本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 ! ]5 {8 C1 `9 y# T
3 M& u$ x1 N' H E2 CIf you are not a Physics person, read on and learn a fact of physics.
! I: a, W. B- {) h$ htvb now,tvbnow,bttvbAMAZING! 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。" b4 H2 \: @ U% s! N6 a4 [
4 z, v3 w; `+ K4 Y: |+ EEven after you see it, it is still hard to believe!6 n6 N9 c# K2 _) }6 }
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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。+ e4 L5 N- D: M4 l) T) F" w
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
4 S8 Q7 v8 D- K, w* L8 C% N5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77:8898+ B( W" x! W" J; [, I2 k! w
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb5 p7 W% b6 Z' k* p
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。9 b, _& M/ J, D/ ]* k: o9 V
The photo was taken on the day of inauguration.
9 S! m2 S" d+ ], r& i, s1 ~tvb 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。) I* Y! P* u$ n0 H6 @! b
% e8 O$ C3 A+ ~, j$ a- D8 F$ |公仔箱論壇Question:
6 O) p. ~) F, k2 u' w; z: K- f$ h8 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。. k* w( s( N9 `5 t. X
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 m# A6 o/ ^ R; T. mOr just the weight of the water?
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Answer:
6 A; e* {! @4 w: N& e1 Ktvb now,tvbnow,bttvbTVBNOW 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 r# _6 |, x% o# u$ e
It only needs to be designed to withstand the weight of the water!
# z" J1 x) ?8 H5 T% ?3 |5.39.217.77:8898Why? 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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公仔箱論壇5 _- c. S" m4 x) K" @ z
The Incredible Magdeburg Water Bridge in Germany
+ S* @ |, |9 cTVBNOW 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 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.
- |) N2 A& M, h; m- m# @公仔箱論壇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。) ~$ [: P' K* V: r
% G: Q2 E* ]9 G+ B0 Y4 a3 bConstruction 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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7 e, D. D0 a& ?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 k8 I, d7 \) p# A3 i
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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。$ U: o& K& g0 b
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