EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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 g1 @) }+ s+ l+ l' p
; L3 n6 e% v5 x pTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88986 l) b( A% \0 ]2 f. t& N
AMAZING!
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Even after you see it, it is still hard to believe!
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' }. ^: e. s& L- H; oMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. ]& b! ]8 p2 Y6 c" B, bThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇/ Z3 a4 K7 T5 {
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
' W# ^" Y7 I: I5 l) Y/ k/ GTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇" a3 ]( T6 p2 K; Z! M1 b
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Question:公仔箱論壇2 C2 h9 U3 F$ | w( J# A
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,) R. F/ C% r+ t3 w# l4 ?
Or just the weight of the water? 6 H% c/ B( E$ x3 l2 {9 b7 m% x
8 G. w# _0 ^6 D) {3 f: I4 g+ Q9 aAnswer:
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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。$ w w# ?5 K3 W: H
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! T( `' `: P7 x( j0 {! n
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The Incredible Magdeburg Water Bridge in Germany
- U) \4 _& c g$ zThe 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.
, o" [ O/ ~7 A' `% z; @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. . c- @' A/ K; r5 W" c
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。" j: v0 E5 F* z: M ?) Z
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.
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5.39.217.77:88987 J' x* _3 ?) s" I1 L
3 u+ @9 g4 ]% u( C* N% x7 m; r! @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。
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; l* [, C1 m/ V* @! 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。" \ S4 E" k- d9 ?) }2 O: ?& H t
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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。& G0 I2 Q" U# ?* c8 G
, C* D7 e' w, F3 m9 n/ R' jTVBNOW 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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