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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 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 L3 e. U: ?. S1 ~0 |! ]

3 \1 h) o: v! B- E( MIf you are not a Physics person, read on and learn a fact of physics.   ( d8 q& W: p" v/ M2 r# S1 e9 K
AMAZING!
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0 t- E3 z! a$ P" m( a# @* C. y5.39.217.77:8898Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ ?' X! g: O! ]' ^3 O0 R% B" T5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。& i) }- G; _7 p# q9 I9 x
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.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。$ E% ]) |& s8 [, Q8 x! b" S
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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0 `" o" B- W. _0 S2 X( @$ |7 o; VTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88984 [( x) Q% {' v0 D7 L
Or just the weight of the water?
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Answer:

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It only needs to be designed to withstand the weight of  the water!
& H- |8 J; p3 _7 l! s2 n) M6 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。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 GermanyTVBNOW 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& J5 M$ }$ z, {, z5 Q' l
The 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.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 d3 }  |" W6 F# u
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.
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; Z1 E9 p, V3 B3 W7 W$ [* @& sConstruction 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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2 b' Y- ?3 ~/ j! C% A[attach]1486501[/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。$ a* L( `' x& b
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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5.39.217.77:8898! g( `  \' k  T
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇tvb now,tvbnow,bttvb9 B3 G2 V8 Q# ]9 a& S5 d
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/ c7 E; Z1 q' K% ~; P
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。tvb now,tvbnow,bttvb; w; D9 ?. X* ], A
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。tvb now,tvbnow,bttvb& K: h% U7 m, q# L0 v1 U
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" f# d' Y7 T! ]4 D
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3 G+ J  d: H+ l7 N
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。& \: ]4 Y) s' ^% L4 s2 |4 {' y
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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