{"id":1966,"date":"2016-09-15T11:29:02","date_gmt":"2016-09-15T08:29:02","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/energy\/?page_id=1966"},"modified":"2017-03-02T13:56:14","modified_gmt":"2017-03-02T11:56:14","slug":"%d7%9e%d7%94%d7%99-%d7%97%d7%a9%d7%99%d7%91%d7%94-%d7%91%d7%a1%d7%93%d7%a8%d7%99-%d7%92%d7%95%d7%93%d7%9c","status":"publish","type":"page","link":"https:\/\/stweizmann.proj.ac.il\/energy\/%d7%9e%d7%94%d7%99-%d7%97%d7%a9%d7%99%d7%91%d7%94-%d7%91%d7%a1%d7%93%d7%a8%d7%99-%d7%92%d7%95%d7%93%d7%9c\/","title":{"rendered":"\u05de\u05d4\u05d9 \u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc?"},"content":{"rendered":"<p>\u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05dc\u05d0 \u05de\u05e2\u05d5\u05e0\u05d9\u05d9\u05e0\u05d9\u05dd \u05d1\u05d7\u05d9\u05e9\u05d5\u05d1 \u05de\u05d3\u05d5\u05d9\u05e7, \u05d0\u05dc\u05d0 \u05e8\u05d5\u05e6\u05d9\u05dd<strong><span style=\"color: #800000\"> \u05dc\u05e7\u05d1\u05dc \u05d4\u05e2\u05e8\u05db\u05d4 \u05dc\u05d2\u05d1\u05d9 \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e4\u05e2\u05d4<\/span><\/strong>. \u05de\u05d9\u05d5\u05de\u05e0\u05d5\u05ea \u05d6\u05d0\u05ea, \u05e9\u05dc &quot;<strong><span style=\"color: #804000\">\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc<\/span><\/strong>&quot;, \u05de\u05d0\u05e4\u05e9\u05e8\u05ea \u05d1\u05d3\u05d9\u05e7\u05ea \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05e8\u05e2\u05d9\u05d5\u05df, \u05d1\u05d3\u05d9\u05e7\u05ea \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05d5\u05ea \u05de\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd (\u05d0\u05dd \u05d0\u05d9\u05df \u05d8\u05e2\u05d5\u05ea \u05e2\u05e7\u05e8\u05d5\u05e0\u05d9\u05ea), \u05d5\u05db\u05d5'.<\/p>\n<p>\u05d1\u05de\u05e7\u05e8\u05d4 \u05db\u05d6\u05d4, \u05de\u05e1\u05e4\u05d9\u05e7 \u05dc\u05d3\u05e2\u05ea \u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc \u05e9\u05dc \u05d4\u05e0\u05ea\u05d5\u05e0\u05d9\u05dd, \u05d5\u05dc\u05d0 \u05de\u05e1\u05e4\u05e8\u05d9\u05dd \u05d5\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd \u05de\u05d3\u05d5\u05d9\u05e7\u05d9\u05dd.<\/p>\n<p><strong><span style=\"color: #800000\">\u05e0\u05d5\u05d7 \u05dc\u05d1\u05e6\u05e2 \u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd \u05de\u05ea\u05de\u05d8\u05d9\u05d9\u05dd \u05dc\u05d4\u05e2\u05e8\u05db\u05ea \u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc, \u05d1\u05d0\u05de\u05e6\u05e2\u05d5\u05ea \u05d7\u05d6\u05e7\u05d5\u05ea \u05e9\u05dc 10 (\u05d4\u05db\u05e4\u05dc\u05d4 \u05d1 10 \u05d4\u05d9\u05d0 \u05d4\u05d5\u05e1\u05e4\u05ea 0 \u05de\u05d9\u05de\u05d9\u05df \u05dc\u05de\u05e1\u05e4\u05e8).<\/span><\/strong><\/p>\n<p>\u05dc\u05e0\u05d5\u05d7\u05d9\u05d5\u05ea, \u05e0\u05d4\u05d5\u05d2 \u05dc\u05ea\u05ea \u05e9\u05de\u05d5\u05ea \u05dc\u05d7\u05d6\u05e7\u05d5\u05ea \u05e9\u05dc 10, \u05d1\u05db\u05e4\u05d5\u05dc\u05d5\u05ea \u05e9\u05dc 1,000.