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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! p7 ], V7 f' E0 K: y

; Q! b4 I4 G7 \. dTVBNOW 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.   5 D6 x/ ^: Z# t, h6 M; Z
AMAZING!

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Even after you see it, it is still hard to believe!

; F. M7 a9 i5 w: S6 O3 r1 O( w. ?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。" |) p) h( a0 H; Z: Z

( d2 E" q8 K, 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 4 P2 l3 f. `5 @! \2 i+ B8 f
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, b( f/ G; i* ?5 ^4 zIt is located in the city of Magdeburg, near Berlin.

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8 o4 K" V9 F; x3 b5.39.217.76The photo was taken on the day of inauguration.
) k/ g; @1 X& ?; i1 {  uTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76/ b! h0 i) r, f# {. x

. I" P5 q+ n8 o# J9 _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。Question:

# \0 k. d7 a) F/ ctvb now,tvbnow,bttvb
# r! o, u* [  y: ~- i; y5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; H& S) K, ?5 D, L7 ^9 B! J5.39.217.76Or just the weight of the water? 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 s" [  M1 ^  t3 B# }

0 X( i9 D' ^3 \/ [3 s" Y+ |+ mAnswer:

- S5 u& x- y# a6 n/ N0 Ttvb now,tvbnow,bttvbtvb now,tvbnow,bttvb) {7 R! F9 T4 g
It only needs to be designed to withstand the weight of  the water!
+ B* O4 a- n& Z# V. mTVBNOW 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

" u1 x) G  J7 k: ~7 C# n0 `+ ~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。+ G) J7 s% `: B# E. g  E- \0 ]
tvb now,tvbnow,bttvb% W6 K6 p% u; X3 q: X, f
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇6 O6 f- Y: b  t2 z
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.
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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. 9 S' C6 t5 e% [' ~' {

4 I4 ]/ e3 ^1 JTVBNOW 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。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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8 H, }9 `6 a6 l4 T2 b1 B( nTVBNOW 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。
- S& j9 y; E* o- u5.39.217.765.39.217.76: T+ [6 R  [* k" w5 e
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5.39.217.76! a# a/ a3 m" s( [5 B* Q

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平壤核子能源研究所
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
+ u  o3 I5 W7 [9 ^5 wtvb now,tvbnow,bttvb連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
, G$ M/ m& O9 l5.39.217.76也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。  C4 i" Q/ f. a$ J/ Q
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。& t& C6 d9 g3 Y# K
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。
& m9 r* x9 k5 q1 @( c5 O5.39.217.76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 萬5.39.217.76+ e9 Y% h5 }2 \; ?
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。
; G" x: t2 W! Y  R$ n& {6 m2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
  L; d( \% Z+ Y# W4 W; 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。
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  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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