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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
4 Z, o3 Q3 n- J4 g$ ~tvb now,tvbnow,bttvb: U7 r2 J, ]! n0 `
If you are not a Physics person, read on and learn a fact of physics.   
% P- H) L% B5 ntvb now,tvbnow,bttvbAMAZING!
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Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]tvb now,tvbnow,bttvb: ~# Z0 V6 R3 O2 ]9 z5 }0 m! R8 [* i

' H& a9 G& k1 J( j0 [Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ ?5 t- e8 h( l+ i1 r  `tvb now,tvbnow,bttvbThis 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。, ~- u2 C7 ?) u/ L& ~+ q
It is located in the city of Magdeburg, near Berlin.
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。, R: o: g' z  {6 G, ?' F

' x( A( N" q2 f# Z0 V* M# 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。The photo was taken on the day of inauguration.5.39.217.768 v% l, J. |+ n$ G. l& g
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.764 ^/ A0 d4 ]  j) x/ ?2 i
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Question:

! j2 M3 j5 @. ]8 Q1 n9 F公仔箱論壇
2 T8 D+ Y, |( Q2 G2 I) M. HDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
- |5 e* y. k& a; F- aOr just the weight of the water?
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7 o* N; f, K3 P9 qtvb now,tvbnow,bttvbAnswer:
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5 p* o. k6 @2 yTVBNOW 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。It only needs to be designed to withstand the weight of  the water!
2 E+ e- t  m# [& ]1 N( IWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
公仔箱論壇% B( u% T3 T. V& S

% l5 V' u6 P, u$ j/ i* l+ ]2 Q公仔箱論壇
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。* n3 J5 Q% \7 w( M/ u
The Incredible Magdeburg Water Bridge in Germany
* }0 c+ B+ L& f( C! n4 B  R1 wThe 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.
, f4 u- N3 K  C+ cTVBNOW 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。
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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& C* J! b, i: h1 e7 b3 Y9 \, E( `5.39.217.76Construction 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。% c" g, g. l. W7 Z/ `) y7 C) P
[attach]1486501[/attach]公仔箱論壇. X4 |) ]. {( H7 n7 y- M
[attach]1486502[/attach]5.39.217.76* _3 b' k! d- {* q. p
[attach]1486503[/attach]
  i8 N: m9 H2 w' p0 }" X! V  }[attach]1486504[/attach]公仔箱論壇1 }  V0 l9 G+ d/ V
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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
0 y) P+ x0 [- V4 a2 N) W0 n連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
* z/ h; z. l. ], x! Z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。tvb now,tvbnow,bttvb" E2 b6 a# @0 d# Z0 ^
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。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。; H9 a% N' f# U1 Y. R3 T1 p% Q
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! b9 Q& E, b$ e1 r/ o# o; T6 P
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
! F+ e6 X- l& P  W, T4 fTVBNOW 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。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。 tvb now,tvbnow,bttvb- ]# P8 K; P: `
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。  D# F  P$ ]8 P, I" x1 ^
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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