<\/p>\n<p>\u05d1\u05d8\u05d1\u05dc\u05d4, \u05de\u05d5\u05e4\u05d9\u05e2\u05d9\u05dd \u05d4\u05de\u05e1\u05e4\u05e8\u05d9\u05dd \u05d4\u05de\u05d1\u05d8\u05d0\u05d9\u05dd \u05d0\u05ea \u05d4\u05d7\u05d6\u05e7\u05d5\u05ea \u05e9\u05dc 10, \u05e2\u05dd \u05e9\u05de\u05d5\u05ea\u05d9\u05d4\u05dd \u05d4\u05de\u05e7\u05d5\u05d1\u05dc\u05d9\u05dd:<\/p>\n<table class=\"tg\">\n<tbody>\n<tr>\n<th class=\"tg-031e\"><span style=\"color: #804000\">\u05d4\u05de\u05e1\u05e4\u05e8<\/span><\/th>\n<th class=\"tg-031e\"><span style=\"color: #804000\">\u05db\u05ea\u05d9\u05d1\u05d4 \u05d1\u05d7\u05d6\u05e7\u05d5\u05ea \u05e9\u05dc 10<\/span><\/th>\n<th class=\"tg-yw4l\"><span style=\"color: #804000\">\u05e9\u05dd \u05d1\u05e2\u05d1\u05e8\u05d9\u05ea<\/span><\/th>\n<th class=\"tg-yw4l\"><span style=\"color: #804000\">\u05e9\u05dd \u05d1\u05d0\u05e0\u05d2\u05dc\u05d9\u05ea<\/span><\/th>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,000,000,000,000,000,000,001<\/td>\n<td class=\"tg-yw4l\">10-24<\/td>\n<td class=\"tg-yw4l\">\u05d9\u05d5\u05e7\u05d8\u05d5<\/td>\n<td class=\"tg-yw4l\">Yocto<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,000,000,000,000,000,001<\/td>\n<td class=\"tg-yw4l\">10-21<\/td>\n<td class=\"tg-yw4l\">\u05d6\u05b6\u05e4\u05bc\u05d8\u05d5<\/td>\n<td class=\"tg-yw4l\">Zepto<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,000,000,000,000,001<\/td>\n<td class=\"tg-yw4l\">10-18<\/td>\n<td class=\"tg-yw4l\">\u05d0\u05b5\u05d8\u05d5<\/td>\n<td class=\"tg-yw4l\">Atto<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,000,000,000,001<\/td>\n<td class=\"tg-yw4l\">10-15<\/td>\n<td class=\"tg-yw4l\">\u05e4\u05b6\u05de\u05d8\u05d5<\/td>\n<td class=\"tg-yw4l\">Femto<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-031e\">0.000,000,000,001<\/td>\n<td class=\"tg-031e\">10-12<\/td>\n<td class=\"tg-yw4l\">\u05e4\u05bc\u05d9\u05e7\u05d5<\/td>\n<td class=\"tg-yw4l\">Pico<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,000,001<\/td>\n<td class=\"tg-yw4l\">10-9<\/td>\n<td class=\"tg-yw4l\">\u05e0\u05b7\u05e0\u05d5<\/td>\n<td class=\"tg-yw4l\">Nano<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.000,001<\/td>\n<td class=\"tg-yw4l\">10-6<\/td>\n<td class=\"tg-yw4l\">\u05de\u05d9\u05e7\u05e8\u05d5<\/td>\n<td class=\"tg-yw4l\">Micro<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">0.001<\/td>\n<td class=\"tg-yw4l\">10-3<\/td>\n<td class=\"tg-yw4l\">\u05d0\u05dc\u05e4\u05d9\u05ea<\/td>\n<td class=\"tg-yw4l\">Milli<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1<\/td>\n<td class=\"tg-yw4l\">100<\/td>\n<td class=\"tg-yw4l\">\u05d0\u05d7\u05d3<\/td>\n<td class=\"tg-yw4l\">One<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000<\/td>\n<td class=\"tg-yw4l\">103<\/td>\n<td class=\"tg-yw4l\">\u05d0\u05dc\u05e3, \u05e7\u05d9\u05dc\u05d5<\/td>\n<td