本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb$ h7 q0 ~/ C9 M2 C8 ?: c
, s( X' T& A2 rIf you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇$ k: Z7 O& O1 Q/ O8 w# @' p
AMAZING! 公仔箱論壇" H b0 ]) a- i) ]0 V; C: \$ }
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Even after you see it, it is still hard to believe!
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9 e/ g# B1 y$ f3 c9 v4 x TMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 s3 F/ ?; |& p+ K& [( K1 R3 ^8 eThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。& M$ d% F; x% ?, P( E0 X$ r# o
It is located in the city of Magdeburg, near Berlin.公仔箱論壇7 Y: ]0 _$ r% g! _- J
# H) n' q( W Htvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.公仔箱論壇2 X' X2 A6 N/ ^* Q/ v5 c
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇/ E0 Z. n# V* y# Q u& D
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Question:5.39.217.77:8898& H, h4 v0 g- P6 ]
1 E+ Z1 ~5 \6 Q1 E' A% u0 UDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
3 E' z& f& g! X8 F8 zOr just the weight of the water? tvb now,tvbnow,bttvb9 ?7 A. Y( A7 f+ R B) Z, q
. {" R$ S( S6 y6 A; N, V6 J: T" H公仔箱論壇Answer:
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It only needs to be designed to withstand the weight of the water! 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。' ~- @, S2 s9 @ K, L3 h' Q, X
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898" Q; r4 H4 b& } ?. k; u
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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇4 P- E# R8 f, P `2 Q% S' m- C
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.
; f& x: ~; [! \ x; t6 [& 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。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. 公仔箱論壇5 j9 j0 d9 Z- K; N: J8 ~
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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. 5.39.217.77:8898* f( l6 B9 L3 M6 A% o" J$ _' t$ p
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/ o0 c1 D& e) L0 j* 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。
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0 e7 p0 o1 @; l- c- j: t7 LTVBNOW 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+ Q% `1 Z+ g
9 d, R5 e+ v* j0 j% b1 U: 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。/ k4 h( Z4 L# \: C" n. {6 ?9 I
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