本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.765 `5 T5 K u+ r/ ^$ C, A9 g
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If you are not a Physics person, read on and learn a fact of physics. h5 [! S/ l7 O4 ~
AMAZING! tvb now,tvbnow,bttvb; t. ~0 t0 G, ?
- p3 ]" O& H& F$ F3 ZEven after you see it, it is still hard to believe!
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! L4 p+ D$ R) j' b! I& A# t' ITVBNOW 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。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 \/ Q6 a( p* ^+ X
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- a& g# V2 Y* C2 N/ ETVBNOW 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。It is located in the city of Magdeburg, near Berlin.: \" W- _1 }1 C
* A8 z! k/ V5 {* N4 KTVBNOW 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。The photo was taken on the day of inauguration.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。; W& N0 q9 N4 Q' u0 s! g: i
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76% T0 ^* Q; \& x+ k- E
) t( y5 u# J- g0 d! j+ _2 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:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; [9 S4 Q/ N' M5 ?tvb now,tvbnow,bttvbOr just the weight of the water? 公仔箱論壇- u: S6 b: C) m& d4 @6 y
9 R) L8 v" B3 R& X1 R# S2 s+ bTVBNOW 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。Answer:
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5 n3 h" I* z5 q- b9 c) B" h5.39.217.76It only needs to be designed to withstand the weight of the water!
W x; J# R" w* |8 ?9 T0 Xtvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
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9 @0 c/ g' j! yTVBNOW 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。
A w5 a. _' |9 L8 {tvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
" p) W4 ?# U1 s% oThe 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.
c2 E1 z4 S* T0 sThe 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. 5.39.217.76) b% e+ _/ w" |9 g+ B0 p
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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. 5.39.217.76% j; c; ~( _- B, k8 l" e c
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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。1 M/ U X) g" k
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