4\u03b7\u03c2 \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5<\/span>.<\/span><\/p>\n<p><span style=\"color: #000000\">\u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03cc\u03bc\u03c9\u03c2 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bf \u03cc\u03b3\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1, \u03c0\u03b1\u03af\u03c1\u03bd\u03bf\u03c5\u03bc\u03b5 <strong>\u03c3\u03c9\u03c3\u03c4\u03ac \u03c3\u03c5\u03b3\u03ba\u03c1\u03b9\u03c4\u03b9\u03ba\u03ac \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1<\/strong>, \u03bc\u03cc\u03bd\u03bf \u03cc\u03c4\u03b1\u03bd \u03c0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03c0\u03b5\u03c1\u03af \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03bc\u03b5 \u03cc\u03bc\u03bf\u03b9\u03b1 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1 \u03ae, \u03b1\u03ba\u03c1\u03b9\u03b2\u03ad\u03c3\u03c4\u03b5\u03c1\u03b1, \u03cc\u03c4\u03b1\u03bd \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 <strong>\u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5 \u201c\u03be\u03b7\u03c1\u03bf\u03cd\u201d \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf\u03bd \u201c\u03be\u03b7\u03c1\u03cc\u201d \u03cc\u03b3\u03ba\u03bf<\/strong>.<\/span><\/p>\n<p><span style=\"color: #000000\"><strong>\u0391\u03ba\u03cc\u03bc\u03b7 \u03cc\u03bc\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03be\u03cd\u03bb\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03ba\u03bf\u03c1\u03bc\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03bd\u03b1 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1,<\/strong> \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae <strong>\u03c4\u03bf \u03c3\u03bf\u03bc\u03c6\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03b1\u03b9\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf \u03b5\u03b3\u03ba\u03ac\u03c1\u03b4\u03b9\u03bf<\/strong>. <\/span><span style=\"color: #000000\">\u0386\u03c1\u03b1, \u03cc\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03b5\u03b3\u03ba\u03ac\u03c1\u03b4\u03b9\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03c3\u03c4\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03bb\u03b5\u03c4\u03ac\u03bc\u03b5, \u03c4\u03cc\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03b1\u03bc\u03ad\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.2. \u03a0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u039c\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bf\u03c0\u03c9\u03c3\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03bd\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03c3\u03b5 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae <strong>\u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03be\u03cd\u03bb\u03bf<\/strong>.<\/span><\/p>\n<p><span style=\"color: #000000\">\u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1 <span style=\"text-decoration: underline\">\u03b5\u03be\u03b1\u03c1\u03c4\u03ce\u03bd\u03c4\u03b1\u03b9 \u03cc\u03bb\u03b5\u03c2 \u03c3\u03c7\u03b5\u03b4\u03cc\u03bd \u03bf\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c6\u03bf\u03c1\u03bf\u03cd\u03bd \u03c4\u03b7 \u03c3\u03c4\u03b5\u03c1\u03b5\u03cc\u03c4\u03b7\u03c4\u03b1, \u03c4\u03b7 \u03c1\u03af\u03ba\u03bd\u03c9\u03c3\u03b7, \u03c4\u03b7\u03bd \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b2\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2 \u03c6\u03b8\u03bf\u03c1\u03ac\u03c2<\/span> \u03ba\u03c4\u03bb.<\/span><\/p>\n<p><span style=\"color: #000000\"><strong>\u0397 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03c1\u03ad\u03c3\u03ba\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03ba\u03c5\u03bc\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc<\/strong> <strong>60-200%<\/strong>. \u039c\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ba\u03bf\u03c0\u03ae \u03c4\u03bf\u03c5 \u03b4\u03ad\u03bd\u03c4\u03c1\u03bf\u03c5, \u03c4\u03bf \u03be\u03cd\u03bb\u03bf \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03be\u03b7\u03c1\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b5\u03bb\u03b1\u03c4\u03c4\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bf \u03cc\u03b3\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5.