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 5.39.217.77:8898* D& i" U. ?! N9 [' p
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If you are not a Physics person, read on and learn a fact of physics. * a1 P! S' r9 O# L2 J+ _8 ]AMAZING! & C# y) X; N8 @8 k7 @! }9 d公仔箱論壇 - a$ O$ n8 P+ I4 \% z, [公仔箱論壇Even after you see it, it is still hard to believe!2 l0 u( \' n, |- n) V [attach]1486499[/attach]tvb now,tvbnow,bttvb" F& H% F3 W, q( r2 D2 u3 c$ h7 Z
! T7 O& d1 ^) t: m' K3 Ftvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 6 C% L+ M8 T# q# D. t9 w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. 5.39.217.77:8898) B) D/ z% I. H3 j3 r1 z
It is located in the city of Magdeburg, near Berlin. - e }7 j3 f. k! o" l) I% U" T" K公仔箱論壇tvb now,tvbnow,bttvb3 r6 p+ B: D; k# V8 ]+ Y' F
The photo was taken on the day of inauguration. 4 j9 ^. [7 r% U1 m/ i6 Xtvb now,tvbnow,bttvbTo 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。# F, @$ z4 c! ~8 g8 M5 i4 F7 h. y7 ^
$ |. ^3 P% c9 o# d$ x, `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。Question: 2 R3 K2 R- O' I. K- L/ y* D" STVBNOW 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' L8 L* ?1 i$ k: G- L$ Z! h9 ^$ [
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:8898$ w7 g2 m8 \3 ?8 R, ]0 m: t2 `
Or just the weight of the water? 1 Q0 O3 F9 b% d2 W L
8 A, `& w4 F6 T0 ?& \# Stvb now,tvbnow,bttvbAnswer: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。; O9 h6 [$ D" F* F; V9 f
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It only needs to be designed to withstand the weight of the water! 5.39.217.77:8898/ ~( j( `" G. O/ g( J2 c
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公仔箱論壇2 w, v- N; U' i4 v 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。- X. U! }# j) s D ~
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。6 z/ U3 g4 q& S1 U The Incredible Magdeburg Water Bridge in Germany 9 x' G( a2 u9 c7 C& ptvb now,tvbnow,bttvbThe 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.* e6 T3 S/ ]3 W& \& H
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. : c% o! T) U6 q2 a 6 c6 }* `: o9 R, j6 {tvb 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. ! U" b: |: c# Q
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。+ c9 q& l2 b7 `& q5 b