本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 z2 M4 Q) e4 @$ m1 D0 k; B
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If you are not a Physics person, read on and learn a fact of physics.
% k; y6 N' _# e1 X" o* j公仔箱論壇AMAZING! www1.tvboxnow.com8 E: U/ _ {0 m3 y; p0 D; M6 r
$ { `: ]4 X* ^0 r9 JEven after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
+ _: L9 r$ s1 l' yThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
. f5 {( Y1 d: }; x! W' n* x# Xwww1.tvboxnow.comIt is located in the city of Magdeburg, near Berlin.
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# X. M2 C, Q7 E2 z7 b5 utvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
6 J9 z4 r; P5 `- W; z8 [8 p0 Ctvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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 c0 k* W6 b7 d1 ~% b7 p$ \
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Question: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。" p7 P5 S/ }% b
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。* O/ ?* Z |1 C3 g" {6 O& b7 ^% Y; {* M
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% l3 J8 T9 L# y( V0 KOr 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。3 v R7 o5 x9 B( v! W1 p* z" C2 \
8 o# C# `2 |# S8 b公仔箱論壇Answer:
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5 l" m* f8 K, ^ v/ ^+ iwww1.tvboxnow.comIt only needs to be designed to withstand the weight of the water!
: l: G) t% p9 t( utvb now,tvbnow,bttvbWhy? 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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. i5 K% j+ a, O$ U. h公仔箱論壇The Incredible Magdeburg Water Bridge in Germanywww1.tvboxnow.com( O/ N1 w6 p8 p6 J4 e9 H
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.
& m* u+ M( {% u0 u6 zThe 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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8 o7 ]7 t* E& c- `( Awww1.tvboxnow.comConstruction 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. tvb now,tvbnow,bttvb2 ?" Q2 w! n/ D4 Z, q
& g& a& Z3 U3 I, A% W+ m9 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。
$ }% d/ }, ^" A. t, a+ lwww1.tvboxnow.comwww1.tvboxnow.com9 Z2 s2 \* H) J9 z4 u
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