<\/span><\/p>\n<p><span style=\"color: #000000\">\u03a4\u03b1 \u03be\u03cd\u03bb\u03b1, \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03bf\u03cd \u03b8\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c0\u03bf\u03c3\u03cc \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1\u03c2. \u0394\u03b5\u03bd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03be\u03b5\u03c7\u03bd\u03ac\u03bc\u03b5, \u03b2\u03ad\u03b2\u03b1\u03b9\u03b1, \u03cc\u03c4\u03b9 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03ad\u03bd\u03b1 <strong>\u201c\u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03cc \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1\u201d, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03b1\u03bd\u03c4\u03b1\u03bb\u03bb\u03ac\u03c3\u03c3\u03b5\u03b9 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd \u03c4\u03bf\u03c5, \u03ad\u03c9\u03c2 \u03cc\u03c4\u03bf\u03c5 \u03b2\u03c1\u03b5\u03b8\u03b5\u03af \u03c3\u03b5 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03af\u03b1\u03c2 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc<\/strong>. \u0391\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03c4\u03c9\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03c9\u03bd \u03c4\u03c1\u03b9\u03ce\u03bd \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03ce\u03bd \u03c4\u03bf\u03c5, \u03b5\u03af\u03c4\u03b5 \u03bc\u03ad\u03c3\u03c9 \u03b4\u03b9\u03cc\u03b3\u03ba\u03c9\u03c3\u03b7\u03c2 \u03b5\u03af\u03c4\u03b5 \u03bc\u03ad\u03c3\u03c9 \u03c1\u03af\u03ba\u03bd\u03c9\u03c3\u03b7\u03c2.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.3. \u0395\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u0393\u03b5\u03bd\u03b9\u03ba\u03ac, \u03c4\u03b1 \u03be\u03cd\u03bb\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 <strong>\u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong>. \u0397 \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c5\u03c4\u03ae \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9, \u03cc\u03c3\u03bf \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b7 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5, \u03ba\u03b1\u03b9 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9, \u03cc\u03c4\u03b1\u03bd \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1.<\/span><\/p>\n<p><span style=\"color: #000000\">\u0397 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c3\u03ba\u03b7\u03b8\u03b5\u03af \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03be\u03cd\u03bb\u03bf, \u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03c5\u03c4\u03cc \u03bd\u03b1 \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9, \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd <strong>\u03b1\u03bd\u03c4\u03bf\u03c7\u03ae<\/strong> \u03c4\u03bf\u03c5.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.4. \u03a3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u039c\u03b5 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03cc\u03c1\u03bf \u03b5\u03bd\u03bd\u03bf\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd <strong>\u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03b2\u03ac\u03bb\u03bb\u03b5\u03b9 \u03c4\u03bf \u03be\u03cd\u03bb\u03bf, \u03cc\u03c4\u03b1\u03bd \u03c4\u03bf \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03b6\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03b1.<\/strong> <span style=\"text-decoration: underline\">\u038c\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf \u03b5\u03b3\u03ba\u03ac\u03c1\u03b4\u03b9\u03bf \u03be\u03cd\u03bb\u03bf \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03bc\u03b1\u03c2 \u03ba\u03b1\u03b9, \u03b5\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03cc\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ad\u03c7\u03b5\u03b9, \u03c4\u03cc\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5<\/span>. \u03a3\u03ba\u03bb\u03b7\u03c1\u03ac \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c3\u03ba\u03bb\u03b7\u03c1\u03ac \u03be\u03cd\u03bb\u03b1 \u03b8\u03b5\u03c9\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03c1\u03c5\u03c2, \u03b7 \u03bc\u03b5\u03bb\u03b9\u03ac \u03ae \u03ba\u03cc\u03ba\u03ba\u03b9\u03bd\u03b7 \u03bf\u03be\u03b9\u03ac \u03ba.\u03ac. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03bc\u03b1\u03bb\u03b1\u03ba\u03ac \u03be\u03cd\u03bb\u03b1 \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03b7 \u03b5\u03bb\u03ac\u03c4\u03b7, \u03b7 \u03b5\u03c1\u03c5\u03b8\u03c1\u03b5\u03bb\u03ac\u03c4\u03b7, \u03b7 \u03c8\u03b5\u03c5\u03b4\u03bf\u03c4\u03c3\u03bf\u03cd\u03b3\u03ba\u03b1 \u03ae \u03bb\u03ac\u03c1\u03b9\u03be, \u03b7 \u03c3\u03b7\u03bc\u03cd\u03b4\u03b1 \u03ba.\u03ac.