本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
+ k' F% X3 D) M2 V" w" i7 b5.39.217.77:8898TVBNOW 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 M# A8 T( [( Z3 u+ @
If you are not a Physics person, read on and learn a fact of physics.
0 X# v5 z: h! N/ x公仔箱論壇AMAZING! tvb now,tvbnow,bttvb* B' U5 w' z7 R; f
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Even after you see it, it is still hard to believe!公仔箱論壇8 j# P$ f4 C1 F" Q4 N* v- o6 {
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) r" t3 b- r- A& j. }0 V- J/ @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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
7 o) }9 ?: F' u0 w3 A5.39.217.77:8898This 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。; Q! T c4 g( p. x- d
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
) F7 m# |8 j F3 o1 z( {公仔箱論壇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。1 T; Q3 [4 y! J& y5 M
2 B7 H! w2 B- H. W0 X" O5.39.217.77:8898Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,& p- q4 G. S% V# a7 r+ U
Or just the weight of the water? % U* \% o. K$ e5 K6 q( v0 d
; I5 n D0 P' c) YTVBNOW 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:tvb now,tvbnow,bttvb6 }. z% K( i3 w g5 f) O
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It only needs to be designed to withstand the weight of the water!
/ V- u1 f$ @& W! Wtvb now,tvbnow,bttvbWhy? 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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M8 T+ [ e) Q5.39.217.77:8898The Incredible Magdeburg Water Bridge in Germany& x* ~( {, s U& @& u
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.! J8 t% M: @) n; B
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. 5.39.217.77:8898# b5 t' ^- U" ], b+ P
/ t7 R2 l' o! d0 n, @1 ^2 CConstruction 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.
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& ]) V" ]3 `" i1 G7 A9 r' x+ b1 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。5.39.217.77:8898" H+ b; J9 R1 \$ O! r
; l% G: n2 |8 H/ a+ l9 i公仔箱論壇5.39.217.77:88987 l8 Q/ `6 Q: X7 i
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