本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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8 }7 I; V6 E; J0 B- 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。If you are not a Physics person, read on and learn a fact of physics.
: F8 T: u6 q( l' R3 ~+ g' x公仔箱論壇AMAZING! & ?/ V+ c4 }! w5 H
3 r9 a) ^+ m [- H" htvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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* g, |: w+ @. U- eMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb$ G( ^% I8 u& n
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb, F% [! `% Z. H, q& r; N/ @% i
It is located in the city of Magdeburg, near Berlin.公仔箱論壇( _& p- o' s% F* m
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The photo was taken on the day of inauguration.% \* T1 D. N: C# T% H2 U4 D3 f
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。4 @9 ^2 |# Z. i( s) J% Q+ }
3 J4 ^0 R6 ^+ c- @: Y! AQuestion:
, ~" o: Z5 d" Z N* Q+ 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。
8 [# g4 T- p; `/ T7 i公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 }! |& G7 y- S2 d% k5 [7 A5 y1 mtvb now,tvbnow,bttvbOr just the weight of the water? 公仔箱論壇 Z) f' `9 y4 U9 \* [* @
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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。# H3 z4 A7 K9 J! R
( o9 `+ {/ S! Z' U/ R8 lIt only needs to be designed to withstand the weight of the water!
r! b1 k! u* W* M' ]2 eWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded4 D, T1 T% U2 P: R
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。: o3 _+ a$ A1 }" E, c* v( [
" d* ~+ h, H$ v4 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。The Incredible Magdeburg Water Bridge in Germany
# A* P$ a w k7 O4 s5.39.217.76The 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.
! Q0 F+ H H W" N) o$ e, @: l0 D+ }5.39.217.76The 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. 5.39.217.762 p% s: R( c; _# T, b; j" t* i
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 G2 C" `: w& C _
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.
1 n0 ]# [; @4 }& g1 B1 [4 T% m. fTVBNOW 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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- |+ m" _8 T* G% B# [5.39.217.76; c: ?% v) v4 ^7 b
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tvb now,tvbnow,bttvb, B. o# i/ J8 I
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。& F9 i+ f0 o2 H
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