<\/span><\/p>\n<p><span style=\"color: #000000\"><span style=\"text-decoration: underline\">\u03a4\u03b1 \u03bc\u03b1\u03bb\u03b1\u03ba\u03ac \u03be\u03cd\u03bb\u03b1 \u03c4\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03b6\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03b5\u03c5\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u2019 \u03cc,\u03c4\u03b9 \u03c4\u03b1 \u03c3\u03ba\u03bb\u03b7\u03c1\u03ac, \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03c5\u03bd \u03cc\u03bc\u03c9\u03c2 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03c6\u03b8\u03bf\u03c1\u03ac<\/span>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.5. \u0398\u03b5\u03c1\u03bc\u03bf\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u03a4\u03bf \u03be\u03cd\u03bb\u03bf \u03ad\u03c7\u03b5\u03b9 <strong>\u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b8\u03b5\u03c1\u03bc\u03bf\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong>, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03ac\u03c1\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03bc\u03bf\u03bd\u03c9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2. \u0397 \u03b8\u03b5\u03c1\u03bc\u03bf\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u03a9\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bf\u03c3\u03cc \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c3\u03bf\u03c5 \u03b5\u03bd\u03cc\u03c2 \u03ba\u03cd\u03b2\u03bf\u03c5 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 1 m<sup>3<\/sup>, \u03c3\u03b5 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03ce\u03c1\u03b1\u03c2, \u03cc\u03c4\u03b1\u03bd \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03b5\u03b4\u03c1\u03ce\u03bd \u03c4\u03bf\u03c5 \u03ba\u03cd\u03b2\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 1\u00b0C.<\/span><\/p>\n<p><a href=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/\u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae-\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-531 aligncenter\" src=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/\u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae-\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1.jpg\" alt=\"\" width=\"272\" height=\"266\" srcset=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/\u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae-\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1.jpg 591w, https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/\u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae-\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1-300x294.jpg 300w\" sizes=\"auto, (max-width: 272px) 100vw, 272px\" \/><\/a><\/p>\n<p><span style=\"color: #000000\"><strong>\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03cc 0,09 \u03ad\u03c9\u03c2 0,28 Kcal\/mh\u00b0C<\/strong>. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03b1\u03bd\u03c4\u03b9\u03bb\u03b7\u03c0\u03c4\u03cc \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf \u03be\u03cd\u03bb\u03bf, \u03b1\u03c2 \u03bb\u03ac\u03b2\u03bf\u03c5\u03bc\u03b5 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03bc\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b1\u03bb\u03bf\u03c5\u03bc\u03af\u03bd\u03b9\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 1400, \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c3\u03af\u03b4\u03b7\u03c1\u03bf 350, \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c4\u03bf\u03cd\u03b2\u03bb\u03b1 4,5 \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc 4!<\/span><\/p>\n<p><span style=\"color: #000000\">\u039f\u03b9 <strong>\u03ac\u03c1\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03bc\u03bf\u03bd\u03c9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2<\/strong> \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 <span style=\"text-decoration: underline\">\u03bf\u03c6\u03b5\u03af\u03bb\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03bf\u03c1\u03ce\u03b4\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae\u03c2 \u03c4\u03bf\u03c5<\/span> \u03ba\u03b1\u03b9 <span style=\"text-decoration: underline\">\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03b1\u03af\u03be\u03b5\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03c9\u03c2 \u03bf\u03b9\u03ba\u03bf\u03b4\u03bf\u03bc\u03b9\u03ba\u03bf\u03cd \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd<\/span>.