本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.76; b3 _0 b* U m3 u
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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。8 ^/ S6 s* @; P* u7 x
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。, Y+ A% {; e/ p) Y
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Even after you see it, it is still hard to believe!5.39.217.76% M1 e$ m9 ` ~0 C3 w
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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。2 |; O4 l9 Z% m8 P# |/ B
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇" w9 i* Q1 z! d3 F5 o, X: F
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇. y7 e& i0 } t6 d* R9 ^
It is located in the city of Magdeburg, near Berlin.公仔箱論壇- z0 t/ y* j7 C! M# C2 L6 d
. c D) x9 k4 p5 f9 xThe photo was taken on the day of inauguration.tvb now,tvbnow,bttvb8 q; f }) H' Z2 D/ Z0 D
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:5.39.217.76 E5 y8 U8 ~ e
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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( I+ f. x+ l$ i2 V) a0 f" R7 M
Or just the weight of the water? ' M, Z8 {, _1 [! O: L! L
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Answer:公仔箱論壇1 E+ ^5 Q% ^8 R
, c+ c W- Y/ y2 r! V6 |It only needs to be designed to withstand the weight of the water! 公仔箱論壇) h: v* N: V1 N( \+ T. m% 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 loadedTVBNOW 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。" C7 d- F/ f7 M! @1 `# W
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb" p8 s: P9 N2 w" t6 p& Q- J3 [
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.
, M. c8 ^( f! {# y; S' ?( r. _公仔箱論壇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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' `& v' O1 \) }6 k) OTVBNOW 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.
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