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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
& J$ g/ R) @1 T- K' Z5.39.217.76TVBNOW 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。8 a$ U& |; I* I" `( G. M
If you are not a Physics person, read on and learn a fact of physics.   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* W+ t! Y: b9 q9 K) c3 R* `
AMAZING!

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) H4 r9 l3 u% R8 u; f; w& oTVBNOW 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。Even after you see it, it is still hard to believe!
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/ q' d2 Y1 h$ X$ 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!
: K, S) M$ O( {7 x8 W2 X9 ^5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 9 \5 h" {- ~! a/ }3 x
It is located in the city of Magdeburg, near Berlin.

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- c/ _- |9 f; C. e+ s4 t5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇8 A( i1 f" }# [9 t  U: N, q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
; R; f: U% [* h' 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。% k" M7 H8 Q) W9 L
Question:
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% L! Z) P2 D! O' i: j$ t& N! \Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇3 {) t, Z" r, p$ M9 q$ f- o
Or just the weight of the water? . `" [( ]; H9 U

2 z9 z8 g: L, x5.39.217.76Answer:

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It only needs to be designed to withstand the weight of  the water! 2 a, t! c' I5 q; ~. |0 m
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

! z' g# b; @" s+ I) r4 `: 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。
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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇5 G! H$ t+ `6 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.
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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.
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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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( H$ T4 C7 y  W4 _tvb now,tvbnow,bttvb5.39.217.76/ W  N' [& r. _! e  h+ O7 A$ s

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9 e2 h2 w9 ~* J6 \9 F* Ctvb now,tvbnow,bttvb
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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。, w( O- W# a. B& F7 |% O5 p0 @
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇5.39.217.76, c. n+ A5 E, s* u/ y1 _) i
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.762 ~2 E) a9 x1 i0 L" 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。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。, a, {0 ^" D4 t
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。
9 z" d1 a* k9 g* M' m5 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。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 萬公仔箱論壇( T" u# C$ N! O; b8 Y' V! v6 r' q8 P; U
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。
( k9 k$ i* x. f3 F' htvb 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
9 m% q0 p6 u0 dtvb now,tvbnow,bttvb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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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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