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Thermal conductivity of metal and wood | Thermodynamics | Physics | Khan Academy\" width=\"760\" height=\"428\" src=\"https:\/\/www.youtube.com\/embed\/6f553BGaufI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #000000\"><strong>8.3.6. \u0391\u03ba\u03bf\u03c5\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u039f\u03b9 \u03be\u03cd\u03bb\u03b9\u03bd\u03b5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc <strong>\u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03bb\u03ae \u03c0\u03c1\u03cc\u03c3\u03bb\u03b7\u03c8\u03b7 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03b2\u03af\u03b2\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03ae\u03c7\u03bf\u03c5<\/strong>. \u03a7\u03ac\u03c1\u03b7 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03ba\u03bf\u03c5\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03bf \u03be\u03cd\u03bb\u03bf \u03c7<span style=\"text-decoration: underline\">\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03b8\u03b7\u03ba\u03b5 \u03b5\u03c5\u03c1\u03cd\u03c4\u03b1\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03bc\u03bf\u03c5\u03c3\u03b9\u03ba\u03ce\u03bd \u03bf\u03c1\u03b3\u03ac\u03bd\u03c9\u03bd<\/span>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.7. \u039f\u03c0\u03c4\u03b9\u03ba\u03ae \u03b5\u03bd\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\">\u039c\u03b5 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03cc\u03c1\u03bf \u03b5\u03bd\u03bd\u03bf\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd <strong>\u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf \u03be\u03cd\u03bb\u03bf \u03bb\u03cc\u03b3\u03c9 \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c3\u03c7\u03b5\u03b4\u03af\u03c9\u03bd \u03c4\u03bf\u03c5<\/strong>. \u03a4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u03be\u03cd\u03bb\u03c9\u03bd \u03ba\u03c5\u03bc\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c3\u03c0\u03c1\u03bf\u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03bf (\u03c0.\u03c7. \u03b5\u03c1\u03c5\u03b8\u03c1\u03b5\u03bb\u03ac\u03c4\u03b7), \u03ba\u03b9\u03c4\u03c1\u03b9\u03bd\u03bf\u03ba\u03ac\u03c3\u03c4\u03b1\u03bd\u03bf (\u03c0.\u03c7. \u03b4\u03c1\u03c5\u03c2, \u03c3\u03ba\u03bb\u03ae\u03b8\u03c1\u03b1 \u03ba.\u03ac.), \u03c0\u03c1\u03b1\u03c3\u03b9\u03bd\u03c9\u03c0\u03cc (\u03c0.\u03c7. \u03c8\u03b5\u03c5\u03b4\u03b1\u03ba\u03b1\u03ba\u03af\u03b1), \u03c3\u03ba\u03bf\u03cd\u03c1\u03bf \u03ba\u03b1\u03c3\u03c4\u03b1\u03bd\u03cc (\u03c0.\u03c7. \u03ba\u03b1\u03c1\u03c5\u03b4\u03b9\u03ac, \u03c1\u03b5\u03af\u03ba\u03b9), \u03b2\u03b9\u03bf\u03bb\u03b5\u03c4\u03af (\u03c0.\u03c7. \u03b4\u03b1\u03bc\u03b1\u03c3\u03ba\u03b7\u03bd\u03b9\u03ac, \u03c0\u03b1\u03bb\u03af\u03c3\u03c3\u03b1\u03bd\u03b4\u03c1\u03bf) \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bc\u03b1\u03cd\u03c1\u03bf (\u03ad\u03b2\u03b5\u03bd\u03bf\u03c2).<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-384 aligncenter\" src=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/Wood-286x300.jpg\" alt=\"\" width=\"477\" height=\"500\" srcset=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/Wood-286x300.jpg 286w, https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/Wood-975x1024.jpg 975w, https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/Wood-768x807.jpg 768w, https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-content\/uploads\/sites\/390\/2020\/02\/Wood.jpg 1186w\" sizes=\"auto, (max-width: 477px) 100vw, 477px\" \/><\/p>\n<p><span style=\"color: #000000\"><strong>\u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c4\u03bf \u03c3\u03bf\u03bc\u03c6\u03cc \u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03ac\u03bb\u03bb\u03b1 \u03bc\u03ad\u03c1\u03b7 \u03c4\u03bf\u03c5 \u03af\u03b4\u03b9\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5<\/strong>. \u0397 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b1\u03c5\u03c4\u03ae \u03c3\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03b4\u03ad\u03bd\u03c4\u03c1\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 (\u03c0.\u03c7. \u03b4\u03c1\u03c5\u03c2), \u03c3\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 (\u03c0.\u03c7. \u03bf\u03be\u03b9\u03ac, \u03ba\u03b1\u03c1\u03c5\u03b4\u03b9\u03ac) \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03b1\u03bc\u03b5\u03bb\u03b7\u03c4\u03ad\u03b1 (\u03c0.\u03c7. \u03b5\u03bb\u03ac\u03c4\u03b7).