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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=58" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">中国科学家获得引力场以光速传播首个观测证据 </h1> <p class="xg1"> 时间：2012-12-29 08:53<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1968)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=3112&idtype=aid" title="查看全部评论"><em id="_commentnum">1</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=58" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>12月26日下午，“引力场以光速传播的观测证据”新闻发布会在京举行。中国科学家在发布会上宣布，获得了“引力场以光速传播的第一个观测证据”。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content">12月26日下午，“引力场以光速传播的观测证据”新闻发布会在京举行。中国科学家在发布会上宣布，获得了“引力场以光速传播的第一个观测证据”。<BR> <BR>由中国科学院地质与地球<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>研究所汤克云研究员领导，中国地震局和中国科学院大学有关人员参加的科学团组，经过十多年的持续探索，在实施了多次日食期间的固体潮观测后，发现现行地球固体潮公式实际上暗含着引力场以光速传播的假定，从而提出了用固体潮<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>引力传播速度的方法。 “Observational evidences for the speed of the gravity based on the Earth tide” 一文报道了利用西藏和新疆高质量地球固体潮数据测定引力传播速度的结果，即将发表于《科学通报》英文版。<BR> <BR>近年来，中国科学院地质与地球物理研究所汤克云研究员及其团组先后实施了1997年漠河日全食观测、2001年赞比亚日全食观测、2002年澳大利亚日全食观测、2008年嘉峪关日全食观测、2009年上海-杭州-湖州日全食观测和2010年云南大理日环食观测，主要是重力固体潮观测。在多次的“日全食期间的重力观测”后该团组发现：“现今固体潮<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>公式中隐含着引力场以光速传播的假定”，进而导出了引力传播速度方程，找到了求解引力场速度的有效方法；选择远离太平洋、大西洋、印度洋和北冰洋的西藏狮泉河站和新疆乌什站的固体潮数据作粘弹性滞后校正后，代入引力传播速度方程，获得了“引力场以光速传播的第一个观测证据”。<BR> <BR>历年来这项研究分别得到了国家科技部、国家基金委、中国科学院、中国地震局的支持。该项原始创新成果，对于引力场的理论和实验研究具有重要意义。 <DIV><FONT color="#808080" size=2><IMG src="http://www.oecr.com/xwb/images/bgimg/icon_logo.png"> 已同步至 <a href="http://api.t.sina.com.cn/2200118572/statuses/3528503565886333" target="_blank">update的微博</A></FONT></DIV></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a 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