標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb5 z/ \: {. N p. ?* r; L5 q) b% ^
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。2 ~8 z: p9 @* _2 ?
If you are not a Physics person, read on and learn a fact of physics. 8 b6 o! S& n" e# F( ^tvb now,tvbnow,bttvbAMAZING! 0 b$ r6 i* O5 r6 W; ?; i: E公仔箱論壇5.39.217.77:8898- E( N# W( P6 \7 J) _$ i
Even after you see it, it is still hard to believe! ( J6 N6 @0 }4 k- K, G) C[attach]1486499[/attach] 0 ?! @9 b4 m* K% A! g4 {* F Ztvb now,tvbnow,bttvb - g( e: S. @$ i5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇, ~# t* t/ x" u
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. " ]2 M# x7 N% X& @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。It is located in the city of Magdeburg, near Berlin.公仔箱論壇- @" j2 k/ X: c% T. y
- _* [9 F- ?% N3 g$ y& I1 b/ WThe photo was taken on the day of inauguration.5.39.217.77:88984 c' D4 G3 ^% I$ g2 c4 e
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. \% l3 W! O* \; c3 ~- s# l公仔箱論壇+ g# X/ y3 I) a6 z" T
Question: l% I V! o- x/ A% r公仔箱論壇公仔箱論壇$ c' x7 Q$ z' O/ k* v8 i* `
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 9 ?$ T, Z3 F: p1 r7 Q5.39.217.77:8898Or just the weight of the water? 公仔箱論壇' s- S! F4 s+ |9 M4 ^
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。+ Z' A9 _0 d# L5 Q* a" P+ ^1 d
Answer:tvb now,tvbnow,bttvb& _: D4 Q( o5 M" z
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It only needs to be designed to withstand the weight of the water! , G( w' f0 ?. R9 }( M5 Z5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded o& p9 B0 G, @$ J {# E* F5 Z公仔箱論壇公仔箱論壇3 b) d( {6 H% W( H, _9 ?
. h2 `; t6 P7 M; rThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb" ^$ i0 E6 u1 }0 [+ ^
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. 4 f' k- ?" ^, r8 L w G. j5.39.217.77:8898The 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" N* D3 @$ h/ r) E- f7 B( @) @
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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. $ W2 o9 J0 @ ?公仔箱論壇5.39.217.77:88987 m6 m. `! U) K# ^' \
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