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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 tvboxnow.com' v$ y7 d7 n- o8 _) L1 }

8 j* F, v; M  x0 q4 _  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。If you are not a Physics person, read on and learn a fact of physics.   
9 n0 ?. k# \7 ]3 {: V% B. utvb now,tvbnow,bttvbAMAZING!
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: n1 U  R2 G' ?3 `Even after you see it, it is still hard to believe!

$ n/ [8 u4 L. ^; X! 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]1486499[/attach]公仔箱論壇) [2 L, h. E* O1 R& l

! X+ x, L/ W' p: T& Ptvboxnow.comMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. z# C3 k0 u+ |9 r( Y! xThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % {2 X' t# {; O) G- l2 h
It is located in the city of Magdeburg, near Berlin.
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 D/ ^: f& l( w" g

0 a5 S# H5 b" i5 a公仔箱論壇The photo was taken on the day of inauguration.
9 L# ^# ?' |: u* _To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:

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& x5 Y1 h0 h9 j& S( F3 XDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇4 E6 k+ ?- G# W7 t& k  E) H
Or just the weight of the water? - t; ]; N- M# q* J
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Answer:
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3 s+ `3 Y! }  d/ m& K公仔箱論壇It only needs to be designed to withstand the weight of  the water! tvboxnow.com! x9 \5 b" M7 H( R
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

0 U- G! v+ u0 L1 R$ i6 U- @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。
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The Incredible Magdeburg Water Bridge in Germany
* o$ J+ k& f/ S1 {6 Z5 m' A+ htvboxnow.comThe 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. 4 a9 u& C) Y, ^

% R# r3 B  Z2 A1 Y$ }; u' a公仔箱論壇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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[attach]1486500[/attach]
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[attach]1486502[/attach]
( j! f# k; n' D" l; qtvboxnow.com[attach]1486503[/attach]
4 G8 C( V- _% {$ C% o/ R* S公仔箱論壇[attach]1486504[/attach]
2 @7 ^3 Q3 p0 ]' D+ C: w* v4 rtvb now,tvbnow,bttvb[attach]1486505[/attach]公仔箱論壇+ {- H- o# u7 G" @' I

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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 y9 ]7 t0 C) [! V7 }
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
9 S6 i9 c# ?4 j8 l8 H" s* B也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。1 t( Z5 m$ }/ p% H
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。1 Q* w2 A- k! p; [1 ?
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。
$ ^; i) W& f8 I/ e" M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。( m% T* j  z6 c; Y- Q  t
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。 公仔箱論壇) |1 @8 S  l8 `  _/ f- b  _# N" D' u: c
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
$ Z# V, S7 x# V7 |7 A* Ftvb 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。
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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