{"id":428,"date":"2017-05-15T11:49:35","date_gmt":"2017-05-15T08:49:35","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/chemtime\/?p=428"},"modified":"2017-06-01T14:29:40","modified_gmt":"2017-06-01T11:29:40","slug":"%d7%9e%d7%90%d7%96-%d7%95%d7%9e%d7%aa%d7%9e%d7%99%d7%93-%d7%a0%d7%99%d7%a1%d7%95-%d7%91%d7%a0%d7%99-%d7%94%d7%90%d7%93%d7%9d-%d7%9c%d7%94%d7%91%d7%99%d7%9f-%d7%90%d7%aa-%d7%94%d7%a2%d7%95%d7%9c%d7%9d","status":"publish","type":"post","link":"https:\/\/stweizmann.proj.ac.il\/chemtime\/?p=428","title":{"rendered":"\u05de\u05d0\u05d6 \u05d5\u05de\u05ea\u05de\u05d9\u05d3 \u05e0\u05d9\u05e1\u05d5 \u05d1\u05e0\u05d9 \u05d4\u05d0\u05d3\u05dd \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05e2\u05d5\u05dc\u05dd \u05e9\u05e1\u05d1\u05d9\u05d1\u05dd"},"content":{"rendered":"<div id=\"attachment_291\" style=\"width: 161px\" class=\"wp-caption alignright\"><img decoding=\"async\" aria-describedby=\"caption-attachment-291\" class=\"wp-image-291 size-full\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/EINSTEIN.gif\" alt=\"\u05d0\u05dc\u05d1\u05e8\u05d8 \u05d0\u05d9\u05d9\u05e0\u05e9\u05d8\u05d9\u05d9\u05df\" width=\"151\" height=\"143\" \/><p id=\"caption-attachment-291\" class=\"wp-caption-text\">\u05d0\u05dc\u05d1\u05e8\u05d8 \u05d0\u05d9\u05d9\u05e0\u05e9\u05d8\u05d9\u05d9\u05df<\/p><\/div>\n<p>\u05de\u05d0\u05d6 \u05d5\u05de\u05ea\u05de\u05d9\u05d3 \u05e0\u05d9\u05e1\u05d5 \u05d1\u05e0\u05d9 \u05d4\u05d0\u05d3\u05dd \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05e2\u05d5\u05dc\u05dd \u05e9\u05e1\u05d1\u05d9\u05d1\u05dd, \u05d0\u05da \u05db\u05d3\u05d9 \u05dc\u05e2\u05e9\u05d5\u05ea \u05d6\u05d0\u05ea \u05d4\u05d9\u05d4 \u05e2\u05dc\u05d9\u05d4\u05dd \u05dc\u05de\u05e6\u05d5\u05d0, \u05d0\u05d5 \u05dc\u05d4\u05de\u05e6\u05d9\u05d0,<br \/>\n\u05d4\u05e1\u05d1\u05e8\u05d9\u05dd \u05e9\u05d9\u05e7\u05e9\u05e8\u05d5 \u05d1\u05d9\u05df \u05ea\u05d5\u05e4\u05e2\u05d5\u05ea \u05d0\u05e9\u05e8 \u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05e0\u05e8\u05d0\u05d4 \u05db\u05d0\u05d9\u05dc\u05d5 \u05d0\u05d9\u05df \u05d1\u05d9\u05e0\u05d9\u05d4\u05df \u05db\u05dc \u05e7\u05e9\u05e8.<br \/>\n\u05d6\u05d5 \u05d1\u05e2\u05d9\u05d4 \u05d0\u05e9\u05e8 \u05d4\u05d9\u05d8\u05d9\u05d1 \u05dc\u05ea\u05d0\u05e8\u05d4 \u05d4\u05de\u05d3\u05e2\u05df \u05d4\u05e0\u05d5\u05d3\u05e2 \u05d0\u05dc\u05d1\u05e8\u05d8 \u05d0\u05d9\u05d9\u05e0\u05e9\u05d8\u05d9\u05d9\u05df (A, Einstein) \u05e9\u05db\u05ea\u05d1 \u05d1 \u20131938:<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4><\/h4>\n<h4><span style=\"color: #ff0000\">&quot;&#8230;\u05d1\u05de\u05d0\u05de\u05e6\u05d9\u05e0\u05d5 \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05de\u05e6\u05d9\u05d0\u05d5\u05ea \u05d0\u05e0\u05d5 \u05de\u05e9\u05d5\u05dc\u05d9\u05dd \u05dc\u05d0\u05d3\u05dd \u05d4\u05de\u05e0\u05e1\u05d4 \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05de\u05e0\u05d2\u05e0\u05d5\u05df \u05e9\u05dc \u05e9\u05e2\u05d5\u05df \u05e9\u05dc\u05d0 \u05e0\u05d9\u05ea\u05df \u05dc\u05e4\u05ea\u05d7\u05d5. \u05d4\u05d5\u05d0 \u05de\u05e1\u05ea\u05db\u05dc \u05d1\u05dc\u05d5\u05d7 \u05d4\u05e9\u05e2\u05d5\u05df, \u05e8\u05d5\u05d0\u05d4 \u05d0\u05ea \u05ea\u05e0\u05d5\u05e2\u05ea \u05d4\u05de\u05d7\u05d5\u05d2\u05d9\u05dd \u05d5\u05d0\u05e4\u05d9\u05dc\u05d5 \u05e9\u05d5\u05de\u05e2 \u05d0\u05ea \u05ea\u05e7\u05ea\u05d5\u05e7\u05d9 \u05d4\u05e9\u05e2\u05d5\u05df \u05d0\u05da \u05d0\u05d9\u05df \u05dc\u05d5 \u05db\u05dc \u05d3\u05e8\u05da \u05dc\u05e4\u05ea\u05d5\u05d7 \u05d0\u05d5\u05ea\u05d5. \u05d0\u05dd \u05d4\u05d5\u05d0 \u05e4\u05d9\u05e7\u05d7 \u05d1\u05de\u05d9\u05d5\u05d7\u05d3, \u05d4\u05d5\u05d0 \u05e2\u05e9\u05d5\u05d9 \u05dc\u05d9\u05e6\u05d5\u05e8 \u05d1\u05de\u05d5\u05d7\u05d5 \u05ea\u05de\u05d5\u05e0\u05d4 \u05db\u05dc\u05e9\u05d4\u05d9 \u05e9\u05dc \u05d4\u05de\u05e0\u05d2\u05e0\u05d5\u05df \u05d4\u05d0\u05d7\u05e8\u05d0\u05d9 \u05dc\u05db\u05dc \u05d4\u05ea\u05d5\u05e4\u05e2\u05d5\u05ea \u05e9\u05e6\u05e4\u05d4 \u05d1\u05d4\u05df, \u05d0\u05d1\u05dc \u05dc\u05e2\u05d5\u05dc\u05dd \u05d0\u05d9\u05df \u05d4\u05d5\u05d0 \u05d9\u05db\u05d5\u05dc \u05dc\u05d4\u05d9\u05d5\u05ea \u05d1\u05d8\u05d5\u05d7 \u05e9\u05d4\u05ea\u05de\u05d5\u05e0\u05d4 \u05e9\u05dc\u05d5 \u05d4\u05d9\u05d0 \u05d4\u05d9\u05d7\u05d9\u05d3\u05d4 \u05d4\u05d9\u05db\u05d5\u05dc\u05d4 \u05dc\u05d4\u05e1\u05d1\u05d9\u05e8 \u05d0\u05ea \u05ea\u05e6\u05e4\u05d9\u05d5\u05ea\u05d9\u05d5. \u05d4\u05d5\u05d0 \u05dc\u05e2\u05d5\u05dc\u05dd \u05dc\u05d0 \u05d9\u05d4\u05d9\u05d4 \u05de\u05e1\u05d5\u05d2\u05dc \u05dc\u05d4\u05e9\u05d5\u05d5\u05ea \u05d0\u05ea \u05d4\u05ea\u05de\u05d5\u05e0\u05d4 \u05e9\u05dc\u05d5 \u05e2\u05dd \u05d4\u05de\u05e6\u05d9\u05d0\u05d5\u05ea \u05d5\u05d9\u05ea\u05e8 \u05e2\u05dc \u05db\u05df, \u05d0\u05d9\u05df \u05d4\u05d5\u05d0 \u05de\u05e1\u05d5\u05d2\u05dc \u05dc\u05ea\u05d0\u05e8 \u05dc\u05e2\u05e6\u05de\u05d5 \u05d0\u05ea \u05d4\u05de\u05e9\u05de\u05e2\u05d5\u05ea \u05e9\u05dc \u05d4\u05e9\u05d5\u05d5\u05d0\u05d4 \u05d6\u05d5 &#8230;.&quot;<\/span><\/h4>\n<h3>\u05dc\u05de\u05d4 \u05d4\u05ea\u05db\u05d5\u05d5\u05df \u05d0\u05d9\u05d9\u05e0\u05e9\u05d8\u05d9\u05d9\u05df?