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			<title><![CDATA[文章分類: 天文篇 (知識開發站)]]></title>
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<item>
<title><![CDATA[冥王星]]></title>

	<description><![CDATA[<span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1645151-pluto.JPG"></a></span><span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1645151-pluto.JPG"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1645151-pluto.JPG&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span> <span style="font-size: 14pt; font-family: 新細明體">      冥王星</span><span style="font-size: 14pt"><font face="Times New Roman">(Pluto)</font></span><span style="font-size: 14pt; font-family: 新細明體">被褫奪行星資格兩年後，終於取得一個安慰獎。</span> <p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       從今以後，所有跟冥王星與太陽的距離差不多，體積較小、光度較弱的矮行星，均可稱為「冥王體」（</span><span style="font-size: 14pt"><font face="Times New Roman">plutoids</font></span><span style="font-size: 14pt; font-family: 新細明體">）。</span><span style="font-size: 14pt; font-family: 新細明體">部分「矮行星」統稱「冥王體」。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體">                                                                    <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Wed, 15 Oct 2008 21:55:48 +0800</pubDate>

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<title><![CDATA[「鳳凰號」發現火星存在鹹味環境]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">        火星探測器「鳳凰號」對在火星北極附近的土壤進行首次味道測試，發現一個鹹味的環境，跟可以在地球發現的環境相似。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       有關發現令人對這個火星北極平原可能存在有利孕育初等生命的條件，抱有更大期望。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體"><st1 productid="余"></st1>                                                                       <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Fri, 27 Jun 2008 21:28:00 +0800</pubDate>

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<title><![CDATA[「鳳凰號」發現火星冰塊]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt"><font face="Times New Roman">       </font></span><u><span style="font-size: 14pt; font-family: 新細明體">美國太空總署</span></u><span style="font-size: 14pt; font-family: 新細明體">的科學家相信，火星探測器「鳳凰號」近日挖掘火星土壤時，令其中的冰塊曝露出來。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       科學家指出，「鳳凰號」挖土之後可見一些閃亮的碎屑，而這些碎屑後來消失無蹤，可能是被蒸發掉。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       科學家曾猜想那些亮點可能是鹽，但鹽不會被蒸發，因此推測是冰。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體"><st1 productid="余"></st1>                                                                      <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Sat, 21 Jun 2008 10:03:22 +0800</pubDate>

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<title><![CDATA[地球內部由甚麼組成?]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">        經科學家的研究，地球主要分為四層。</span><span style="font-size: 14pt; font-family: 新細明體">最外層由堅硬的岩石構成，稱為「地殼」。「地殼」的下方是「地幔」，「地幔」上層是堅硬的岩石，延伸到深層變得非常熱，岩石呈熔融狀態。再下方是「外核」，由液體金屬構成。地球中心過「內核」，由固體金屬構成。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體"><st1 productid="余">                                                                        <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余</st1>老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Fri, 20 Jun 2008 09:20:11 +0800</pubDate>

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<title><![CDATA[地球能生存多久?]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       任何生物都有生、老、病、死，養育我們的地球也一樣。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       地球上的一切能源都來自太陽，如果太陽消失了，地球也必將滅亡。經科學家的研究，相信太陽再過</span><span style="font-size: 14pt"><font face="Times New Roman">80</font></span><span style="font-size: 14pt; font-family: 新細明體">億年，它上面的「氫」就會被燃燒盡，太陽就會變成一顆巨大的紅巨星。那時，地球以及其他行星都會被太陽燒成灰燼，散發到宇宙中。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體">                                                                     <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Mon, 09 Jun 2008 10:05:09 +0800</pubDate>

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<title><![CDATA[地球為甚麼會自轉?]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364985-earth.jpg"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364985-earth.jpg&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span></p> <p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">        地球不停地自轉的最初能量來源於太陽系的形成。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       太陽系是由一塊「原始星雲」形成的，「原始星雲」在宇宙渦流的作用下開始收縮，形成了「原始太陽」。「原始太陽」溫度下降，向外噴射大量微塵。這些微塵互相碰撞，體積越來越大，形成了行星。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       此後，地球靠慣性的作用不停地轉下去了。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體">                                                                       <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Sun, 08 Jun 2008 10:50:52 +0800</pubDate>

