本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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5 F" N. q( |. l9 ^% p公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.
# @7 F4 s. ^* v% kAMAZING! 5.39.217.76- \, p# [( |$ C# X4 ~! U* ?
7 M2 r! f% Q. S" ktvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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% f/ x: {8 f- Y& M. F$ t3 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。' |; @3 N8 K# V- ?( c" E
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ' f; D$ v" i9 k+ i& [( `
It is located in the city of Magdeburg, near Berlin. {0 G" r3 U8 _; N! |& o1 s/ ~
# `, A: \/ ? U7 rtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
( Q \" _, z$ R2 u5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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$ v. \8 D9 c: I& K7 _' ~/ cQuestion: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。& S7 t& V0 T: G) d% {' s2 @
! V$ _2 ~8 m9 z" V5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
) C# D% n; R- F8 H& g2 K; gOr just the weight of the water? tvb now,tvbnow,bttvb% g* Q# G4 n2 o9 p( w' O
]) r) q: q- K3 b, }$ G# M0 k qTVBNOW 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:
" W$ K( k8 M$ M" t) Y4 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。
. [6 ] U; q0 I; h) W0 G0 a5.39.217.76It only needs to be designed to withstand the weight of the water!
7 Z- i. D/ X) C9 z% E- ]6 n5.39.217.76Why? 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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7 {5 b9 ^' r: h/ a5 A* IThe Incredible Magdeburg Water Bridge in Germany
: w* R) @( X: M3 BThe 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.
% L2 l+ B. ~, ^* x7 M8 e; o5.39.217.76The 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. 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。* d b7 y8 @: y$ X
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。+ A/ r- N _3 p& L- e
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,bttvb1 W% J7 Y* t: n# z- O: j, z
5.39.217.76# K2 a* d8 O: `1 l5 j
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tvb now,tvbnow,bttvb6 ?4 n/ X2 r: r1 b0 w% ]- e
5.39.217.76; w3 Z! y/ Y. ?
tvb now,tvbnow,bttvb7 l% u* C: u) }' R ^5 j7 r
$ ~/ ?; E* S) \" z$ 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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