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 / r* v( T( |$ g1 Z6 s0 W2 b4 n" e2 y$ o3 t
If you are not a Physics person, read on and learn a fact of physics. % c* X% T0 b; {2 KTVBNOW 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。AMAZING! " ?$ ]1 T; A7 |; L3 o2 ?6 v # v6 Q4 @ H/ U: z/ K7 Q) r) eEven after you see it, it is still hard to believe!5.39.217.77:88988 V% a. t# {! i2 x7 i [attach]1486499[/attach]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。4 r; D2 G& I, n
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。 a% }2 _+ I( K
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ( K8 D& i5 R5 g" KThis 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# I! k' P- m6 `0 _
It is located in the city of Magdeburg, near Berlin. - b0 }% `* d( P* n/ P! DTVBNOW 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。 # R5 H3 b( ]2 {# L! XThe photo was taken on the day of inauguration.公仔箱論壇- F7 l# I) i" d) _0 ~; ^% k
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。# u; u1 E. |5 N
tvb now,tvbnow,bttvb; Z9 _' F% ?+ v6 B$ n% f0 b
Question:tvb now,tvbnow,bttvb2 [% ^* T4 v9 p6 ?
1 @) E) R7 u: N9 b" N. aDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5 a: a* X( I2 o" z
Or just the weight of the water? 公仔箱論壇0 u" s5 h4 I$ B8 K2 e+ I
2 R, r! ~0 r; K公仔箱論壇Answer: * v5 z% X5 D7 Y& b+ k+ ~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。tvb now,tvbnow,bttvb6 q" K( T, w5 [
It only needs to be designed to withstand the weight of the water! 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。3 S1 p: ?6 v0 f
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb# N4 @* n( D3 ]4 [+ j* z. R% E ) `4 n t" Q! U3 v" q9 Z O) t" ]0 O5 v6 }0 [ The Incredible Magdeburg Water Bridge in Germany : Z) j) {+ c+ y. t' W0 V2 x9 S; rThe 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 j+ Y% g* z% j% bThe 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. g1 g" g$ }# v. q; u2 K4 e- v* I. m # v2 o1 g3 |4 @/ Z# h& qConstruction 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. 7 k1 _" M& o P: S6 o) x. G5.39.217.77:88987 ^- k7 |& m5 i
