本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. 5 c$ z( {. G% d- F( P2 t
AMAZING!
6 U0 X/ `! `* Q4 ~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。' f9 h" {! E1 v1 z5 Z0 p7 i9 `
Even after you see it, it is still hard to believe!
4 D+ ^# ]. _/ N2 z$ 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。
4 ~$ F' D5 w* k O; Wtvb now,tvbnow,bttvb公仔箱論壇2 c' n7 ~0 r a+ ?
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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' s$ Z1 D6 [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: L+ c+ d7 }$ R% H% g- `7 WIt is located in the city of Magdeburg, near Berlin.# S3 G! F: n* n8 J- O
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb: b" R7 q2 G6 [
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb. D9 o, J' y9 _7 c- S
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Question:公仔箱論壇' m4 g. t- h4 {3 G+ w3 y+ p1 [6 a
' Y. V# P& q( f; b. n$ _6 i4 \公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
6 ^+ X* s: j3 e: m p$ V5 c d. lOr just the weight of the water?
9 K! ` q: p! V/ jTVBNOW 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。2 B R0 T( n( b2 k; M! H+ u" Q5 y2 b; o5 w/ y
Answer:公仔箱論壇% W% m) v$ d0 w# y
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。0 ~" U; A# n- M/ @" D0 a8 J
It only needs to be designed to withstand the weight of the water!
/ ?! x# a- f. p) O5.39.217.76Why? 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) t8 p# x$ {/ k+ t) [0 Q$ {
- X B7 q( A" B# |tvb now,tvbnow,bttvb公仔箱論壇" Q6 E1 N; o1 R5 S6 D
The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb T+ @8 L! [1 b0 n& e! i" }! h
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.5.39.217.76; s; I+ n1 P0 a- ]4 \* ?" _
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. tvb now,tvbnow,bttvb* _; R+ E2 U; z z
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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. 公仔箱論壇- W M$ a) g% c r3 g
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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# J% t& `$ O9 w/ ^0 Y- @
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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。5 _" }, ~. j5 f9 ?6 x
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