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,bttvb7 O7 M0 h' ~( `7 i7 h9 J
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If you are not a Physics person, read on and learn a fact of physics. 1 r8 g0 B8 V( z9 P( u1 I: \8 @公仔箱論壇AMAZING! % O5 ~$ Z; y% O1 Z- a. } & b# g$ ^8 l: QEven after you see it, it is still hard to believe! s# ]) v5 a! g# p3 x% y; O6 ~; j [attach]1486499[/attach] + l. s: J9 F; V0 a8 s( o/ D: o公仔箱論壇9 v5 `' J' [ ?: X: |1 D: O; b1 @
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 7 B& g3 Q. u2 n6 V \9 f& D# u公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % p: ~( L) ?1 p- M9 @公仔箱論壇It is located in the city of Magdeburg, near Berlin. 6 _0 I1 l: s6 m p6 h5.39.217.77:8898 / E" N3 |# t4 H# W. s9 Xtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.4 c- ~5 k0 X0 U% y9 ?0 Z+ X4 E
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。* v! U$ @; d- k8 A/ t) q" l
; a( b! j# b! q& | N+ W |# E( E6 ]Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇 H7 a5 T. \( {# B# t+ g
Or just the weight of the water? " }$ w9 q! D5 v8 Q8 ltvb now,tvbnow,bttvb1 g+ o! r j7 `4 {. I1 o
Answer:5.39.217.77:88988 U' u# D: I) }
+ m3 H+ }1 Z7 z+ U1 ?+ Rtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! 5.39.217.77:8898" R7 s4 n, T! 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 loaded ' u8 r2 F+ ]% Z) O4 X. S ) ~3 L7 X" e( ?+ |# Y公仔箱論壇 9 }' `1 T" _3 V8 CThe Incredible Magdeburg Water Bridge in Germany ' ]/ s, R4 l- w }) r. w( Y公仔箱論壇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. 7 m+ }1 B& i9 Q, ~! X, h; S8 {: t0 zThe 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. 3 A& L v J) k+ S) _3 [tvb now,tvbnow,bttvb 9 K# E: g( J4 s$ A1 B# s6 V6 V2 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。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. 4 c+ Y0 _* n5 o% l# 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。: N5 Y3 E8 Y( I; h6 M' Q0 [) ~# i0 ~
