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 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。1 S( ^" {& {+ s( D
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If you are not a Physics person, read on and learn a fact of physics. , x0 y6 u6 x7 E/ gAMAZING! 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。# U6 i3 E; S% g* C" c% R) V3 [9 N # O# t: H! g0 j. c" f3 {7 P
Even after you see it, it is still hard to believe! 0 h( [& [4 j5 Q5 A+ v+ 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。[attach]1486499[/attach] 3 n5 @: \' W4 p j# o5.39.217.77:88985.39.217.77:8898; \# y p O( ~
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ) d5 n9 y( l1 Y" T0 U4 {. r
This 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# u- t# ~/ Z2 b5 Y0 S! N) b
It is located in the city of Magdeburg, near Berlin. 2 \1 S9 g. K* p, O公仔箱論壇 9 k7 D; d8 a# B/ C/ BThe photo was taken on the day of inauguration.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。) v" D5 G- |3 u0 l5 T5 `2 C5 `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* @' w- w% N" k7 @
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Question: ) L6 i" @2 B) P( T- @/ n" ]9 g2 S" i8 Q6 b
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:8898" ~- a3 Q8 L4 V& d" ? Z1 ]. i% s
Or just the weight of the water? " g9 b$ h% t `& |2 I5.39.217.77:88985.39.217.77:8898- A* u0 U- h% _( d* q1 C
Answer: ( x% s* k3 |. A5.39.217.77:8898 5 _* X/ O. C* Q, m0 zIt only needs to be designed to withstand the weight of the water! 9 T% w" G) f4 n5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded& k# g- W3 B0 K; ^ 7 S a: J H6 C) {9 Y3 z" oTVBNOW 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。 ! [* O# f* f/ V. k" x S& i- \The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb: t1 q `1 R' a {1 j
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. 6 w# |* |. R3 w( B3 Rtvb 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. 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。 N$ t: A: ], m$ B/ M* l* J
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。 Y$ H5 O( }) t. p$ @3 }3 l
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. f; q& r. X0 f) j
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