class=\"tg-yw4l\">Thousand, Kilo<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000<\/td>\n<td class=\"tg-yw4l\">106<\/td>\n<td class=\"tg-yw4l\">\u05de\u05d9\u05dc\u05d9\u05d5\u05df, \u05de\u05d2\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Million, Mega<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000<\/td>\n<td class=\"tg-yw4l\">109<\/td>\n<td class=\"tg-yw4l\">\u05de\u05d9\u05dc\u05d9\u05d0\u05e8\u05d3, \u05d2'\u05d9\u05d2\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Billion, Giga<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000,000<\/td>\n<td class=\"tg-yw4l\">1012<\/td>\n<td class=\"tg-yw4l\">\u05d8\u05e8\u05d9\u05dc\u05d9\u05d5\u05df, \u05d8\u05b6\u05e8\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Trillion, Tera<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000,000,000<\/td>\n<td class=\"tg-yw4l\">1015<\/td>\n<td class=\"tg-yw4l\">\u05d6\u05d9\u05dc\u05d9\u05d5\u05df, \u05e4\u05bc\u05b6\u05d8\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Zillion, Peta<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000,000,000,000<\/td>\n<td class=\"tg-yw4l\">1018<\/td>\n<td class=\"tg-yw4l\">\u05e1\u05e7\u05d9\u05dc\u05d9\u05d5\u05df, \u05d0\u05b6\u05e7\u05e1\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Skillion, Exa, Quad<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000,000,000,000,000<\/td>\n<td class=\"tg-yw4l\">1021<\/td>\n<td class=\"tg-yw4l\">\u05d6\u05b6\u05d8\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Zetta<\/td>\n<\/tr>\n<tr>\n<td class=\"tg-yw4l\">1,000,000,000,000,000,000,000,000<\/td>\n<td class=\"tg-yw4l\">1024<\/td>\n<td class=\"tg-yw4l\">\u05d9\u05d5\u05d8\u05b8\u05d4<\/td>\n<td class=\"tg-yw4l\">Yotta<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #800080\"><strong>\u05de\u05ea\u05d5\u05d3\u05d9\u05e7\u05d4 \u05d5\u05e4\u05d3\u05d2\u05d5\u05d2\u05d9\u05d4 \u05d4\u05e7\u05e9\u05d5\u05e8\u05d9\u05dd \u05dc\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc<\/strong><\/span>:<\/p>\n<p>\u05d1\u05de\u05d0\u05d4 \u05d4 21, \u05db\u05d5\u05dc\u05dd \u05de\u05e9\u05ea\u05de\u05e9\u05d9\u05dd \u05d1\u05db\u05dc\u05d9 \u05e2\u05d6\u05e8, \u05db\u05d2\u05d5\u05df \u05de\u05d7\u05e9\u05d1\u05d5\u05e0\u05d9\u05dd, \u05d4\u05e0\u05de\u05e6\u05d0\u05d9\u05dd \u05d1\u05db\u05dc \u05de\u05db\u05e9\u05d9\u05e8 \u05e1\u05dc\u05d5\u05dc\u05e8\u05d9.<\/p>\n<p>\u05db\u05ea\u05d5\u05e6\u05d0\u05d4 \u05de\u05db\u05da, \u05e7\u05d9\u05d9\u05de\u05ea \u05e0\u05d8\u05d9\u05d9\u05d4 \u05e9\u05dc \u05d4\u05ea\u05dc\u05de\u05d9\u05d3\u05d9\u05dd, \u05dc\u05e8\u05d5\u05e5 \u05dc\u05db\u05d9\u05d5\u05d5\u05df \u05d4\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd (Calculations), \u05d1\u05de\u05e7\u05d5\u05dd \u05e9\u05dc\u05d1 \u05d4\u05d7\u05e9\u05d9\u05d1\u05d4 (Thinking).