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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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6 V5 t! J9 [* ATVBNOW 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.   2 ~* i. D5 D. G5 g% ~: J# _
AMAZING!
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5 ?3 Q- c' E$ m7 i, q* F7 A公仔箱論壇Even after you see it, it is still hard to believe!

" n+ C4 n2 n7 _$ f7 TTVBNOW 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。[attach]1486499[/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。/ R7 p, Z7 Q2 s  {3 V% K

" O9 Q; O; C8 ~, |* v. E' zTVBNOW 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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* I+ I$ v! c5 ?  B
This 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。6 X" Q  m. X. t1 {% `( _
It is located in the city of Magdeburg, near Berlin.

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" Q+ o( Z: W# P+ A; y5.39.217.77:8898The photo was taken on the day of inauguration.: [! R( L: V' z" q; a. I9 `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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 D6 x) d1 O4 I, L0 ^
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
" I, U2 H/ {: |( AOr just the weight of the water?
7 |7 z' M) h7 M8 Z- B  ~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。5.39.217.77:8898( _9 [5 C; p( b  Y9 a
Answer:

9 v! S% p! Y9 E, Q: N  n- W% h* qTVBNOW 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。
  |' `/ ~8 u% c/ T公仔箱論壇It only needs to be designed to withstand the weight of  the water!
! ]1 S2 W4 d+ |7 h0 V& PWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded

' k1 O/ b% B% n% aTVBNOW 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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The Incredible Magdeburg Water Bridge in Germany
, a$ I9 B6 R1 G8 `  n0 YThe 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. ) y; i5 T% h" L4 F; h8 J
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。: f. `- K( J/ Z. D
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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公仔箱論壇5 {+ V8 d% L* Q
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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。  G7 I, c5 o9 x0 {0 B1 {
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[attach]1486503[/attach]公仔箱論壇1 a/ G& g5 j* X4 ^/ s
[attach]1486504[/attach]5.39.217.77:88984 D" _( {# j' b% v6 c
[attach]1486505[/attach]5.39.217.77:88986 `3 H" a, z/ K. L1 a

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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
6 s, e& m' ~) O+ S, g3 z5.39.217.77:8898連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇5.39.217.77:8898: b  P- n  ]+ F; g; f
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.77:8898* u) m2 t" l& z
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。5.39.217.77:88982 F+ j% D; g* B, m# m
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。
8 J% x8 z& \- D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, \1 Y. I+ |! Z8 `4 P4 ~- O4 ?  O
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5 w" l  a  i4 w# X3 L
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5.39.217.77:8898# H% e: s! G) A; O+ e! 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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