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 ! i) Q2 C* ]8 B8 k! [: K! v7 q1 w公仔箱論壇 6 ?" z( c$ D& |1 A( k8 m9 D* m: G; K5.39.217.77If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb% ? B5 P* W& T$ j4 x
AMAZING! 4 ] ~' [# S/ K: A5 ?( S5 l) E 8 X& u/ x# j0 R0 R! ctvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!公仔箱論壇& q. h' O7 ~/ k x [attach]1486499[/attach] l/ g: v+ W- J( l' a1 ]公仔箱論壇公仔箱論壇' S) x% L- o1 u, I' [
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! / x, p) p2 _0 G6 _tvb 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. 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 i3 e! D( v8 b0 T
It is located in the city of Magdeburg, near Berlin.. L" v. ~2 t. T3 q9 X
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The photo was taken on the day of inauguration. : l3 s. X! W# n' L5 j }" c0 S: ]公仔箱論壇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。$ _: o. J U# ?! t, V
6 s5 o4 Y+ }6 c( X* N0 n" U5.39.217.77Question: 3 @3 i+ _2 r1 a( I+ c5.39.217.77* t9 ]# I* p9 I% \
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, * t- y4 Q3 r6 ]; Ttvb now,tvbnow,bttvbOr just the weight of the water? & F. R) [$ G; V# X$ j( J+ M; F: K0 Ztvb now,tvbnow,bttvb公仔箱論壇9 u9 A+ r2 m: G& [- h9 B F. E0 z
Answer: ' U6 X" M) {. o$ o& k+ Q/ m+ ]5 U/ j公仔箱論壇公仔箱論壇2 O' p4 B" R" u
It only needs to be designed to withstand the weight of the water! 5.39.217.773 N9 o) y# e$ R/ A/ s' t( }
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 % }' J# I! g& C2 h4 {0 |' F0 D# Z0 R) G# ], h
. M3 h! \8 K( E( ^3 N: b/ k" `5.39.217.77The Incredible Magdeburg Water Bridge in Germany . w* m1 W/ r- n+ z' f. P3 }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.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。' h B7 Q/ A4 u5 z2 R
The 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. & ~; I$ k, S; A8 ^ S, ] 4 }# E' l0 B+ ]3 X6 Rtvb now,tvbnow,bttvbConstruction 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. 公仔箱論壇7 p6 T- o; `7 ^
" x* ~, U8 V Q- B$ n5.39.217.77TVBNOW 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 }2 r: q; X' W [attach]1486500[/attach]5.39.217.779 E7 x8 ]) n+ ^* v4 R8 ~* ]: B$ v0 } [attach]1486501[/attach] ' v- R7 K6 K$ B* Ctvb now,tvbnow,bttvb[attach]1486502[/attach]5.39.217.771 [/ m8 J6 U' ~0 Z+ F. n$ \) u y [attach]1486503[/attach]tvb now,tvbnow,bttvb/ b) W9 r: I: U/ f% k% z9 N [attach]1486504[/attach]tvb now,tvbnow,bttvb- f$ j/ I7 c r, O* m [attach]1486505[/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。: {! r% q& p/ F" J
6 ?0 {9 h: ?2 {, h- k 作者: busyfun 時間: 2011-10-4 11:33 AM
