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 $ f# h7 m: {' J3 E! X 7 Y3 s+ P) Z& P4 A+ |If you are not a Physics person, read on and learn a fact of physics. 1 i! e6 U5 m4 r/ J( wAMAZING! 3 ~7 [$ S% }- H3 {- [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。' m+ i+ k ]$ s2 @% q% B
Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb" s3 I' O% R. p. F) [ T/ ^ [attach]1486499[/attach] , o" ~/ W2 Q8 _9 u# q. L" a公仔箱論壇3 E s7 _, Z* m8 n7 Z
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 3 y& B. \% |7 Y1 ptvb 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. tvb now,tvbnow,bttvb# L+ O9 s. }: s2 Y7 k5 N
It is located in the city of Magdeburg, near Berlin. ( z3 ^2 x! X) Stvb now,tvbnow,bttvb ) V' s6 i0 q- ?- G: C# X/ p5.39.217.77:8898The photo was taken on the day of inauguration.公仔箱論壇8 A4 U! D: ^# L) o
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。 i1 T& Y' c9 u! O/ m9 g+ W4 P
* q1 [9 a: w; ]- i2 O4 HTVBNOW 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。Question:tvb now,tvbnow,bttvb, N% w. ^& u" h# W w
' s9 G) P& R5 {8 N% d# f6 P8 ~5.39.217.77:8898Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, . W2 r: Y x5 E' CTVBNOW 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。Or just the weight of the water? * F9 T4 E1 e: m5 c' ?& X' e + l7 D$ \/ r/ }# a. L4 Ytvb now,tvbnow,bttvbAnswer:tvb now,tvbnow,bttvb2 q5 T6 g6 R5 D0 ^; h. f
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It only needs to be designed to withstand the weight of the water! 9 ?1 X6 h% T, w- Y$ }
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 4 \! ]+ s0 f1 W" u公仔箱論壇 + v( e: M& y; 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。公仔箱論壇9 H; H4 f r. s' Z5 d The Incredible Magdeburg Water Bridge in Germany公仔箱論壇% y, a& `+ \+ @* Y/ @" I0 H% l4 A e
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. 2 q" W3 f8 R/ O. Z" X5.39.217.77:8898The 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. $ E0 O+ I1 k6 c& }( b. F* W2 ~
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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. $ J9 p5 z& _. p. b' g0 w
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