<\/span><\/p>\n<p><span style=\"color: #000000\"><strong>\u03a4\u03b1 \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 \u03be\u03cd\u03bb\u03b1 \u03c0\u03bf\u03b9\u03ba\u03af\u03bb\u03bb\u03bf\u03c5\u03bd<\/strong>. \u0391\u03bb\u03bb\u03bf\u03cd \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03bb\u03ac \u03ba\u03b1\u03b9 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ac \u03c3\u03c7\u03ad\u03b4\u03b9\u03b1, \u03b1\u03bb\u03bb\u03bf\u03cd \u03bc\u03b5 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03c5\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bb\u03bb\u03bf\u03cd \u03b6\u03c9\u03b7\u03c1\u03ac \u03ba\u03b1\u03b9 \u03b1\u03ba\u03b1\u03bd\u03cc\u03bd\u03b9\u03c3\u03c4\u03b1.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000\"><strong>8.3.8. \u03a6\u03c5\u03c3\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5<\/strong><\/span><\/p>\n<p><span style=\"color: #000000\"><strong>\u03a4\u03bf \u03b5\u03b3\u03ba\u03ac\u03c1\u03b4\u03b9\u03bf \u03be\u03cd\u03bb\u03bf<\/strong> \u03c0\u03bf\u03bb\u03bb\u03ce\u03bd \u03b5\u03b9\u03b4\u03ce\u03bd \u03be\u03c5\u03bb\u03b5\u03af\u03b1\u03c2 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 <strong>\u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b7 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b2\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2 \u03c6\u03b8\u03bf\u03c1\u03ac\u03c2<\/strong>. <\/span><span style=\"color: #000000\">\u0391\u03bd\u03c4\u03b9\u03b8\u03ad\u03c4\u03c9\u03c2, <strong>\u03c4\u03bf \u03c3\u03bf\u03bc\u03c6\u03cc<\/strong> \u03cc\u03bb\u03c9\u03bd \u03c4\u03c9\u03bd \u03be\u03cd\u03bb\u03c9\u03bd \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 <strong>\u03bc\u03b5\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<\/strong> \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2. <\/span><\/p>\n<p><span style=\"color: #000000\">\u03a4\u03ad\u03bb\u03bf\u03c2, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc \u03cc\u03c4\u03b9 <strong>\u03c4\u03bf \u03be\u03cd\u03bb\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03b5\u03cd\u03c6\u03bb\u03b5\u03ba\u03c4\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc<\/strong>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"72 - Densest Wood in the WORLD vs the Lightest! Exotic wood Showdown MUST SEE\" width=\"760\" height=\"428\" src=\"https:\/\/www.youtube.com\/embed\/Iw6L5ON0SYM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>\u0394\u03b5\u03af\u03c4\u03b5 \u03b5\u03b4\u03ce \u03bc\u03af\u03b1 <a href=\"https:\/\/www.wood-database.com\/\" target=\"_blank\" rel=\"noopener\">\u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/a> \u03bc\u03b5 \u03b5\u03af\u03b4\u03b7 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b1\u03c0\u03cc \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf \u03c4\u03bf\u03bd \u03ba\u03cc\u03c3\u03bc\u03bf<\/p>\n","protected":false},"excerpt":{"rendered":"<p>8.3.1. \u03a0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u0397 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf\u03bd \u03cc\u03b3\u03ba\u03bf \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03c1\u03b9\u03ad\u03c4\u03b1\u03b9 \u03c3\u03b5 gr\/cm3. \u0397 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c2 \u03b4\u03b5\u03af\u03ba\u03c4\u03b7\u03c2 \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03cc\u03bc\u03c9\u03c2 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bf \u03cc\u03b3\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5 &hellip; <\/p>\n<div class=\"more-link-wrapper\"><a href=\"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/2020\/02\/02\/8-wood-properties\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;8.3. \u0399\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03be\u03cd\u03bb\u03bf\u03c5&#8221;<\/span><\/a><\/div>\n","protected":false},"author":5414,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[10],"class_list":["post-365","post","type-post","status-publish","format-standard","hentry","category-k-8","tag-material-technology"],"_links":{"self":[{"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/posts\/365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/users\/5414"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/comments?post=365"}],"version-history":[{"count":0,"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/posts\/365\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/media?parent=365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/categories?post=365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/kpatsialou\/wp-json\/wp\/v2\/tags?post=365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}