本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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5 q# S% u+ m6 }: [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。5 j* s) j$ n, B$ d0 q# \
AMAZING!
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( q5 h9 {2 E9 z% @# etvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!5.39.217.763 I7 S0 Y& q2 m' r% s5 e
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。0 b f7 r) t" l' C) r
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
8 r2 g* d& Q% n4 L. Z% O: H! [% BIt is located in the city of Magdeburg, near Berlin.公仔箱論壇% o( c1 i+ o9 W
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The photo was taken on the day of inauguration.
7 Q$ [! L" z! w' y2 Stvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb: k. i2 D- {1 ~- F
~% `8 U5 a- LQuestion:, C4 k& Q9 F3 K; E3 P2 h, D& Y3 X
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇/ n5 y' a5 y/ q: p) S6 F1 l
Or just the weight of the water?
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; ^ ]% ]! o) K6 D; j) LAnswer:
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9 p2 f6 G6 x4 z; j: mIt only needs to be designed to withstand the weight of the water! 公仔箱論壇4 X% I6 O* G; P! O& W" r
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
3 Z( B* @$ t2 XTVBNOW 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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The Incredible Magdeburg Water Bridge in Germany
1 _: g4 h+ z7 |# A9 ?& g [4 C7 `5.39.217.76The 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.5.39.217.76; W" m8 Z! W* E/ r9 K: _
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.
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; r/ X* C h; d; }5 d9 q: ?! 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。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. tvb now,tvbnow,bttvb3 }$ H X b* r$ c$ L
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' j' ~$ a9 A) d9 V0 A6 [0 \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。
) Z7 N6 F- h3 h8 w+ J4 UTVBNOW 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。4 o5 C1 t! a% [& {9 |' D6 c, O9 J4 d3 s
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