Board logo

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 公仔箱論壇% e5 M$ S& K& L9 x
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。: T- z5 A  Q8 X+ P# @6 h5 }
If you are not a Physics person, read on and learn a fact of physics.   
7 g! Q# g* d$ H) T3 g& AAMAZING!
9 i0 ?* \: @2 y5 m

  |6 z9 A7 G2 O  s3 VEven after you see it, it is still hard to believe!
5.39.217.77:8898; @+ F4 e. E9 F2 @3 O
[attach]1486499[/attach]
' c- D; e! p0 Q8 }7 I0 l8 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。
0 y9 z8 G& ]3 @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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
2 `2 O6 s5 i: S( nThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
' u' J0 H' |' W; G& Q* QIt is located in the city of Magdeburg, near Berlin.

/ f' k. L$ @, T, gtvb now,tvbnow,bttvb9 ?& `$ |/ ]2 y% g4 r2 f! E+ R3 U
The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb2 s& u2 o( k0 Y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
6 e1 S1 j3 Y# ?" j2 w
) S9 k  j" N! w) N: X9 X9 r$ }. t, ztvb now,tvbnow,bttvbQuestion:

% I' O+ R9 ]) g, D6 p1 R
9 o; ]6 g6 b  V6 v4 ], 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,, [& k4 |0 g2 W/ W9 r
Or just the weight of the water?
( Z! [+ b) k+ I& A' H2 Y: Itvb now,tvbnow,bttvb
( N- ~/ d% h1 E. S' Etvb now,tvbnow,bttvbAnswer:

9 g9 W7 R7 @/ b+ S8 x6 o: S' N
( ?3 [# N( Y3 N8 J% ~; jIt only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb( D, {" x$ g7 K( i7 P7 l
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
5.39.217.77:8898! u+ g( `+ M2 G$ n( b, R8 c! l

& ?' F9 ]( T9 x( D8 O' T5.39.217.77:8898
) i7 Y* m8 C: @8 D+ x- U1 ^$ ]
The Incredible Magdeburg Water Bridge in Germany, R) l( I( r/ b+ ]
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.% Q% \/ I- a0 |2 X
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.
; R6 k/ Q" r5 |& @1 g% lTVBNOW 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 k+ u3 v0 l8 G+ u. D0 S' U
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.

2 @9 h4 }! A' E- [& K5 s, O

$ [, H/ [7 {! t5 L
  F# _6 F. ]! w7 x7 _8 C# v3 [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。[attach]1486500[/attach]
, J: t$ Q+ p% f( T5.39.217.77:8898[attach]1486501[/attach]8 {& x/ t" H. A8 j1 W0 P
[attach]1486502[/attach]公仔箱論壇5 F) c' o$ b. v9 w, i1 C7 \# A* n
[attach]1486503[/attach]
+ M- }, g; V) J% X! q9 O% v& S9 b( o[attach]1486504[/attach]
/ I# z9 Z' Q( I; {  v" XTVBNOW 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]1486505[/attach]; E5 b0 k* c' L
4 k1 A4 e' I, V. H

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& R% H; j, Z" n3 K
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/ W- d- b3 y$ M% Z6 r$ q* R
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
  F, V1 z7 h8 v7 J" d) u! Y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。5.39.217.77:8898  j7 Q& E9 x) L0 s! r
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。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。0 J9 h: l" @8 v. r5 I: ^
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! z  {$ r! C+ x9 y3 j* `& J
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。
- H5 v4 a. q4 t7 a! ktvb now,tvbnow,bttvb2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
, v+ Q, w* b/ bTVBNOW 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。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

提示: 作者被禁止或刪除 內容自動屏蔽




歡迎光臨 公仔箱論壇 (http://5.39.217.77:8898/) Powered by Discuz! 7.0.0