<\/p>\n<p>\u05d0\u05d7\u05d3 \u05de\u05d2\u05d3\u05d5\u05dc\u05d9 \u05d4\u05e4\u05d9\u05d6\u05d9\u05e7\u05d0\u05d9\u05dd, <span style=\"color: #804000\"><strong>\u05d0\u05e0\u05e8\u05d9\u05e7\u05d5 \u05e4\u05e8\u05de\u05d9<\/strong> <\/span>(<span style=\"color: #804000\"><strong>Enrico Fermi<\/strong><\/span>), \u05d9\u05d3\u05d5\u05e2 \u05d1\u05d6\u05db\u05d5\u05ea \u05d4\u05e9\u05d0\u05dc\u05d5\u05ea \u05e9\u05e0\u05d4\u05d2 \u05dc\u05e9\u05d0\u05d5\u05dc, \u05e2\u05dc <span style=\"color: #804000\"><strong>\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc \u05e9\u05dc \u05e4\u05ea\u05e8\u05d5\u05e0\u05d5\u05ea \u05dc\u05d1\u05e2\u05d9\u05d5\u05ea<\/strong><\/span>.<\/p>\n<p>\u05e2\u05d3 \u05d4\u05d9\u05d5\u05dd, \u05d1\u05e2\u05d9\u05d5\u05ea \u05e9\u05dc \u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc, \u05e0\u05e7\u05e8\u05d0\u05d5\u05ea &quot;<span style=\"color: #804000\"><strong>\u05d1\u05e2\u05d9\u05d5\u05ea \u05e4\u05e8\u05de\u05d9<\/strong><\/span>&quot; (<span style=\"color: #804000\"><strong>Fermi Problems<\/strong><\/span>).<\/p>\n<p>\u05e9\u05dd \u05e0\u05d5\u05e1\u05e3 \u05d4\u05d5\u05d0 &quot;<span style=\"color: #804000\"><strong>\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd \u05e2\u05dc \u05d4\u05e6\u05d3 \u05d4\u05d0\u05d7\u05d5\u05e8\u05d9 \u05e9\u05dc \u05d4\u05de\u05e2\u05d8\u05e4\u05d4<\/strong><\/span>, \u05d0\u05d5 \u05de\u05e4\u05d9\u05ea \u05d4\u05e0\u05d9\u05d9\u05e8&quot; (<span style=\"color: #804000\"><strong>Back of the envelope Calculations<\/strong><\/span>).<\/p>\n<p><span style=\"color: #800000\"><strong>\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc, \u05de\u05d0\u05e4\u05e9\u05e8\u05d9\u05dd \u05dc\u05e7\u05d1\u05dc: \u05d4\u05d1\u05e0\u05d4 \u05dc\u05d2\u05d1\u05d9 \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05e4\u05ea\u05e8\u05d5\u05df, \u05d4\u05ea\u05d0\u05de\u05ea\u05d5 \u05dc\u05de\u05e6\u05d9\u05d0\u05d5\u05ea \u05d4\u05d4\u05d2\u05d9\u05d5\u05e0\u05d9\u05ea, \u05d2\u05d9\u05dc\u05d5\u05d9 \u05e9\u05d2\u05d9\u05d0\u05d5\u05ea \u05d2\u05e1\u05d5\u05ea \u05d1\u05ea\u05db\u05e0\u05d5\u05df, \u05d5\u05db\u05d9\u05d5\u05d5\u05e0\u05d9\u05dd \u05e9\u05dc \u05e4\u05ea\u05e8\u05d5\u05e0\u05d5\u05ea \u05d4\u05de\u05d5\u05d1\u05d9\u05dc\u05d9\u05dd \u05dc\u05d4\u05e6\u05dc\u05d7\u05d4.<\/strong><\/span><\/p>\n<p><span style=\"color: #800000\"><strong>\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc, \u05de\u05ea\u05d9\u05d9\u05d7\u05e1\u05ea \u05dc\u05e4\u05e8\u05de\u05d8\u05e8\u05d9\u05dd \u05d4\u05d7\u05e9\u05d5\u05d1\u05d9\u05dd \u05d1\u05dc\u05d1\u05d3, \u05d9\u05d5\u05e6\u05e8\u05ea \u05de\u05d5\u05d3\u05dc \u05e4\u05e9\u05d5\u05d8 \u05e9\u05dc \u05d4\u05d1\u05e2\u05d9\u05d4, \u05de\u05ea\u05de\u05e7\u05d3\u05ea \u05d1\u05e2\u05e7\u05e8\u05d5\u05e0\u05d5\u05ea \u05e4\u05d9\u05d6\u05d9\u05e7\u05dc\u05d9\u05d9\u05dd \u05d1\u05e1\u05d9\u05e1\u05d9\u05d9\u05dd, \u05d5\u05de\u05ea\u05d7\u05e9\u05d1\u05ea \u05d1\u05d0\u05d9\u05dc\u05d5\u05e6\u05d9\u05dd (Constrains).<\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05dc\u05d0 \u05de\u05e2\u05d5\u05e0\u05d9\u05d9\u05e0\u05d9\u05dd \u05d1\u05d7\u05d9\u05e9\u05d5\u05d1 \u05de\u05d3\u05d5\u05d9\u05e7, \u05d0\u05dc\u05d0 \u05e8\u05d5\u05e6\u05d9\u05dd \u05dc\u05e7\u05d1\u05dc \u05d4\u05e2\u05e8\u05db\u05d4 \u05dc\u05d2\u05d1\u05d9 \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e4\u05e2\u05d4. \u05de\u05d9\u05d5\u05de\u05e0\u05d5\u05ea \u05d6\u05d0\u05ea, \u05e9\u05dc &quot;\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc&quot;, \u05de\u05d0\u05e4\u05e9\u05e8\u05ea \u05d1\u05d3\u05d9\u05e7\u05ea \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05e8\u05e2\u05d9\u05d5\u05df, \u05d1\u05d3\u05d9\u05e7\u05ea \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05d5\u05ea \u05de\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd (\u05d0\u05dd \u05d0\u05d9\u05df \u05d8\u05e2\u05d5\u05ea \u05e2\u05e7\u05e8\u05d5\u05e0\u05d9\u05ea), \u05d5\u05db\u05d5'. \u05d1\u05de\u05e7\u05e8\u05d4 \u05db\u05d6\u05d4, \u05de\u05e1\u05e4\u05d9\u05e7 \u05dc\u05d3\u05e2\u05ea \u05e1\u05d3\u05e8\u05d9 &hellip; <a href=\"https:\/\/stweizmann.proj.ac.il\/energy\/%d7%9e%d7%94%d7%99-%d7%97%d7%a9%d7%99%d7%91%d7%94-%d7%91%d7%a1%d7%93%d7%a8%d7%99-%d7%92%d7%95%d7%93%d7%9c\/\">\u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4  <span class=\"meta-nav\">&larr;<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":9,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-1966","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u05de\u05d4\u05d9 \u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc? - \u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d1\u05d4\u05d9\u05d1\u05d8 \u05e8\u05d1 \u05ea\u05d7\u05d5\u05de\u05d9<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stweizmann.proj.ac.il\/energy\/\u05de\u05d4\u05d9-\u05d7\u05e9\u05d9\u05d1\u05d4-\u05d1\u05e1\u05d3\u05e8\u05d9-\u05d2\u05d5\u05d3\u05dc\/\" \/>\n<meta property=\"og:locale\" content=\"he_IL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u05de\u05d4\u05d9 \u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc? - \u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d1\u05d4\u05d9\u05d1\u05d8 \u05e8\u05d1 \u05ea\u05d7\u05d5\u05de\u05d9\" \/>\n<meta property=\"og:description\" content=\"\u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05dc\u05d0 \u05de\u05e2\u05d5\u05e0\u05d9\u05d9\u05e0\u05d9\u05dd \u05d1\u05d7\u05d9\u05e9\u05d5\u05d1 \u05de\u05d3\u05d5\u05d9\u05e7, \u05d0\u05dc\u05d0 \u05e8\u05d5\u05e6\u05d9\u05dd \u05dc\u05e7\u05d1\u05dc \u05d4\u05e2\u05e8\u05db\u05d4 \u05dc\u05d2\u05d1\u05d9 \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e4\u05e2\u05d4. \u05de\u05d9\u05d5\u05de\u05e0\u05d5\u05ea \u05d6\u05d0\u05ea, \u05e9\u05dc &quot;\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc&quot;, \u05de\u05d0\u05e4\u05e9\u05e8\u05ea \u05d1\u05d3\u05d9\u05e7\u05ea \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05e8\u05e2\u05d9\u05d5\u05df, \u05d1\u05d3\u05d9\u05e7\u05ea \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05d5\u05ea \u05de\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd (\u05d0\u05dd \u05d0\u05d9\u05df \u05d8\u05e2\u05d5\u05ea \u05e2\u05e7\u05e8\u05d5\u05e0\u05d9\u05ea), \u05d5\u05db\u05d5&#039;. \u05d1\u05de\u05e7\u05e8\u05d4 \u05db\u05d6\u05d4, \u05de\u05e1\u05e4\u05d9\u05e7 \u05dc\u05d3\u05e2\u05ea \u05e1\u05d3\u05e8\u05d9 &hellip; \u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4 &larr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/stweizmann.proj.ac.il\/energy\/\u05de\u05d4\u05d9-\u05d7\u05e9\u05d9\u05d1\u05d4-\u05d1\u05e1\u05d3\u05e8\u05d9-\u05d2\u05d5\u05d3\u05dc\/\" \/>\n<meta property=\"og:site_name\" content=\"\u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d1\u05d4\u05d9\u05d1\u05d8 \u05e8\u05d1 \u05ea\u05d7\u05d5\u05de\u05d9\" \/>\n<meta property=\"article:modified_time\" content=\"2017-03-02T11:56:14+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" 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-->","yoast_head_json":{"title":"\u05de\u05d4\u05d9 \u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc? - \u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d1\u05d4\u05d9\u05d1\u05d8 \u05e8\u05d1 \u05ea\u05d7\u05d5\u05de\u05d9","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/stweizmann.proj.ac.il\/energy\/\u05de\u05d4\u05d9-\u05d7\u05e9\u05d9\u05d1\u05d4-\u05d1\u05e1\u05d3\u05e8\u05d9-\u05d2\u05d5\u05d3\u05dc\/","og_locale":"he_IL","og_type":"article","og_title":"\u05de\u05d4\u05d9 \u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc? - \u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d1\u05d4\u05d9\u05d1\u05d8 \u05e8\u05d1 \u05ea\u05d7\u05d5\u05de\u05d9","og_description":"\u05dc\u05e2\u05d9\u05ea\u05d9\u05dd \u05dc\u05d0 \u05de\u05e2\u05d5\u05e0\u05d9\u05d9\u05e0\u05d9\u05dd \u05d1\u05d7\u05d9\u05e9\u05d5\u05d1 \u05de\u05d3\u05d5\u05d9\u05e7, \u05d0\u05dc\u05d0 \u05e8\u05d5\u05e6\u05d9\u05dd \u05dc\u05e7\u05d1\u05dc \u05d4\u05e2\u05e8\u05db\u05d4 \u05dc\u05d2\u05d1\u05d9 \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e4\u05e2\u05d4. \u05de\u05d9\u05d5\u05de\u05e0\u05d5\u05ea \u05d6\u05d0\u05ea, \u05e9\u05dc &quot;\u05d7\u05e9\u05d9\u05d1\u05d4 \u05d1\u05e1\u05d3\u05e8\u05d9 \u05d2\u05d5\u05d3\u05dc&quot;, \u05de\u05d0\u05e4\u05e9\u05e8\u05ea \u05d1\u05d3\u05d9\u05e7\u05ea \u05d4\u05d9\u05ea\u05db\u05e0\u05d5\u05ea \u05e9\u05dc \u05e8\u05e2\u05d9\u05d5\u05df, \u05d1\u05d3\u05d9\u05e7\u05ea \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05d5\u05ea \u05de\u05d7\u05d9\u05e9\u05d5\u05d1\u05d9\u05dd (\u05d0\u05dd \u05d0\u05d9\u05df \u05d8\u05e2\u05d5\u05ea \u05e2\u05e7\u05e8\u05d5\u05e0\u05d9\u05ea), \u05d5\u05db\u05d5'. \u05d1\u05de\u05e7\u05e8\u05d4 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