本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
9 `2 u6 X* H8 t! [* N( n" iTVBNOW 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 B- w* Z) H8 I5 r
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb7 A9 m# s) G8 J- ^1 \# x2 R( |
AMAZING! 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。, B$ k$ [& m; n! o0 U
3 M7 h* P: T( G) `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!
( i5 Y0 F/ p( e% atvb 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.
$ f% `1 G; q+ c1 B, v. N) U' atvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.公仔箱論壇 Q) x/ G& J; f9 N0 v5 ?
- c, }% f+ v& v; bThe photo was taken on the day of inauguration.5.39.217.77:8898' g3 y: }& V% g
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb o. f4 W- H/ E5 I# j& K& X
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。 _& ~. L; y; z
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88987 Q4 K( C' p- G+ Y$ D+ h
Or just the weight of the water? 5.39.217.77:8898+ S9 y5 W! I* V- k4 K/ f4 S
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It only needs to be designed to withstand the weight of the water! . W5 S: u: l# g. U% B
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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The Incredible Magdeburg Water Bridge in Germany
6 |/ ^3 |, Z( H q5.39.217.77:8898The 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.
7 g5 O. }0 E& B: gTVBNOW 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. " x: v0 t0 J! N
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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. 公仔箱論壇8 P N4 C4 Z) c& B) _6 H
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$ Y) A% E! V3 r* l# |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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