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 8 K9 A6 ?& N6 h1 R, d4 `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。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; g1 G" s2 A2 i
If you are not a Physics person, read on and learn a fact of physics. 4 ~7 _: n# o( M) t* z, J2 vtvb now,tvbnow,bttvbAMAZING! tvb now,tvbnow,bttvb7 C% @* U4 M2 ?0 [# O 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。7 F( Q! O! G( U" }4 `: B
Even after you see it, it is still hard to believe!www.tvboxnow.com2 y) S6 P5 v! V. ~: \* M4 V [attach]1486499[/attach] 4 m9 M, a5 J( T9 e1 T! k公仔箱論壇公仔箱論壇: R2 H& E! S4 T* Z% h5 F" I& S
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! - {$ ~& Y' N5 F+ m- z& W( X; ]& mTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. " P4 h7 B, C/ B( N3 k* D
It is located in the city of Magdeburg, near Berlin. 9 A9 a) j, v4 U# p 7 N# b7 U9 i: E$ O2 c a: JThe photo was taken on the day of inauguration.tvb now,tvbnow,bttvb% L0 d* u! b; W" ?
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5 n. X' a! F& _# G9 S
! v" |: b+ A& n" rtvb now,tvbnow,bttvbQuestion:tvb now,tvbnow,bttvb; W3 _& |8 C8 M- R
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, ' H6 z. G; T* x/ ^$ jwww.tvboxnow.comOr just the weight of the water? ' D+ J. A a y' B- g 9 X: w+ {, n) D) W/ S8 H; _公仔箱論壇Answer: ( v2 w# W% V U t* A* S! r# N公仔箱論壇 1 ^4 h: m8 w1 @& a3 ntvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb/ y( o! q$ b& N8 t7 _& p
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* x# ^; ]/ {. c, G : T( c5 @4 s8 Q5 M' f公仔箱論壇0 {+ Q ], ?# w' o3 | The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb) S+ ?% ~" P: Q# z
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. 1 E( z, i# f. P2 E# }tvb now,tvbnow,bttvbThe 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. 9 s* \7 O" _) |4 D4 w8 v% J& @www.tvboxnow.com公仔箱論壇! O: x! F& ]' V/ T$ J8 E- P
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. 3 Y( }) y6 h% E ]5 E" z! w. l
