本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇1 z& w% ^$ l; }; Y0 q8 _5 P6 Q
AMAZING!
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Even after you see it, it is still hard to believe!7 k4 S9 E% |: K) i( C
! D, u4 Q4 `$ P$ Z8 b( D! h( l5.39.217.77:8898TVBNOW 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 \" {5 x! T' x) K, v& K
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
2 Q( ^3 Z5 v5 oThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ o+ T( N/ y7 M* _5 A, FTVBNOW 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。It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb) ~, |4 J5 l5 o9 T1 }7 t
( N- u2 F _6 B6 r+ J# {tvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.! A! b$ g1 T6 o. w; m: b4 W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb0 d$ g( T W+ {- }" \( d s
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Question:
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4 q# F! i9 R. M& Z) {' ^- v公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb) c+ X3 o* @; X
Or just the weight of the water?
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% p$ g7 z: g2 _0 o8 p! X2 U* c9 RAnswer:
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It only needs to be designed to withstand the weight of the water!
+ f/ O, ~( O$ Y' f! B: _$ m M5 u2 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。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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$ x; L0 e; R% D( XThe Incredible Magdeburg Water Bridge in Germany
, b. w0 k( ?, l/ cThe 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.
+ z$ J3 h. ~$ r7 @( U/ HThe 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. * z1 V7 q. u& ]; Y0 j' c) G3 ^
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。; v$ |, ]: v5 D/ a- l" e4 ^- w
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. : P# T7 E* g+ F+ k
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b( W0 C C: j0 i3 Z- e. J1 \* ^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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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。- f" R! A9 q+ I
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4 q9 k6 C$ z7 Z Q* STVBNOW 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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