本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb7 P/ W1 R: ~* r! q
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If you are not a Physics person, read on and learn a fact of physics. 8 |! z; S8 u/ v# K% j
AMAZING!
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: B6 h3 q1 X% Q3 \- ~* H5 h* D7 V5 JTVBNOW 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!tvb now,tvbnow,bttvb% d' m# N G! R4 _. b @" P+ L
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) m+ y. U& r( s; W5 H$ B4 o+ PThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
* [+ z3 k8 Z* B. i' PIt is located in the city of Magdeburg, near Berlin.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。( T' C" ?/ ^, D% u. j$ \4 W2 g
1 K7 Z5 U1 j# | o7 X3 \tvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
( j4 l& t, {" `4 P4 s2 |5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.$ l) }. c* I4 |1 O
+ Y# @, x) b) a. v$ J+ K" w5.39.217.76Question:
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6 }0 ~5 C7 @ D+ M& |tvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,- O; j7 x# b/ |+ z
Or just the weight of the water? tvb now,tvbnow,bttvb# a* C) {* G6 U, x
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It only needs to be designed to withstand the weight of the water!
1 v2 u+ m+ X d7 r/ g5.39.217.76Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded: z/ B; l$ {) n& [0 O# m- w+ [! T3 {8 o+ |
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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。% t. h. c* e! ]& _/ |/ ?# ^
The Incredible Magdeburg Water Bridge in Germany
1 Z4 u; m/ w9 L5 g6 i5.39.217.76The 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* H( r4 x1 R) r/ ]0 X: l+ ]8 A, ^
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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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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4 {$ F* ~1 E) P% V# T. j# ^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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( N9 F, e# h/ FTVBNOW 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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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* Q1 V# Y9 Q' U
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