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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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, y0 ]$ @- ]( u3 NTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.   % N9 c0 g9 u" R5 X/ x, X' \, s+ C! L
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。, a7 S0 Q& [3 B  z  ^

8 f4 |2 `" f, O: VEven after you see it, it is still hard to believe!

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0 Y. t; \  ?: W- n9 L6 K公仔箱論壇Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb& n4 U6 Z4 b( q4 W2 {5 p! ?: R# V$ ^
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
) Q+ q4 W3 R- y. N5.39.217.76It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
5 `9 Y2 \/ f: E- D, ^8 K% {To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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, T( D( }$ ~$ UTVBNOW 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。Question:
公仔箱論壇" t- f8 n! l2 ?- \

4 G0 e! J* m8 x' T0 J1 v6 n, x公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ i$ N1 X, o( }, GOr just the weight of the water?
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Answer:
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# D! o2 ?5 }' @2 @0 b: E公仔箱論壇It only needs to be designed to withstand the weight of  the water! 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。  J6 ?% m' E& n
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
7 T! q  C: w9 J4 L, I5.39.217.76The 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. & D" U5 p5 w- i- n! n0 i* b3 C9 U
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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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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。2 g" n/ J/ f7 {2 K. g: H5 |

9 y! ~9 A3 ?# [$ }) sTVBNOW 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。
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9 X+ g- [) s. o9 ~6 B# r公仔箱論壇
3 g+ g1 t& s; l( d2 j  i& r; UTVBNOW 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。
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平壤核子能源研究所
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 Z) j( d* R; I
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
, y( |# H4 H+ M( I# U公仔箱論壇也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
7 F; }; E3 Z) D) _tvb now,tvbnow,bttvb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。5.39.217.76" C6 }; K$ B" F8 c( |% F7 S" `
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。; Z8 |5 e7 s$ W5 a, q
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tvb now,tvbnow,bttvb  W! g* E6 h4 s" |. m4 E4 I( \
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。
# }0 ~& T9 ^( |/ V2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
1 @6 p# H$ S2 m1 q- b( dtvb now,tvbnow,bttvb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。
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  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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