本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
( |0 H/ \# \7 U* n8 o5 C, U0 R ^3 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。
2 D$ S2 x, P( w- \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。If you are not a Physics person, read on and learn a fact of physics.
5 _3 b: ?- q" `9 E2 o0 z* Q TAMAZING!
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% V+ T2 ?2 f7 AEven after you see it, it is still hard to believe!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& u( l9 `( o% K
" |4 \9 s" M# w' ?3 K' }- 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。: Z$ z' h: e' b D3 l8 s; m
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
, m2 v; k! {8 y) i# MThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
* n+ {5 y6 D0 c; i' j( U) ~3 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。It is located in the city of Magdeburg, near Berlin.
# I) t) L) h4 p2 j2 O$ q1 ?* zTVBNOW 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。
0 n) x! } k1 S+ o3 `' }: f公仔箱論壇The photo was taken on the day of inauguration.公仔箱論壇7 `& f3 v4 a4 m3 [! R
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
6 i( }4 b- {5 Stvb now,tvbnow,bttvb公仔箱論壇* Y3 y0 V1 S$ E5 L0 {
Question:5.39.217.760 J7 S/ B- F& Y( U- R
& r! K" i! Q9 G" k. [8 a0 [5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,3 v$ f. l5 X" ~0 t& v, R
Or just the weight of the water?
7 V, v) ~) v1 g* Z! F+ 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。
& F- x- c" S8 u+ `9 dTVBNOW 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: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。4 G5 P4 i9 a2 l$ u5 Z" r! X5 @; E
6 S0 s4 |' k4 \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。It only needs to be designed to withstand the weight of the water! 5.39.217.76$ s: H- U' e! q7 B
Why? 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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5 r% o2 Z( t' D1 B1 |0 A1 r公仔箱論壇5.39.217.76( T( |$ B4 H. ]' ?* M
The Incredible Magdeburg Water Bridge in Germany
' p7 z% p- `9 Z: {& YThe 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.5.39.217.761 S9 e g3 q$ |6 O- c; D
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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" A" p, @! g+ \+ i5.39.217.76Construction 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. S- v0 z6 o9 a; B2 ^) U( O) Y
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5.39.217.76) r: ?- m4 ^4 }' A' _0 R* x0 R) N7 D
! C% i: M- F8 w5.39.217.76
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