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.
/ W( v; l1 j2 Z$ O, O7 aAMAZING! 9 |/ r; e5 |4 Z) [
* Y5 Z' n! K& g* o* tEven after you see it, it is still hard to believe!2 D% Q' G9 k8 O# o1 V
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5 }% F# {) H4 Y& F0 C* [+ W& i* L; Btvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
& [. J/ c# r4 j公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇3 l4 `* ]' k: f% ~' I' c
It is located in the city of Magdeburg, near Berlin.5.39.217.768 J6 C# n% J0 r0 Y3 c/ Y
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The photo was taken on the day of inauguration.
: M) D" Z; D+ F, D; U" a- \tvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
/ a/ g: q: y- c) w8 u/ W, M2 p E. [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。公仔箱論壇4 J6 x% ?* H+ y' z( I. F6 v
Question:5.39.217.76- l9 z2 C' @# `7 `. e
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,; Z* c5 z% H, j1 Q+ v" S+ R, q
Or just the weight of the water?
# V4 |9 V" A% q: P公仔箱論壇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。) x& v G+ ~. E( A6 B6 n
Answer: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 z9 L% c4 _! m$ Q$ r
0 ?- g$ r7 h3 o. l' Atvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! * |4 M8 f8 ^( i9 K0 W U$ @
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
6 C, I# q3 C6 \$ \, 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。: a- x6 G, B' y7 S2 n1 N+ l1 ^
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The Incredible Magdeburg Water Bridge in Germany
" `& w5 Y. U* v" L. ptvb now,tvbnow,bttvbThe 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.
) M2 k8 z6 M7 b l+ f/ 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。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. 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 e( ^# \+ i$ Z) ?+ F0 l
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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. 7 O3 |; Q& B7 H. z+ A
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5.39.217.76% e' h# `0 b2 q0 z/ A: P0 w
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* s, e; S6 V! [0 w" v公仔箱論壇tvb now,tvbnow,bttvb* O+ |" h/ s6 S" y8 b. O8 _" V
- q' B' I8 a$ ~) d7 z- 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。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 Z* y2 l$ ^8 y
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