本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
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3 C2 k! o5 v- R3 {& N. i1 {tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!3 x/ N9 |1 z8 }
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
& J5 b# X3 l: L: \, ?" L0 bThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
+ {$ a- U5 h7 X% o; NIt is located in the city of Magdeburg, near Berlin.
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, a" b9 S; S6 _: G# |) C/ FThe photo was taken on the day of inauguration.5.39.217.76/ A. s2 R) [$ a2 w* l, B- E) d
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。 R, o4 D9 _8 f3 _% A2 `* ^5 }
, H, K, {7 Q& Q8 j7 gTVBNOW 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。Question:5.39.217.766 }' |3 L2 U' ]1 |+ h: O
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; U' n3 B* Q6 W" J/ l- a6 d3 c公仔箱論壇Or just the weight of the water? , n" b+ @2 b1 h: h" y
+ [% e# s. t5 e: v. 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。Answer:3 D( o* Y+ Y% ?
* q% t+ f+ V2 N n. z4 V6 d7 p5.39.217.76It only needs to be designed to withstand the weight of the water!
% T$ X, r& s& V3 H' P; 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。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
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb4 y3 y; N$ S" t7 j0 x$ o0 _( b+ I- E
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.
' u( M5 j( `4 e8 s- YThe 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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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. 5.39.217.760 J- k6 j% @; ~/ y
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7 q9 g4 q: s8 F5 G5 q( 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。( w5 u5 x6 }7 F. U! O6 D
% I* g+ I* E8 @" _% |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$ K9 y# o! c9 a: GTVBNOW 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。
- `/ H- X6 z( n& d9 A! E! d$ N- aTVBNOW 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。- P3 C* V, \1 K- G5 c6 I9 ?
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