<\/h3>\n<p>\u05db\u05d0\u05e9\u05e8 \u05de\u05d3\u05e2\u05df \u05de\u05ea\u05d1\u05d5\u05e0\u05df \u05d1\u05de\u05e2\u05e8\u05db\u05ea \u05db\u05dc\u05e9\u05d4\u05d9, \u05dc\u05d3\u05d5\u05d2\u05de\u05d4 \u05d1\u05e9\u05e2\u05d5\u05df, \u05d4\u05d5\u05d0 \u05e9\u05d5\u05d0\u05dc \u05d0\u05ea \u05e2\u05e6\u05de\u05d5 \u05e9\u05ea\u05d9 \u05e9\u05d0\u05dc\u05d5\u05ea \u05de\u05e8\u05db\u05d6\u05d9\u05d5\u05ea:<br \/>\n\u05de\u05de\u05d4 \u05de\u05d5\u05e8\u05db\u05d1\u05ea \u05d4\u05de\u05e2\u05e8\u05db\u05ea, \u05db\u05dc\u05d5\u05de\u05e8 \u05de\u05d4 \u05d4\u05df \u05d0\u05d1\u05e0\u05d9 \u05d4\u05d1\u05e0\u05d9\u05d9\u05df, \u05d4\u05e8\u05db\u05d9\u05d1\u05d9\u05dd \u05d4\u05d1\u05e1\u05d9\u05e1\u05d9\u05d9\u05dd, \u05d4\u05de\u05e8\u05db\u05d9\u05d1\u05d9\u05dd \u05d0\u05d5\u05ea\u05d4? \u05db\u05d9\u05e6\u05d3 \u05e4\u05d5\u05e2\u05dc\u05ea \u05d4\u05de\u05e2\u05e8\u05db\u05ea, \u05db\u05dc\u05d5\u05de\u05e8 \u05de\u05d4 \u05d4\u05dd \u05d4\u05e7\u05e9\u05e8\u05d9\u05dd (\u05e4\u05e2\u05d5\u05dc\u05d5\u05ea \u05d4\u05d2\u05d5\u05de\u05dc\u05d9\u05df \u05d0\u05d5 \u05d4\u05d0\u05d9\u05e0\u05d8\u05e8\u05d0\u05e7\u05e6\u05d9\u05d5\u05ea) \u05e9\u05d1\u05d9\u05df \u05d4\u05e8\u05db\u05d9\u05d1\u05d9\u05dd \u05d4\u05d1\u05e1\u05d9\u05e1\u05d9\u05d9\u05dd \u05d4\u05dc\u05dc\u05d5?<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-340 aligncenter\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/watch.gif\" alt=\"\u05e9\u05e2\u05d5\u05df \u05d9\u05d3 \" width=\"162\" height=\"216\" \/><br \/>\n\u05ea\u05d5\u05da \u05db\u05d3<img decoding=\"async\" class=\"size-full wp-image-315 alignright\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/mecw.gif\" alt=\"\u05e9\u05e2\u05d5\u05df \u05e2\u05ea\u05d9\u05e7 \" width=\"162\" height=\"97\" \/>\u05d9 \u05d4\u05e0\u05e1\u05d9\u05d5\u05df \u05dc\u05ea\u05ea \u05ea\u05e9\u05d5\u05d1\u05d5\u05ea \u05dc\u05e9\u05d0\u05dc\u05d5\u05ea \u05d0\u05dc\u05d5, \u05d4\u05d5\u05dc\u05db\u05ea \u05d5\u05de\u05e6\u05d8\u05d9\u05d9\u05e8\u05ea \u05d1\u05de\u05d5\u05d7\u05d5 \u05e9\u05dc \u05d4\u05de\u05d3\u05e2\u05df \u05ea\u05de\u05d5\u05e0\u05d4 \u05d1\u05e2\u05d6\u05e8\u05ea\u05d4 \u05d4\u05d5\u05d0 \u05de\u05e0\u05e1\u05d4 \u05dc\u05d4\u05e1\u05d1\u05d9\u05e8 \u05d0\u05ea \u05d4\u05ea\u05d5\u05e4\u05e2\u05d5\u05ea \u05d1\u05d4\u05df \u05d4\u05d1\u05d7\u05d9\u05df, \u05d1\u05d3\u05d5\u05d2\u05de\u05d4 \u05e9\u05dc\u05e0\u05d5 &#8211; \u05d0\u05ea \u05ea\u05e0\u05d5\u05e2\u05ea \u05d4\u05de\u05d7\u05d5\u05d2\u05d9\u05dd \u05d5\u05ea\u05e7\u05ea\u05d5\u05e7 \u05d4\u05e9\u05e2\u05d5\u05df.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u05d0\u05e0\u05d5 \u05d0\u05d5\u05de\u05e8\u05d9\u05dd \u05db\u05d9 \u05d4\u05de\u05d3\u05e2\u05df \u05d1\u05d5\u05e0\u05d4 \u05de\u05d5\u05d3\u05dc \u05d1\u05e2\u05d6\u05e8\u05ea\u05d5 \u05d9\u05e0\u05e1\u05d4 \u05dc\u05d4\u05e1\u05d1\u05d9\u05e8 \u05d0\u05ea \u05d4\u05ea\u05d5\u05e4\u05e2\u05d5\u05ea. \u05d4\u05e0\u05d9\u05e1\u05d5\u05d9 \u05d4\u05d1\u05d0 \u05d9\u05e2\u05d6\u05d5\u05e8 \u05dc\u05d4\u05de\u05d7\u05d9\u05e9 \u05d6\u05d0\u05ea.