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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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; G* s7 O7 l& f/ ~+ ITVBNOW 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.   
; B. M/ u) c& |1 }+ K5 ctvb now,tvbnow,bttvbAMAZING!

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* d3 u; @2 i# o# \( W7 _8 mEven after you see it, it is still hard to believe!

% M4 s, I$ F6 r2 U' ~8 Ktvb now,tvbnow,bttvb[attach]1486499[/attach]4 s# _, A( s# j0 R
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇' a" h4 s) d. ^$ Q! W8 ~, e& ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
2 i0 r' U' @, a1 v' F; [0 `It is located in the city of Magdeburg, near Berlin.
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- d6 I, d2 S' R' }3 Ztvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
' ]0 \3 [1 N- o. ~" l# O1 U5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇. l% e2 ~2 p* A9 Y3 E( g

% D: c7 s0 q, X! A/ f6 @tvb now,tvbnow,bttvbQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
4 }  n3 l8 l% D9 h5.39.217.77:8898Or just the weight of the water?
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" D" p$ g* q" z' OAnswer:

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4 i( N, S; f4 v6 C& t) J4 d公仔箱論壇It only needs to be designed to withstand the weight of  the water!
1 ?+ X) w  X! M7 @2 m/ H公仔箱論壇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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) e6 l2 `, l) Z; v6 \6 X; 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。
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The Incredible Magdeburg Water Bridge in Germany
# ~8 h) M, R. S8 s* l( A7 nThe 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.公仔箱論壇! \3 g/ H. g) ?. ]& E# k
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.
8 s& x* u# h4 z' @% z9 K  G& q公仔箱論壇
4 I- \6 K. [& F) {; x* r. D7 _) m7 V5.39.217.77:8898Construction 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.
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。$ ?. X+ V3 ^& L" Y2 T

1 s3 H2 ^8 q- _6 p$ z5 Q  D公仔箱論壇公仔箱論壇# a3 [1 C3 v" \  x( n: A/ o
[attach]1486500[/attach]
2 C  K! E+ F: y7 \5 htvb now,tvbnow,bttvb[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。+ v% Q& [7 U' f  W1 ], x2 l8 g% ^
[attach]1486502[/attach]5.39.217.77:8898+ o7 |; u2 w& ^$ |& {
[attach]1486503[/attach]
1 I1 ~3 d' d+ I( e! O( P5.39.217.77:8898[attach]1486504[/attach]
1 q/ V; n$ W+ I1 l; t2 D[attach]1486505[/attach]
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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8 a% i9 \- c+ p
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; V6 W4 p' _: V4 J
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。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。3 i0 p2 z; C) k8 i* d! k
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。
& e% X- k% e* L/ T; D, i! D5.39.217.77:8898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。
6 z. l. x7 k! c/ p5 `" \# x5 ttvb now,tvbnow,bttvb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 E2 v' d, A* M6 @. 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。 2 d. c/ F8 `2 J1 e- v7 f# r
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
8 h3 B2 |4 J" G0 }, [公仔箱論壇易北河-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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