答案  因為物體距離跟發光源映射量與光度呈正比

也就是說 物體距離發光源越遠 發光源可以映照在物體的光量跟光度越少

打個比方  在晚上   我們打開手電筒可以照到近處 但是距離一遠  就不清楚了

我們不管是打開探照燈或是汽車霧燈的時候
在周圍或許會很明亮  但是距離一拉遠所看見的其實也只是個比較亮的點
那如果在把距離拉長  比如從高空上看  汽車的光點也就會變小
光度也會變小 
再者  恆星就算在他周圍是非常光亮沒錯
但是距離一旦拉遠後  所到達地球的光度跟光線量就會被削弱到
妳眼睛所見的這樣　

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

作者BSX (阿豪)

看板Boy-Girl

標題[分享] 男友愛吃蟑螂

時間Fri Oct 18 00:22:37 2013

噓 ufo147147f:這也能算一篇文? 10/18 00:23

推 Bifrons:鐵線蟲入侵 你男友不出三日必會拉出上百條... 10/18 00:24

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

（軍聞社記者李一豪臺北十八日電）國防部今天表示，民國一０二年國軍官兵「愛你一生、情定今世」聯合婚禮活動，今天下午十四時卅分在國防大學復興崗校區舉行，總計有376對新人報名參加婚禮。

　國防部指出，今年聯合婚禮原規劃250對新人，因官兵報名踴躍，參加新人計有376對；其中陸軍123對、海軍56對、空軍110對、後備14對、憲兵4對、中央單位69對；參加聯合婚禮的新人，最高階的是中校，計有6對，志願士兵則有6對。

　特別的是，這次參加聯合婚禮的新人中，有二位外籍新娘，分別是烏克蘭籍許莉塔小姐，嫁給空軍許耀華上尉，以及南非籍蘇妮雅小姐，嫁給空軍王冠勳中尉；此外，還有一對姊妹同時參與聯合婚禮，妹妹黃千珮上尉是國防大學政戰學院講師，嫁給埔里國中老師顧仁傑，而姊姊黃姿榕任教於新北市忠孝國中，嫁給資電部尤翰彬少校。

　國防部進一步表示，配合政府鼓勵生育政策，一００年「百對百年好合」、一０一年「一生一世、相愛久久」聯合婚禮，共計513對官兵參加，其中已生育者計有225對（佔43.8%），目前懷孕待產者計有64對（佔12.5%）；今年第三度舉行聯合婚禮，祝福所有新人在「愛你一生、情定今世」聯合婚禮後，都能邁向幸福美滿生活，並且增產報國。

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

NOWnews.com 今日新聞網

2013年10月17日 12:08

"); $(".story_photo .videoPlay").hover ( function(){$(this).css({"opacity":"0"})}, function(){$(this).css({"opacity":"1"})} ) } //照片區塊出現 $(".story_photo").fadeIn(1000); //寫入第一張照片 var firstimg = $(".story_photo img:first").attr("rel"); $(".story_photo img:first").attr("src",firstimg); $(".story_photo li:not(:first)").hide(); //判斷是否有多張照片，寫入開關 var li_nums = $(".story_photo li").length; var openclose = ' 更多照片 ' if (li_nums > 1) { $(".story_photo .p_switcher").append(openclose); } //控制錨點 if (li_nums > 1) { $('.open_btn, .story_photo img').click(function(){ $('.news_story').ScrollTo(500); }); $('.close_btn, .story_photo img').click(function(){ $('.news_story').ScrollTo(500); }); } else { $(".story_photo img").css("cursor","none").attr("title","");//一張圖時 $(".p_switcher").hide(); } //點擊圖片或開關，展開其他圖片 $("a.open_close").click(function(){ //寫入其他圖片路徑 $(".story_photo img:not(:first)").each(function(){ var imgsrc = $(this).attr("rel"); $(this).attr("src",imgsrc); }); $(".story_photo li:not(:first)").slideToggle(500); $(".open_close span").toggle(); }); if (video_link>0){ // 如果有影音，點圖連到影音頁 $(".story_photo img, .story_photo .videoPlay").css("cursor","pointer").attr("title","點擊觀看影音新聞");//設定游標 $(".story_photo img, .story_photo .videoPlay").click(function(){ var videoURL = $(".story_photo .video_link a").attr("href"); location.href=videoURL; }); } else { //沒影音時，點圖展開其它圖 if (li_nums > 1) {//一張圖以上 $(".story_photo img").css("cursor","pointer").attr("title","點擊展開");//設定游標 } $(".story_photo img").click(function(){ //寫入其他圖片路徑 $(".story_photo img:not(:first)").each(function(){ var imgsrc = $(this).attr("rel"); $(this).attr("src",imgsrc); }); $(".story_photo li:not(:first)").slideToggle(500); $(".open_close span").toggle(); }); } //------------------- });

• 南韓警察廳在首爾光華門廣場舉行韓國觀光警察成立儀式。為應對韓景區內針對外國遊客不法活動增多局面，南韓體育文化觀光部和警察廳聯合宣布，101名專門打擊此類罪行的「觀光警察」將從16日起在首爾市主要景點上崗執勤。

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

作者lugasn (喵咕)

看板give

標題[贈送] 全國 造型墨鏡

時間Fri Oct 18 23:52:47 2013

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

作者enreque (Enreque)

看板Gamesale

標題[PS3 ] 賣GTA5 台北

時間Sat Oct 19 04:02:17 2013

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

作者M1006 (M1006)

站內ShuangHe

標題[問題] 叉子 好康99到底有沒有開發票

時間Fri Oct 18 21:18:10 2013

→ nice1993:Care沒開發票真的可以不用去吃.. 10/18 21:19

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

作者kweeii ()

看板Notebook

標題[問題] 開機時營幕出現雜訊

時間Fri Oct 18 22:23:51 2013

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK

娛片頭

細心媽媽好公公

陳茵媺（ Aimee）返港養胎之後，媽咪姐日日追住佢啲新聞嚟睇㗎！無他嘅，開心嘛！佢同老公陳豪出親嚟都笑到見牙唔見眼，睇見就覺得幸福。不過，今期睇《忽周》段片，又俾媽咪姐發掘到 Aimee嘅另一方面喎！原來佢無論係行街買嘢定接受訪問，都一樣鬼咁細心，永無甩漏。而陳爸爸呢，就非常廿四孝陪伴左右。陳豪真係有福氣啊！

買奶睇標籤 

阿爸傍到實 

訪問戴番超

甄子丹 Chok呀！

宇宙最強甄子丹除咗好打得之外，原來都好 chok得㗎。今期佢接受《忽周》訪問，影相擺 pose，眼神同手勢認真到不得了！信心爆棚。之但係講到老婆，忽然又溫柔喎。唔信？睇片啦！

(繼續閱讀...)

大統長基食品公司的添加色素及混充劣油事件爆發，此公司在2年前在鹿港彰濱工業區開設大統觀光醬油廠也受到波及，今天勒令停業。

陳姓民眾今天下午到醬油廠外，發現大門緊閉，無法進入，他說，原本帶家人來鹿港玩，想不到混合油事件影響這麼大，連觀光工廠也受到波及。

警衛表示，今天起都不接受旅客參觀，不過民眾對大統相關商品有疑慮，都可以到觀光廠退款。

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends:

• Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And Syria
• Massacres That Matter - Part 2 - The Media Response On Egypt, Libya And Syria
• National demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK