本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
: r) R: `: N) VTVBNOW 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。AMAZING! 0 w0 e4 K0 g% r+ F8 ?/ w f$ ]1 e& L2 \
/ e8 Y+ O1 y9 B1 ?2 Y5.39.217.77Even after you see it, it is still hard to believe!5.39.217.775 C, r4 O" @9 q$ h
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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。; M; \* j# ]2 p/ W+ E: q3 }' u# G( _
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
' x" D% Q8 i% ^- AIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb( z7 p% O; i K% J) Y
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The photo was taken on the day of inauguration.
# c2 q! u3 m0 q: L2 ?/ mTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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; T, {9 Y+ @& G) s+ s+ _4 ` i9 t公仔箱論壇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。6 n2 x% K9 K: q9 W) E7 x
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, h( v) b, ~) v3 c
Or just the weight of the water?
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It only needs to be designed to withstand the weight of the water!
, A' Q4 U; [2 k1 U. `7 |9 s( e _% 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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77' A, Z9 J3 e C7 c3 B/ d
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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, I+ y, C& g6 d: t, s7 j- z
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.
% |8 x: i* X$ V- A0 O$ Q' I% bThe 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. tvb now,tvbnow,bttvb4 X9 U7 J: d3 }
) ^/ ^& }7 |' ^7 n B- C! xConstruction 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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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" p4 M) C& V5 `7 s/ F* b
* y, B: z7 U/ J" X& K9 {5.39.217.77TVBNOW 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。3 w7 d1 A. n" u8 p1 c
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發表於 2011-10-2 10:09 PM
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