本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 % o3 d2 X+ t# `0 D
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If you are not a Physics person, read on and learn a fact of physics. / f5 r% G- |2 I# P# e" [
AMAZING!
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. `% W6 _# `5 G7 h& j公仔箱論壇Even after you see it, it is still hard to believe!
! h5 [" F: M% z6 T5 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。4 J" N+ {! ?& K; d4 J
' H0 |) y% p8 x0 r% v6 R/ }2 xMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. w0 j1 B# X: W# }5 rThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- r2 {' N4 c5 `* t* L* C' L& h5.39.217.76It is located in the city of Magdeburg, near Berlin.
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# m9 @/ ]# D, x, ~# Q7 R5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇. x* m M" Y5 @/ i4 S& F, b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
, b# E8 _ a5 l& o0 T2 Q公仔箱論壇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。9 w: }. p1 s6 w; r6 X2 [* I
Question:tvb now,tvbnow,bttvb' s# S' ^, n b: a% ?/ P; S) S
5 o2 i! K. F" Y0 ]2 Btvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5 ?# c& q' x$ N* g0 R
Or just the weight of the water? $ e! \8 U% @0 X! [3 r" o
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Answer:
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1 Q$ l6 N( m2 o7 G. F# 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。It only needs to be designed to withstand the weight of the water! 5.39.217.764 _: e: V; t6 i$ F2 I+ _/ _
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公仔箱論壇+ s& h8 F7 A5 X* \' J/ C. @9 e
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# C8 D% ?2 b0 g; z* y$ Gtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
2 y' R+ z+ W8 {( {' Ktvb now,tvbnow,bttvbThe 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.
- B3 \; h, ~, M, Itvb now,tvbnow,bttvbThe 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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: T3 B# e3 X z' c7 |6 ?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.
' ? c6 p& y5 TTVBNOW 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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' N: d0 p9 T U& Z6 [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。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。0 d" X* Z* [' w4 @6 L$ u- r/ G
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。" K- c( U/ F! A2 W
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