本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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3 H2 ]4 N) P# g: l+ M3 J公仔箱論壇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。# I: L% W5 S$ C! x
AMAZING!
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) X. V1 @+ t, \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。Even 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!
- C1 v1 p! w7 N- F! z8 x5 Itvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 X% t. o( q% h% e7 }It is located in the city of Magdeburg, near Berlin.
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0 V# B, K8 N9 x) \3 n' p4 XThe photo was taken on the day of inauguration.1 [& s: `( e/ e
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.# |2 c1 z% l0 v; B2 }8 [8 `
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Question:tvb now,tvbnow,bttvb5 [& ^9 C- [, b$ u' y! r" Z
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 ^2 J( A* j: M5.39.217.76Or just the weight of the water? tvb now,tvbnow,bttvb( V# ~, L" H/ F8 u. U3 S# V
0 ]! Y2 K5 N; _1 YTVBNOW 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。Answer:5.39.217.767 @9 }' R! C$ M) z( n: a) c1 a7 n; u
. K1 L/ @! M9 A. `/ k" S公仔箱論壇It only needs to be designed to withstand the weight of the water! 5.39.217.76( U8 s; i8 s8 X- V& `
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.76. y( Z1 `7 M. t8 Z, T% V" s
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7 q7 ]5 a/ q% O/ }" j1 u; M, K- i1 tThe Incredible Magdeburg Water Bridge in Germany
9 B0 m6 t. b& R" yThe 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.
0 N" ^: i+ U2 Y8 h9 j1 m4 IThe 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. 公仔箱論壇9 c3 m5 Q0 F/ | s: X
: P9 p, a. O# j' J1 a7 m% U0 wConstruction 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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; q J( Z7 O3 O$ ` U& j& B+ g! W) 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。tvb now,tvbnow,bttvb" n# F/ q( F; ?* w/ @2 g" ?
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- C7 n) m7 ]" f# ?. z1 g2 nTVBNOW 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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