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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
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9 o0 Y3 k7 F; U) J% h* c8 W; Gtvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.   
3 J" A. J# D3 A' L0 w3 D- G5.39.217.77:8898AMAZING!

( ~2 r4 a' _& O2 X公仔箱論壇
) l0 P, Y7 a/ r4 I- stvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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) X+ ~. Y5 c" `; Z' O+ E% c4 V5.39.217.77:8898Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:88988 g5 a5 h  m5 Q4 ?9 o
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
+ c, A- W& N6 |! N1 O6 k2 D5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
- m. R9 ]* }4 NTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇8 `) m8 E( S5 p& @

, U; ]: y8 Q; P- |9 Y: f8 ]8 CQuestion:
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; h) @+ S; F6 c  D6 j3 fDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
5 W8 V5 A( n  H; Utvb now,tvbnow,bttvbOr just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water!
' j  {$ }) Y! ^8 E5 P3 g4 ]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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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb/ S/ r$ }6 ~  M7 @7 s1 ~  _
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.; s- t! W& ~  f/ \3 ^
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. + y0 B. O2 r4 g" ^

# r. \" m$ H& t/ W' m& j0 \% r) u, rtvb now,tvbnow,bttvbConstruction 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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9 K( x: N% D, a( p5 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。5.39.217.77:8898/ i6 i; Y0 ~/ d# |% i

3 N0 i4 k. H$ ^5 G: R8 J+ r$ u公仔箱論壇公仔箱論壇0 m& p+ Q  @2 N0 x2 g) r: L
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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。/ h/ {- G7 j, g) D/ ?) C. |( a# m% g

" R. s& {3 P) 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。4 M% K$ w. y( z( R0 q$ l: Y
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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9 t* Y6 b1 t" Y4 a! W
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
2 T% L4 b  [3 c3 KTVBNOW 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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
0 ~# z3 }- _4 w/ I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。7 I+ Q% @- k# H6 M0 N
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( G' K4 C: x8 z# x& j
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
8 Q6 c( N: V4 @4 s, V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+ ?/ s8 V( U. _6 K$ H
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。6 W. Q: W" Q: E" }) M
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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