\u00a0<a href=\"https:\/\/stweizmann.proj.ac.il\/chemtime\/?p=435\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-292 size-full aligncenter\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/exic.gif\" alt=\"\u05e0\u05d9\u05e1\u05d5\u05d9 , \u05d4\u05de\u05e9\u05d9\u05db\u05d5 \u05dc\u05d3\u05e3 \u05d4\u05d1\u05d0 \" width=\"100\" height=\"83\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/stweizmann.proj.ac.il\/chemtime\/?p=402\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-673 alignright\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/abac.gif\" alt=\"\u05d7\u05d6\u05e8\u05d4\" width=\"72\" height=\"42\" \/><\/a> <a href=\"https:\/\/stweizmann.proj.ac.il\/chemtime\/?p=435\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-674\" src=\"https:\/\/stweizmann.proj.ac.il\/wp-content\/uploads\/sites\/35\/2017\/05\/afor.gif\" alt=\"\u05d4\u05de\u05e9\u05da\" width=\"72\" height=\"42\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u05de\u05d0\u05d6 \u05d5\u05de\u05ea\u05de\u05d9\u05d3 \u05e0\u05d9\u05e1\u05d5 \u05d1\u05e0\u05d9 \u05d4\u05d0\u05d3\u05dd \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05e2\u05d5\u05dc\u05dd \u05e9\u05e1\u05d1\u05d9\u05d1\u05dd, \u05d0\u05da \u05db\u05d3\u05d9 \u05dc\u05e2\u05e9\u05d5\u05ea \u05d6\u05d0\u05ea \u05d4\u05d9\u05d4 \u05e2\u05dc\u05d9\u05d4\u05dd \u05dc\u05de\u05e6\u05d5\u05d0, \u05d0\u05d5 \u05dc\u05d4\u05de\u05e6\u05d9\u05d0, \u05d4\u05e1\u05d1\u05e8\u05d9\u05dd \u05e9\u05d9\u05e7\u05e9\u05e8\u05d5 \u05d1\u05d9\u05df \u05ea\u05d5\u05e4\u05e2\u05d5\u05ea \u05d0\u05e9\u05e8 \u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05e0\u05e8\u05d0\u05d4 \u05db\u05d0\u05d9\u05dc\u05d5 \u05d0\u05d9\u05df \u05d1\u05d9\u05e0\u05d9\u05d4\u05df \u05db\u05dc \u05e7\u05e9\u05e8. \u05d6\u05d5 \u05d1\u05e2\u05d9\u05d4 \u05d0\u05e9\u05e8 \u05d4\u05d9\u05d8\u05d9\u05d1 \u05dc\u05ea\u05d0\u05e8\u05d4 \u05d4\u05de\u05d3\u05e2\u05df \u05d4\u05e0\u05d5\u05d3\u05e2 \u05d0\u05dc\u05d1\u05e8\u05d8 \u05d0\u05d9\u05d9\u05e0\u05e9\u05d8\u05d9\u05d9\u05df (A, &hellip; <a href=\"https:\/\/stweizmann.proj.ac.il\/chemtime\/?p=428\">\u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4  <span class=\"meta-nav\">&larr;<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-428","post","type-post","status-publish","format-standard","hentry","category-13"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u05de\u05d0\u05d6 \u05d5\u05de\u05ea\u05de\u05d9\u05d3 \u05e0\u05d9\u05e1\u05d5 \u05d1\u05e0\u05d9 \u05d4\u05d0\u05d3\u05dd \u05dc\u05d4\u05d1\u05d9\u05df \u05d0\u05ea \u05d4\u05e2\u05d5\u05dc\u05dd \u05e9\u05e1\u05d1\u05d9\u05d1\u05dd - \u05db\u05d9\u05de\u05d9\u05d4 \u05d1\u05de\u05e0\u05d4\u05e8\u05ea 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