本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。; B j1 v3 i) b2 o' L* J- ?
# \! M! r/ s4 D4 M# F& ^0 L* o5.39.217.76If you are not a Physics person, read on and learn a fact of physics.
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3 h6 J# }! \4 I j8 c8 w5.39.217.76Even after you see it, it is still hard to believe!
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* d! `3 f- A4 @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。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0 w& e4 R" ?" L9 M
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- I: [/ e2 f" [' \公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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^+ z8 e0 o1 CTVBNOW 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.tvb now,tvbnow,bttvb0 J' o! f* p7 ~4 W. I L* \" h$ X
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。+ N$ ~! O9 i7 ?( \- a; X, y
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。+ [: v8 V# I, z" @/ K! l
Question:5.39.217.76& g; r; v( Z; O
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。- G9 h3 j" F( l, _; r$ f
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
& A6 ?$ b1 \2 jOr just the weight of the water? 5.39.217.763 q5 _% R2 h7 i( o5 u
9 Z" |6 D& H/ I, q6 Q& x/ ztvb now,tvbnow,bttvbAnswer:
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7 f; v2 c2 U) H6 {8 T0 v) IIt only needs to be designed to withstand the weight of the water! # W$ @$ Z& L7 |
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
* `% J2 ~, W* u; U" D- ltvb now,tvbnow,bttvb+ a. B2 x5 c+ T) }! r9 {9 r+ Z3 \
. X5 f: _2 |' |2 Z! 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。The Incredible Magdeburg Water Bridge in Germany* Y- h5 G4 W: z3 C2 _- H* U' F
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.tvb now,tvbnow,bttvb+ Z {& x1 z5 r# M, `
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. 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。, t# U( ~6 a3 e6 P% r# K; w9 m
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 n4 [+ Z. f, J9 R% u6 G* [. u/ O
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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* o5 J* g1 x% e, d' e/ f- WTVBNOW 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。+ d* Q! x& g; |9 p1 L
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