本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 . f; i, |) ^5 R4 e i5 z/ U
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:8898' `6 W! F/ N6 [* K" p
AMAZING! tvb now,tvbnow,bttvb+ ]1 }( _4 X' l6 A+ i! i- \
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
1 @, }3 Y( C7 O5 V/ k- ~, wThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
6 {" X2 z1 s! DIt is located in the city of Magdeburg, near Berlin.
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5 G% k6 v$ H* E4 A) Q. ]2 e& U: }The photo was taken on the day of inauguration.
. u' G6 W- E4 P( KTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
5 m8 {1 f" U) O0 {+ v* R+ m* STVBNOW 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 O1 H! j1 }1 A& ?Question:公仔箱論壇) @+ J3 ]1 q& s
+ k4 v: {+ Z6 Q3 B! {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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
* K& U1 h5 h2 B; X7 {" s- s5.39.217.77:8898Or just the weight of the water? 5.39.217.77:88987 @+ J6 G" p9 d% k
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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。2 U- S: M4 m$ K3 k$ P$ ^; J
公仔箱論壇7 A7 g1 |; y8 t
It only needs to be designed to withstand the weight of the water! $ k6 b' w/ r( D$ F. Z* o; ~" \( W
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded3 s7 f; ]# B" U- f* R
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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇$ V5 i8 }& s) S* s' ^
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.
q6 _, F5 ^7 KThe 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. 5.39.217.77:8898 C* K/ }, K' }. r
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$ F8 e: N& R
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.
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2 [% x* z' G3 w7 q) 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。
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