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<title><![CDATA[美國火星探測器鳳凰號發生故障]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; color: black; font-family: Helvetica">       </span><u><span style="font-size: 14pt; color: black; font-family: 新細明體">美國</span></u><span style="font-size: 14pt; color: black; font-family: 新細明體">火星探測器「鳳凰號」再次將火星照片傳送回地球，但由於通訊受到干擾，暫未能打開機械臂收集凍土樣本。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; color: black; font-family: 新細明體">       <u>美國太空總署</u>將「鳳凰號」傳送回地球的資料，合併成一張</span><span style="font-size: 14pt; color: black; font-family: Helvetica">360</span><span style="font-size: 14pt; color: black; font-family: 新細明體">度照片。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; color: black; font-family: 新細明體">       「鳳凰號」原定周二打開機械挖掘臂，但因「鳳凰號」與人造衛星短暫失去聯絡，未能接收地球總部送來的指揮訊號，故延遲一天才執行任務。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; color: black; font-family: 新細明體"></span></p><span style="font-size: 14pt; color: black; font-family: 新細明體">                                                                     <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt; color: black; font-family: Helvetica"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Thu, 29 May 2008 21:22:24 +0800</pubDate>

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<title><![CDATA[「鳳凰號」成功降落火星]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">       </font></span></strong><strong><u><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">美國</span></u></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">火星探測器「鳳凰號」已成功降落火星，並向地球傳送圖片。太空總署的專家形容，「鳳凰號」降落火星時極為完美，並將展開火星探索之旅。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       「鳳凰號」是歷來首個降落火星北極地面的探測器，科學家一直相信火星北極有冰塊，甚至存有生命，「鳳凰號」的任務主要收集同分析土壤，求證火星是否真的有生命跡象。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"></span></strong></p><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">                                                                        <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><o></o></span></strong>]]></description>

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<pubDate>Wed, 28 May 2008 21:28:19 +0800</pubDate>

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<title><![CDATA[「鳳凰號」探索火星]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       經過近</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">10</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">個月飛行，<u>美國</u>太空總署的火星探測器「鳳凰號」，將於本港時間今早</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">8</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">時許降落火星北極地區，然後收集數據，探索火星表面有沒有生物所需的化學物質。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"></span></strong></p><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><st1 productid="余">                                                                          <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余</st1>老師</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><o></o></span></strong>]]></description>

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<pubDate>Mon, 26 May 2008 21:35:45 +0800</pubDate>

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<title><![CDATA[地球的鄰居(2) -- 火星]]></title>

	<description><![CDATA[<span style="font-size: 14pt"><font face="新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376738-mars.jpg"></a></font></span><span style="font-size: 14pt"><font face="新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376738-mars.jpg"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376738-mars.jpg&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </font></span> <p><span style="font-size: 14pt"><font face="新細明體">       火星是太陽系第四個行星。其英文名字</font></span><span style="font-size: 14pt; font-family: 'Times New Roman'">Mars</span><span style="font-size: 14pt"><font face="新細明體">乃羅馬神話中的「戰</font></span><span style="font-size: 14pt"><font face="新細明體">神」。</font></span></p><p><span style="font-size: 14pt"><font face="新細明體">       火星距離太陽約</font></span><span style="font-size: 14pt; font-family: 'Times New Roman'">2.17</span><span style="font-size: 14pt"><font face="新細明體">億公里，其引人注目的紅色外表，使它在晚間不難被觀測。</font></span></p><p><span style="font-size: 14pt"><font face="新細明體">       火星的自轉周期為</font></span><span style="font-size: 14pt; font-family: 'Times New Roman'">24.6</span><span style="font-size: 14pt"><font face="新細明體">小時，公轉周期則為</font></span><span style="font-size: 14pt; font-family: 'Times New Roman'">687</span><span style="font-size: 14pt"><font face="新細明體">日。</font></span></p><span style="font-size: 14pt"><font face="新細明體"><st1 productid="余"></st1>                                                                      <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</font></span><span style="font-size: 14pt; font-family: 'Times New Roman'"> <o></o></span>]]></description>

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<pubDate>Sat, 24 May 2008 20:51:54 +0800</pubDate>

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<title><![CDATA[地球的鄰居(1) -- 金星]]></title>

	<description><![CDATA[<span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376736-venus.JPG"></a></span><span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376736-venus.JPG"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1376736-venus.JPG&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span> <p style="margin: 0cm 0cm 0pt" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       金星乃第二顆最接近太陽的行星，是肉眼所見最明亮的行星。其表面是一層濃密的大氣，故難以得知其地理環境。它的英文名字</span><span style="font-size: 14pt"><font face="Times New Roman">Venus</font></span><span style="font-size: 14pt; font-family: 新細明體">乃羅馬神話中的「愛美神」，古<u>中國</u>謂之「太白星」。</span></p><p style="margin: 0cm 0cm 0pt" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       金星的自轉周期相當長，約</span><span style="font-size: 14pt"><font face="Times New Roman">243</font></span><span style="font-size: 14pt; font-family: 新細明體">日；至於公轉周期則約</span><span style="font-size: 14pt"><font face="Times New Roman">225</font></span><span style="font-size: 14pt; font-family: 新細明體">日。自轉方向與地球相反，即由東往西自轉。沒有衛星及磁場，地殼由火山岩組成，沒有海。</span></p><p style="margin: 0cm 0cm 0pt" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體"><st1 productid="余"></st1>                                                                        <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<pubDate>Sat, 24 May 2008 20:42:08 +0800</pubDate>

