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標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁]

作者: lilitan008    時間: 2011-10-2 10:09 PM     標題: EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.   
0 M5 o0 _! H$ @% W& }TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。AMAZING!
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。5 }) V& o! K& f: k! T! p8 C- A- f  H
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Even after you see it, it is still hard to believe!

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- E8 L- h4 \/ G. mTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。tvb now,tvbnow,bttvb' M" E5 [, D# X+ O. h
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:8898( {2 e1 t& Z8 U# x) Q9 O5 S
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
" b  C+ X0 Z9 R$ B* j0 `9 n公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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6 d" w3 q* @% Y' F/ \: ]2 Y/ hThe photo was taken on the day of inauguration.7 e1 N5 f6 {; @- F; i: N
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898- `% b$ X* l/ {( [* Y' q# F

5 K9 D' p" l$ {% s5.39.217.77:8898Question:

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5 b  k; }" W* f6 V2 xDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,- [6 N+ F$ T: E+ i9 G
Or just the weight of the water?
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& j! b% ~2 S8 }0 p5 \* q9 H公仔箱論壇Answer:

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It only needs to be designed to withstand the weight of  the water!
2 C  q* Z+ Z, U) b+ dTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded

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The Incredible Magdeburg Water Bridge in Germany
- e5 f2 F% j7 ]$ dThe Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world.
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The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo. TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。# h" K; {  y* E# V1 ^& b2 G5 g
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% w! @1 q% H# M2 }( C
Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003.

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[attach]1486500[/attach]TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。7 `: N/ F+ h0 e) X
[attach]1486501[/attach]
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作者: busyfun    時間: 2011-10-4 11:33 AM

這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出
2 s/ H) Q* r8 g& J7 W, Q! @  s# a連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
; O$ F: M! ?3 E" ^TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。tvb now,tvbnow,bttvb+ w6 X  w# s6 j1 Y2 ~2 e/ J0 [
隨後的冷戰時期,德國分裂,該專案被東德政府無限期地擱置下來。+ z. \- ]7 x, Y1 ]3 |- C: b
德國重新統一後,隨著道路交通重大工程規劃的編制,水橋再次成為一個優先專案。
: {( Y0 f$ ?+ etvb now,tvbnow,bttvb於1997年開始建造,經過 6 年,耗資 5 億歐元,2.4 萬噸鋼材和 6.8 萬
# J2 q. Y/ `  t: f公仔箱論壇立方公尺混凝土,完成了巨大的水橋,連接柏林的內陸港與萊茵河沿岸港口。 公仔箱論壇6 }5 F1 c0 f5 m: B
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇' v6 a) o; D7 V" Y5 u# _
易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。
作者: swyip21    時間: 2011-10-7 10:19 AM

多谢您的分享!
作者: Mimisan    時間: 2011-10-12 11:01 AM

first time heard & saw it, thanks for sharing, thanks tvboxnow!!
作者: pepperjellabies    時間: 2011-10-15 09:35 PM

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