{"id":523,"date":"2014-02-05T11:14:45","date_gmt":"2014-02-05T10:14:45","guid":{"rendered":"http:\/\/astronomy.lamost.org\/blog\/?p=523"},"modified":"2014-02-05T11:14:45","modified_gmt":"2014-02-05T10:14:45","slug":"idea-is-cheap-%e4%b9%8b-%e5%a4%a9%e6%89%8d%e7%89%88","status":"publish","type":"post","link":"http:\/\/astronomy.lamost.org\/blog\/?p=523","title":{"rendered":"idea is cheap \u4e4b \u5929\u624d\u7248"},"content":{"rendered":"<p>1907\u5e74\u5c31\u77e5\u9053\u7684\u4e1c\u897f\uff0c\u5e76\u4e14\u53d1\u8868\u4e86\uff0c\u4e3a\u5565\u6ca1\u4eba\u8ddf\u8fdb\u5462\uff1f\u90fd\u73a9\u91cf\u5b50\u53bb\u4e86\uff1f<\/p>\n<p><span>A Student\u2019s Guide to Einstein\u2019s Major Papers \uff0c Sec. 5.1.2<\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span><span style=\"color: #ff0000;\">In 1907<\/span>,  he published a review of the special theory of relativity, entitled \u201cOn  the Relativity Principle and the Conclusions Drawn from It,\u201d in <\/span><span>Jahrbuch der Radioaktivit \u0308at und Elektronik<\/span><span>.<\/span><span>7 <\/span><span>In the last section of the paper, entitled \u201cPrinciple of Relativity and Gravitation,\u201d he writes: <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span>\uff3bW]e  shall therefore assume the complete physical equivalence of a  gravitational field and a corresponding acceleration of the reference  system. <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span> <\/span><\/p>\n<p><span>The  equivalence of a gravitational field and an accelerating reference  frame became known as the strong equivalence principle. This one  assumption (strong equivalence principle) started Einstein on his way to  answering the aforementioned \u201clingering questions.\u201d <span style=\"color: #ff0000;\">But it took ten years, from 1905 to 1915, for Einstein to arrive at the completed form of the general theory of relativity.<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1907\u5e74\u5c31\u77e5\u9053\u7684\u4e1c\u897f\uff0c\u5e76\u4e14\u53d1\u8868\u4e86\uff0c\u4e3a\u5565\u6ca1\u4eba\u8ddf\u8fdb\u5462\uff1f\u90fd\u73a9\u91cf\u5b50\u53bb\u4e86\uff1f A Student\u2019s Guide to &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-523","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=523"}],"version-history":[{"count":1,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/523\/revisions"}],"predecessor-version":[{"id":524,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/523\/revisions\/524"}],"wp:attachment":[{"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=523"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/astronomy.lamost.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}