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<item>
<title><![CDATA[月球]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1373362-moon.JPG"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1373362-moon.JPG&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span></p> <p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體">       月球</span><span style="font-size: 14pt"><font face="Times New Roman">(Moon)</font></span><span style="font-size: 14pt; font-family: 新細明體">是地球的衛星，是太陽系第五大衛星，它的大小比地球的四分一還要大，比起地球，它是一個很大衛星。月球的表面佈滿隕石坑、高山和平原。月球距離地球</span><st1 tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="384400" unitname="公里"><span style="font-size: 14pt"><font face="Times New Roman">384400</font></span><span style="font-size: 14pt; font-family: 新細明體">公里</span></st1><span style="font-size: 14pt; font-family: 新細明體">，</span><span style="font-size: 14pt"><font face="Times New Roman"> </font></span><span style="font-size: 14pt; font-family: 新細明體">圍繞地球轉一周的時間大約是</span><span style="font-size: 14pt"><font face="Times New Roman">27.3</font></span><span style="font-size: 14pt; font-family: 新細明體">日。</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><span style="font-size: 14pt; font-family: 新細明體"></span></p><span style="font-size: 14pt; font-family: 新細明體">                                                                      <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余老師</span><span style="font-size: 14pt"><o></o></span>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Fri, 23 May 2008 06:17:14 +0800</pubDate>

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<title><![CDATA[行星的次序]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       太陽系內的行星現被定義為八顆，依距太陽由近至遠依次是水星、金星、地球、火星、木星、土星、天王星、海王星，後四顆行星還有「星環」呢！</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"></span></strong></p><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><st1 productid="余">                                                                         <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余</st1>老師</span></strong><strong><span style="font-size: 14pt"><o></o></span></strong>]]></description>

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<pubDate>Tue, 20 May 2008 21:02:35 +0800</pubDate>

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<title><![CDATA[最特別的行星]]></title>

	<description><![CDATA[<p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364990-saturn.bmp"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364990-saturn.bmp&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span></strong></p> <p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       八大行星中最特別的可算是土星了。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       土星是太陽系八大行星之一，按離太陽由近到遠的次序排列為第六顆。土星是一個巨型氣體行星</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">，</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">是太陽系中僅次於木星的第二大行星。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       土星的英文名稱</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">Saturn</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">是以羅馬神的農神<u>薩杜恩</u>命名的。中國古代稱之為鎮星或填星。土星的公轉周期為</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">29</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">年</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">167</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">天</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">6.7</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">小時，自轉周期則為</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">10</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">小時</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">13</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">分</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">59</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">秒。</span></strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-align: justify" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"></span></strong></p><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><st1 productid="余">                                                                      <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余</st1>老師</span></strong><strong><span style="font-size: 14pt"><o></o></span></strong>]]></description>

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<dc:creator><![CDATA[llsy2008]]></dc:creator>

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<pubDate>Mon, 19 May 2008 19:04:18 +0800</pubDate>

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<title><![CDATA[地球小資料]]></title>

	<description><![CDATA[<p style="margin: 0cm 0cm 0pt" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><a href="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364985-earth.jpg"><p style="text-align: center"><img src="http://llsy2008.mysinablog.com/resserver.php?blogId=63421&amp;resource=1364985-earth.jpg&amp;mode=preview" border="0" alt="Picture" hspace="5" vspace="5" /></p></a> </span></strong></p> <p style="margin: 0cm 0cm 0pt" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       地球是太陽系中行星之一，按離太陽由近及遠的次序排列為第三，它是現代科學目前確證目前唯一存在生命的行星，地球的年齡估計大約有</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">45</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">億</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">7</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">千萬年，在行星形成後不久，可能曾遭受小型天體撞擊而產生一個天然衛星－</span></strong><strong><span style="font-size: 14pt; font-family: 新細明體">月球</span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">。</span></strong></p><p style="margin: 0cm 0cm 0pt" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">       地球的公轉周期為</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">365.25</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">天，自轉周期則為</span></strong><strong><span style="font-weight: normal; font-size: 14pt"><font face="Times New Roman">1</font></span></strong><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體">天。</span></strong></p><p style="margin: 0cm 0cm 0pt" class="MsoNormal"><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"></span></strong></p><strong><span style="font-weight: normal; font-size: 14pt; font-family: 新細明體"><st1 productid="余">                                                                        <img src="http://mysinablog.com/imgs/emotions/23.gif" border="0" alt="emotion" />余</st1>老師</span></strong><strong><span style="font-size: 14pt"><o></o></span></strong>]]></description>

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<pubDate>Mon, 19 May 2008 06:14:40 +0800</pubDate>

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