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,bttvb0 `. R3 {8 d) r( m& H7 ^+ q; J
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If you are not a Physics person, read on and learn a fact of physics. : O# T- @- T' g* z/ v+ w5.39.217.77:8898AMAZING! , E4 w: }+ D2 U1 H4 z1 z7 V公仔箱論壇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。6 Q5 r. }7 `) V5 k2 |7 F
Even after you see it, it is still hard to believe! 7 w; h3 P& v! p% l1 `( J[attach]1486499[/attach]公仔箱論壇# \* c% h) f' q7 g) k. U
/ L4 V! ]3 F& M: v公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! , ?9 i7 e. N% M( ]# T( ?& m! ]tvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # q- n8 B& J4 e; T8 Q: _It is located in the city of Magdeburg, near Berlin. : `, Y4 q* J gtvb now,tvbnow,bttvbTVBNOW 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 ~4 R* |; [' @) {
The photo was taken on the day of inauguration. , S" b X8 I3 r# i5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898' n H1 n8 s. X7 h: v
1 t6 `& O& ]3 B+ W) FDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb* t8 y: w; @4 J& \2 @, \1 \' z
Or just the weight of the water? " k& G ]. e! F/ m2 X, qtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb- o, M4 c% R! m9 z' I* U
Answer:5.39.217.77:8898% I) Z4 R) r+ p3 ^* T! J
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It only needs to be designed to withstand the weight of the water! 8 V% j+ w, x8 b8 z' {) F公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded8 r6 h. f8 I, j. | 2 ^- Q8 m4 {% `3 q) }" m
6 r3 N2 W( p* K K8 ~- w+ m* p+ Q3 F7 H/ ZTVBNOW 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 Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb) e* L8 v" d% K7 X
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. 5 l# x! J A$ h. ^: i公仔箱論壇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/ P+ F% p/ l( p& W6 C3 O" R) l' y4 |! j
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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. : t1 Q x# n- R d0 ~* P2 r5.39.217.77:8898# n O1 j) h6 R$ w* r! b
公仔箱論壇$ F* z/ y# w7 G2 ^- }: F8 I [attach]1486500[/attach]3 @. s" b4 z* d0 S [attach]1486501[/attach]tvb now,tvbnow,bttvb9 U3 V+ l7 s( \$ d( z' S9 i& J0 l9 Q7 L [attach]1486502[/attach] % P \7 q; U- Q! W. w r3 r. Stvb now,tvbnow,bttvb[attach]1486503[/attach]tvb now,tvbnow,bttvb7 t. g' V% F6 ]7 z: X8 \ [attach]1486504[/attach] 1 E9 C- P- s3 ` A8 Btvb now,tvbnow,bttvb[attach]1486505[/attach]3 O. c+ c q3 B2 E1 ]% I$ n* H
/ o$ |/ [6 b$ K; I2 r4 W 作者: busyfun 時間: 2011-10-4 11:33 AM
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