本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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, y0 ]$ @- ]( u3 NTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics. % N9 c0 g9 u" R5 X/ x, X' \, s+ C! L
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。, a7 S0 Q& [3 B z ^
8 f4 |2 `" f, O: VEven after you see it, it is still hard to believe!
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0 Y. t; \ ?: W- n9 L6 K公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb& n4 U6 Z4 b( q4 W2 {5 p! ?: R# V$ ^
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
) Q+ q4 W3 R- y. N5.39.217.76It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
5 `9 Y2 \/ f: E- D, ^8 K% {To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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, T( D( }$ ~$ UTVBNOW 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。Question:公仔箱論壇" t- f8 n! l2 ?- \
4 G0 e! J* m8 x' T0 J1 v6 n, x公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ i$ N1 X, o( }, GOr just the weight of the water?
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Answer:公仔箱論壇- w/ a0 }6 U; Z% U2 ^9 @. q
# D! o2 ?5 }' @2 @0 b: E公仔箱論壇It only needs to be designed to withstand the weight of the water! 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。 J6 ?% m' E& n
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.761 u9 I0 o1 @& T! @- G9 Z) K, U
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$ d. I" v+ X9 ^4 y# M! M. O5.39.217.76The Incredible Magdeburg Water Bridge in Germany
7 T! q C: w9 J4 L, 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.
) F& }$ G5 u2 p9 K ?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. & D" U5 p5 w- i- n! n0 i* b3 C9 U
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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. tvb now,tvbnow,bttvb6 I8 _. b6 |$ d
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 g" n/ J/ f7 {2 K. g: H5 |
9 y! ~9 A3 ?# [$ }) 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。
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9 X+ g- [) s. o9 ~6 B# r公仔箱論壇
3 g+ g1 t& s; l( d2 j i& r; UTVBNOW 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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4 k, V/ n6 H2 r7 {8 w `( i, HTVBNOW 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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